Engineering

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Engineering

Chain Installation and MaintenanceEngineering9The following precautions must be taken before disconnecting andremoving a chain from a system prior to replacement.1. Always isolate the power source from the drive or equipment.2. Always wear safety glasses.3. Always wear appropriate protective clothing, hats, gloves andsafety shoes as warranted by the circumstances.4. Always ensure tools are in good working condition and used inthe proper manner.5. Always loosen tensioning devices.6. Always support the chain to avoid sudden unexpected movementof chain or components.7. Never attempt to disconnect or reconnect a chain unless the chainconstruction is fully understood.8. Always ensure that directions for the correct use of any tools arefollowed.9. Never reuse individual components.10.Never reuse a damaged chain or chain part.Note: Failure to follow these practices could result in serious injury or death.www.renoldjeffrey.com • advancing chain technology 87


Chain Installation and MaintenanceEngineering9IntroductionRenold has more than 100 years of experience in theoperation and maintenance of roller chain. Involvementwith designers, manufacturers, and users of all types ofequipment has enabled Renold Jeffrey to develop thisdefinitive guide, designed to pass on the preferredmethods of correct handling, adjustment, installation, andmaintenance of roller chain drives resulting in maximumchain life.Should you require any further information, please contactour technical sales staff.Care must be taken with sprockets of split design toensure perfect adjoining of the faces of each half. Proceedwith the key fitting after the halves are finally bolted together,otherwise the key can prevent correct assembly andsubsequently result in malgearing.Verify that key heads will not project beyond the width ofany chain cases.Checking Sprocket AlignmentAccurate alignment of shafts and sprocket tooth facesprovides a uniform distribution of load across the entire chainwidth and contributes substantially to maximum drive life.Equipment NeededBreak chain with a Renold Chain Extractor:• 10101 for chains from 0.375” to 0.625” pitch• 10102 for chains from 0.75” to 1.25” pitchFor joining any chain up to 2.5” pitch, a drift punch will berequired.Construction of medium or heavy chain drives requiresmillwrighting equipment such as lifting tackle, slings,wedges, packing, etc.OTHER USEFUL EQUIPMENTQuantity of inner and outer linksStraight edges and/or strong, fine lineSpirit levelPlumb lineSelection of hammers, files, key blanks, etc.PreparationCheck equipment to ensure that general transmissionrequirements are correct (e.g. flexible couplings, flywheel,means of drive adjustment).Check condition and rigidity of the shafts and bearings,particularly if there has been considerable previousservice with an alternative method of transmission.Replace or correct if necessary.Driver and driven shafts should be checked to ensure theyare level and parallel to each other. This also applies to theidler shaft, if present.Use a spirit level and adjustable comparator bar ormicrometer between shafts at extreme points on each sideof the drive. Correct any parallelism errors and mark apermanent data line for the adjustable shaft.Place sprockets or respective shafts in approximatealignment and fit the keys in accordance with correctengineering practice. Do not secure keys at this stage.Use a straightedge across the machined faces of thesprockets in several different positions, if possible, as acheck against wobble. A nylon or similar line is a goodsubstitute for a straightedge, particularly on longer centerdistances.Should endwise “float” of shafts be present, make dueallowance so that sprocket alignment is correct at the midposition of “float.”When alignment is correct within closest practical limits,drive the keys home and take a final check on sprocketalignment.88www.renoldjeffrey.com • advancing chain technology


Important NoteSprockets should always be designed to be as close to thesupporting bearings as possible.Installation of ChainRenold Chain should not be assembled on the sprocketsuntil attention has been paid to:1. Cleanliness of the sprocket teeth, particularly if debris ofan abrasive nature (cement dust, weld spatter, etc.), hasbeen prevalent while work was in progress.2. Temporary positioning of the lower section of a chaincase, if present. In restricted spaces, maneuvering oflarge sections is often simplified by using the spacesbetween shafts that will later be occupied by the chain.Ensure the chain is clean and free of debris and placearound the sprockets, observing instructions wherematched strands are involved. In chain with two or morestrands, joining is most easily accomplished at the midspanof the drive, drawing the chain ends together with achain clamp or rope tackle block. Ensure that the strengthof the drawing tackle is sufficient to hold the chain. Chainweights are shown in the Renold Jeffrey catalog. Wheninserting the joining link of multi-strand chain, ensure theintermediate plates are assembled. Do not detach thedrawing tackle until the link is completely assembled. Whenonly partially inserted through the inner link, the weight ofthe chain on release can splay or distort unsupportedbearing pins.Adjust the chain using the data mark mentioned in thepreparation section to retain shaft parallelism.For a chain of average center distance (30-50 x chainpitch) correct adjustment is when the midpoint of thelongest span can be fully moved by hand in accordancewith dimension ‘A’ shown in diagram one.Chain Installation and MaintenanceChain cases• Position the chain case bottom sections with the shaftsconcentric in their cavities.• Manufacture suitable mountings and brackets to ensurerigidity.• Assemble the oil supply and return pipe system and thedrive to the oil pump.• Assemble top section(s) of chain case.• Fill the oil sump and check delivery to the chain.Chain AdjustmentTo maximize chain life, some form of chain length adjustmentmust be provided, preferably by moving one of the shafts.(See diagram three on page 90.) If shaft movement is notpossible, an adjustable idler sprocket engaging with theunloaded strand of the chain is recommended. Generally,the idler should have the same number of teeth as thedriver sprocket and care should be taken to ensure speeddoes not exceed the maximum ratings shown.The chain should be adjusted regularly so that with onestrand tight, the slack strand can be moved a distance of'A' at the midpoint. (See diagram one.)To accommodate for any eccentricities of mounting, theadjustment of the chain should be tested through acomplete revolution of the large sprocket.Adjustment is achieved either by the movement of oneof the shafts or by use of the idler sprocket. The amountof the adjustment provided by either method should besufficient to take up chain wear amounting to two pitchesor 2% elongation above nominal chain length, whicheveris the smallest.Diagram TwoEngineering9Diagram OneOver-tensioning should be avoided in all cases.When used for adjustment, an idler sprocket should bepositioned on the unloaded side of the chain, preferablynearer to the driven sprocket and gearing with the outsideof the chain. It should have an initial chain lap of at leastthree teeth and a free length of chain not less than fourpitches between it and the nearest sprocket.(See diagram two above.)Generally, the number of teeth in any idler sprocket shouldnot be less than the smallest sprocket and care should betaken to ensure that the speed does not exceed themaximum recommended. Where necessary, severalsprockets can be used on a single drive, thereby meetingall possible needs for adjustment.www.renoldjeffrey.com • advancing chain technology 89


Chain Installation and MaintenanceAll mountings for idler sprockets should be rigid and whenmanual adjustment is provided, the moving member mustbe securely locked in position after adjustments have beenmade.Engineering9Diagram ThreeTest RunGive the drive a short test run:1. to regulate oil delivery to the chain;2. to eliminate any oil weeps from the chain case andpipework;3. to check for any unusual noise or vibration.Maintenance ScheduleRegular chain maintenance is important to obtain maximumlife. In a correctly sized and installed drive, chain can beexpected to last for approximately 15,000 hours.The following maintenance schedule is suggested.AFTER 3 MONTHS• Check chain adjustment and rectify if necessary.• Change oil, oil filter, and clear the sump.ANNUALLY• Carry out the above checks.• Check for wear on sideplates.• Check for chain elongation.• Check cleanliness of components:- Remove any accumulation of dirt or foreign materials.• Check for shaft and sprocket alignment.• Check for wear on sprockets.• Check the condition of the lubricant.• Check the lubrication system:- Feed pipes are not clogged.- Lubrication schedule is being followed(manual lubrication).- Drip rate is sufficient (drip system).- Oil level is correct (drip, bath and disc systems).- Pump is working (stream system).AUTOMATIC ADJUSTMENTAutomatic adjustment can also be provided, but thisadjustment generally demands a special study of theconditions to enable a suitable design to be provided.Chain ProtectionA new Renold Chain should always be stored in its boxand/or bag until installation. Renold Chain is lubricated atthe factory, but this lubrication will not stand up to outdoorconditions, particularly in a saltwater atmosphere.Unprotected, lubricated chains will become contaminatedwith grit and other materials that will harm the chain andtend to clog strainers, filters, and oil lines. A roller chain isa precision-made series of bearings that will perform bestif handled and stored in correct conditions.90www.renoldjeffrey.com • advancing chain technology


LubricationRenold Chain drives should be protected against dirt andmoisture and lubricated with good quality, non-detergentpetroleum-based oil. A periodic change of oil is desirableas already outlined. Heavy oils and greases are generallytoo stiff to enter the chain working surfaces and should notbe used.Care must be taken to ensure that the lubricant reaches thebearing area of the chain. This can be done by directingthe oil into the clearances between the inner and outerlinkplates, preferably at the point where the chain entersthe sprocket on the bottom strand.The table below indicates the correct lubricant viscosity forvarious ambient temperatures.Chain Installation and MaintenanceLUBRICATING METHODSThere are four basic methods for lubricating chain drives.The recommended methods are shown in the rating charts,which are determined by the chain speed and powertransmitted.TYPE 1: Manual LubricationOil is applied periodically with a brush or oil can, preferablyonce every eight hours of operation. Volume and frequencyshould be sufficient to just keep the chain wet with oil andallow penetration of clean lubricant into the chain joints.RENOLDEngineering9Ambient Temperature Lubricant Rating°F °C SAE BS423123 to 41 -5 to +5 20 46 to 6841 to 104 5 to 40 30 100104 to 122 40 to 50 40 150 to 220122 to 140 50 to 60 50 320For the majority of applications in the above temperaturerange, a multigrade SAE 20/50 oil is suitable.USE OF GREASEAs mentioned above, the use of grease is notrecommended. However, if it is essential to use greaselubrication, the following points should be noted:• Limit chain speed to approximately 13 feet/sec.(4 meters/sec.)• Applying normal greases to the outside surfaces of achain only seals the bearing surfaces and will not workinto them. This causes premature chain failure. Greasemust be heated until fluid and the chain are immersedand allowed to soak until all air bubbles cease to rise.If this system is used, the chains need regular cleaningand regreasing at intervals, depending on the drives,power, and speed.ABNORMAL AMBIENT TEMPERATURESFor elevated temperatures up to 482°F (250°C), drylubricants such as colloidal graphite or MoS2 in whitespirit or poly-alkaline glycol carriers are most suitable.Conversely, at low temperatures between -40°F and 23°F(-40°C and -5°C), special low temperature initial greases,and subsequent oil lubricants are necessary. Lubricantsuppliers will give recommendations.Applying lubricant by aerosol can be satisfactory undersome conditions, but it is important that the aerosollubricant is of an approved type for the application, suchas that supplied by Renold Jeffrey. This type of lubricantpenetrates into the pin/bushing/roller clearances, resistingboth the tendency to drip or drain when the chain isstationary and centrifugal “flinging” when the chain is moving.TYPE 2: Drip LubricationOil drips are directed between the linkplate edges from adrip lubricator. Volume and frequency should be sufficientto allow penetration of lubricant into the chain joints.TYPE 3: Bath or Disc LubricationWith oil bath lubrication, the lower strand of chain runsthrough a sump of oil in the drive housing. The oil levelshould cover the chain at its lowest point during operation.www.renoldjeffrey.com • advancing chain technology 91


Engineering9Chain Installation and MaintenanceWith slinger disc lubrication, an oil bath is used but thechain operates above the oil level. A disc picks up oilfrom the sump and deposits it on the chain by means ofdeflection plates. When such discs are employed, theyshould be designed to have peripheral speeds between590 and 7,350 ft./min.TYPE 4: Stream LubricationA continuous supply of oil from a circulating pump orcentral lubricating system is directed onto the chain.It is important to ensure that the spray holes from whichthe oil emerges are in line with the chain edges. The spraypipe should be positioned so that the oil is delivered ontothe chain just before it engages with the driver sprocket.This ensures that the lubricant is centrifuged through thechain and assists in cushioning roller impact on the sprocketteeth. Stream lubrication also provides effective cooling andimpact damping at high speeds. It is, therefore, importantthat the method of lubrication specified is closely followed.Measuring Chain WearA direct measure of chain wear is the extension in excessof the nominal length of the chain. Chain wear can, therefore,be ascertained by length measurement in line with theinstructions given below.• Lay the chain, which should terminate at both endswith an inner link (roller link), on a flat surface and, afteranchoring it at one end, attach a turnbuckle and a springbalance to the other end.• Apply a tension load by means of the turnbuckleamounting to:For single-strand chain:For double-strand chain:For triple-strand chain:Where P is the pitch in inches.M(25.4 x P) 2 x .173 lbs(25.4 x P) 2 x .351 lbs(25.4 x P) 2 x .524 lbsIn the case of extended pitch chains (e.g. chains havingthe same breaking load and twice the pitch) apply ameasuring load as for the equivalent short pitch chains.As an alternative to the use of a turnbuckle and springbalance, the chain may be hung vertically and theequivalent weight attached to the lower end.EFFECT OF TEMPERATUREDuring operation an important factor to control in a drivesystem is the chain and chain case temperature. Dependingon the severity of the drive service, continuity of use, etc.,special attention to the lubrication method may be required.Chain temperatures above 212°F (100°C) should beavoided if possible due to lubricant limitations, althoughchain can generally give acceptable performance up toapproximately 482°F (250°C) in some circumstances. Oneway of improving the effectiveness of the lubrication andits cooling effect is to increase the oil volume (up to 1.2gallons per minute or 4.5 liters per minute per chain strand)and incorporate a method of external cooling for the oil.• Measure length ‘M’ (see diagram) in inches from whichthe percentage extension can be obtained from thefollowing formula:Percent Elongation = M - (X x P) x 100X x PWhere X = number of pitches measuredP = pitch in inches• As a general rule, the useful life of the chain is terminatedand the chain should be replaced when the percentageextension reaches 2 percent (1 percent in the case ofextended pitch chains). For drives with no provision foradjustment, the rejection limit is lower, dependent uponthe speed and layout. A usual figure is between 0.7 and1.0 percent extension.CHAIN WEAR GUIDEA simple to use chain wear guide is available fromRenold Jeffrey for most popular sizes of chain pitch.Please contact your sales office for details.92www.renoldjeffrey.com • advancing chain technology


Riveting Chain EndlessROLLER CHAINS UP TO 2.5” PITCH (63.5mm)• Insert the bearing pins of the outer link through the innerlink of the chain to be joined. If multi-strand chain,assemble intermediate plates at the same time.• Provide support for the outer link while assembling theseparate outer plate. This has a force fit and is drivenonto the bearing pins using a hollow punch alternativelyon each pin. Drive up to the shoulder on the shoulderedbearing pins. Where there is no shoulder the plate isdriven to the point of similar clearance between outerand inner links as with the adjacent chain.Chain Installation and MaintenanceChain Length AlterationsAll drives should be designed, whenever possible, withsufficient overall adjustment to ensure the use of an evennumber of pitches throughout the useful life of the chain.Offset links should never be used on highly loaded orhigh-speed chain drives.In less arduous conditions where the use of an offset link isunavoidable, the diagrams below show how length alterationcan be accomplished.A chain with an even number of links requires the incorporationof an offset link to effect an alteration of one pitch.Chain with an odd number of links incorporates an offsetlink, which must be removed to effect an alteration of onepitch.By removing the parts shown in dark shading and substitutingthose in light shading, a chain can be shortened or lengthenedby one pitch.No link that relies on a press fit for assembly should bereused after removal. A new link should always beemployed.Engineering9• Still supporting the outer link, rivet the bearing pin ends,taking care to finish with a neat uniform spread havinga similar appearance to the machine-riveted pins in theadjacent chain. The force required to spread the pin endwill vary with the pitch of the chain; excessive rivetingforce should always be avoided. Except where finalchain joining in position is necessary, the work shouldbe carried out on a bench.• Check that the newly fitted link articulates freely in theadjacent inner link.www.renoldjeffrey.com • advancing chain technology 93


Chain Installation and MaintenancePairing and Matching ChainsAny application in which two or more strands of roller chainare required to operate side by side in a common drive orconveying arrangement may involve the need for eitherEngineering9pairing or matching. Such applications generally fall intoone of the following categories:Length Matching for Conveying and SimilarApplicationsWherever length matching of roller chain is necessary it isdealt with as follows:• The chains are accurately measured in handling lengthsbetween 10 feet and 25 feet as appropriate and thenselected to provide a two (or more) strand drives thathave overall length uniformity within close limits. Thoughsuch length uniformity will not necessarily apply to anyintermediate sections along the chains, the actual lengthof all intermediate sections, both along and across thedrive, will not vary more than our normal manufacturinglimits. However, attachment chains are usuallymanufactured to specific orders, which are generallycompleted in one production run so that it is reasonableto assume that length differences of intermediatesections will be small.• Chains are supplied in sets that are uniform in overalllength within reasonably fine limits and will be within ournormal manufacturing limits. It should be noted thatchain sets supplied against different orders at differenttimes may not have exactly the same lengths to thosesupplied originally, but will vary by no more than ournormal tolerance of 0.0%, +0.15%.Pitch Matching Roller ChainsPitch-matched chains are built up from shorter subsections(usually 1- to 2-foot lengths) which are first measured andthen graded for length. All subsections in each grade areof closely similar length and those forming any one groupacross the set of chains are selected from the same lengthgrade.The requisite number of groups are then connected toform a pitch-matched set of chains, or alternatively, if toolong for convenient handling, a set of handling sections forthe customer to assemble as a final set of pitch-matchedchain. Suitable tags are fixed to the chains to ensure theyare connected together in the correct sequence.Identification of Handling LengthsHandling Handling HandlingLength 1 Length 2 Length 3A Strand A-A1 A1-A2 A2-A3B Strand B-B1 B1-B2 B2-B3C Strand C-C1 C1-C2 C2-C3Long chains are made up in sections; each section isnumbered on end links. Sections should be so joined upthat end links with similar numbers are connected. Whenchains are to run in sets of two or more strands, eachstrand is stamped on the end links of each section with aletter, in addition to being numbered. Correct consecutivesections for each strand must be identified from the endlinks and joined up as indicated.By these means, the actual length of any intermediateportion of one strand (as measured from any one pitch point toany other) will correspond closely with that of the transverselyequivalent portion on the other strands, generally within 0.002in., depending on the chain pitch size.Pitch Matching Attachments Fitted to ChainsWith the sole exception of extended bearing pins, it is notpossible to match the pitch of holes in attachmentsthemselves to within very fine limits, due to the additionaltolerances to be contended with (bending, holing, etc.).Color CodingFor customers who wish to match their chains,Renold Jeffrey color codes short lengths of chain withinspecified tolerance bands. These will normally be red,yellow, or green paint marks to indicate lower, mid, andupper thirds of the tolerance band. For even finer tolerancebands, additional colors can be used. Normally amaximum of five colors is more than adequate.ColorToleranceRED 0.05%YELLOW 0.10%GREEN 0.15%BLUEFor finerWHITEtolerancesRepair and ReplacementSPROCKETSExamination of the tooth faces indicates the amount ofwear that has occurred. Under normal circumstances, thiswill be evident as a polished worn strip about the pitchcircle diameter on each of the sprocket teeth as shownbelow.X =PCDY10YDepthof wearIf the depth of this wear “X” has reached an amount equalto 10 percent of the “Y” dimension, then steps should betaken to replace the sprocket. Running new chain onsprockets having this amount of tooth wear will cause rapidchain wear.It should be noted that in normal operating conditions withcorrect lubrication, the amount of wear “X” will not occuruntil several chains have been used.XPCD94www.renoldjeffrey.com • advancing chain technology


CHAINChain repair should not, as a rule, be necessary. A correctlyselected and maintained chain should gradually wear outover a period of time, (approximately 15,000 hours) but itshould not fail. A length extension check as detailed onpage 92 will give an indication of the service life remaining.If a transmission chain sustains damage due to an overload,jam-up, or by riding over sprocket teeth; it should becarefully removed from the drive and given a thoroughvisual examination. Remove the lubricating grease andoil to make the job easier.Depending on the damage, it may be practicable to effecttemporary repairs using replacement links. It is not, however,a guarantee that the chain has not been overstressed andso made vulnerable to a future failure. The best policytherefore is to remove the source of trouble and fit a new chain.If a chain has failed two or more times, it is certain thechain will fail again in time. If no replacement is immediatelyavailable, repair the chain, but replace it at the nearestopportunity.The entire chain should be replaced because of thefollowing reasons:• The cost of downtime to the system or machine canoften outweigh the cost of replacing the chain.• A new or even used portion of chain or links assembled intothe failed chain will cause whipping and load pulsation. Thiswill likely produce rapid chain failure and will acceleratewear of both the chain and its sprockets.Assembling Connecting LinksWhen assembling a connecting link with a slip-fit outerplate, the plate must be pushed down on the pins to permitinsertion of the fastener. Always ensure that the closed endof the spring clip is in the direction of rotation.On a press-fit connecting link, it is necessary to drive theouter plate down far enough on the pins to allow insertionof the two split pins, but not so far as to create a tight joint.By doing the above, three important things are accomplished.• The desired clearances between the link plates acrossthe chain width are maintained. Any outer link platedriven too far down the pins squeezes the joint, so thatno lubrication can get to the bearing surfaces. Suchsqueezing of a joint prevents a chain articulating freelyaround the sprockets.• Correct assembly of a connecting link into a chainwill ensure a smooth gearing action with a minimumof whipping.• With the split pins or spring clip snugly positionedagainst the side plate and the closed end of a springclip fitted in the right direction, there will be less of atendency for them to work loose and fall off.Chain Installation and MaintenanceSafety WarningsCONNECTING LINKSSlip-fit connecting links should not be used where highspeed or arduous conditions are encountered. In these orequivalent circumstances where safety is essential, a pressfitconnecting link must be used.GOOD DESIGN PRACTICESFor high speed drives or drives operating in arduousconditions, a properly riveted outer link should always beused for optimum security, in preference to any other formof chain joint.The use of other connecting and offset links should alwaysbe restricted to light duty, non-critical applications, in driveswhere an odd number of pitches is absolutely unavoidable.Wherever possible, drives should have sufficient overalladjustment to ensure the use of an even number of pitchesthroughout the useful life of the chain. A offset link shouldonly be used as a last resort.Health and Safety WarningThe following precautions must be taken before disconnectingand removing a chain from a drive prior to replacement,repair or length alteration.1. Always isolate the power source from the drive orequipment.2. Always wear safety glasses.3. Always wear appropriate protective clothing, hats,gloves and safety shoes as warranted by thecircumstances.4. Always ensure tools are in good working condition andused in the proper manner.5. Always loosen tensioning devices.6. Always support the chain to avoid sudden unexpectedmovement of chain or components.7. Never attempt to disconnect or reconnect a chainunless the chain construction is fully understood.8. Always ensure that directions for the correct use ofany tools are followed.9. Never reuse individual components.10. Never reuse a damaged chain or chain part.11. On light duty drives where a spring clip is used, alwaysensure that the clip is fitted correctly with the closedend pointing in the direction of travel.Engineering9www.renoldjeffrey.com • advancing chain technology 95


Engineering9Chain Installation and MaintenanceTroubleshooting GuideChain Condition or SymptomPossible Cause of ProblemRusted chain• Exposed to moisture• Water in lubricant• Inadequate lubricationChain Condition or SymptomPossible Cause of ProblemSuggested Remedy• Replace chain with Renold JeffreyNickel-Plated, Hydro-Service ® ,orStainless Steel products.• Change lubricant. Protectlubrication system from water.Replace chain if necessary.• Provide or re-establish properlubrication.Suggested RemedyExcessive noiseChain Condition or SymptomWear on roller link plates and on oneside of the sprocket tooth surface• Obstruction• Loose casing or shaft mounts• Excessive chain slack• Excessive chain wear• Excessive sprocket wear• Sprocket misalignment• Inadequate lubrication• Chain pitch is too large• Too few sprocket teethPossible Cause of Problem• Sprocket misalignment• Inspect and remove obstruction.Replace chain if necessary.• Tighten fasteners.• Re-tension chain.• Replace chain.• Inspect chain for damage andreplace sprockets.• Inspect chain and sprockets fordamage and re-align sprocketsand shafts.• Inspect chain. Clean and establishcorrect lubrication.• Redesign the drive using a smallerchain pitch (multiple strands), ifpossible.• Check to see if larger sprocketscan be used. If not, redesign driveusing a smaller chain pitch (multiplestrands), if possible.Suggested Remedy• Inspect chain and sprockets fordamage and re-align sprockets andshafts.Chain Condition or SymptomChain clings to sprocket teethPossible Cause of Problem• Excessive sprocket wear• Sprocket misalignmentSuggested Remedy• Inspect chain for damage andreplace sprockets.• Inspect chain and sprockets fordamage and re-align sprockets andshafts.Chain Condition or SymptomChain climbs the sprocket teethPossible Cause of Problem• Excessive chain slack• Excessive chain wear• Excessive sprocket wear• Extreme overloadSuggested Remedy• Re-tension chain.• Replace chain.• Inspect chain for damageand replace sprockets.• Inspect the drive. Replacechain and eliminate the causeof overload.96www.renoldjeffrey.com • advancing chain technology


Chain Condition or SymptomMissing or broken cottersChain Installation and MaintenancePossible Cause of Problem• Cotters installed improperly• Excessive Vibration• Excessive chain speedTroubleshooting GuideSuggested Remedy• Install new cotters.• Reduce vibration. Use largersprockets if possible.• Reduce speed if possible orredesign for smaller-pitch chain(multiple strands).Engineering9Chain Condition or SymptomBroken link platesUltimate Strength FailurePossible Cause of Problem• Extreme overloadSuggested Remedy• Replace chain and inspect all drivecomponents for damage. Replacedamaged components and eliminatethe cause of overload.Fatigue Failure• Loading is greater than the chain'sdynamic capacity• Inspect the drive to determine thecause of high load and eliminate ifpossible. Redesign the drive using ahigher-capacity chain if the cause ofhigh load cannot be eliminated.Stress Corrosion CrackingChain Condition or SymptomPin failuresBroken Pins• Exposure to severe corrosion incombination with high interferencefits• Hydrogen embrittlement fromimproper plating of chain.Possible Cause of Problem• Extreme overload• Protect the chain from corrosion oruse stainless steel products.• Never plate chains. Order platedchain from the manufacturer.Suggested Remedy• Replace chain and inspect all drivecomponents for damage. Replacedamaged components and eliminatethe cause of overload.Pin GallingTurned Pins• Inadequate lubrication• Overload• Overload• Replace chain and lubricate properly.• Replace chain and inspect all drivecomponents for damage. Replacedamaged components and eliminatethe cause of overload.• Replace chain and inspect all drivecomponents for damage. Replacedamaged components and eliminatethe cause of overload.www.renoldjeffrey.com • advancing chain technology 97


Engineering9Design GuideSECTION98www.renoldjeffrey.com • advancing chain technology


Engineering9Design GuideModern chain has features that enable demandingapplications to be tackled with ease. These include highwear and fatigue resistance, as well as transmissionefficiency of approximately 98 percent.Chain is also now manufactured in multiple strands joinedtogether by a common pin, giving more scope for increasedpower transmission in restricted space. The range ofproducts — now available with alternative materials, specialcoatings, endless varieties of attachments, hollow bearingpins, and anti-backbend, to name just a few — give scopefor the widest portfolio of design solutions imaginable.Together with improvements to factory-applied greases andbetter understanding of applications, designers can nowspecify transmission chain with confidence.Chain PerformanceRenold Jeffrey chain products that are dimensionally inline with the ISO standards far exceed the stated minimumtensile strength requirements. However Renold does notconsider breaking load to be a key indicator of performancebecause it ignores the principal factors of wear and fatigue.In these areas, Renold products are designed to produce thebest possible results and independent testing proves this.In this catalog, where the breaking load is quoted, it shouldbe noted that we are stating that the Renold product conformsto the ANSI minimum standard. Independent test resultsshow that the minimum (many companies quote averages)breaking loads were far in excess of the ISO minimum.Where the quoted breaking load is not described as beingthe ANSI minimum, the product has no relevant ISOstandard. In this case, the breaking loads quoted are theminimum guaranteed.The performance of a chain is governed by a number ofkey factors. The tensile strength is the most obvious sincethis is the means by which a chain installation is roughlysized. However, since a chain is constructed from steel,the yield strength of which is around 65 percent of theultimate tensile strength, any load above this limit willcause some permanent deformation to take place withconsequent rapid failure.Reference to the s-n curve below shows that at loads belowthis 65 percent line, finite life may be expected, and, atsubsequent reductions in load, the expected life increasesuntil the fatigue endurance limit is reached at around8,000,000 operations.s-n curveSLOADABCBreakingLoadCycles to failureZONEABCFailureModeOverloadFatigueWearPermanentDeformationEnduranceLimit1 8.0x10 6 n65%Loads below the endurance limit will result in infinite fatiguelife. The failure mode will then become wear related, whichis far safer, since a controlled monitor of chain extensioncan take place at suitable planned intervals. In practice, ifa load ratio of tensile strength to maximum working load of8:1 is chosen, then the endurance limit will not normally beexceeded. Careful consideration of the expected maximumworking loads should be given since these are often muchhigher than the designer may think! It is also a requirementthat any passenger lift applications are designed with asafety factor of not less than 10:1.In most applications, wear is the designed failure mode andtherefore, some consideration of how a chain behaves inthis mode are shown below.Examination of the wear characteristics graph belowshows that chain tends to wear in three distinct phases.The first phase, shown as “bedding in,” is a very rapidchange in chain length associated with componentsadjusting to the loads imposed on them. The degree ofthis initial movement willdepend to a largeextent on the qualityof chain used — forexample, goodcomponent fits, chainpre-loaded atmanufacture, platesassembled squarely,etc. Renold Chain hasmany features thatminimize the degreeof bedding in.Wear CharacteristicsElongation (%)Bedding in. Adjust tensionInitial wearProjected life15,000 hoursSteady state wear100 200Elapsed Time (hours)The second phase, shown as “initial wear,” might also bedescribed as secondary bedding in. This is caused firstby the rapid abrasion of local high spots between themating surfaces of the pin and bushing, and secondly,by displacement of material at the bushing ends. This isexplained more clearly by the inner link assembly diagramshown, which demonstrates that in order to ensure goodfatigue life, the bushing and plate have a high degree ofinterference fit resulting in a tendency of the bushing endsto collapse inwards slightly. This localized bulge will wearrapidly until the pin bears equally along the length of thebushing. Renold limits this effect by introducing specialmanufacturing techniques. Some manufacturers maintaincylindricity by reducing the interference fit to a very lowlevel. This reduces fatigue performance.The final steady state of wearwill continue at a very low rateuntil the chain needs renewal.In a correctly designed andlubricated system, 15,000 hoursof continuous operation shouldbe expected.Tendency of bushing tocollapse at assembly100www.renoldjeffrey.com • advancing chain technology


The reason why wear takes place at all is demonstratedwith reference to the Stribeck diagram below. It shows thatwhere two mating surfaces are in contact, the coefficient offriction is very high at the point of initial movement, knownas static friction. The reason for this is because the surfaceirregularities of the two bodies are interlocked with littleor no separating lubrication layer. As the surface speedsincrease, lubricant is drawn between the two surfaces andfriction takes place with some surface contact. This conditionis known as “mixed friction.” These two conditions result inmaterial loss over time. With a continuing increase in surfacespeed, hydrodynamic friction occurs during which there isno metal-to-metal contact.Stribeck diagramCoefficient of frictionStatic frictionMixedfrictionBoundary frictionHydrodynamic frictionRotational speedIf we consider the actionof the mating surfacesof the bushing and pinduring one cycle of a twosprocketsystem, it willquickly be realized thatthese components arestationary with respectto each other duringtravel from one sprocket to the other, and accelerate rapidlythrough a very small angle when engaging with the sprocketbefore coming to rest once more. This means that thepin/bushing combination is operating between the staticand mixed friction states and that lubrication will thereforebe an important aspect of system design.Wear FactorsAs already shown, wear takes place from the frictionbetween the mating of the pin and bushing. The rate ofwear is primarily determined by the bearing area and thespecific pressure on these surfaces. The hardened layersof the pin and bushing are eroded in such a way that thechain will become elongated.ELONGATION may amount to a MAXIMUM of 2 percentof the nominal length of the chain. Above 2 percentelongation, there can be problems with the chain ridingup and jumping the sprocket teeth.Elongation should be limited to 1 percent when:• A sprocket in the system has 90 teeth or more.• Perfect synchronization is required.• Center distances are greater than recommended andnot adjustable.Design GuideWear depends on the following variables in a drive system:• SPEED - The higher the speed of a system, the higher thefrequency of bearing articulations, so accelerating wear.• NUMBER OF SPROCKETS - The more sprockets used in adrive system, the more frequently the bearings articulate.• NUMBER OF TEETH - The fewer the number of teeth ina sprocket, the greater the degree of articulation, thehigher the wear.• CHAIN LENGTH - The shorter the length of chain, themore frequently the bearings in the chain will have tooperate, the faster wear takes place.• LUBRICATION - As already shown, using the correctlubrication is critical to giving good wear life.Chain TypesSINGLE-STRAND CHAINSTANDARD ISO 606 ANSI B29.1DOUBLE-STRAND CHAINSTANDARD ISO 606 ANSI B29.1TRIPLE-STRAND CHAINSTANDARD ISO 606 ANSI B29.1As with all engineered products, industry demands thatchain be produced to a formal standard. The key rollerchain standards are summarized on page 102.Engineering9When the demands of the system become even higher,it is necessary to reduce the allowable percentage ofelongation further.www.renoldjeffrey.com • advancing chain technology 101


Engineering9Design GuideInternational StandardsEuropean StandardISO 606 and DIN 8187 cover chains manufactured to theabove standards. These standards cover three versions:• Single-Strand• Double-Strand• Triple-StrandThe range of pitch sizes can vary from 4mm (0.158 inch)to 114.3mm (4.500 inch).They are characterized by a large pin diameter, especiallyfor the larger pitch sizes. This results in better wearresistance due to the greater bearing area.The ISO standard has a simple form of part numbering, forexample, 1/2-inch pitch double-strand chain would be 08B-2.• The first two digits are the pitch size in 1/16ths of aninch, therefore 08 = 8/16 or 1/2 inch.• The letter B indicates European Standard.• The suffix “2” indicates the number of strands in thechain, in this case a double-strand chain.American StandardAmerican standard chains are covered by ISO 606, ANSIB29.1, and DIN 8188. Eight versions are covered.• Single-Strand• Double-Strand• Triple-Strand• Multiple-Strand (4-, 5-, 6-, 8-, and 10-strand)The pitch sizes covered by this standard are 1/4 to 3 inchpitch.American standard chains have a smaller pin diameterthan their European standard equivalent. Wear resistanceis therefore reduced when compared with Europeanstandard chains, with one exception, 5/8-inch pitch. In thiscase the pin and bushing diameter is larger in Americanstandard chain.American standard chains are normally referred to underthe ANSI standard numbering system, for example, a 1/2-inch pitch double-strand chain would be ANSI 40-2.The ANSI numbering system works as follows:• The first number is the pitch size in 1/8ths of an inch,i.e., 4/8 = 1/2-inch pitch.• The second number indicates that the chain is a rollerchain (0 = roller chain). A “5” instead of a “0” indicates arollerless chain.• The suffix, as with European standard chain, refersto the number of strands in the chain, i.e., 2 = doublestrandchain.ANSI chain is also available in heavy-duty options withthicker plates (H) and through-hardened pins (V). An ANSIheavy-duty chain would be specified using these suffixes:i.e. ANSI 140-2HV Double-strand, thick plates,through hardened pinANSI 80H Single-strand, thick platesRange of ApplicationThe roller chain market worldwide is divided between thesetwo chain standards, based on the economic and historicalinfluences within their regions.• American standard chain is used primarily in the USA,Canada, Australia, Japan, and some Asiatic countries.• European standard chains dominate in Europe, theBritish Commonwealth, Africa, and Asian countries with astrong British historical involvement.In Europe, approximately 85 percent of the total marketuses European standard chain. The remaining 15 percentare American standard chains found on:• Machinery imported from countries where Americanstandard chain dominates.• Machinery manufactured in Europe under license fromAmerican-dominated markets.Chain Not Conforming to ISO StandardsThere are also Renold Jeffrey manufacturing standards forspecial or engineered chain, which can be categorized asfollows:1. HIGHER BREAKING-LOAD CHAIN – This chain usuallyhas plates that undergo a special treatment, has thickerside plate material and/or pin diameters that slightlydeviate from the standards.2. SPECIAL DIMENSIONS – Some chains can be a mixtureof American and European standard dimensions or haveinner widths and roller diameters that vary, such as inmotorcycle chains.3. APPLICATIONAL NEEDS – Special or engineered chainis manufactured for specific applications, examplesbeing:• Stainless steel chain• Zinc- or nickel-plated chain• Chain with plastic lubricating bushings• Chains with hollow bearing pins• Chain that can bend sideways, (Sidebow chain)In applications requiring a special or engineered chain,contact our technical sales staff for more information.102www.renoldjeffrey.com • advancing chain technology


Roller Chain TypesDesign GuideStandards Reference GuideISO ANSI OTHERShort Pitch Roller Chain and Sprockets 606 B29.1M DIN8187DIN8188Engineering9Short Pitch Rollerless Chains and Sprockets 1395 — DIN8154Double Pitch Roller Chain and Sprockets 1275 B29.3M DIN8181Oilfield Chain and Sprockets 606 B29.1M API Spec 7FCycle Chains 9633 — —Motorcycle Chains 10190 — —Offset Link Chain and Sprockets 3512 B29.1M DIN8182Lifting Chain TypesISO ANSI OTHERLeaf Chain, Clevises, and Sheaves 4347 B29.8M DIN8152Roller Load Chains for Overhead Hoists — B29.24M —www.renoldjeffrey.com • advancing chain technology 103


Engineering9Design GuideAdvantages of Chain DrivesSteel transmission roller chain is made to close toleranceswith excellent joint articulation, permitting a smooth, efficientflow of power. Any friction between the chain rollers andsprocket teeth is virtually eliminated because the rollersrotate on the outside of the bushings, independent of bearingpin articulation inside the bushing. As a result, very littleenergy is wasted. Tests have shown chain to have anefficiency of between 98.4 and 98.9 percent.This high level of efficiency, achieved by a standard stockchain drive under the correct conditions of lubrication andinstallation, is equaled only by gears of the highest standard,with teeth ground to very close tolerances.Roller chain offers a positive, non-slip, driving medium.It provides an accurate pitch-by-pitch positive drive, whichis essential on synchronized drives, such as those toautomobile and marine camshafts, and packaging andprinting machinery. Under conditions of high speed andpeak load when efficiency is also required, roller chain hasproved consistently quiet and reliable.Center distances between shafts can range from about twoinches (50mm) to more than 29 feet (9 meters) in a verycompact installation envelope. Drives can be engineeredso that the sprocket teeth just clear each other or so thatthe chain traverses a considerable span. In this latercategory, double pitch chain comes into its own.Roller chain has a certain degree of inherent elasticity,and this, plus the cushioning effect of an oil film in thechain joints, provides good shock absorbing properties. Inaddition, the load distribution between a chain and sprockettakes place over a number of teeth, which assists in reducingwear. When, after lengthy service, it becomes necessary toreplace a chain, the procedure is simple and does notnormally entail sprocket or bearing removal.Roller chain minimizes loads on the drive motor and drivenshaft bearings since no pre-load is required to tension thechain in the static condition.One chain can drive several shafts simultaneously and inalmost any configuration of center distance or layout. Itsadaptability is not limited to driving one or more shaftsfrom a common drive point. It can be used for a widevariety of devices, including reciprocation, racks, cammotions, internal or external gearing, counterbalancing,hoisting, or weight suspension. Segmental tooth or“necklace” chain sprocket rims can be fitted to largediameter drums.Since there are no elastomeric components involved, chainis tolerant of a wide variety of environmental conditions,including extremes of temperature. Chain is usedsuccessfully in such harsh environments as chemicalprocessing, mining, baking, rock drilling, and woodprocessing. Special coatings can easily be applied forfurther enhancement.Roller chain can also be fitted with link plate attachments,extended bearing pins, etc., which allow it to be used formechanical handling equipment and the operation ofmechanisms. These attachments are detailed in this catalog.Roller chain drives are available for ratios up to 9:1 andto transmit up to 697 hp at 550 rpm. Beyond this, fourmatched strands of triple-strand chain can achieve 4,288hp at 300 rpm.Roller chain does not deteriorate with the passage of time;the only evidence of age being elongation due to wear,which normally is gradual and can be accommodatedby center distance adjustment or by an adjustable idlersprocket. Provided that a chain drive is selected correctlyand properly installed and maintained, a life of 15,000hours can be expected without chain failure from eitherfatigue or wear. Where complete reliability and long lifeare essential, chains can be selected on their assuredperformance for applications such as hoists for controlrods in nuclear reactors and control systems for aircraft.Chain is a highly standardized product available inaccordance with ISO Standards all over the world. It isalso totally recyclable and causes no harmful effects tothe environment.Shown below is a simple table comparing the merits ofdifferent transmission/lifting media.Summary of AdvantagesFEATURES GEARS ROPE BELT CHAINEfficiency A X B APositive drive A X B ACenter distance C A B AElasticity C A A BWear resistance A C B ANo pre-load A C C AMultiple drives C X C AHeat resistant B B C AChemical resistant B A C AOil resistant A A C AAdaptations C B C APower range A X B AEase of maintenance C B B AStandardized C B B AEnvironment A A C AA = ExcellentB = GoodC = PoorX = Not appropriate104www.renoldjeffrey.com • advancing chain technology


Chain SelectionThe notes given below are general recommendations andshould be followed in the selection and installation of achain drive, in order that satisfactory performance anddrive life may be ensured.Chain PitchThe Quick Selector Chart (page 118) gives the alternativesizes of chains that may be used to transmit a load at agiven speed. The smallest pitch of a single-strand chainshould be used, as this normally results in the mosteconomical drive. If the single-strand chain does not satisfythe requirements dictated by space limitations, high speed,quietness, or smoothness of running, then consider asmaller pitch of double-strand or triple-strand chain.When the power requirement at a given speed is beyondthe capacity of a single strand of chain, then the use ofmulti-strand drives permits higher powers to be transmitted.These drives can also be made up from multiples ofmatched single-, double-, or triple-strand ISO chains, orin the case of ANSI chain, multi-strand chain of up to 10strands are available.Please consult our technical staff for further information.Maximum Operating SpeedsFor normal industrial drives, experience has establisheda maximum sprocket speed for each pitch of chain. Thesespeeds, which relate to driver sprockets having 17 to 25teeth inclusive, are given in the graph below; they areapplicable only if the method of lubrication provided isin line with recommendations.Polygonal EffectFour important advantages of a chain drive are dependentdirectly upon the number of teeth in the driver sprocket.The advantages are smooth uniform flow of power,quietness of operation, high efficiency, and long life; thereason for their dependence being that chain forms apolygon on the sprocket. Thus, when the sprocket speedis constant, the chainspeed (due to the manysidedshape of its pathMaximum Operating Speeds6000around the teeth) is5000subject to a regular4000cyclic variation. This3000cyclic variation becomes2000less marked as the1000path of the chain tends010 20 30 40 50 60 70 80towards a true circleChain Pitch (mm)and, in fact, becomesSpeed (rpm)Design Guideinsignificant for most applications as the number of teethin the driver sprocket exceeds 19.The effect of this cyclic variation can be shown in theextreme case of a driver sprocket with the absoluteminimum number of teeth, i.e. three. In this instance, foreach revolution of the sprocket, the chain is subjected toa three-phase cycle; each phase being associated withthe engagement of a single tooth. As the tooth comes intoengagement, for a sixth of a revolution the effective distance,or driving radius, from the sprocket center to the chain isgradually doubled; for the remaining sixth of a revolution,it falls back to its originalposition. Thus, as the linearspeed of the chain isdirectly related to theeffective driving radius ofthe driver sprocket, thechain speed fluctuates by50 percent six times duringeach revolution of the driversprocket.As the graph below shows, the percentage of cyclicspeed variation decreases rapidly as more teeth areadded. With a driver sprocket of 19 teeth, therefore, thiscyclic speed variation is negligible; hence we recommendthat driver sprockets used in normal application drivesrunning at medium to maximum speeds should not haveless than 19 teeth.There are, however, applications where space saving is avital design requirement and the speed/power conditionsare such that the smaller numbers of teeth (i.e., less than 17)give acceptableperformance, so that a50compact, satisfactory4030drive is achieved, i.e.,20office machinery, hand10operated drives,05 10 15 20 25 mechanisms, etc.Cyclic Speed Variation %No. of TeethThe limiting conditions with steady loading for using smallnumbers of teeth are:Number Percentage of Percentage ofof Maximum Rated Maximum RatedTeeth Speed Power11 20 3013 30 4015 50 6017 80 90Engineering9www.renoldjeffrey.com • advancing chain technology 105


Engineering9Design GuideSprocket and Chain CompatibilityMost drives have an even number of chain pitches and,by using a driver sprocket with an odd number of teeth,uniform wear distribution over both chain and sprocketteeth is ensured. Even numbers of teeth for both the driverand driven sprockets can be used, but wear distributionon both the sprocket teeth and the chain is poor.Number of TeethThe maximum number of teeth in any driven sprocket shouldnot exceed 114. This limitation is due to the fact that for agiven elongation of chain due to wear, the working pitchdiameter of the chain on the sprocket increases in relationto the nominal pitch diameter, i.e., the chain assumes ahigher position on the sprocket tooth. The allowable safechain wear is considered to be in the order of 2 percentelongation over nominal length.A simple formula for determining how much chainelongation a sprocket can accommodate is200Nexpressed as a percentage where N is the number of teethon the largest sprocket in the drive system.It is good practice to have the sum of teeth not less than50, where both the driver and driven sprockets are operatedby the same chain, i.e., on a 1:1 ratio drive, both sprocketsshould have 25 teeth each.Center DistanceFor optimum wear life, center distance between twosprockets should normally be within the range 30 to 50times the chain pitch. On drive proposals with centerdistances of less than 30 pitches or greater than 6.6 feet(2 m), discuss the drive details with our technical staff.The minimum center distanceis sometimes governed by theamount of chain lap on thedriver sprocket. Our normalrecommendation in thiscircumstance is not less than6 teeth in engagement with thechain.Minimum 6 TeethThe center distance is also governed by the desirability ofusing a chain with an even number of pitches to avoid theuse of an offset link, a practice that is not recommendedexcept in special circumstances.For a drive in the horizontal plane, the shortest center distancepossible should be used consonant with recommendedchain lap on the driver sprocket.Recommended center distances for drives are:Pitch inch 3/8 1/2 5/8 3/4 1 1-1/4mm 9.525 12.70 15.87 19.05 25.40 31.75Center inch 17.715 23.622 29.528 35.433 39.370 47.244Distance mm 450 600 750 900 1000 1200Pitch inch 1-1/2 1-3/4 2 2-1/2 3mm 38.10 44.45 50.80 63.50 76.20Center inch 53.150 59.055 66.929 70.866 78.740Distance mm 1350 1500 1700 1800 2000Lie of DriveDrives may be arranged to run horizontally, inclined, orvertically. In general, the loaded strand of the chain maybe uppermost or lowermost, as desired. Where the lie ofthe drive is vertical, or nearly so, it is preferable for thedriver sprocket to be above the driven sprocket; however,even with a drive of vertical lie, it is quite feasible for thedriver sprocket to be lowermost, provided care is takenthat correct chain adjustment is maintained at all times.CENTERSThe center distancebetween the axis oftwo shafts or sprocketsANGLEThe lie of the driveis given by the angleformed by the linethrough the shaftcenters and ahorizontal lineROTATIONViewed along theaxis of the drivenshaft, the rotationcan be clockwiseor anti-clockwiseZ1CZ2Z2CJZ1106www.renoldjeffrey.com • advancing chain technology


Drive LayoutOne chain can be used to drive a number of shafts anddue to the ability of roller chains to gear on either face,individual shafts in the same drive can be made to rotatein the same or opposite directions by arranging the drivensprockets to gear in different faces of the chain. Thenumber of driven sprockets permissible in any one drivedepends on the layout.A selection of possible drive layouts is shown below.DRIVES WITH VARIABLE SHAFT POSITIONSZ2Z2Z1Design GuideMULTI-SHAFT DRIVESThe permissible number of driven shafts will varyaccording to drive characteristics.Five sprockets coupled by four simple drives:Z2 Z2 Z1 Z2 Z2The efficiency of a single-stage drive is approximately98%. However, if a series of drives are interconnected(as in live roller conveyors), the overall efficiency willvary with the number of drives involved. It is necessaryin applications of this nature to increase the calculatedmotor power to allow for this reduced efficiency.4 drives overall efficiency = 94%8 drives overall efficiency = 87%12 drives overall efficiency = 80%Eight shafts rotated by a single chain with high efficiencybut reduced tooth contact:Engineering9Z1JJFloating countershaft and floating idlerCHAIN LAP - Recommended 120°. Minimum of 90°permissible for sprockets of 27 teeth or more.CENTERS - Pitch of chain multiplied by 30 to 50.Z1JThe idler is used to ensure adequate chain lap on thedriven sprockets.DRIVES WITH ABNORMALLY LONG CENTERSCould incorporate countershafts:HORIZONTAL DRIVESTwo shafts vertically mounted:Z1Z2Or supporting idlers:JZ2Z1PlanZ1For slow and medium chain speed applications upto 492 feet per minute.Or supporting guides:JZ2Z2When centers are long, use guide strips to supportchain strands with generous “lead-in” to ensuresmooth entry and exit of chain.Three shafts vertically mounted:Z1For applications where countershaftsor supporting idlers cannot be employedand where the chain speed does notexceed 197 feet per minute.Z2CHAIN LAP - Recommended 120°. Minimum of90° permissible for sprockets of 27 teeth or more.CENTERS - Shortest possibleZ1Z2Planwww.renoldjeffrey.com • advancing chain technology 107


Engineering9Design GuideQuick Selector Chart ConstructionThe Quick Selector Chart (page 118) may appearcomplicated at first glance, however, it is constructed fromthree simple lines. At lower speeds, the failure mode islikely to be plate fatigue if the maximum powerrecommendation is exceeded. However, pin galling willoccur due to boundary lubrication break-down at very highspeeds. At the intersection of these lines, the bush androller fatigue curve comes into play and accounts for therounded tops to each of the selection curves.Bearing PressuresWhen a chain has been correctly selected, the mode of failureover a very long period of time is most likely to be wear.The subject of wear, which depends on many factors, hasbeen addressed earlier in this guide. However, a very usefulindicator of chain performance is the magnitude of pressurebetween the key mating surfaces (i.e., pin and bush).This pressure is known as the bearing pressure and isobtained by dividing the working load by the bearing area.Bearing areas for standard chains are quoted in thedesigner data at the end of this guide.RATING CHART CONSTRUCTIONBush & RollerfatigueThe following table gives an indication of the implicationsof various bearing pressures but should not be usedwithout reference to the other chain selection methodsgiven in this guide.POWERLink Plate FatiguePin GallingSPEED2BEARING PRESSURE (Lbs/in )12,0009,0006,0003,000SINGLE-STRANDMULTI-STRANDSINGLE-STRANDMULTI-STRANDContact Renold JeffreyReduced lifeGood lifeexpectancySINGLE-STRANDMULTI-STRANDSLOW MEDIUM HIGHCHAIN VELOCITY (Ft/min)Slow velocity up to 60% of maximum allowable speedMedium velocity 60 to 80% of maximum allowable speedHigh velocity more than 80% of maximum allowable speedNote: There is some variation between chains. The abovefigures should be used as a guide only.108www.renoldjeffrey.com • advancing chain technology


Lifting ApplicationsThis section covers applications such as lifting and moving,where the loads involved are generally static. Obviously,dynamic loads are also involved in most applications andthe designer needs to take due consideration of these. Themachinery designer should also refer to DTI PublicationINDY J1898 40M, which summarizes legislation in placefrom January 1, 1993 and January 1, 1995 regardingmachinery product standards.Chain for lifting applications falls into two main categories:• Leaf Chain• Bush/Roller ChainApplicationsDesign GuideEngineering9Leaf ChainLeaf chain is generally used for load-balancing liftingapplications as illustrated below. They must be anchoredat either end since there is no means of gearedengagement in the chain itself.1. Machine Tools - Planers,Drills, Milling Heads,Machine Centers.2. Fork Lift Trucks, Lifts,Hoists.Safety FactorsA safety factor of 7:1 is normal for steady-duty reciprocatingmotion, i.e., fork lift trucks. For medium shock loads, theratio is 9:1 and for heavy shock loads, 11:1.Operating SpeedApplications should not exceed a maximum chain speed of98 feet/min (30 meters/min).3. Counterweight Balances -Jacks, Doors, Gates, etc.www.renoldjeffrey.com • advancing chain technology 109


Engineering9Design GuideRoller and Rollerless ChainsRoller and rollerless chains can be used for lifting andmoving purposes and have the advantage over leaf chainin that they may be geared into a suitable driving sprocket.Roller chain has a better wear resistance than leaf chainand may be used at higher speeds.Safety FactorsApplications vary widely in the nature of loads applied,therefore, apply safety factors to allow for some degree ofabuse.A factor of safety of 8:1 in non-passenger applicationsA factor of safety of 10:1 in passenger applicationsLower factors of safety than these may be used (exceptfor passenger applications), when careful considerationof the maximum loads and health and safety implicationshave been made. See the section “Influences on ChainLife” below.Operating SpeedsApplications should not normally exceed a maximum chainspeed of 148 feet/min (45 meters/min). For higher speeds,consider selection as if the chain were in a power driveapplication converting the chain load to horsepower usingthe following formula:POWER (HP) = FV33,000Where: F = Lbs.V = Ft./min.Then apply service factors as shown in Step 2 of DriveChain Selection on page 115.Calculate equivalent RPM by using the smallest sprocket inthe system and the following formula:SPEED = 12VPZWhere: P = Chain pitch (in.)Z = No of teeth in small sprocketV = Ft./min.Select lubrication methods.ANSI H and HV SeriesDrive chain is also available in heavy-duty versions of theANSI standard range of chain.These chains are suitable where frequent load reversalsare involved. Typical applications are in primary industriessuch as mining, quarrying, rock drilling, forestry, andconstruction machinery.In order to accommodate these higher fatigue-inducingloads, material for inner and outer plates is increased inthickness by approximately 20 percent.This modification does not improve the tensile strengthsince the pin then becomes the weakest component.However, heavy-duty chains with higher tensile strength areavailable. These chains feature through-hardened insteadof case-hardened pins, however, wear performance isreduced due to the lower pin hardness.Renold ANSI H and HV chains are available as follows:H Series - Thicker platesHV Series - Thicker plates and through-hardened pinsThe H and HV chains are not suitable for high-speeddrive applications.It should also be noted that single-strand chains of standard,H, or HV designs all have identical gearing dimensions andtherefore can operate on the same sprockets as standardchains. The thicker plates require a larger chain track, andit may be desirable to use sprockets with heat-treated teeth.Multi-strand chain requires an increased transverse pitch ofthe teeth but other gearing dimensions are the same.Influences on Chain LifeFactors of SafetyAll Renold Chain is specified by its minimum tensilestrength. To obtain a design working load it is necessaryto apply a “FACTOR OF SAFETY” to the breaking load.However, before considering this, the following pointsshould be noted:• Most chain side plates are manufactured from low- tomedium-carbon steel and are sized to ensure they haveadequate strength and ductility to resist shock loading.• These steels have yield strengths of approximately65 percent of their ultimate tensile strength. This meansthat if chains are subjected to loads of greater than this,depending upon the material used in the side plates,then permanent pitch extension will occur.• Most applications are subjected to intermittent dynamicloads well in excess of the maximum static load andusually greater than the designer’s estimate.• Motors, for example, are capable of up to 200 percentfull load torque output for a short period.As a result, chain confidently selected with a factor ofsafety of 8:1 on breaking load is, in effect, operating witha factor of safety of around 5:1 on yield and much lessthan this when the instantaneous overload on the drive isconsidered.110www.renoldjeffrey.com • advancing chain technology


Safety FactorsAxial breaking force/max working load121110987654321Harsh EnvironmentsPassenger LiftsTransmissionHigh-Cycle LiftingLow-Cycle LiftingNot Normally UsedA further consideration when applying a factor of safetyto a chain application is the required chain life.In a properly maintained application, normal service lifeis expected to be 8,000,000 cycles or 15,000 hours,whichever comes first. Wear will be the usual mode offailure.In applications where low factors of safety are required,the service life will be reduced accordingly.The maximum working load is obtained by dividing thechain minimum tensile strength by the factor of safety.The table below gives a rough indication of life for variousfactors of safety.FactorCyclesType ofSingle-strand Multi-strand Maximum Application5.0 6.0 1,000,000 Dynamic load6.0 7.2 2,000,000 does not exceedworking loadSafety CriticalDesign GuideImportant NoteFor factors of 5:1, the resulting bearing pressure is 50percent higher than recommended. Chain working underthese conditions will wear prematurely, despite the type oflubrication regime used.Harsh EnvironmentsIn anything other than a clean and well-lubricatedenvironment, the factor of safety should be adjusted ifsome detriment to the working life of the chain is to beavoided. Low temperatures will also decrease workinglife, especially if shock loads are involved.The following tables give a general guide to the appropriatesafety factors for different applications for a target life of8,000,000 cycles.CleanlinessLubrication Clean Moderately Clean Dirty/AbrasiveRegular 8 10 12Occasional 10 12 14None 12 12 14Temperature (ºF)Lubrication +50 to 300 300 to 390 390 to 570Regular 8 10 12Occasional 10 12 14None 12 12 14TemperatureLoad Regime(ºF) Smooth Moderate Shocks Heavy Shocks+50 to 300 8 11 1532 to 50 10 15 19-5 to 32 12 20 25-40 to –5 15 25 33Chain ExtensionWhen designing lifting applications, it can be useful toknow how much a chain will extend under a given load.The approximate elongation of a chain under a given loadcan be measured by using the following formulas.8.0 8.0 8,000,000 Dynamic loadscan occasionallyexceed workingload by 20%• Single-strand Chain(1.00) .10L =10.0 10.0 8,000,000 All passenger lifts p 2-6 .L.F 1Engineering9It should be noted that at factors below 8:1, bearingpressures increase above the maximum recommended. Asa result, increased wear will arise unless special attention istaken with lubrication, i.e.:• More frequent lubrication• Higher-performance lubricants• Better methods of applying lubrication• Double-strand Chain L =• Triple-strand ChainL =(6.70).10pWhere:L = Change in chain length (in.)L = Original length of the chain (in.)P = Pitch of the chain (in.)F 1= Average load in the chain (lbs.)-7.L2(5.00) .10p 2-7.L.F 1.F 1www.renoldjeffrey.com • advancing chain technology 111


Engineering9Design GuideMatching of ChainAny application in which two or more strands of drive chainare required to operate side by side in a common drive orconveying arrangement may involve the need for eitherpairing or matching. Such applications generally fall intoone of the following categories :Length Matching for Conveying and Similar ApplicationsWhen length matching of drive chain is necessary, it isdealt with as follows:• The chains are accurately measured in handling lengthsbetween 10 ft. and 27 ft. (3m to 8m), as appropriate, andthen selected to provide a two-or-more-strand drivehaving overall length uniformity within close limits. Suchlength uniformity will not necessarily apply to anyintermediate sections along the chains, although actuallength of all intermediate sections, both along and acrossthe drive, will not vary more than our normal manufacturinglimits. However, adapted drive chains are usuallymanufactured to specific orders which are generallycompleted in one production run, so it is reasonable toassume that length differences of intermediate sectionswill be small.• Chains are supplied in sets that are uniform in overalllength within reasonably fine limits and will be within ournormal manufacturing limits. It should be noted thatchain sets supplied for different orders at different timesmay not have exactly the same lengths to those suppliedoriginally, but will vary by no more than our normaltolerance of 0.0%, +0.15 percent.Pitch Matching Drive ChainsPitch-matched chains are built from shorter subsections(usually about 1 to 3 feet or 300 to 600mm lengths), whichare first measured and then graded for length. Allsubsections in each grade are of closely similar length andthose forming any one group across the set of chains areselected from the same length grade.The requisite number of groups are then connected toform a pitch-matched set of chains, or alternatively, if this istoo long for convenient handling, a set of handling sectionsfor the customer to assemble as a final set of pitch-matchedchain. Suitable tags are fixed to the chains to ensure theyare connected together in the correct sequence.Identification of Handling LengthsHandling Handling HandlingLength 1 Length 2 Length 3A Strand A-A1 A1-A2 A2-A3B Strand B-B1 B1-B2 B2-B3C Strand C-C1 C1-C2 C2-C3Long chains are made in sections, each section beingnumbered on end links. Sections should be joined so thatend links with similar numbers are connected. When chainsare to run in sets of two or more strands, each strand isstamped on end links of each section with a letter, inaddition to being numbered. Correct consecutive sectionsfor each strand must be identified from the end links andjoined up as indicated.By these means, the actual length of any intermediateportion of one strand (as measured from any one pitchpoint to any other) will correspond closely with that of thetransversely equivalent portion on the other strands, generallywithin 0.002 inches (0.05mm), depending on the chainpitch size.Pitch Matching Attachment Chains(when attachments are fit to chains)With the sole exception of extended bearing pins, it is notpossible to match the pitch of holes in attachmentsthemselves to within very fine limits. This is due to theadditional tolerances that arise with bending, holing, etc.Color CodingFor customers who wish to match their chains, perhaps inorder to fit special attachments, Renold color codes shortlengths of chain within specified tolerance bands. Thesewill normally be RED, YELLOW, or GREEN paint marks toindicate lower, middle, and upper thirds of the toleranceband. For even finer tolerance bands, additional colors canbe used, but normally a maximum of five colors is morethan adequate.ColorToleranceRED 0.05%YELLOW 0.10%GREEN 0.15%BLUEFor finerWHITEtolerancesTo Measure Chain WearA direct measure of chain wear is the extension in excessof the nominal length of the chain. Chain wear cantherefore be ascertained by length measurement in linewith the instructions given below.• Lay the chain, which should terminate at both ends withan inner link, on a flat surface, and, after anchoring it atone end, attach to the other end a turnbuckle and aspring balance suitably anchored.• Apply a tension load by means of the turnbuckleamounting to:Single-Strand Chain (25.4 x P) 2 x .173 lbsDouble-Strand Chain (25.4 x P) 2 x .351 lbsTriple-Strand Chain (25.4 x P) 2 x .524 lbsWhere P is the pitch in inches.112www.renoldjeffrey.com • advancing chain technology


In the case of double-pitch chains (i.e., chains having thesame breaking load and twice the pitch), apply measuringloads as for the equivalent short-pitch chains.As an alternative, the chain may be hung vertically and theequivalent weight attached to the lower end.• Measure length ‘M’ (see diagram above) in inches fromwhich the percentage extension can be obtained fromthe following formula:Percentage Extension = M - (N x P) x 100N x PWhere N = Number of pitches measuredP = Pitch• As a general rule, the useful life of a chain is terminatedand the chain should be replaced when extensionreaches 2 percent (1 percent in the case of doublepitchchains). For drives with no provision for adjustment,the rejection limit is lower, dependent upon the speedand layout. A usual figure is between 0.7 and 1.0percent extension.Chain Wear GuideA simple-to-use chain wear guide is available fromRenold Jeffrey for most popular sizes of chain pitch.Please contact your sales office for details.Repair and ReplacementSprocketsExamination of both flanks will give an indication of theamount of wear that has occurred. Under normalcircumstances, this will be evident as a polished wornstrip around the pitch circle diameter of the sprocket tooth.If the depth of this wear “X” has reached an amount equalto 10 percent of the “Y” dimension, steps should be takento replace the sprocket. Running new chain on sprocketshaving this amount of tooth wear will cause rapid chain wear.X =PCDY10YMDepthof wearXIt should be noted that in normal operating conditions, withcorrect lubrication the amount of wear “X” will not occuruntil several chains have been used.PCDDesign GuideChainChain repair should not be necessary. A correctly selectedand maintained chain should gradually wear out over aperiod of time (approximately 15,000 hours), but it shouldnot fail. Please refer to the Installation and Maintenancesection of this catalog, which gives an indication of howto determine the service life remaining.If a drive chain sustains damage due to an overload,jam-up, or by riding over the sprocket teeth, it should becarefully removed from the drive and given a thoroughvisual examination. Remove the lubricating grease and oilto make the job easier.Depending on the damage, it may be practical to effecttemporary repairs using replacement links. It is not,however, a guarantee that the chain has not been overstressedand so made vulnerable to a future failure. Thebest policy, therefore, is to remove the source of troubleand fit a new chain. This should be done for the followingreasons.1. The cost of downtime to the system or machine canoften outweigh the cost of replacing the chain.2. A new or used portion of chain or joints assembled intothe failed chain will cause whipping and load pulsation.This will likely produce rapid failure of the chain and willaccelerate wear in both the chain and its sprockets.If a chain has failed two or more times, it is certain thechain will fail again in time. If no replacement is immediatelyavailable, repair the chain, but replace it at the earliestopportunity.Chain AdjustmentTo obtain full chain life, some form of chain adjustmentmust be provided, preferably by moving one of the shafts.If shaft movement is not possible, an adjustable idlersprocket engaging with the unloaded strand of the chain isrecommended. Generally the idler should have the samenumber of teeth as the driver sprocket and care should betaken to ensure the speed does not exceed the maximumshown in the Quick Selector Chart (see page 118).The chain should be adjusted regularly so that, with onestrand tight, the slack strand can be moved a distance“A” at the midpoint (see diagram below). To cater for anyeccentricities of mounting, the adjustment of the chainshould be tried through a complete revolution of the largesprocket.A = Total movementC = Horizontal center distanceTotal movement “A” (in.) = C (in.)KWhere K = 25 for smooth drives50 for shock drivesFor vertical drives please consult the Installation andMaintenance section of this catalog, which gives moredetails on chain adjustment.Engineering9www.renoldjeffrey.com • advancing chain technology 113


Engineering9Chain SelectionSECTION114www.renoldjeffrey.com • advancing chain technology


Drive Chain Selection andEngineering InformationRequired information for drive selection:1. Type of input power (electric motor, internal combustionengine, etc.).2. Type of equipment to be driven.3. Horsepower (HP) to be transmitted.4. Full load speed of the fastest running shaft (RPM).5. Desired speed of the slow-running shaft. NOTE: If thespeeds are variable, determine the horsepower to betransmitted at each speed.6. Diameters of the driver and driven shafts.7. Center distance of the shafts.NOTE: If this distance is adjustable, determine theamount of adjustment.8. Position of drive and space limitations (if any).9. Conditions of the drive. Drives with more than twosprockets, idlers, or unusual conditions such as severelyabrasive or corrosive environments, severely high or lowtemperatures, widely fluctuating loads, frequent startsand stops, etc., require special attention. It is advisableto consult with Renold Jeffrey engineering personnel inthese situations.Abbreviations:N Number of teeth on large sprocketn Number of teeth on small sprocketR RPM of large sprocketr RPM of small sprocketC Shaft center distance in chain pitchesHP Horsepower of drive motorStep 1: Determine the Class of Driven Load.From the Application Classifications chart on page 117,determine the class of driven load to be uniform, moderate,or heavy shock.Step 2: Determine the Service Factor.From Table 1, determine the service factor for theapplication under consideration.Table 1: Service FactorsClass of DrivenLoadDrive Chain SelectionInternalCombustionEngine withHydraulic DriveType of Input PowerElectric Motoror TurbineInternalCombustionEngine withMechanicalDriveUniform 1 1 1.2Moderate 1.2 1.3 1.4Heavy 1.4 1.5 1.7Step 3: Calculate the Design Horsepower.Design Horsepower = HP x Service FactorThe design horsepower equals the horsepower to betransmitted times the service factor found in Table 1.Step 4: Select the Chain Pitch.From the Quick Selector Chart on page 118, make atentative chain selection as follows:a)Locate the design horsepower calculated in Step 3on the vertical axis by reading up the strand columns(single, double, etc.) in order until the design horsepoweris located. The number of strands indicated at the top ofthe column in which the design horsepower is FIRSTlocated is usually the recommended chain selection.NOTE: Using the fewest number of chain strands willusually result in the most economical selection.b)Locate the RPM of the small sprocket on the horizontalaxis of the chart.c)The intersection of the two lines (design horsepower andsmall sprocket RPM) will be in an area designated withthe recommended chain pitch. If the intersection is nearthe borderline of the designated pitch area, the chainson both sides of the borderline should be evaluated toassure the best overall selection.Engineering9www.renoldjeffrey.com • advancing chain technology 115


Drive Chain SelectionStep 5: Select the Number of Teeth on the small sprocket.The minimum number of teeth are found in the horsepowertables on pages 6-19. To determine, first calculate theHorsepower Table Rating (HP Table) from the followingEngineering9 formula:HP Table = Design HP (Step 3)Multiple Strand Factor (Table 2)Horsepower Table Ratings are given for each chain size onpages 6-19. Turn to the appropriate page from the tentativeselection found in Step 4 and choose the number of teethfor the small sprocket using the following method:a)Determine the Horsepower Table Rating from the aboveformula.b)Read down the column in the horsepower table under theRPM of the small sprocket until the required HorsepowerTable Rating is located. Read across the table to the firstcolumn (No. of Teeth Small Sprocket). This is theminimum number of teeth to specify for this application.Note the lubrication method specified in the horsepowertable for the selected chain. This lubrication methodshould be used in order to achieve reasonable servicelife.Table 2: Multiple Strand FactorsNo. ofStrands1 2 3 4 5 6Factor 1 1.7 2.5 3.3 3.9 4.6Step 6: Determine the Number of Teethon the large sprocket.N = (r x n)/RStep 8: Check the Final Design.Use the checklist found on page 119 (Table 4) to assure thebest balance of drive life, performance, and cost.Step 9: Calculate the Chain Length.Chain Length in Pitches = [(N + n)/2] + (2C) + (K/C)To determine “K”, subtract the number of teeth on the smallsprocket from the number of teeth on the large sprocket.Consult Table 5 on page 120. Note that “C” is in chainpitches, thus:C = Center Distance (inches)/Chain Pitch (inches)The required chain length in feet (L) may be obtained from:L = (Chain Length in Pitches x Chain Pitch in Inches)/12Slow Speed SelectionIf the linear chain speed is less than 160 ft./min., then achain that is one size smaller than selected with the abovemethod may be used. To verify, check to see if thecalculated chain tension (T) is less than the “Rated WorkingLoad” of the chain. “Rated Working Load” values areobtained in the specification tables found on pages 6-19.Use the following formula to calculate T:S = (Chain Pitch x n x r)/12T = [(HP x 33,000)/S] x F (Table 3)Table 3: Speed FactorChain Speed (ft./min.)Factor (F)0 - 50 150 - 100 1.2100 - 160 1.4The number of teeth on the large sprocket equals the RPMof the small sprocket times the number of teeth on the smallsprocket divided by the RPM of the large sprocket. NOTE:For sprockets with less than 24 teeth, speeds over 600RPM, ratios greater than 4:, heavy loading, or corrosiveenvironments; the use of hardened-tooth sprockets isrecommended.Step 7: Determine the Recommended MinimumCenter DistanceC = (2N + n)/6This formula is to be used as a guide for the MINIMUMcenter distance only. The final selection may vary due to:1. Required clearance dimensions2. Allowing the final chain length to be an even number ofpitches. NOTE: An odd number of pitches requires anoffset link, which should be avoided if possible.116www.renoldjeffrey.com • advancing chain technology


Application ClassificationsAgitatorspure liquidsUElevators (continued)escalatorsUliquids and solids M freightMliquids—variable density M gravity discharge UBlowersman lifts and passenger HCentrifugalU FansLobeM centrifugalUVaneU cooling towersUBrewing and Distillinginduced draftMbottling machinery U large (mine, etc.) Mbrew kettles—cont. duty U large industrialMcookers—cont. duty U small diameterUmash tubs—cont. duty U Feedersscale hopper, freq. starts M apron & beltMCan Filling Machines U discUCane KnivesM reciprocatingHCar DumpersH screwMCar PullersM Food IndustryClarifiersU beet slicerMClassifiersM cereal cookerUClay Working Machinery dough mixerMbrick pressH meat grinderMbriquette machine H Generators—except welding Uclay working machine M Hammer MillsHpug millM HoistsCompressorsheavy dutyHCentrifugalU medium dutyMlobeM skip hoistMreciprocating multi-cyl. M Laundryreciprocating single-cyl. H reversing washers MConveyorstumblersMapronU Line ShaftsassemblyU processing equipment MbeltU light or other line shafts UbucketU Lumber IndustrychainU barkers hydr./mech. MflightU burner conveyor MovenU chain or drag saw HscrewU chain transferHConveyors, Heavy Dutycraneway transfer HapronM de-barking drum HassemblyM edger or gang feeder MbeltM green chainMbucketM live rollsHchainM log deckHflightM log haul—incline or well HovenM log turning device Hlive rollerM main log conveyor HreciprocatingH off bearing rolls MscrewM planer feed chains MshakerH planer floor chains MCranesplaner tilting hoist Mmain hoistsU re-saw conveyor Mbridge travelM roll casesHtrolley travelM slab conveyorHCrusheroreHsmall waste conveyor belt Usmall waste conveyor chain MstoneH sorting tableMsugarM triple hoist drives and conv. MDredgestransfer rolls or conveyor Mcable reels and conveyorsM trimmer feedMcutter heads and jigs H waste conveyor Mmaneuvering winches M Machine ToolspumpsM bearing rollMscreen drivesH punch press gear drives HstackersM notching press belt drives HElevatorsplate planersHbucket—uniform load U tapping machine Hbucket—heavy load M main drivesMbucket—continuous U auxiliary drivesUcentrifugal discharge UMetal Millsdraw benchMcarriage & main drives Mpinch & dryer rolls (rev.) Hscrubber rolls (rev.) HslittersMnon-reverse group drives Mnon-reverse individual drives Hreversing drives Hwire drawing & flattening Mwire winding machine MMills Rotary TypeballMcement linesMdryers and coolers MkilnsMpebblesMrod, plane, & wedge bar Mtumbling barrels HMixersconcrete mixers Mconstant density Uvariable density MOil IndustrychillersMoil well pumping Hparaffin filter press Mrotary kilnsMPaper Millsagitators or mixers MbarkersMbarking drumsHbeater and pulper MbleacherUcalendarsMcalendars—super HcounchMcutters and platers HcylindersMdryersMfelt stretcherMfelt whipperHjordansHlog haulHpressesUpulp machine reel Mstock chestsMsuction rollsUwashers and thickeners MwindersUPrinting Presses UPullersbarge haulHPumpscentrifugalUproportioningMreciprocatingHsingle acting, three ormore cylinders Mdouble acting, two ormore cylinders Msingle acting, one ortwo cylinders Mdouble acting, onecylinderMrotary gear type,vane, or lobeUDrive Chain SelectionRubber and PlasticsIndustriescrackersHlaboratory equipment Mmixing millsHrefinersMrubber calendars Mrubber mill 2 on line Mrubber mill 3 on line UsheetersMtire building machines Mtire and tube press openers Mtubers and strainers Mwarming millsMSand MullerMSewage Disposal Equipmentbar screensUchemical feeders UcollectorsUde-watering screws Mscum breakers Mslow or rapid mixers MthickenersMvacuum filtersMScreensair washingUrotary, stone, or gravel Mtraveling water intake USlab PushersMSteering GearHStokersUSugar Industrycane knivesMcrushersMmillsHTextile IndustrybatchersMcalendarsMcardsMdry cansMdryersMdyeing machines Mknitting machines MloomsMmanglesMnappersMpadsMrange drivesMslashersMsoapersMspinnersMtenter framesMwashersMwindersMNote: Table gives typical valuesonly. Care should be taken toassure these values conform tothe actual application.U: Uniform LoadM: Moderate LoadH: Heavy LoadEngineering9www.renoldjeffrey.com • advancing chain technology 117


Drive Chain SelectionEngineering9Quick Selector Char t118www.renoldjeffrey.com • advancing chain technology


Table 4: Chain Drive ChecklistDrive Chain SelectionItem Item to Check Suggested Alternatives1 Small sprocket (driver sprocket) should have 17 or more teeth. a) Use next smaller chain pitchEngineering92 Large sprocket (driven sprocket) should have less than 120 teeth. a) Use next larger chainb) Use more chain strandsc) Speed ratio too large – divide into two drives3 Speed ratio should be 7:1 or less (optimum) – 10:1 minimum. a) Divide into two drives4 With speed ratios greater than 3:1, the center distance between a) Increase center distanceshafts should not be less than the outside diameter of the large b) Divide into two drivessprocket less the outside diameter of the small sprocket to provide c) Use more chain strandsthe minimum recommended chain wrap of 120 degrees on the d) Use next larger chain pitchsmall sprocket.e) Use next smaller chain pitch (with additional strands)5 Center distance must be greater than 1/2 the sum of the outside a) Increase center distancediameter of both sprockets to prevent interference.b) Use more chain strandsc) Use next larger chain pitchd) Use next smaller chain pitch (with additional strands)6 Selected sprockets must accommodate the specified shafts. a) Select the closest size sprockets which will acceptthe shafts7 Drive should fit into available space. a) Use next larger chain pitchb) Use more chain strandsc) Use next smaller chain pitch (with additional strands)8 Shaft center distance should be less than 80 pitches of chain. a) Install guide or idlers9 Center distance should be equal to or greater than the minimum a) Use next smaller chain pitch (with additional strands)center distances shown in the table below.b) Use more chain strandsChain Pitch (in.) 3/8 1/2 5/8 3/4 1 1-1/4 1-1/2 1-3/4 2 2-1/2 3Min. Center Distance (in.) 6 9 12 15 21 27 33 39 45 57 6610 Center distance should be within the optimum range of a) Use next larger chain pitch30 – 50 pitches. b) Use more chain strandsc) Use next smaller chain pitch (with additional strands)11 The final drive should have adequate capacity to handle the a) Make new selection or contact Renold Jeffrey chainrequired horsepower for the chain pitch as calculated in step 3 engineeringof the Selection Procedure.12 For sprockets with less than 24 teeth, speeds greater than 600 RPM, a) Hardened teeth sprockets are recommendedratios over 4:1, and chains selected by the Slow Speed ChainSelection formula (page 116).www.renoldjeffrey.com • advancing chain technology 119


Engineering9Drive Chain SelectionTable 5: “K” ValuesN–n K N–n K N–n K N–n K N–n K N–n K N–n K N–n K N–n K21 11.17 41 42.58 61 94.25 81 166.19 101 258.39 121 370.86 141 503.59 161 656.59 181 829.8522 12.26 42 44.68 62 97.37 82 170.32 102 263.54 122 377.02 142 510.76 162 664.77 182 839.0423 13.40 43 46.84 63 100.54 83 174.50 103 268.73 123 383.22 143 517.98 163 673.00 183 848.2924 14.59 44 49.04 64 103.75 84 178.73 104 273.97 124 389.48 144 525.25 164 681.28 184 857.5825 15.83 45 51.29 65 107.02 85 183.01 105 279.27 125 395.79 145 532.57 165 689.62 185 866.9326 17.12 46 53.60 66 110.34 86 187.34 106 284.67 126 402.14 146 539.94 166 698.0027 18.47 47 55.95 67 113.71 87 191.73 107 290.01 127 408.55 147 547.36 167 706.4428 19.86 48 58.36 68 117.13 88 196.16 108 295.45 128 415.01 148 554.83 168 714.9229 21.30 49 60.82 69 120.60 89 200.64 109 300.95 129 421.52 149 562.36 169 723.4630 22.80 50 63.33 70 124.12 90 205.18 110 306.50 130 428.08 150 569.93 170 732.0531 24.34 51 65.88 71 127.69 91 209.76 111 312.09 131 434.69 151 577.56 171 740.6832 25.94 52 68.49 72 131.31 92 214.40 112 317.74 132 441.36 152 585.23 172 749.3733 27.58 53 71.15 73 134.99 93 219.08 113 323.44 133 448.07 153 592.96 173 758.1134 29.28 54 73.86 74 138.71 94 223.82 114 329.19 134 454.83 154 600.73 174 766.9035 31.03 55 76.62 75 142.48 95 228.61 115 334.99 135 461.64 155 608.56 175 775.7436 32.83 56 79.44 76 146.31 96 233.44 116 340.84 136 468.51 156 616.44 176 784.6337 34.68 57 82.30 77 150.18 97 238.33 117 346.75 137 475.42 157 624.37 177 793.5738 36.58 58 85.21 78 154.11 98 243.27 118 352.70 138 482.39 158 632.35 178 802.5739 38.53 59 88.17 79 158.09 99 248.26 119 358.70 139 489.41 159 640.38 179 811.6140 40.53 60 91.19 80 162.11 100 253.30 120 364.76 140 496.47 160 648.46 180 820.70120www.renoldjeffrey.com • advancing chain technology


Conveyor ChainSelection andEngineeringInformationSuccessful conveyor chain selectioninvolves an accurate assessment ofconditions on and around the conveyortogether with the performance ofseveral simple calculations. Rollerchains are typically used in relativelylight to moderate material handlingapplications. Special materials,platings, and coatings are availableto handle a wide variety of specialenvironmental conditions, includingextremes in temperatures and/ordifficult corrosive circumstances.Contact Renold Jeffrey engineeringpersonnel for assistance in choosingthe best conveyor chain product foryour application.Required information for conveyorchain selection:1. Type of chain conveyor (slat, pusher,cross bar, etc.).2. The basic layout of the conveyor,including sprocket center distances,angles of incline, etc.3. The type and weight of material tobe conveyed (M lbs/ft).4. An estimate of the required weightof chain, attachments, and othermoving parts of the conveyor(W lbs/ft).5. Chain speed (S ft/min).6. Type of environment the chain willoperate in (i.e., temperature,corrosion, etc.).Make a Preliminary Chain SelectionUse the following formula to estimateconveyor pull.P = Total weight x f x Speed FactorT = P/Number of strandsWhere:P = Conveyor pullTotal Weight = The entire weightof chains, attachments, andmaterial to be conveyedf = Friction coefficient(see Table 6)Speed Factor(see Table 7)Table 6: Friction CoefficientsTable 7: Speed FactorsChain SpeedFactor0 to 50 ft/min 1.051 to 100 ft/min 1.2101 to 150 ft/min 1.4151 to 230 ft/min 1.6231 to 300 ft/min 2.2301 to 350 ft/min 2.8351 to 400 ft/min 3.2Conveyor Chain SelectionStep 1 Step 2Type of Carrier Dry LubricatedStandard Roller 0.21 0.14Carrier Roller 0.12 0.08Top Roller 0.09 0.06Chain Sliding on Steel 0.33 0.24Calculate the Conveyor PullUse the appropriate formula to calculatethe actual Conveyor Pull (P).Horizontal ConveyorP = (2.1W + M) x f x CVertical ConveyorP = (M + W) x C + (1/2 of take-up force)Inclined ConveyorP = (M + W) x (f x C x COSa + C x SINa)+ (f x COSa – SINa) x W x CHorizontal ConveyorTake-Up TensionVertical ConveyorEngineering9Inclined Conveyorwww.renoldjeffrey.com • advancing chain technology 121


Engineering9Conveyor Chain SelectionStep 3 Step 4 Step 5Calculate Maximum Chain TensionUse the following formula to determinethe maximum chain tension (T):T = (P x MSF)/NCheck Rated Working Load of chainUse the following formula to verify thechain selection:RWL > T x SF x TFCheck Allowable Roller Load of chainUse Table 10 to check the allowableroller load if the chain roller or a toproller will directly support the weight ofthe conveyed material.Where:P = Calculated conveyor pullMSF = Multi-strand factor(see Table 8)N = Number of strandsTable 8: Multi-Strand FactorsNumber of Strands Factor (MSF)1 1.02 1.23 1.34 1.4Where:RWL =Rated working load forselected chainSF =Speed factor(see Table 7 on page 121)TF =Temperature factor(see Table 9)Table 9: Temperature Factors(carbon steel)Chain Temperature (ºF) Factor-20 to -4 4.0-3 to 15 3.016 to 300 1.0301 to 390 1.3391 to 450 2.0Table 10: Allowable Roller LoadsAllowable Roller Load (lbs)Chain Carrier Plastic StandardSize Roller Roller Roller40 — — 3350 — — 4460 — — 6680 — — 120100 — — 180120 — — 260140 — — 300160 — — 430C2040 143 44 33C2050 220 66 44C2060H 350 110 66C2080H 590 198 120C2100H 880 286 180C2120H 1,320 — 260C2160H 2,160 — 430122www.renoldjeffrey.com • advancing chain technology


Stainless Steel Selection andEngineering InformationThe following formula may be used to verify the selectionof stainless steel roller chains:Rated Working Load > T x SF x SC x TF x LF x CFWhere:Rated Working Load is found on pages 45–47.T = Calculated chain tension (see page 122)SF = Service Factor (see table below)SC = Chain Speed Coefficient (see table below)TF = Chain Temperature Factor (see table below)LF = Chain Lubrication Factor (see table below)CF = Chain Corrosion Factor (see table below)Stainless Steel Chain SelectionEngineering9Service Factor (SF) Corrosion Factor (CF)(see page 124)Operating ConditionFactorCorrosion RatingFactorLittle or no impact 11 1Moderate impact 1.22 1.23Large impact 1.53 1.444 Do Not UseTemperature Factor (TF)Temperature (˚F) SS PHSS 316SS-250 to -50 1 X 1-50 to 750 1 1 1750 to 950 1.2 1.8 1950 to 1,100 1.5 X 1.21,100 to 1,300 1.8 X 1.51,300 to 1,500 X X 2Lubrication Factor (LF)LubricationFactorChain will be lubricated 1Little or no lubrication 1.44Speed Coefficient (SC)Chain Speed (Ft/Min)Coefficient0-50 150-100 1.2100-150 1.4150-250 1.6www.renoldjeffrey.com • advancing chain technology 123


Engineering9Stainless Steel Chain SelectionCorrosion Resistance GuideThe table below represents a guide tothe relative resisting qualities of theindicated stainless steel materials anda variety of corrosive substances.Actual performance depends on trueconditions in the application, whichmay vary substantially from this data.Corrosion factor ratings appear on page 123.Best = 1Agent 304SS 600SS 316SS Agent 304SS 600SS 316SS70° F 1 1 1 Linseed Oil 1 1 1Acidic AcidBoiling to 50% 2 2 170° F 1 1 1LyeAcedic Vapors 3 4 2 Boiling 2 3 1Acetone 1 1 170° F 2 3 1Magnesium ChlorideAlcohol 1 1 1 Hot 3 4 2Aluminum Chloride 3 4 2 Malic Acid 1 1 1Aluminum Sulfate70° F 1 1 1 Marsh Gas 1 1 1Boiling 2 3 1 Mayonnaise 2 3 1Ammonia 1 1 1 Mercury 1 1 1Ammonium Chloride70° F 1 1 1 Milk 1 1 1Boiling 2 3 1 Mine Water (acid) 1 1 1Ammonium Nitrate 1 1 1 Molasses 1 1 1Baking Soda 1 1 1 Nickel Chloride 2 3 1Barium Carbonate 1 1 1 Nickel Sulfate 1 1 1Barium Chloride70° F 1 1 170° F 1 1 1Hot 2 3 1 Nitric AcidConcentrated Boiling 3 4 2Beer 1 1 1 Fuming 3 4 2Beet Juice 1 1 1 Oleic Acid 2 3 1Benzine 1 1 1Mineral 1 1 1Bleaching Powder 2 4 1 Vegetable 1 1 1OilsBlood (meat juices) 1 1 1 Refined 1 1 1Boric Acid 1 1 1 Crude 2 3 1Calcium Chloride (alkaline) 2 2 1 Oxalic Acid 1 1 1Calcium Oxychloride 3 4 2 Paraffin 1 1 1Calcium Sulfate 1 1 1 Pheonol (Carbolic Acid) 1 1 1Carbolic Acid 1 1 1 Phosphoric Acid Boiling 4 4 3Carbon Tetrachloride 1 2 1 Potash 1 1 1Caustic Lime, Potash, or Soda 1 1 1 Potassium Chloride 2 3 1Chlorine GasDry 3 4 2 Potassium Cyanide 1 1 1Moist 4 4 3 Potassium Nitrate 1 1 1Chlorinated Water 2 3 1 Potassium Sulfate 1 1 170° F 1 1 1 Potassium Sulfide 1 1 1Chromic AcidBoiling 3 4 170° F 1 2 1Salt70° F 1 1 1 150° F 2 3 1Citric AcidBoiling 3 4 1 Sea Water 2 3 1Ferric Chloride 3 4 2 Sewage (sulfuric acid present) 2 3 1Formic Acid 2 3 1 Sodium Acetate 1 1 1Fruit Juices 1 2 170° F 1 1 1Sodium ChlorideFuel Oil 1 1 1 Boiling 2 3 1Fuel Oil with Sulfuric Acid 3 4 3 Sodium Cyanide 1 1 1Gasoline 1 1 1 Sodium Fluoride 2 3 1Glue 1 1 1 Sodium Hydroxide 1 1 1Glue, acidified 2 3 1 Sodium Peroxide 1 1 1Glycerine 1 1 1 Sodium Sulfate 1 1 1Grape Juice 1 1 1 Sodium Sulfide 2 3 1Gypsum (Calcium Sulfate) 1 1 1 Sodium Sulfite 1 1 1Hydrochloric Acid 2% 4 4 4 Soap 1 1 1Hydrogen Peroxide 30% 1 2 170° F 2 3 1Hydrogen SulfideDry 1 1 1 Boiling 4 4 2Sulfuric AcidMoist 4 4 4 Fuming 3 4 1IodineDry 1 1 1 Vapor 2 3 1Moist 4 4 3 Vinegar (Acetic Acid) 1 1 1Ketchup 1 1 1 Whiskey 1 1 170° F 1 1 1 Wood Pulp 1 1 1Lactic Acid150° F 3 4 170° F 1 1 1Zinc ChlorideLard 1 1 1 Boiling 3 4 2124www.renoldjeffrey.com • advancing chain technology


Leaf Chain Selection andEngineering InformationRenold Jeffrey Leaf Chains are made specifically forapplications that require flexible, high-strength tensionlinkages for lifting and reciprocating motion devices. Theyoperate over sheaves rather than sprockets and are oftenfound on forklift trucks or as counterweight chains formachine tools or similar balancing applications.Leaf Chain SelectionThe type of end clevis used will determine whether male(inside) or female (outside) links are required at each end.Engineering9Leaf Chains are usually supplied cut to length and may besupplied with “male” (inside) or “female” (outside) links atthe ends. Chains supplied in an even number of pitchespossess one female and one male end. If an odd numberof pitches is required, please specify whether the endsshould be male or female. The type of clevis used willdetermine the end style required.The following formula may be used to verify the selection ofleaf chains:Minimum Tensile Strength > T x DF x SFWhere:Minimum Tensile Strength is found on pages 71–72T = Calculated maximum chain tensionDF = Duty Factor (see table below)SF = Service Factor (see table below)Outer End ClevisInner End ClevisWhen an outer end clevis is used, the clevis manufacturershould supply the connecting links.When an inner end clevis is used, drive fit connecting links(riveted or cottered) are recommended.Service Factor (SF)Operating ConditionFactorSmooth, little or no impact 1.0Moderate impact 1.3Large impact 1.5Duty Factor (DF)Type of Chain Max. Cycles/Day Factor10 9“AL” Series100 12“BL” Series 1000 9Note: Maximum chain speed = 100 ft./min.www.renoldjeffrey.com • advancing chain technology 125


Engineering9Useful Formulas, Tables, and Conversion FactorsSECTION126www.renoldjeffrey.com • advancing chain technology


HorsepowerHorsepower equals 33,000 foot-pounds per minute or 550foot-pounds per second. In terms of chain load and speeduse the following:HP = (Working Load x Ft/min) / 33,000orHP = Working Load x T x P x RPM / 396,000Where:T = Number of sprocket teethP = Chain pitches (in.)Engineering FormulasCentrifugal Pull or TensionCentrifugal pull or tension caused by the weight andvelocity of the chain may be calculated from the following:Centrifugal Pull = [Wt. Per Foot of Chain x (FPM) 2 ] / 115,900Total Chain TensionTotal Chain Tension = Working Load + Centrifugal PullEngineering9RatioRatio = N/n or R/rWhere:N = Number of teeth in large sprocketn = Number of teeth in small sprocketR = RPM of large sprocketr = RPM of small sprocketFeet Per Minute (FPM)FPM = (n x P x r) / 12Where:n = Number of teeth in small sprocketP = Pitchr = RPM of small sprocketChain Working LoadWhen the input horsepower is known and the chain workingload is desired, this can be calculated as follows:Working Load = (HP x 33,000) / FPMorWorking Load = (HP x 396,000) / (T x P x R)Chain Bearing PressureChain Bearing Pressure = (Working Load) / (L x D)Where:L = Bushing lengthD = Pin diameterTorque and Horsepower (HP)HP = [Torque (inch-pounds) x RPM] / 63,000orHP = [Torque (foot-pounds) x RPM] / 5,250Kilowatts to Horsepower1 KW = 1.333 HP (approx.)orHP = KW / [.746 x Efficiency]Where:Efficiency= .90 for generators= .87 for motorsFactor of Safety (FS)Factor of safety is determined from the following:FS = Chain ATS / Chain WLWhere:ATS = Average tensile strengthWL = Working loadwww.renoldjeffrey.com • advancing chain technology 127


Engineering9LengthVolumeVelocityMassForceMomentumPressurePowerTemp.Conversion FactorsSelected Conversion FactorsGiven Quantity Multiply By To ObtainCentimeter 0.0328084 FootCentimeter 0.3937008 InchFoot 0.3048 MeterInch 25.4 MillimeterMeter 3.28084 FootMillimeter 0.03937008 InchCentimeter 3 0.06102376 Inch 3Foot 3 28.31685 LiterInch 3 16,387.06 MilliliterLiter 0.03531466 Foot 3Liter 0.264172 GallonQuart 0.946 LiterCentimeter/second 1.968504 Foot/minuteCentimeter/second 0.328084 Foot/secondCentimeter/minute 0.3937008 Inch/minuteFoot/minute 0.3048 Meter/minuteFoot/second 0.3048 Meter/secondInch/minute 25.4 Millimeter/minuteMile/hour 1.609344 Kilometer/hourMeter/minute 3.28084 Foot/minuteMeter/second 196.8504 Foot/minuteMeter/second 3.28084 Foot/secondMillimeter/minute 0.03937008 Inch/minuteGram 0.03527397 OunceKilogram 35.27397 OunceKilogram 2.204622 PoundKilogram/meter 3 0.06242797 Pound/foot 3Ounce 28.34952 GramOunce 0.02834952 KilogramPound 0.4535924 KilogramPound/foot 3 16.01846 Kilogram/meter 3Newton 0.2248089 Pound-forceNewton 0.1019716 Kilogram-forceNewton/meter 0.005710148 Pound/inchNewton/meter 0.06852178 Pound/footPound/inch 175.1268 Newton/meterPound/foot 14.5939 Newton/meterKilogram-meter/second 7.233011 Pound-foot/secondKilogram-meter/second 86.79614 Pound-inch/secondPound-foot/second 0.138255 Kilogram-meter/secondPound-inch/second 0.01152125 Kilogram-meter/secondKilogram/centimeter 2 14.22334 Pound/inch 2Kilogram/meter 2 0.2048161 Pound/foot 2Kilogram/meter 2 9.80665 Newton/meter 2Newton/millimeter 2 145.0377 Pound/inch 2Newton/meter 2 0.1019716 Kilogram/meter 2Pound/inch 2 0.07030697 Kilogram/centimeter 2Pound/foot 2 4.882429 Kilogram/meter 2Pound/inch 2 0.006894757 Newton/millimeter 2Foot-pound/minute 0.02256967 WattHorsepower 0.7456999 KilowattHorsepower 745.6999 WattKilowatt 1.341022 HorsepowerWatt 0.001341022 HorsepowerWatt 44.25372 Foot-pound/minuteCelsius 9 (then /5 and + 32) FahrenheitFahrenheit (first -32, then /9) x 5 Celsius128www.renoldjeffrey.com • advancing chain technology


Chain Length in Feet Converted from PitchesConversion FactorsChain Pitch (inches)Pitches0.25 0.375 0.50 0.625 0.75 1.00 1.25 1.50 1.75 2.00 2.25 2.50 3.001 0.021 0.031 0.042 0.052 0.063 0.083 0.104 0.125 0.146 0.167 0.188 0.208 0.2502 0.042 0.063 0.083 0.104 0.125 0.167 0.208 0.250 0.292 0.333 0.375 0.417 0.5003 0.063 0.094 0.125 0.156 0.188 0.250 0.313 0.375 0.438 0.500 0.563 0.625 0.7504 0.083 0.125 0.167 0.208 0.250 0.333 0.417 0.500 0.583 0.667 0.750 0.833 1.0005 0.104 0.156 0.208 0.260 0.313 0.417 0.521 0.625 0.729 0.833 0.938 1.042 1.2506 0.125 0.188 0.250 0.313 0.375 0.500 0.625 0.750 0.875 1.000 1.125 1.250 1.5007 0.146 0.219 0.292 0.365 0.438 0.583 0.729 0.875 1.021 1.167 1.313 1.458 1.7508 0.167 0.250 0.333 0.417 0.500 0.667 0.833 1.000 1.167 1.333 1.500 1.667 2.0009 0.188 0.281 0.375 0.469 0.563 0.750 0.938 1.125 1.313 1.500 1.688 1.875 2.25010 0.208 0.313 0.417 0.521 0.625 0.833 1.042 1.250 1.458 1.667 1.875 2.083 2.50011 0.229 0.344 0.458 0.573 0.688 0.917 1.146 1.375 1.604 1.833 2.063 2.292 2.75012 0.250 0.375 0.500 0.625 0.750 1.000 1.250 1.500 1.750 2.000 2.250 2.500 3.00013 0.271 0.406 0.542 0.677 0.813 1.083 1.354 1.625 1.896 2.167 2.438 2.708 3.25014 0.292 0.438 0.583 0.729 0.875 1.167 1.458 1.750 2.042 2.333 2.625 2.917 3.50015 0.313 0.469 0.625 0.781 0.938 1.250 1.563 1.875 2.188 2.500 2.813 3.125 3.75016 0.333 0.500 0.667 0.833 1.000 1.333 1.667 2.000 2.333 2.667 3.000 3.333 4.00017 0.354 0.531 0.708 0.885 1.063 1.417 1.771 2.125 2.479 2.833 3.188 3.542 4.25018 0.375 0.563 0.750 0.938 1.025 1.500 1.875 2.250 2.625 3.000 3.375 3.750 4.50019 0.396 0.594 0.792 0.990 1.188 1.583 1.979 2.375 2.771 3.167 3.563 3.958 4.75020 0.417 0.625 0.833 1.042 1.250 1.667 2.083 2.500 2.917 3.333 3.750 4.167 5.00021 0.438 0.656 0.875 1.094 1.313 1.750 2.188 2.625 3.063 3.500 3.938 4.375 5.25022 0.458 0.688 0.917 1.146 1.375 1.833 2.292 2.750 3.208 3.667 4.125 4.583 5.50023 0.479 0.719 0.958 1.198 1.438 1.917 2.396 2.875 3.354 3.833 4.313 4.792 5.75024 0.500 0.750 1.000 1.250 1.500 2.000 2.500 3.000 3.500 4.000 4.500 5.000 6.00025 0.521 0.781 1.042 1.302 1.563 2.083 2.604 3.125 3.646 4.167 4.688 5.208 6.25026 0.542 0.813 1.083 1.354 1.625 2.167 2.708 3.250 3.792 4.333 4.875 5.417 6.50027 0.563 0.844 1.125 1.406 1.688 2.250 2.813 3.375 3.938 4.500 5.063 5.625 6.75028 0.583 0.875 1.167 1.458 1.750 2.333 2.917 3.500 4.083 4.667 5.250 5.833 7.00029 0.604 0.906 1.208 1.510 1.813 2.417 3.021 3.625 4.229 4.833 5.438 6.042 7.25030 0.625 0.938 1.250 1.563 1.875 2.500 3.125 3.750 4.375 5.000 5.625 6.250 7.50031 0.646 0.969 1.292 1.615 1.938 2.583 3.229 3.875 4.521 5.167 5.813 6.458 7.75032 0.667 1.000 1.333 1.667 2.000 2.667 3.333 4.000 4.667 5.333 6.000 6.667 8.00033 0.688 1.031 1.375 1.719 2.063 2.750 3.438 4.125 4.813 5.500 6.188 6.875 8.25034 0.708 1.063 1.417 1.771 2.125 2.833 3.542 4.250 4.958 5.667 6.375 7.083 8.50035 0.729 1.094 1.458 1.823 2.188 2.917 3.646 4.375 5.104 5.833 6.563 7.292 8.750Engineering9www.renoldjeffrey.com • advancing chain technology 129


Engineering9Conversion FactorsChain Length in Feet Converted from PitchesChain Pitch (inches)Pitches0.25 0.375 0.50 0.625 0.75 1.00 1.25 1.50 1.75 2.00 2.25 2.50 3.0036 0.750 1.125 1.500 1.875 2.250 3.000 3.750 4.500 5.250 6.000 6.750 7.500 9.00037 0.771 1.156 1.542 1.927 2.313 3.083 3.854 4.625 5.396 6.167 6.938 7.708 9.25038 0.792 1.188 1.583 1.979 2.375 3.167 3.958 4.750 5.542 6.333 7.125 7.917 9.50039 0.813 1.219 1.625 2.031 2.438 3.250 4.063 4.875 5.688 6.500 7.313 8.125 9.75040 0.833 1.250 1.667 2.083 2.500 3.333 4.167 5.000 5.833 6.667 7.500 8.333 10.00041 0.854 1.281 1.708 2.135 2.563 3.417 4.271 5.125 5.979 6.833 7.688 8.542 10.25042 0.875 1.313 1.750 2.188 2.625 3.500 4.375 5.250 6.125 7.000 7.875 8.750 10.50043 0.896 1.344 1.792 2.240 2.688 3.583 4.479 5.375 6.271 7.167 8.063 8.958 10.75044 0.917 1.375 1.833 2.292 2.750 3.667 4.583 5.500 6.417 7.333 8.250 9.167 11.00045 0.938 1.406 1.875 2.344 2.813 3.750 4.688 5.625 6.563 7.500 8.438 9.375 11.25046 0.958 1.438 1.917 2.396 2.875 3.833 4.792 5.750 6.708 7.667 8.625 9.583 11.50047 0.979 1.469 1.958 2.448 2.938 3.917 4.896 5.875 6.854 7.833 8.813 9.792 11.75048 1.000 1.500 2.000 2.500 3.000 4.000 5.000 6.000 7.000 8.000 9.000 10.000 12.00049 1.021 1.531 2.042 2.552 3.063 4.083 5.104 6.125 7.146 8.167 9.188 10.208 12.25050 1.042 1.563 2.083 2.604 3.125 4.167 5.208 6.250 7.292 8.333 9.375 10.417 12.50051 1.063 1.594 2.125 2.656 3.188 4.250 5.313 6.375 7.438 8.500 9.563 10.625 12.75052 1.083 1.625 2.167 2.708 3.250 4.333 5.417 6.500 7.583 8.667 9.750 10.833 13.00053 1.104 1.656 2.208 2.760 3.313 4.417 5.521 6.625 7.729 8.833 9.938 11.042 13.25054 1.125 1.688 2.250 2.813 3.375 4.500 5.625 6.750 7.875 9.000 10.125 11.250 13.50055 1.146 1.719 2.292 2.865 3.438 4.583 5.729 6.875 8.021 9.167 10.313 11.458 13.75056 1.167 1.750 2.333 2.917 3.500 4.667 5.833 7.000 8.167 9.333 10.500 11.667 14.00057 1.188 1.781 2.375 2.969 3.563 4.750 5.938 7.125 8.313 9.500 10.688 11.875 14.25058 1.208 1.813 2.417 3.021 3.625 4.833 6.042 7.250 8.458 9.667 10.875 12.083 14.50059 1.229 1.844 2.458 3.073 3.688 4.917 6.146 7.375 8.604 9.833 11.063 12.292 14.75060 1.250 1.875 2.500 3.125 3.750 5.000 6.250 7.500 8.750 10.000 11.250 12.500 15.00061 1.271 1.906 2.542 3.177 3.813 5.083 6.354 7.625 8.896 10.167 11.438 12.708 15.25062 1.292 1.938 2.583 3.229 3.875 5.167 6.458 7.750 9.042 10.333 11.625 12.917 15.50063 1.313 1.969 2.625 3.281 3.938 5.250 6.563 7.875 9.188 10.500 11.813 13.125 15.75064 1.333 2.000 2.667 3.333 4.000 5.333 6.667 8.000 9.333 10.667 12.000 13.333 16.00065 1.354 2.031 2.708 3.385 4.063 5.417 6.771 8.125 9.479 10.833 12.188 13.542 16.25066 1.375 2.063 2.750 3.438 4.125 5.500 6.875 8.250 9.625 11.000 12.375 13.750 16.50067 1.396 2.094 2.792 3.490 4.188 5.583 6.979 8.375 9.771 11.167 12.563 13.958 16.75068 1.417 2.125 2.833 3.542 4.250 5.667 7.083 8.500 9.917 11.333 12.750 14.167 17.00069 1.438 2.156 2.875 3.594 4.313 5.750 7.188 8.625 10.063 11.500 12.938 14.375 17.25070 1.458 2.188 2.917 3.646 4.375 5.833 7.292 8.750 10.208 11.667 13.125 14.583 17.500130www.renoldjeffrey.com • advancing chain technology


Conversion FactorsEngineering9Chain Length in Feet Converted from PitchesChain Pitch (inches)Pitches0.25 0.375 0.50 0.625 0.75 1.00 1.25 1.50 1.75 2.00 2.25 2.50 3.0071 1.479 2.219 2.958 3.698 4.438 5.917 7.396 8.875 10.354 11.833 13.313 14.792 17.75072 1.500 2.250 3.000 3.750 4.500 6.000 7.500 9.000 10.500 12.000 13.500 15.000 18.00073 1.521 2.281 3.042 3.802 4.563 6.083 7.604 9.125 10.646 12.167 13.688 15.208 18.25074 1.542 2.313 3.083 3.854 4.625 6.167 7.708 9.250 10.792 12.333 13.875 15.417 18.50075 1.563 2.344 3.125 3.906 4.688 6.250 7.813 9.375 10.938 12.500 14.063 15.625 18.75076 1.583 2.375 3.167 3.958 4.750 6.333 7.917 9.500 11.083 12.667 14.250 15.833 19.00077 1.604 2.406 3.208 4.010 4.813 6.417 8.021 9.625 11.229 12.833 14.438 16.042 19.25078 1.625 2.438 3.250 4.063 4.875 6.500 8.125 9.750 11.375 13.000 14.625 16.250 19.50079 1.646 2.469 3.292 4.115 4.938 6.583 8.229 9.875 11.521 13.167 14.813 16.458 19.75080 1.667 2.500 3.333 4.167 5.000 6.667 8.333 10.000 11.667 13.333 15.000 16.667 20.00081 1.688 2.531 3.375 4.219 5.063 6.750 8.438 10.125 11.813 13.500 15.188 16.875 20.25082 1.708 2.563 3.417 4.271 5.125 6.833 8.542 10.250 11.958 13.667 15.375 17.083 20.50083 1.729 2.594 3.458 4.323 5.188 6.917 8.646 10.375 12.104 13.833 15.563 17.292 20.75084 1.750 2.625 3.500 4.375 5.250 7.000 8.750 10.500 12.250 14.000 15.750 17.500 21.00085 1.771 2.656 3.542 4.427 5.313 7.083 8.854 10.625 12.396 14.167 15.938 17.708 21.25086 1.792 2.688 3.583 4.479 5.375 7.167 8.958 10.750 12.542 14.333 16.125 17.917 21.50087 1.813 2.719 3.625 4.531 5.438 7.250 9.063 10.875 12.688 14.500 16.313 18.125 21.75088 1.833 2.750 3.667 4.583 5.500 7.333 9.167 11.000 12.833 14.667 16.500 18.333 22.00089 1.854 2.781 3.708 4.635 5.563 7.417 9.271 11.125 12.979 14.833 16.688 18.542 22.25090 1.875 2.813 3.750 4.688 5.625 7.500 9.375 11.250 13.125 15.000 16.875 18.750 22.50091 1.896 2.844 3.792 4.740 5.688 7.583 9.479 11.375 13.271 15.167 17.063 18.958 22.75092 1.917 2.875 3.833 4.792 5.750 7.667 9.583 11.500 13.417 15.333 17.250 19.167 23.00093 1.938 2.906 3.875 4.844 5.813 7.750 9.688 11.625 13.563 15.500 17.438 19.375 23.25094 1.958 2.938 3.917 4.896 5.875 7.833 9.792 11.750 13.708 15.667 17.625 19.583 23.50095 1.979 2.969 3.958 4.948 5.938 7.917 9.896 11.875 13.854 15.833 17.813 19.792 23.75096 2.000 3.000 4.000 5.000 6.000 8.000 10.000 12.000 14.000 16.000 18.000 20.000 24.00097 2.021 3.031 4.042 5.052 6.063 8.083 10.104 12.125 14.146 16.167 18.188 20.208 24.25098 2.042 3.063 4.083 5.104 6.125 8.167 10.208 12.250 14.292 16.333 18.375 20.417 24.50099 2.063 3.094 4.125 5.156 6.188 8.250 10.313 12.375 14.438 16.500 18.563 20.625 24.750100 2.083 3.125 4.167 5.208 6.250 8.333 10.417 12.500 14.583 16.667 18.750 20.833 25.000www.renoldjeffrey.com • advancing chain technology 131


Engineering9Torque ValuesChart of Torque Values (inch-pounds)Horsepower (HP)RPM0.125 0.25 0.5 0.75 1 1.5 2 2.5 3 5 7.5 10 15 20 25 30 35 40 50 750.10 78,750 157,500 315,000 472,5000.20 39,375 78,750 157,500 236,250 315,000 472,5000.30 25,250 52,500 105,000 157,500 210,000 315,000 420,0000.40 19,688 39,375 78,750 118,125 157,500 236,250 315,000 393,750 472,5000.50 15,750 31,500 63,000 94,500 126,000 189,000 252,000 315,000 378,0000.60 13,125 26,250 52,500 78,750 105,000 157,500 210,000 262,500 315,0000.70 11,250 22,500 45,000 67,500 90,000 135,000 180,000 225,000 270,000 450,0000.80 9,844 19,688 39,375 59,063 78,750 118,125 157,500 196,875 236,250 393,7500.90 8,750 17,500 35,000 52,500 70,000 105,000 140,000 175,000 210,000 350,0001.00 7,875 15,750 31,500 47,250 63,000 94,500 126,000 157,500 189,000 315,000 472,5001.25 6,300 12,600 25,200 37,800 50,400 75,600 100,800 126,000 151,200 252,000 378,0001.50 5,250 10,500 21,000 31,500 42,000 63,000 84,000 105,000 126,000 210,000 315,000 420,0001.75 4,500 9,000 18,000 27,000 36,000 54,000 72,000 90,000 108,000 180,000 270,000 360,0002.00 3,938 7,875 15,750 23,625 31,500 47,250 63,000 78,750 94,500 157,500 236,250 315,000 472,5002.50 3,150 6,300 12,600 18,900 25,200 37,800 50,400 63,000 75,600 126,000 189,000 252,000 378,0003.00 2,625 5,250 10,500 15,750 21,000 31,500 42,000 52,500 63,000 105,000 157,500 210,000 315,000 420,0004.00 1,969 3,938 7,875 11,813 15,750 23,625 31,500 39,375 47,250 78,750 118,125 157,500 236,250 315,000 393,7505.00 1,575 3,150 6,300 9,450 12,600 18,900 25,200 31,500 37,800 63,000 94,500 126,000 189,000 252,000 315,000 378,000 441,0006.00 1,313 2,625 5,250 7,875 10,500 15,750 21,000 26,250 31,500 52,500 78,750 105,000 157,500 210,000 262,500 315,000 367,500 420,0007.00 1,125 2,250 4,500 6,750 9,000 13,500 18,000 22,500 27,000 45,000 67,500 90,000 135,000 180,000 225,000 270,000 315,000 360,000 450,0008.00 984 1,969 3,938 5,906 7,875 11,813 15,750 19,688 23,625 39,375 59,063 78,750 118,125 157,500 196,875 236,250 275,625 315,000 393,7509.00 875 1,750 3,500 5,250 7,000 10,500 14,000 17,500 21,000 35,000 52,500 70,000 105,000 140,000 175,000 210,000 245,000 280,000 350,00010.00 788 1,575 3,150 4,725 6,300 9,450 12,600 15,750 18,900 31,500 47,250 63,000 94,500 126,000 157,500 189,000 220,500 252,000 315,000 472,50012.00 656 1,313 2,625 3,938 5,250 7,875 10,500 13,125 15,750 26,250 39,375 52,500 78,750 105,000 131,250 157,500 183,750 210,000 262,500 393,75014.00 563 1,125 2,250 3,375 4,500 6,750 9,000 11,250 13,500 22,500 33,750 45,000 67,500 90,000 112,500 135,000 157,500 180,000 225,000 337,50016.00 492 984 1,969 2,953 3,938 5,906 7,875 9,844 11,813 19,688 29,531 39,375 59,063 78,750 98,438 118,125 137,813 157,500 196,875 296,31318.00 438 875 1,750 2,625 3,500 5,250 7,000 8,750 10,500 17,500 26,250 35,000 52,500 70,000 87,500 105,000 122,500 140,000 175,000 262,50020.00 394 788 1,575 2,363 3,150 4,725 6,300 7,875 9,450 15,750 23,625 31,500 47,250 63,000 78,750 94,500 110,250 126,000 157,500 236,25025.00 315 630 1,260 1,890 2,520 3,780 5,040 6,300 7,560 12,600 18,900 25,200 37,800 50,400 63,000 75,600 88,200 100,800 126,000 189,00030.00 263 525 1,050 1,575 2,100 3,150 4,200 5,250 6,300 10,500 15,750 21,000 31,500 42,000 52,500 63,000 73,500 84,000 105,000 157,50040.00 197 394 788 1,181 1,575 2,363 3,150 3,938 4,725 7,875 11,813 15,750 23,625 31,500 39,375 47,250 55,125 63,000 78,750 118,12550.00 158 315 630 945 1,260 1,890 2,520 3,150 3,780 6,300 9,450 12,600 18,900 25,200 31,500 37,800 44,100 50,400 63,000 94,50060.00 131 263 525 788 1,050 1,575 2,100 2,625 3,150 5,250 7,875 10,500 15,750 21,000 26,250 31,500 36,750 42,000 52,500 78,75070.00 113 225 450 675 900 1,350 1,800 2,250 2,700 4,500 6,750 9,000 13,500 18,000 22,500 27,000 31,500 36,000 45,000 67,50080.00 98 197 394 591 788 1,181 1,575 1,969 2,363 3,938 5,906 7,875 11,813 15,750 19,688 23,625 27,563 31,500 39,375 59,06390.00 88 175 350 525 700 1,050 1,400 1,750 2,100 3,500 5,250 7,000 10,500 14,000 17,500 21,000 24,500 28,000 35,000 52,500100.00 79 158 315 473 630 945 1,260 1,575 1,890 3,150 4,725 6,300 9,450 12,600 15,750 18,900 22,050 25,200 31,500 47,250132www.renoldjeffrey.com • advancing chain technology


Chart of Working Load Values (Lbs.)Working LoadsLinear Speed in Ft./Min.HP12.5 25 50 100 200 300 400 500 600 700 800 900 1,0000.25 660 330 165 83 41 28 21 17 14 12 10 9 80.50 1,320 660 330 165 83 55 41 33 28 24 21 18 170.75 1,980 990 495 248 124 83 62 50 41 35 31 28 251.00 2,640 1,320 660 330 165 110 83 66 55 47 41 37 331.50 3,960 1,980 990 495 248 165 124 99 83 71 62 55 502.00 5,280 2,640 1,320 660 330 220 165 132 110 94 83 73 662.50 6,600 3,300 1,650 825 413 275 206 165 138 118 103 92 833.00 7,920 3,960 1,980 990 495 330 248 198 165 141 124 110 994.00 10,560 5,280 2,640 1,320 660 440 330 264 220 189 165 147 1325.00 13,200 6,600 3,300 1,650 825 550 413 330 275 236 206 183 1657.50 19,800 9,900 4,950 2,475 1,238 825 619 495 413 354 309 275 24810.00 26,400 13,200 6,600 3,300 1,650 1,100 825 660 550 471 413 367 33015.00 39,600 19,800 9,900 4,950 2,475 1,650 1,238 990 825 707 619 550 49520.00 52,800 26,400 13,200 6,600 3,300 2,200 1,650 1,320 1,100 943 825 733 66025.00 66,000 33,000 16,500 8,250 4,125 2,750 2,063 1,650 1,375 1,179 1,031 917 82530.00 79,200 39,600 19,800 9,900 4,950 3,300 2,475 1,980 1,650 1,414 1,238 1,100 99035.00 92,400 46,200 23,100 11,550 5,775 3,850 2,888 2,310 1,925 1,650 1,444 1,283 1,15540.00 105,600 52,800 26,400 13,200 6,600 4,400 3,300 2,640 2,200 1,886 1,650 1,467 1,32050.00 132,000 66,000 33,000 16,500 8,250 5,500 4,125 3,300 2,750 2,357 2,063 1,833 1,65060.00 158,400 79,200 39,600 19,800 9,900 6,600 4,950 3,960 3,300 2,829 2,475 2,200 1,98075.00 198,000 99,000 49,500 24,750 12,375 8,250 6,188 4,950 4,125 3,536 3,094 2,750 2,475100.00 264,000 132,000 66,000 33,000 16,500 11,000 8,250 6,600 5,500 4,714 4,125 3,667 3,300125.00 330,000 165,000 82,500 41,250 20,625 13,750 10,313 8,550 6,875 5,893 5,156 4,583 4,125150.00 396,000 198,000 99,000 49,500 24,750 16,500 12,375 9,900 8,250 7,071 6,188 5,500 4,950175.00 462,000 231,000 115,500 57,750 28,875 19,250 14,438 11,550 9,625 8,250 7,219 6,417 5,775200.00 528,000 264,000 132,000 66,000 33,000 22,000 16,500 13,200 11,000 9,429 8,250 7,333 6,600250.00 660,000 330,000 165,000 82,500 41,250 27,500 20,625 16,500 13,750 11,786 10,313 9,167 8,250Engineering9www.renoldjeffrey.com • advancing chain technology 133


Engineering9Sprocket DataDriven Sprocket TeethSpeed Ratios for Sprocket Tooth CombinationsDriver Sprocket Teeth9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 269 1.0010 1.11 1.0011 1.22 1.10 1.0012 1.33 1.20 1.09 1.0013 1.44 1.30 1.18 1.08 1.0014 1.56 1.40 1.27 1.17 1.08 1.0015 1.67 1.50 1.36 1.25 1.15 1.07 1.0016 1.78 1.60 1.45 1.33 1.23 1.14 1.07 1.0017 1.89 1.70 1.55 1.42 1.31 1.21 1.13 1.06 1.0018 2.00 1.80 1.64 1.50 1.38 1.29 1.20 1.13 1.06 1.0019 2.11 1.90 1.73 1.58 1.46 1.36 1.27 1.19 1.12 1.06 1.0020 2.22 2.00 1.82 1.67 1.54 1.43 1.33 1.25 1.18 1.11 1.05 1.0021 2.33 2.10 1.91 1.75 1.62 1.50 1.40 1.31 1.24 1.17 1.11 1.05 1.0022 2.44 2.20 2.00 1.83 1.69 1.57 1.47 1.38 1.29 1.22 1.16 1.10 1.05 1.0023 2.56 2.30 2.09 1.92 1.77 1.64 1.53 1.44 1.35 1.28 1.21 1.15 1.10 1.05 1.0024 2.67 2.40 2.18 2.00 1.85 1.71 1.60 1.50 1.41 1.33 1.26 1.20 1.14 1.09 1.04 1.0025 2.78 2.50 2.27 2.08 1.92 1.79 1.67 1.56 1.47 1.39 1.32 1.25 1.19 1.14 1.09 1.04 1.0026 2.89 2.60 2.36 2.17 2.00 1.86 1.73 1.63 1.53 1.44 1.37 1.30 1.24 1.18 1.13 1.08 1.04 1.0028 3.11 2.80 2.55 2.33 2.15 2.00 1.87 1.75 1.65 1.56 1.47 1.40 1.33 1.27 1.22 1.17 1.12 1.0830 3.33 3.00 2.73 2.50 2.31 2.14 2.00 1.88 1.76 1.67 1.58 1.50 1.43 1.36 1.30 1.25 1.20 1.1532 3.56 3.20 2.91 2.67 2.46 2.29 2.13 2.00 1.88 1.78 1.68 1.60 1.52 1.45 1.39 1.33 1.28 1.2334 3.78 3.40 3.09 2.83 2.62 2.43 2.27 2.13 2.00 1.89 1.79 1.70 1.62 1.55 1.48 1.42 1.36 1.3135 3.89 3.50 3.18 2.92 2.69 2.50 2.33 2.19 2.06 1.94 1.84 1.75 1.67 1.59 1.52 1.46 1.40 1.3536 4.00 3.60 3.27 3.00 2.77 2.57 2.40 2.25 2.12 2.00 1.89 1.80 1.71 1.64 1.57 1.50 1.44 1.3838 4.22 3.80 3.45 3.17 2.92 2.71 2.53 2.38 2.24 2.11 2.00 1.90 1.81 1.73 1.65 1.58 1.52 1.4640 4.44 4.00 3.64 3.33 3.08 2.86 2.67 2.50 2.35 2.22 2.11 2.00 1.90 1.82 1.74 1.67 1.60 1.5442 4.67 4.20 3.82 3.50 3.23 3.00 2.80 2.63 2.47 2.33 2.21 2.10 2.00 1.91 1.83 1.75 1.68 1.6244 4.89 4.40 4.00 3.67 3.38 3.14 2.93 2.75 2.59 2.44 2.32 2.20 2.10 2.00 1.91 1.83 1.76 1.6945 5.00 4.50 4.09 3.75 3.46 3.21 3.00 2.81 2.65 2.50 2.37 2.25 2.14 2.05 1.96 1.88 1.80 1.7348 5.33 4.80 4.36 4.00 3.69 3.43 3.20 3.00 2.82 2.67 2.53 2.40 2.29 2.18 2.09 2.00 1.92 1.8560 6.67 6.00 5.45 5.00 4.29 4.00 3.75 3.53 3.33 3.16 3.00 2.86 2.73 2.61 2.50 2.40 2.3170 7.78 7.00 6.36 5.83 5.38 5.00 4.67 4.38 4.12 3.89 3.68 3.50 3.33 3.18 3.04 2.92 2.80 2.6972 8.00 7.20 6.55 6.00 5.54 5.14 4.80 4.50 4.24 4.00 3.79 3.60 3.43 3.27 3.13 3.00 2.88 2.7776 6.91 6.33 5.85 5.43 5.07 4.75 4.47 4.22 4.00 3.80 3.62 3.45 3.30 3.17 3.04 2.9280 7.27 6.67 6.15 5.71 5.33 5.00 4.71 4.44 4.21 4.00 3.81 3.64 3.48 3.33 3.20 3.0884 7.00 6.46 6.00 5.60 5.25 4.94 4.67 4.42 4.20 4.00 3.82 3.65 3.50 3.36 3.2395 7.31 6.79 6.33 5.94 5.59 5.28 5.00 4.75 4.52 4.32 4.13 3.96 3.80 3.6596 7.38 6.86 6.40 6.00 5.65 5.33 5.05 4.80 4.57 4.36 4.17 4.00 3.84 3.69102 7.29 6.80 6.38 6.00 5.67 5.37 5.10 4.86 4.64 4.43 4.25 4.08 3.92112 7.47 7.00 6.59 6.22 5.89 5.60 5.33 5.09 4.87 4.67 4.48 4.31134www.renoldjeffrey.com • advancing chain technology


Sprocket DataEngineering940 1/2" PitchO.D.ROOTP.D.DIA.O.D.ROOTP.D.DIA.Bottom CaliperMeasurementEVEN TOOTHBottom CaliperMeasurementODD TOOTHNumber ofTeethDiametersNumber ofDiametersNumber ofDiametersPitch Outside RootTeethPitch Outside RootTeethPitch Outside Root9 1.462 1.674 1.150 50 7.963 8.247 7.651 91 14.486 14.777 14.17410 1.618 1.839 1.306 51 8.122 8.407 7.810 92 14.645 14.937 14.33311 1.775 2.003 1.463 52 8.281 8.566 7.969 93 14.804 15.096 14.49212 1.932 2.166 1.620 53 8.440 8.725 8.128 94 14.963 15.255 14.65113 2.089 2.329 1.777 54 8.599 8.885 8.287 95 15.122 15.414 14.81014 2.247 2.491 1.935 55 8.758 9.044 8.446 96 15.282 15.573 14.97015 2.405 2.652 2.093 56 8.917 9.203 8.605 97 15.441 15.733 15.12916 2.563 2.814 2.251 57 9.076 9.363 8.764 98 15.600 15.892 15.28817 2.721 2.975 2.409 58 9.236 9.522 8.924 99 15.759 16.051 15.44718 2.879 3.136 2.567 59 9.395 9.681 9.083 100 15.918 16.210 15.60619 3.038 3.296 2.726 60 9.554 9.841 9.242 101 16.077 16.369 15.76520 3.196 3.457 2.884 61 9.713 10.000 9.401 102 16.236 16.529 15.92421 3.355 3.617 3.043 62 9.872 10.159 9.560 103 16.396 16.688 16.08422 3.513 3.778 3.201 63 10.031 10.318 9.719 104 16.555 16.847 16.24323 3.672 3.938 3.360 64 10.190 10.478 9.878 105 16.714 17.006 16.40224 3.831 4.098 3.519 65 10.349 10.637 10.037 106 16.873 17.165 16.56125 3.989 4.258 3.677 66 10.508 10.796 10.196 107 17.032 17.325 16.72026 4.148 4.418 3.836 67 10.667 10.956 10.355 108 17.191 17.484 16.87927 4.307 4.578 3.995 68 10.826 11.115 10.514 109 17.350 17.643 17.03828 4.466 4.738 4.154 69 10.985 11.274 10.673 110 17.509 17.802 17.19729 4.625 4.897 4.313 70 11.145 11.433 10.833 111 17.669 17.961 17.35730 4.783 5.057 4.471 71 11.304 11.593 10.992 112 17.828 18.121 17.51631 4.942 5.217 4.630 72 11.463 11.752 11.151 113 17.987 18.280 17.67532 5.101 5.377 4.789 73 11.622 11.911 11.310 114 18.146 18.439 17.83433 5.260 5.536 4.948 74 11.781 12.070 11.469 115 18.305 18.598 17.99334 5.419 5.696 5.107 75 11.940 12.230 11.628 116 18.464 18.757 18.15235 5.578 5.855 5.266 76 12.099 12.389 11.787 117 18.623 18.917 18.31136 5.737 6.015 5.425 77 12.258 12.548 11.946 118 18.783 19.076 18.47137 5.896 6.175 5.584 78 12.417 12.707 12.105 119 18.942 19.235 18.63038 6.055 6.334 5.743 79 12.577 12.867 12.265 120 19.101 19.394 18.78939 6.214 6.494 5.902 80 12.736 13.026 12.424 121 19.260 19.553 18.94840 6.373 6.653 6.061 81 12.895 13.185 12.583 122 19.419 19.713 19.10741 6.532 6.813 6.220 82 13.054 13.344 12.742 123 19.578 19.872 19.26642 6.691 6.972 6.379 83 13.213 13.504 12.901 124 19.737 20.031 19.42543 6.850 7.131 6.538 84 13.372 13.663 13.060 125 19.896 20.190 19.58444 7.009 7.291 6.697 85 13.531 13.822 13.219 126 20.056 20.349 19.74445 7.168 7.450 6.856 86 13.690 13.981 13.378 127 20.215 20.509 19.90346 7.327 7.610 7.015 87 13.849 14.140 13.537 128 20.374 20.668 20.06247 7.486 7.769 7.174 88 14.009 14.300 13.697 129 20.533 20.827 20.22148 7.645 7.929 7.333 89 14.168 14.459 13.856 130 20.692 20.986 20.38049 7.804 8.088 7.492 90 14.327 14.618 14.015136www.renoldjeffrey.com • advancing chain technology


O.D.ROOTP.D.DIA.O.D.ROOTP.D.DIA.Sprocket Data1/2" Pitch 41Engineering9Bottom CaliperMeasurementEVEN TOOTHBottom CaliperMeasurementODD TOOTHNumber ofTeethDiametersNumber ofDiametersNumber ofDiametersPitch Outside RootTeethPitch Outside RootTeethPitch Outside Root9 1.462 1.674 1.156 50 7.963 8.247 7.657 91 14.486 14.777 14.18010 1.618 1.839 1.312 51 8.122 8.407 7.816 92 14.645 14.937 14.33911 1.775 2.003 1.469 52 8.281 8.566 7.975 93 14.804 15.096 14.49812 1.932 2.166 1.626 53 8.440 8.725 8.134 94 14.963 15.255 14.65713 2.089 2.329 1.783 54 8.599 8.885 8.293 95 15.122 15.414 14.81614 2.247 2.491 1.941 55 8.758 9.044 8.452 96 15.282 15.573 14.97615 2.405 2.652 2.099 56 8.917 9.203 8.611 97 15.441 15.733 15.13516 2.563 2.814 2.257 57 9.076 9.363 8.770 98 15.600 15.892 15.29417 2.721 2.975 2.415 58 9.236 9.522 8.930 99 15.759 16.051 15.45318 2.879 3.136 2.573 59 9.395 9.681 9.089 100 15.918 16.210 15.61219 3.038 3.296 2.732 60 9.554 9.841 9.248 101 16.077 16.369 15.77120 3.196 3.457 2.890 61 9.713 10.000 9.407 102 16.236 16.529 15.93021 3.355 3.617 3.049 62 9.872 10.159 9.566 103 16.396 16.688 16.09022 3.513 3.778 3.207 63 10.031 10.318 9.725 104 16.555 16.847 16.24923 3.672 3.938 3.366 64 10.190 10.478 9.884 105 16.714 17.006 16.40824 3.831 4.098 3.525 65 10.349 10.637 10.043 106 16.873 17.165 16.56725 3.989 4.258 3.683 66 10.508 10.796 10.202 107 17.032 17.325 16.72626 4.148 4.418 3.842 67 10.667 10.956 10.361 108 17.191 17.484 16.88527 4.307 4.578 4.001 68 10.826 11.115 10.520 109 17.350 17.643 17.04428 4.466 4.738 4.160 69 10.985 11.274 10.679 110 17.509 17.802 17.20329 4.625 4.897 4.319 70 11.145 11.433 10.839 111 17.669 17.961 17.36330 4.783 5.057 4.477 71 11.304 11.593 10.998 112 17.828 18.121 17.52231 4.942 5.217 4.636 72 11.463 11.752 11.157 113 17.987 18.280 17.68132 5.101 5.377 4.795 73 11.622 11.911 11.316 114 18.146 18.439 17.84033 5.260 5.536 4.954 74 11.781 12.070 11.475 115 18.305 18.598 17.99934 5.419 5.696 5.113 75 11.940 12.230 11.634 116 18.464 18.757 18.15835 5.578 5.855 5.272 76 12.099 12.389 11.793 117 18.623 18.917 18.31736 5.737 6.015 5.431 77 12.258 12.548 11.952 118 18.783 19.076 18.47737 5.896 6.175 5.590 78 12.417 12.707 12.111 119 18.942 19.235 18.63638 6.055 6.334 5.749 79 12.577 12.867 12.271 120 19.101 19.394 18.79539 6.214 6.494 5.908 80 12.736 13.026 12.430 121 19.260 19.553 18.95440 6.373 6.653 6.067 81 12.895 13.185 12.589 122 19.419 19.713 19.11341 6.532 6.813 6.226 82 13.054 13.344 12.748 123 19.578 19.872 19.27242 6.691 6.972 6.385 83 13.213 13.504 12.907 124 19.737 20.031 19.43143 6.850 7.131 6.544 84 13.372 13.663 13.066 125 19.896 20.190 19.59044 7.009 7.291 6.703 85 13.531 13.822 13.225 126 20.056 20.349 19.75045 7.168 7.450 6.862 86 13.690 13.981 13.384 127 20.215 20.509 19.90946 7.327 7.610 7.021 87 13.849 14.140 13.543 128 20.374 20.668 20.06847 7.486 7.769 7.180 88 14.009 14.300 13.703 129 20.533 20.827 20.22748 7.645 7.929 7.339 89 14.168 14.459 13.862 130 20.692 20.986 20.38649 7.804 8.088 7.498 90 14.327 14.618 14.021www.renoldjeffrey.com • advancing chain technology 137


Engineering9Sprocket Data50 5/8" PitchO.D.ROOTP.D.DIA.O.D.ROOTP.D.DIA.Bottom CaliperMeasurementEVEN TOOTHBottom CaliperMeasurementODD TOOTHNumber ofTeethDiametersNumber ofDiametersNumber ofDiametersPitch Outside RootTeethPitch Outside RootTeethPitch Outside Root9 1.827 2.092 1.427 50 9.954 10.309 9.554 91 18.107 18.472 17.70710 2.023 2.299 1.623 51 10.153 10.508 9.753 92 18.306 18.671 17.90611 2.218 2.504 1.818 52 10.351 10.707 9.951 93 18.505 18.870 18.10512 2.415 2.708 2.015 53 10.550 10.907 10.150 94 18.704 19.069 18.30413 2.612 2.911 2.212 54 10.749 11.106 10.349 95 18.903 19.268 18.50314 2.809 3.113 2.409 55 10.948 11.305 10.548 96 19.102 19.467 18.70215 3.006 3.315 2.606 56 11.147 11.504 10.747 97 19.301 19.666 18.90116 3.204 3.517 2.804 57 11.346 11.703 10.946 98 19.500 19.865 19.10017 3.401 3.718 3.001 58 11.544 11.902 11.144 99 19.699 20.064 19.29918 3.599 3.920 3.199 59 11.743 12.102 11.343 100 19.898 20.263 19.49819 3.797 4.120 3.397 60 11.942 12.301 11.542 101 20.097 20.462 19.69720 3.995 4.321 3.595 61 12.141 12.500 11.741 102 20.295 20.661 19.89521 4.193 4.522 3.793 62 12.340 12.699 11.940 103 20.494 20.860 20.09422 4.392 4.722 3.992 63 12.539 12.898 12.139 104 20.693 21.059 20.29323 4.590 4.922 4.190 64 12.738 13.097 12.338 105 20.892 21.258 20.49224 4.788 5.122 4.388 65 12.936 13.296 12.536 106 21.091 21.457 20.69125 4.987 5.322 4.587 66 13.135 13.495 12.735 107 21.290 21.656 20.89026 5.185 5.522 4.785 67 13.334 13.694 12.934 108 21.489 21.855 21.08927 5.384 5.722 4.984 68 13.533 13.894 13.133 109 21.688 22.054 21.28828 5.582 5.922 5.182 69 13.732 14.093 13.332 110 21.887 22.253 21.48729 5.781 6.122 5.381 70 13.931 14.292 13.531 111 22.086 22.452 21.68630 5.979 6.321 5.579 71 14.130 14.491 13.730 112 22.285 22.651 21.88531 6.178 6.521 5.778 72 14.328 14.690 13.928 113 22.484 22.850 22.08432 6.376 6.721 5.976 73 14.527 14.889 14.127 114 22.682 23.049 22.28233 6.575 6.920 6.175 74 14.726 15.088 14.326 115 22.881 23.248 22.48134 6.774 7.120 6.374 75 14.925 15.287 14.525 116 23.080 23.447 22.68035 6.972 7.319 6.572 76 15.124 15.486 14.724 117 23.279 23.646 22.87936 7.171 7.519 6.771 77 15.323 15.685 14.923 118 23.478 23.845 23.07837 7.370 7.718 6.970 78 15.522 15.884 15.122 119 23.677 24.044 23.27738 7.568 7.918 7.168 79 15.721 16.083 15.321 120 23.876 24.243 23.47639 7.767 8.117 7.367 80 15.920 16.282 15.520 121 24.075 24.442 23.67540 7.966 8.316 7.566 81 16.118 16.481 15.718 122 24.274 24.641 23.87441 8.165 8.516 7.765 82 16.317 16.680 15.917 123 24.473 24.840 24.07342 8.363 8.715 7.963 83 16.516 16.879 16.116 124 24.672 25.039 24.27243 8.562 8.914 8.162 84 16.715 17.078 16.315 125 24.871 25.238 24.47144 8.761 9.114 8.361 85 16.914 17.278 16.514 126 25.070 25.437 24.67045 8.960 9.313 8.560 86 17.113 17.477 16.713 127 25.268 25.636 24.86846 9.159 9.512 8.759 87 17.312 17.676 16.912 128 25.467 25.835 25.06747 9.357 9.711 8.957 88 17.511 17.875 17.111 129 25.666 26.034 25.26648 9.556 9.911 9.156 89 17.710 18.074 17.310 130 20.692 20.986 20.38649 9.755 10.110 9.355 90 17.909 18.273 17.509138www.renoldjeffrey.com • advancing chain technology


O.D.ROOTP.D.DIA.O.D.ROOTP.D.DIA.Sprocket Data3/4" Pitch 60Engineering9Bottom CaliperMeasurementEVEN TOOTHBottom CaliperMeasurementODD TOOTHNumber ofTeethDiametersNumber ofDiametersNumber ofDiametersPitch Outside RootTeethPitch Outside RootTeethPitch Outside Root9 2.193 2.511 1.724 50 11.944 12.371 11.475 91 21.729 22.166 21.26010 2.427 2.758 1.958 51 12.183 12.610 11.714 92 21.968 22.405 21.49911 2.662 3.004 2.193 52 12.422 12.849 11.953 93 22.206 22.644 21.73712 2.898 3.249 2.429 53 12.660 13.088 12.191 94 22.445 22.882 21.97613 3.134 3.493 2.665 54 12.899 13.327 12.430 95 22.684 23.121 22.21514 3.370 3.736 2.901 55 13.137 13.566 12.668 96 22.922 23.360 22.45315 3.607 3.978 3.138 56 13.376 13.805 12.907 97 23.161 23.599 22.69216 3.844 4.221 3.375 57 13.615 14.044 13.146 98 23.400 23.838 22.93117 4.082 4.462 3.613 58 13.853 14.283 13.384 99 23.638 24.077 23.16918 4.319 4.703 3.850 59 14.092 14.522 13.623 100 23.877 24.315 23.40819 4.557 4.945 4.088 60 14.330 14.761 13.861 101 24.116 24.554 23.64720 4.794 5.185 4.325 61 14.569 15.000 14.100 102 24.355 24.793 23.88621 5.032 5.426 4.563 62 14.808 15.239 14.339 103 24.593 25.032 24.12422 5.270 5.666 4.801 63 15.046 15.478 14.577 104 24.832 25.271 24.36323 5.508 5.907 5.039 64 15.285 15.717 14.816 105 25.071 25.509 24.60224 5.746 6.147 5.277 65 15.524 15.956 15.055 106 25.309 25.748 24.84025 5.984 6.387 5.515 66 15.762 16.194 15.293 107 25.548 25.987 25.07926 6.222 6.627 5.753 67 16.001 16.433 15.532 108 25.787 26.226 25.31827 6.460 6.867 5.991 68 16.240 16.672 15.771 109 26.025 26.465 25.55628 6.699 7.106 6.230 69 16.478 16.911 16.009 110 26.264 26.703 25.79529 6.937 7.346 6.468 70 16.717 17.150 16.248 111 26.503 26.942 26.03430 7.175 7.586 6.706 71 16.956 17.389 16.487 112 26.742 27.181 26.27331 7.413 7.825 6.944 72 17.194 17.628 16.725 113 26.980 27.420 26.51132 7.652 8.065 7.183 73 17.433 17.867 16.964 114 27.219 27.659 26.75033 7.890 8.304 7.421 74 17.672 18.106 17.203 115 27.458 27.897 26.98934 8.128 8.544 7.659 75 17.910 18.344 17.441 116 27.696 28.136 27.22735 8.367 8.783 7.898 76 18.149 18.583 17.680 117 27.935 28.375 27.46636 8.605 9.023 8.136 77 18.387 18.822 17.918 118 28.174 28.614 27.70537 8.844 9.262 8.375 78 18.626 19.061 18.157 119 28.412 28.853 27.94338 9.082 9.501 8.613 79 18.865 19.300 18.396 120 28.651 29.091 28.18239 9.321 9.740 8.852 80 19.104 19.539 18.635 121 28.890 29.330 28.42140 9.559 9.980 9.090 81 19.342 19.778 18.873 122 29.129 29.569 28.66041 9.798 10.219 9.329 82 19.581 20.016 19.112 123 29.367 29.808 28.89842 10.036 10.458 9.567 83 19.820 20.255 19.351 124 29.606 30.046 29.13743 10.275 10.697 9.806 84 20.058 20.494 19.589 125 29.845 30.285 29.37644 10.513 10.936 10.044 85 20.297 20.733 19.828 126 30.083 30.524 29.61445 10.752 11.175 10.283 86 20.536 20.972 20.067 127 30.322 30.763 29.85346 10.990 11.415 10.521 87 20.774 21.211 20.305 128 30.561 31.002 30.09247 11.229 11.654 10.760 88 21.013 21.450 20.544 129 30.800 31.240 30.33148 11.467 11.893 10.998 89 21.252 21.688 20.783 130 31.038 31.479 30.56949 11.706 12.132 11.237 90 21.490 21.927 21.021www.renoldjeffrey.com • advancing chain technology 139


Engineering9Sprocket Data80 1" PitchO.D.ROOTP.D.DIA.O.D.ROOTP.D.DIA.Bottom CaliperMeasurementEVEN TOOTHBottom CaliperMeasurementODD TOOTHNumber ofTeethDiametersNumber ofDiametersNumber ofDiametersPitch Outside RootTeethPitch Outside RootTeethPitch Outside Root9 2.924 3.347 2.299 50 15.926 16.495 15.301 91 28.972 29.555 28.34710 3.236 3.678 2.611 51 16.244 16.813 15.619 92 29.290 29.873 28.66511 3.549 4.006 2.924 52 16.562 17.132 15.937 93 29.608 30.192 28.98312 3.864 4.332 3.239 53 16.880 17.451 16.255 94 29.927 30.510 29.30213 4.179 4.657 3.554 54 17.198 17.769 16.573 95 30.245 30.828 29.62014 4.494 4.981 3.869 55 17.517 18.088 16.892 96 30.563 31.147 29.93815 4.810 5.305 4.185 56 17.835 18.407 17.210 97 30.881 31.465 30.25616 5.126 5.627 4.501 57 18.153 18.725 17.528 98 31.200 31.784 30.57517 5.442 5.950 4.817 58 18.471 19.044 17.846 99 31.518 32.102 30.89318 5.759 6.271 5.134 59 18.789 19.363 18.164 100 31.836 32.421 31.21119 6.076 6.593 5.451 60 19.107 19.681 18.482 101 32.154 32.739 31.52920 6.392 6.914 5.767 61 19.425 20.000 18.800 102 32.473 33.057 31.84821 6.710 7.235 6.085 62 19.744 20.318 19.119 103 32.791 33.376 32.16622 7.027 7.555 6.402 63 20.062 20.637 19.437 104 33.109 33.694 32.48423 7.344 7.876 6.719 64 20.380 20.955 19.755 105 33.428 34.013 32.80324 7.661 8.196 7.036 65 20.698 21.274 20.073 106 33.746 34.331 33.12125 7.979 8.516 7.354 66 21.016 21.593 20.391 107 34.064 34.649 33.43926 8.296 8.836 7.671 67 21.335 21.911 20.710 108 34.382 34.968 33.75727 8.614 9.156 7.989 68 21.653 22.230 21.028 109 34.701 35.286 34.07628 8.931 9.475 8.306 69 21.971 22.548 21.346 110 35.019 35.605 34.39429 9.249 9.795 8.624 70 22.289 22.867 21.664 111 35.337 35.923 34.71230 9.567 10.114 8.942 71 22.607 23.185 21.982 112 35.655 36.241 35.03031 9.885 10.434 9.260 72 22.926 23.504 22.301 113 35.974 36.560 35.34932 10.202 10.753 9.577 73 23.244 23.822 22.619 114 36.292 36.878 35.66733 10.520 11.072 9.895 74 23.562 24.141 22.937 115 36.610 37.197 35.98534 10.838 11.392 10.213 75 23.880 24.459 23.255 116 36.928 37.515 36.30335 11.156 11.711 10.531 76 24.198 24.778 23.573 117 37.247 37.833 36.62236 11.474 12.030 10.849 77 24.517 25.096 23.892 118 37.565 38.152 36.94037 11.792 12.349 11.167 78 24.835 25.415 24.210 119 37.883 38.470 37.25838 12.110 12.668 11.485 79 25.153 25.733 24.528 120 38.202 38.788 37.57739 12.428 12.987 11.803 80 25.471 26.052 24.846 121 38.520 39.107 37.89540 12.745 13.306 12.120 81 25.790 26.370 25.165 122 38.838 39.425 38.21341 13.063 13.625 12.438 82 26.108 26.689 25.483 123 39.156 39.744 38.53142 13.381 13.944 12.756 83 26.426 27.007 25.801 124 39.475 40.062 38.85043 13.700 14.263 13.075 84 26.744 27.326 26.119 125 39.793 40.380 39.16844 14.018 14.582 13.393 85 27.063 27.644 26.438 126 40.111 40.699 39.48645 14.336 14.901 13.711 86 27.381 27.962 26.756 127 40.429 41.017 39.80446 14.654 15.219 14.029 87 27.699 28.281 27.074 128 40.748 41.335 40.12347 14.972 15.538 14.347 88 28.017 28.599 27.392 129 41.066 41.654 40.44148 15.290 15.857 14.665 89 28.335 28.918 27.710 130 41.384 41.972 40.75949 15.608 16.176 14.983 90 28.654 29.236 28.029140www.renoldjeffrey.com • advancing chain technology


O.D.ROOTP.D.DIA.O.D.ROOTP.D.DIA.Sprocket Data1" Pitch 100Engineering9Bottom CaliperMeasurementEVEN TOOTHBottom CaliperMeasurementODD TOOTHNumber ofTeethDiametersNumber ofDiametersNumber ofDiametersPitch Outside RootTeethPitch Outside RootTeethPitch Outside Root9 3.655 4.184 2.905 50 19.907 20.618 19.157 91 36.215 36.943 35.46510 4.045 4.597 3.295 51 20.305 21.017 19.555 92 36.613 37.341 35.86311 4.437 5.007 3.687 52 20.703 21.415 19.953 93 37.011 37.739 36.26112 4.830 5.415 4.080 53 21.100 21.813 20.350 94 37.408 38.137 36.65813 5.223 5.821 4.473 54 21.498 22.212 20.748 95 37.806 38.536 37.05614 5.617 6.227 4.867 55 21.896 22.610 21.146 96 38.204 38.934 37.45415 6.012 6.631 5.262 56 22.293 23.008 21.543 97 38.602 39.332 37.85216 6.407 7.034 5.657 57 22.691 23.407 21.941 98 39.000 39.730 38.25017 6.803 7.437 6.053 58 23.089 23.805 22.339 99 39.397 40.128 38.64718 7.198 7.839 6.448 59 23.486 24.203 22.736 100 39.795 40.526 39.04519 7.594 8.241 6.844 60 23.884 24.601 23.134 101 40.193 40.924 39.44320 7.991 8.642 7.241 61 24.282 25.000 23.532 102 40.591 41.322 39.84121 8.387 9.043 7.637 62 24.680 25.398 23.930 103 40.989 41.720 40.23922 8.783 9.444 8.033 63 25.077 25.796 24.327 104 41.387 42.118 40.63723 9.180 9.844 8.430 64 25.475 26.194 24.725 105 41.784 42.516 41.03424 9.577 10.245 8.827 65 25.873 26.593 25.123 106 42.182 42.914 41.43225 9.973 10.645 9.223 66 26.270 26.991 25.520 107 42.580 43.312 41.83026 10.370 11.045 9.620 67 26.668 27.389 25.918 108 42.978 43.710 42.22827 10.767 11.444 10.017 68 27.066 27.787 26.316 109 43.376 44.108 42.62628 11.164 11.844 10.414 69 27.464 28.185 26.714 110 43.774 44.506 43.02429 11.561 12.244 10.811 70 27.861 28.583 27.111 111 44.171 44.904 43.42130 11.958 12.643 11.208 71 28.259 28.982 27.509 112 44.569 45.302 43.81931 12.356 13.042 11.606 72 28.657 29.380 27.907 113 44.967 45.700 44.21732 12.753 13.441 12.003 73 29.055 29.778 28.305 114 45.365 46.098 44.61533 13.150 13.841 12.400 74 29.453 30.176 28.703 115 45.763 46.496 45.01334 13.547 14.240 12.797 75 29.850 30.574 29.100 116 46.161 46.894 45.41135 13.945 14.639 13.195 76 30.248 30.972 29.498 117 46.558 47.292 45.80836 14.342 15.038 13.592 77 30.646 31.370 29.896 118 46.956 47.690 46.20637 14.740 15.436 13.990 78 31.044 31.768 30.294 119 47.354 48.088 46.60438 15.137 15.835 14.387 79 31.441 32.167 30.691 120 47.752 48.486 47.00239 15.534 16.234 14.784 80 31.839 32.565 31.089 121 48.150 48.884 47.40040 15.932 16.633 15.182 81 32.237 32.963 31.487 122 48.548 49.282 47.79841 16.329 17.031 15.579 82 32.635 33.361 31.885 123 48.945 49.680 48.19542 16.727 17.430 15.977 83 33.033 33.759 32.283 124 49.343 50.077 48.59343 17.124 17.829 16.374 84 33.430 34.157 32.680 125 49.741 50.475 48.99144 17.522 18.227 16.772 85 33.828 34.555 33.078 126 50.139 50.873 49.38945 17.919 18.626 17.169 86 34.226 34.953 33.476 127 50.537 51.271 49.78746 18.317 19.024 17.567 87 34.624 35.351 33.874 128 50.935 51.669 50.18547 18.715 19.423 17.965 88 35.022 35.749 34.272 129 51.333 52.067 50.58348 19.112 19.821 18.362 89 35.419 36.147 34.669 130 51.730 52.465 50.98049 19.510 20.220 18.760 90 35.817 36.545 35.067www.renoldjeffrey.com • advancing chain technology 141


Engineering9Sprocket Data120 1-1/2" PitchO.D.ROOTP.D.DIA.O.D.ROOTP.D.DIA.Bottom CaliperMeasurementEVEN TOOTHBottom CaliperMeasurementODD TOOTHNumber ofTeethDiametersNumber ofDiametersNumber ofDiametersPitch Outside RootTeethPitch Outside RootTeethPitch Outside Root9 4.386 5.021 3.511 50 23.889 24.742 23.014 91 43.458 44.332 42.58310 4.854 5.517 3.979 51 24.366 25.220 23.491 92 43.935 44.810 43.06011 5.324 6.009 4.449 52 24.843 25.698 23.968 93 44.413 45.287 43.53812 5.796 6.498 4.921 53 25.320 26.176 24.445 94 44.890 45.765 44.01513 6.268 6.986 5.393 54 25.798 26.654 24.923 95 45.367 46.243 44.49214 6.741 7.472 5.866 55 26.275 27.132 25.400 96 45.845 46.720 44.97015 7.215 7.957 6.340 56 26.752 27.610 25.877 97 46.322 47.198 45.44716 7.689 8.441 6.814 57 27.229 28.088 26.354 98 46.800 47.676 45.92517 8.163 8.924 7.288 58 27.707 28.566 26.832 99 47.277 48.153 46.40218 8.638 9.407 7.763 59 28.184 29.044 27.309 100 47.754 48.631 46.87919 9.113 9.889 8.238 60 28.661 29.522 27.786 101 48.232 49.108 47.35720 9.589 10.371 8.714 61 29.138 30.000 28.263 102 48.709 49.586 47.83421 10.064 10.852 9.189 62 29.615 30.477 28.740 103 49.187 50.064 48.31222 10.540 11.333 9.665 63 30.093 30.955 29.218 104 49.664 50.541 48.78923 11.016 11.813 10.141 64 30.570 31.433 29.695 105 50.141 51.019 49.26624 11.492 12.294 10.617 65 31.047 31.911 30.172 106 50.619 51.496 49.74425 11.968 12.774 11.093 66 31.525 32.389 30.650 107 51.096 51.974 50.22126 12.444 13.254 11.569 67 32.002 32.867 31.127 108 51.573 52.452 50.69827 12.921 13.733 12.046 68 32.479 33.345 31.604 109 52.051 52.929 51.17628 13.397 14.213 12.522 69 32.956 33.822 32.081 110 52.528 53.407 51.65329 13.874 14.692 12.999 70 33.434 34.300 32.559 111 53.006 53.884 52.13130 14.350 15.172 13.475 71 33.911 34.778 33.036 112 53.483 54.362 52.60831 14.827 15.651 13.952 72 34.388 35.256 33.513 113 53.960 54.840 53.08532 15.303 16.130 14.428 73 34.866 35.733 33.991 114 54.438 55.317 53.56333 15.780 16.609 14.905 74 35.343 36.211 34.468 115 54.915 55.795 54.04034 16.257 17.088 15.382 75 35.820 36.689 34.945 116 55.393 56.272 54.51835 16.734 17.566 15.859 76 36.298 37.167 35.423 117 55.870 56.750 54.99536 17.211 18.045 16.336 77 36.775 37.644 35.900 118 56.348 57.228 55.47337 17.687 18.524 16.812 78 37.252 38.122 36.377 119 56.825 57.705 55.95038 18.164 19.002 17.289 79 37.730 38.600 36.855 120 57.302 58.183 56.42739 18.641 19.481 17.766 80 38.207 39.078 37.332 121 57.780 58.660 56.90540 19.118 19.959 18.243 81 38.684 39.555 37.809 122 58.257 59.138 57.38241 19.595 20.438 18.720 82 39.162 40.033 38.287 123 58.735 59.615 57.86042 20.072 20.916 19.197 83 39.639 40.511 38.764 124 59.212 60.093 58.33743 20.549 21.394 19.674 84 40.116 40.988 39.241 125 59.689 60.571 58.81444 21.026 21.873 20.151 85 40.594 41.466 39.719 126 60.167 61.048 59.29245 21.503 22.351 20.628 86 41.071 41.944 40.196 127 60.644 61.526 59.76946 21.980 22.829 21.105 87 41.548 42.421 40.673 128 61.122 62.003 60.24747 22.458 23.307 21.583 88 42.026 42.899 41.151 129 61.599 62.481 60.72448 22.935 23.786 22.060 89 42.503 43.377 41.628 130 62.076 62.958 61.20149 23.412 24.264 22.537 90 42.981 43.854 42.106142www.renoldjeffrey.com • advancing chain technology


O.D.ROOTP.D.DIA.O.D.ROOTP.D.DIA.Sprocket Data1-3/4" Pitch 140Engineering9Bottom CaliperMeasurementEVEN TOOTHBottom CaliperMeasurementODD TOOTHNumber ofTeethDiametersNumber ofDiametersNumber ofDiametersPitch Outside RootTeethPitch Outside RootTeethPitch Outside Root9 6.579 7.532 5.173 50 27.870 28.865 26.870 91 50.701 51.721 49.70110 7.281 8.275 5.875 51 28.427 29.423 27.427 92 51.258 52.278 50.25811 7.986 9.013 6.580 52 28.984 29.981 27.984 93 51.815 52.835 50.81512 8.693 9.747 7.287 53 29.541 30.539 28.541 94 52.372 53.392 51.37213 9.402 10.479 7.996 54 30.097 31.096 29.097 95 52.929 53.950 51.92914 10.111 11.208 8.705 55 30.654 31.654 29.654 96 53.486 54.507 52.48615 10.822 11.935 9.416 56 31.211 32.212 30.211 97 54.043 55.064 53.04316 11.533 12.662 10.127 57 31.767 32.769 30.767 98 54.599 55.621 53.59917 12.245 13.386 10.839 58 32.324 33.327 31.324 99 55.156 56.179 54.15618 12.957 14.110 11.551 59 32.881 33.884 31.881 100 55.713 56.736 54.71319 13.670 14.834 12.264 60 33.438 34.442 32.438 101 56.270 57.293 55.27020 14.383 15.556 12.977 61 33.995 35.000 32.995 102 56.827 57.850 55.82721 15.096 16.278 13.690 62 34.551 35.557 33.551 103 57.384 58.408 56.38422 15.810 16.999 14.404 63 35.108 36.115 34.108 104 57.941 58.965 56.94123 16.524 17.720 15.118 64 35.665 36.672 34.665 105 58.498 59.522 57.49824 17.238 18.440 15.832 65 36.222 37.230 35.222 106 59.055 60.079 58.05525 17.952 19.161 16.546 66 36.779 37.787 35.779 107 59.612 60.636 58.61226 18.667 19.880 17.261 67 37.336 38.344 36.336 108 60.169 61.194 59.16927 19.381 20.600 17.975 68 37.892 38.902 36.892 109 60.726 61.751 59.72628 20.096 21.319 18.690 69 38.449 39.459 37.449 110 61.283 62.308 60.28329 20.810 22.038 19.404 70 39.006 40.017 38.006 111 61.840 62.865 60.84030 21.525 22.757 20.119 71 39.563 40.574 38.563 112 62.397 63.422 61.39731 22.240 23.476 20.834 72 40.120 41.132 39.120 113 62.954 63.980 61.95432 22.955 24.195 21.549 73 40.677 41.689 39.677 114 63.511 64.537 62.51133 23.670 24.913 22.264 74 41.234 42.246 40.234 115 64.068 65.094 63.06834 24.385 25.631 22.979 75 41.790 42.804 40.790 116 64.625 65.651 63.62535 25.101 26.350 23.695 76 42.347 43.361 41.347 117 65.182 66.208 64.18236 25.816 27.068 24.410 77 42.904 43.918 41.904 118 65.739 66.765 64.73937 26.531 27.786 25.125 78 43.461 44.476 42.461 119 66.296 67.323 65.29638 27.247 28.503 25.841 79 44.018 45.033 43.018 120 66.853 67.880 65.85339 27.962 29.221 26.556 80 44.575 45.590 43.575 121 67.410 68.437 66.41040 28.677 29.939 27.271 81 45.132 46.148 44.132 122 67.967 68.994 66.96741 29.393 30.657 27.987 82 45.689 46.705 44.689 123 68.524 69.551 67.52442 30.108 31.374 28.702 83 46.246 47.262 45.246 124 69.081 70.108 68.08143 30.824 32.092 29.418 84 46.802 47.820 45.802 125 69.638 70.666 68.63844 31.539 32.809 30.133 85 47.359 48.377 46.359 126 70.195 71.223 69.19545 32.255 33.526 30.849 86 47.916 48.934 46.916 127 70.752 71.780 69.75246 32.971 34.244 31.565 87 48.473 49.492 47.473 128 71.309 72.337 70.30947 33.686 34.961 32.280 88 49.030 50.049 48.030 129 71.866 72.894 70.86648 34.402 35.678 32.996 89 49.587 50.606 48.587 130 72.423 73.451 71.42349 35.118 36.396 33.712 90 50.144 51.163 49.144www.renoldjeffrey.com • advancing chain technology 143


Engineering9Sprocket Data160 2" PitchO.D.ROOTP.D.DIA.O.D.ROOTP.D.DIA.Bottom CaliperMeasurementEVEN TOOTHBottom CaliperMeasurementODD TOOTHNumber ofTeethDiametersNumber ofDiametersNumber ofDiametersPitch Outside RootTeethPitch Outside RootTeethPitch Outside Root9 5.848 6.695 4.723 50 31.852 32.989 30.727 91 57.944 59.109 56.81910 6.472 7.355 5.347 51 32.488 33.627 31.363 92 58.580 59.746 57.45511 7.099 8.011 5.974 52 33.124 34.264 31.999 93 59.217 60.383 58.09212 7.727 8.664 6.602 53 33.761 34.901 32.636 94 59.853 61.020 58.72813 8.357 9.314 7.232 54 34.397 35.539 33.272 95 60.490 61.657 59.36514 8.988 9.963 7.863 55 35.033 36.176 33.908 96 61.126 62.294 60.00115 9.619 10.609 8.494 56 35.669 36.813 34.544 97 61.763 62.931 60.63816 10.252 11.255 9.127 57 36.306 37.451 35.181 98 62.399 63.567 61.27417 10.884 11.899 9.759 58 36.942 38.088 35.817 99 63.036 64.204 61.91118 11.518 12.543 10.393 59 37.578 38.725 36.453 100 63.672 64.841 62.54719 12.151 13.185 11.026 60 38.215 39.362 37.090 101 64.309 65.478 63.18420 12.785 13.828 11.660 61 38.851 39.999 37.726 102 64.945 66.115 63.82021 13.419 14.469 12.294 62 39.487 40.637 38.362 103 65.582 66.752 64.45722 14.053 15.110 12.928 63 40.124 41.274 38.999 104 66.219 67.388 65.09423 14.688 15.751 13.563 64 40.760 41.911 39.635 105 66.855 68.025 65.73024 15.323 16.392 14.198 65 41.396 42.548 40.271 106 67.492 68.662 66.36725 15.957 17.032 14.832 66 42.033 43.185 40.908 107 68.128 69.299 67.00326 16.592 17.671 15.467 67 42.669 43.822 41.544 108 68.765 69.936 67.64027 17.228 18.311 16.103 68 43.306 44.459 42.181 109 69.401 70.572 68.27628 17.863 18.950 16.738 69 43.942 45.096 42.817 110 70.038 71.209 68.91329 18.498 19.590 17.373 70 44.578 45.733 43.453 111 70.674 71.846 69.54930 19.134 20.229 18.009 71 45.215 46.371 44.090 112 71.311 72.483 70.18631 19.769 20.868 18.644 72 45.851 47.008 44.726 113 71.947 73.119 70.82232 20.405 21.506 19.280 73 46.488 47.645 45.363 114 72.584 73.756 71.45933 21.040 22.145 19.915 74 47.124 48.282 45.999 115 73.220 74.393 72.09534 21.676 22.783 20.551 75 47.760 48.919 46.635 116 73.857 75.030 72.73235 22.312 23.422 21.187 76 48.397 49.556 47.272 117 74.493 75.667 73.36836 22.947 24.060 21.822 77 49.033 50.193 47.908 118 75.130 76.303 74.00537 23.583 24.698 22.458 78 49.670 50.829 48.545 119 75.767 76.940 74.64238 24.219 25.336 23.094 79 50.306 51.466 49.181 120 76.403 77.577 75.27839 24.855 25.974 23.730 80 50.943 52.103 49.818 121 77.040 78.214 75.91540 25.491 26.612 24.366 81 51.579 52.740 50.454 122 77.676 78.850 76.55141 26.127 27.250 25.002 82 52.216 53.377 51.091 123 78.313 79.487 77.18842 26.763 27.888 25.638 83 52.852 54.014 51.727 124 78.949 80.124 77.82443 27.399 28.526 26.274 84 53.489 54.651 52.364 125 79.586 80.761 78.46144 28.035 29.164 26.910 85 54.125 55.288 53.000 126 80.222 81.397 79.09745 28.671 29.801 27.546 86 54.761 55.925 53.636 127 80.859 82.034 79.73446 29.307 30.439 28.182 87 55.398 56.562 54.273 128 81.496 82.671 80.37147 29.943 31.077 28.818 88 56.034 57.199 54.909 129 82.132 83.308 81.00748 30.580 31.714 29.455 89 56.671 57.836 55.546 130 82.769 83.944 81.64449 31.216 32.352 30.091 90 57.307 58.473 56.182144www.renoldjeffrey.com • advancing chain technology


O.D.ROOTP.D.DIA.O.D.ROOTP.D.DIA.Sprocket Data2-1/4" Pitch 180Engineering9Bottom CaliperMeasurementEVEN TOOTHBottom CaliperMeasurementODD TOOTHNumber ofTeethDiametersNumber ofDiametersNumber ofDiametersPitch Outside RootTeethPitch Outside RootTeethPitch Outside Root9 6.579 7.532 5.173 50 35.833 37.113 34.427 91 65.187 66.498 63.78110 7.281 8.275 5.875 51 36.549 37.830 35.143 92 65.903 67.215 64.49711 7.986 9.013 6.580 52 37.265 38.547 35.859 93 66.619 67.931 65.21312 8.693 9.747 7.287 53 37.981 39.264 36.575 94 67.335 68.647 65.92913 9.402 10.479 7.996 54 38.696 39.981 37.290 95 68.051 69.364 66.64514 10.111 11.208 8.705 55 39.412 40.698 38.006 96 68.767 70.080 67.36115 10.822 11.935 9.416 56 40.128 41.415 38.722 97 69.483 70.797 68.07716 11.533 12.662 10.127 57 40.844 42.132 39.438 98 70.199 71.513 68.79317 12.245 13.386 10.839 58 41.560 42.849 40.154 99 70.915 72.230 69.50918 12.957 14.110 11.551 59 42.276 43.566 40.870 100 71.632 72.946 70.22619 13.670 14.834 12.264 60 42.991 44.283 41.585 101 72.348 73.663 70.94220 14.383 15.556 12.977 61 43.707 44.999 42.301 102 73.064 74.379 71.65821 15.096 16.278 13.690 62 44.423 45.716 43.017 103 73.780 75.095 72.37422 15.810 16.999 14.404 63 45.139 46.433 43.733 104 74.496 75.812 73.09023 16.524 17.720 15.118 64 45.855 47.150 44.449 105 75.212 76.528 73.80624 17.238 18.440 15.832 65 46.571 47.867 45.165 106 75.928 77.245 74.52225 17.952 19.161 16.546 66 47.287 48.583 45.881 107 76.644 77.961 75.23826 18.667 19.880 17.261 67 48.003 49.300 46.597 108 77.360 78.677 75.95427 19.381 20.600 17.975 68 48.719 50.017 47.313 109 78.076 79.394 76.67028 20.096 21.319 18.690 69 49.435 50.733 48.029 110 78.792 80.110 77.38629 20.810 22.038 19.404 70 50.151 51.450 48.745 111 79.509 80.827 78.10330 21.525 22.757 20.119 71 50.867 52.167 49.461 112 80.225 81.543 78.81931 22.240 23.476 20.834 72 51.583 52.883 50.177 113 80.941 82.259 79.53532 22.955 24.195 21.549 73 52.299 53.600 50.893 114 81.657 82.976 80.25133 23.670 24.913 22.264 74 53.015 54.317 51.609 115 82.373 83.692 80.96734 24.385 25.631 22.979 75 53.731 55.033 52.325 116 83.089 84.409 81.68335 25.101 26.350 23.695 76 54.446 55.750 53.040 117 83.805 85.125 82.39936 25.816 27.068 24.410 77 55.162 56.467 53.756 118 84.521 85.841 83.11537 26.531 27.786 25.125 78 55.878 57.183 54.472 119 85.237 86.558 83.83138 27.247 28.503 25.841 79 56.594 57.900 55.188 120 85.953 87.274 84.54739 27.962 29.221 26.556 80 57.311 58.616 55.905 121 86.670 87.990 85.26440 28.677 29.939 27.271 81 58.027 59.333 56.621 122 87.386 88.707 85.98041 29.393 30.657 27.987 82 58.743 60.049 57.337 123 88.102 89.423 86.69642 30.108 31.374 28.702 83 59.459 60.766 58.053 124 88.818 90.139 87.41243 30.824 32.092 29.418 84 60.175 61.483 58.769 125 89.534 90.856 88.12844 31.539 32.809 30.133 85 60.891 62.199 59.485 126 90.250 91.572 88.84445 32.255 33.526 30.849 86 61.607 62.916 60.201 127 90.966 92.288 89.56046 32.971 34.244 31.565 87 62.323 63.632 60.917 128 91.682 93.005 90.27647 33.686 34.961 32.280 88 63.039 64.349 61.633 129 92.399 93.721 90.99348 34.402 35.678 32.996 89 63.755 65.065 62.349 130 93.115 94.438 91.70949 35.118 36.396 33.712 90 64.471 65.782 63.065www.renoldjeffrey.com • advancing chain technology 145


Engineering9Sprocket Data200 2-1/2" PitchO.D.ROOTP.D.DIA.O.D.ROOTP.D.DIA.Bottom CaliperMeasurementEVEN TOOTHBottom CaliperMeasurementODD TOOTHNumber ofTeethDiametersNumber ofDiametersNumber ofDiametersPitch Outside RootTeethPitch Outside RootTeethPitch Outside Root9 7.310 8.369 5.747 50 39.815 41.236 38.252 91 72.430 73.887 70.86710 8.090 9.194 6.527 51 40.610 42.033 39.047 92 73.226 74.683 71.66311 8.874 10.014 7.311 52 41.405 42.830 39.842 93 74.021 75.479 72.45812 9.659 10.830 8.096 53 42.201 43.627 40.638 94 74.817 76.275 73.25413 10.446 11.643 8.883 54 42.996 44.423 41.433 95 75.612 77.071 74.04914 11.235 12.453 9.672 55 43.791 45.220 42.228 96 76.408 77.867 74.84515 12.024 13.262 10.461 56 44.587 46.017 43.024 97 77.204 78.663 75.64116 12.815 14.068 11.252 57 45.382 46.813 43.819 98 77.999 79.459 76.43617 13.605 14.874 12.042 58 46.178 47.610 44.615 99 78.795 80.255 77.23218 14.397 15.678 12.834 59 46.973 48.406 45.410 100 79.591 81.051 78.02819 15.189 16.482 13.626 60 47.768 49.203 46.205 101 80.386 81.847 78.82320 15.981 17.284 14.418 61 48.564 49.999 47.001 102 81.182 82.643 79.61921 16.774 18.086 15.211 62 49.359 50.796 47.796 103 81.978 83.439 80.41522 17.567 18.888 16.004 63 50.155 51.592 48.592 104 82.773 84.235 81.21023 18.360 19.689 16.797 64 50.950 52.389 49.387 105 83.569 85.031 82.00624 19.153 20.489 17.590 65 51.746 53.185 50.183 106 84.364 85.827 82.80125 19.947 21.290 18.384 66 52.541 53.981 50.978 107 85.160 86.623 83.59726 20.741 22.089 19.178 67 53.336 54.778 51.773 108 85.956 87.419 84.39327 21.534 22.889 19.971 68 54.132 55.574 52.569 109 86.751 88.215 85.18828 22.329 23.688 20.766 69 54.927 56.371 53.364 110 87.547 89.011 85.98429 23.123 24.487 21.560 70 55.723 57.167 54.160 111 88.343 89.807 86.78030 23.917 25.286 22.354 71 56.518 57.963 54.955 112 89.138 90.603 87.57531 24.711 26.085 23.148 72 57.314 58.759 55.751 113 89.934 91.399 88.37132 25.506 26.883 23.943 73 58.109 59.556 56.546 114 90.730 92.195 89.16733 26.300 27.681 24.737 74 58.905 60.352 57.342 115 91.525 92.991 89.96234 27.095 28.479 25.532 75 59.701 61.148 58.138 116 92.321 93.787 90.75835 27.890 29.277 26.327 76 60.496 61.944 58.933 117 93.117 94.583 91.55436 28.684 30.075 27.121 77 61.292 62.741 59.729 118 93.913 95.379 92.35037 29.479 30.873 27.916 78 62.087 63.537 60.524 119 94.708 96.175 93.14538 30.274 31.671 28.711 79 62.883 64.333 61.320 120 95.504 96.971 93.94139 31.069 32.468 29.506 80 63.678 65.129 62.115 121 96.300 97.767 94.73740 31.864 33.266 30.301 81 64.474 65.925 62.911 122 97.095 98.563 95.53241 32.659 34.063 31.096 82 65.269 66.722 63.706 123 97.891 99.359 96.32842 33.454 34.860 31.891 83 66.065 67.518 64.502 124 98.687 100.155 97.12443 34.249 35.657 32.686 84 66.861 68.314 65.298 125 99.482 100.951 97.91944 35.044 36.455 33.481 85 67.656 69.110 66.093 126 100.278 101.747 98.71545 35.839 37.252 34.276 86 68.452 69.906 66.889 127 101.074 102.543 99.51146 36.634 38.049 35.071 87 69.247 70.702 67.684 128 101.869 103.339 100.30647 37.429 38.846 35.866 88 70.043 71.498 68.480 129 102.665 104.135 101.10248 38.224 39.643 36.661 89 70.839 72.295 69.276 130 103.461 104.931 101.89849 39.020 40.440 37.457 90 71.634 73.091 70.071146www.renoldjeffrey.com • advancing chain technology


O.D.ROOTP.D.DIA.O.D.ROOTP.D.DIA.Sprocket Data3" Pitch 240Engineering9Bottom CaliperMeasurementEVEN TOOTHBottom CaliperMeasurementODD TOOTHNumber ofTeethDiametersNumber ofDiametersNumber ofDiametersPitch Outside RootTeethPitch Outside RootTeethPitch Outside Root9 8.771 10.042 6.896 50 47.778 49.484 45.903 91 86.916 88.664 85.04110 9.708 11.033 7.833 51 48.732 50.440 46.857 92 87.871 89.619 85.99611 10.648 12.017 8.773 52 49.687 51.396 47.812 93 88.825 90.575 86.95012 11.591 12.996 9.716 53 50.641 52.352 48.766 94 89.780 91.530 87.90513 12.536 13.971 10.661 54 51.595 53.308 49.720 95 90.735 92.485 88.86014 13.482 14.944 11.607 55 52.550 54.264 50.675 96 91.690 93.441 89.81515 14.429 15.914 12.554 56 53.504 55.220 51.629 97 92.644 94.396 90.76916 15.377 16.882 13.502 57 54.459 56.176 52.584 98 93.599 95.351 91.72417 16.327 17.849 14.452 58 55.413 57.132 53.538 99 94.554 96.306 92.67918 17.276 18.814 15.401 59 56.367 58.088 54.492 100 95.509 97.262 93.63419 18.227 19.778 16.352 60 57.322 59.043 55.447 101 96.463 98.217 94.58820 19.177 20.741 17.302 61 58.276 59.999 56.401 102 97.418 99.172 95.54321 20.129 21.704 18.254 62 59.231 60.955 57.356 103 98.373 100.127 96.49822 21.080 22.665 19.205 63 60.186 61.911 58.311 104 99.328 101.082 97.45323 22.032 23.627 20.157 64 61.140 62.866 59.265 105 100.283 102.038 98.40824 22.984 24.587 21.109 65 62.095 63.822 60.220 106 101.237 102.993 99.36225 23.936 25.547 22.061 66 63.049 64.778 61.174 107 102.192 103.948 100.31726 24.889 26.507 23.014 67 64.004 65.733 62.129 108 103.147 104.903 101.27227 25.841 27.467 23.966 68 64.958 66.689 63.083 109 104.102 105.859 102.22728 26.794 28.426 24.919 69 65.913 67.645 64.038 110 105.057 106.814 103.18229 27.747 29.385 25.872 70 66.868 68.600 64.993 111 106.011 107.769 104.13630 28.700 30.343 26.825 71 67.822 69.556 65.947 112 106.966 108.724 105.09131 29.654 31.301 27.779 72 68.777 70.511 66.902 113 107.921 109.679 106.04632 30.607 32.260 28.732 73 69.731 71.467 67.856 114 108.876 110.634 107.00133 31.560 33.217 29.685 74 70.686 72.422 68.811 115 109.831 111.590 107.95634 32.514 34.175 30.639 75 71.641 73.378 69.766 116 110.785 112.545 108.91035 33.467 35.133 31.592 76 72.595 74.333 70.720 117 111.740 113.500 109.86536 34.421 36.090 32.546 77 73.550 75.289 71.675 118 112.695 114.455 110.82037 35.375 37.047 33.500 78 74.505 76.244 72.630 119 113.650 115.410 111.77538 36.329 38.005 34.454 79 75.459 77.200 73.584 120 114.605 116.365 112.73039 37.283 38.962 35.408 80 76.414 78.155 74.539 121 115.559 117.321 113.68440 38.236 39.919 36.361 81 77.369 79.111 75.494 122 116.514 118.276 114.63941 39.190 40.875 37.315 82 78.323 80.066 76.448 123 117.469 119.231 115.59442 40.144 41.832 38.269 83 79.278 81.021 77.403 124 118.424 120.186 116.54943 41.099 42.789 39.224 84 80.233 81.977 78.358 125 119.379 121.141 117.50444 42.053 43.745 40.178 85 81.188 82.932 79.313 126 120.334 122.096 118.45945 43.007 44.702 41.132 86 82.142 83.887 80.267 127 121.288 123.051 119.41346 43.961 45.658 42.086 87 83.097 84.843 81.222 128 122.243 124.006 120.36847 44.915 46.615 43.040 88 84.052 85.798 82.177 129 123.198 124.962 121.32348 45.869 47.571 43.994 89 85.006 86.753 83.131 130 124.153 125.917 122.27849 46.824 48.527 44.949 90 85.961 87.709 84.086www.renoldjeffrey.com • advancing chain technology 147


Engineering9Ordering InformationSECTION148www.renoldjeffrey.com • advancing chain technology


Chain ConstructionCut to Length ChainEven Number of PitchesOrdering InformationEngineering9Riveted ChainConnecting link at one endCottered ChainEndless chainOdd Number of PitchesMultiple-Strand ChainRoller Chain PartsConnecting and offset linksRoller LinkPin LinkRoller link at each endConnecting LinkOffset LinkConnecting link at each endwww.renoldjeffrey.com • advancing chain technology 149


Engineering9Ordering InformationRenold Jeffrey’s Engineering Department is happy toprovide technical assistance with chain selection. Thefollowing information will help to ensure a timely andaccurate order.Chain DetailsBase Chain Size:Pitch:No. of Strands:Length:Material:❏❏❏❏❏❏ANSIPitches(check one)Carbon SteelStainless SteelNickel-PlatedSynergy ®Syno ®Hydro-Service ® Attachment DetailsAttachment Type: (check all that❏ Bent Lug❏ Straight Lug❏ Extended❏ Wide Contour❏ Other (explain)Projection: One-side Two-sides(circle one)No. of Holes: One Two(circle one)Spacing: ❏ Every pitchbeginning at pitch❏ Other (explain)British Standardapply)(circle one)PinInches(circle one)no.Ordering Tips• ANSI standard chain can be supplied with either springclip or cottered connecting links.• Spring clip, slip-fit connecting links will be suppliedas standard for ANSI #60 and smaller unless otherwisespecified.• Cottered, slip-fit connecting links will be suppliedas standard for ANSI #80 and larger unless otherwisespecified.• Syno ® chains require Syno ® connecting and offset links.• Synergy ® chains, although dimensionally the same asstandard ANSI chains, should be used with Synergy ®connecting and offset links.• Double pitch roller chains with large rollers use the sameconnecting links as double pitch roller chains withstandard rollers. For example, C2062 chains use thesame connecting links as C2060.• ANSI #140 chain, which contains 6.857 pitches per foot,cannot be supplied in exact 10-foot lengths. Instead, thischain is supplied in lengths of 10.21 feet.• ANSI #180 chain, which contains 5.333 pitches per foot,cannot be supplied in exact 10-foot lengths. Instead, thischain is supplied in lengths of 10.13 feet.150www.renoldjeffrey.com • advancing chain technology

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