power transmission - Ptreview

Mar/Apr 2011 Issue 41Strike the balancebetween quality and costHuge stocks of FS Lube• 75,000 FS bearing units EX-STOCK!• Stainless steel & polyamide housings• Stainless steel inserts• Excellently packaged• Quality bearing units at the right price• Consignment stocks available upon requestwww.acorn-ind.co.ukUCPUCFL UCF UCT

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Mar/Apr 2011 PTR 3This month from the editorDear Readers/Advertisers,Welcome to Spring and a new financial year (for most of us), and hopefully new businessfor all in 2011. Of course, we should all be use to the VAT increase, let’s hope it stays, oreven reduces in the near future.From conversations with many of you, ‘business is good’, long may it last? Some evensay they are too busy to advertise… let us say, there is never a time to be too busy toadvertise, but I would say that wouldn’t I.Staying on a more positive note, we here at PT Review, are currently working on our longawaited, fully comprehensive website.This will headed by our very distinctive PTR Masthead. We will cover the latest News onTrade and Products, Interviews, Features, Recruitments, Events in the UK and Europeaninformation and much more.This is a very big step for us here at PT Review and it’s simply due to public demand!So, if you have any news or stories that you wish to contribute prior, please send them tous, or, if you wish to advertise on our forthcoming website or discuss any further mattes,please do not hesitate to contact us either by telephone, or e mail.Special FeatureSpecial Feature from Zettlex.p16ProductsThe NANO Z ? novel airbearing lift stage is new fromMicromech. p17Rolling bearings from NKE forindustrial gearboxes. p22p24We look forward to hearing from you.Tony LettsManaging EditorSilverthin’s focus on flexibility isthe Company’s most compellingattribute. p24NewsMagnom filtration units toimprove operating efficiencyand reduce downtime. p4Lubricant-free, lowmaintenance and lesscontamination from igus. p4MiniTec UK Ltd, has scoopedtwo prestigious awards forlocal businesses. p6Donghua Limited, developesan inspiring union with OceanEngineering Solutions to offeran on-site chain fitting service.p8 and tip-in flyer.All articles are checked for accuracy. However,PTR cannot legally accept any responsibilityfor any misrepresentation that may occur onfactual feature, or errors that may occur bymisprint. Whilst every effort is made to ensurethe accuracy and authenticity of advertisementsappearing. PTR does not accept anyresponsibility for claims made by advertisers. PTRcannot be held responsible for advertisementsreproduced from poor quality artwork.p8Ondrives takes delivery of anew grinding machine called theS21. p8David Turner, of Renold Chain,looks at the causes and thesolutions. p10Sure-Flex® is now availablefrom Huco Dynatork. p12All rights reserved. No part of this publicationmay be reproduced or transmitted in any form orby any means, electronic or mechanical includingphotocopying, recording or anyinformation storage or retrieval system withoutthe express prior written consentof the publisher.Additional copies may be requested at anominal charge.Good technical specification,an attractive price and soundapplication was all good forIndustrial Washing Machines(IWM). p12Transdev extend their productrange offering extrudedaluminium profile rails andaccessories for machine frameand safety guards. p1222 Leydene Avenue, Bournemouth,Dorset BH8 9JGUnited Kingdom.Tel: +44 (0) 1202 300033Fax:+44(0) 1202 399998E-mail: tony@internalaffairs.co.ukp12p24Ondrives announces a newrange of small bevel gearboxes.p24… sensor enables tip diameterof pulleys to be measuredaccurately and rapidly. p24News in briefBaldor launches IP65-ratedoperator panelBaldor Electric has added a compactIP65-rated operator panel with aCANopen interface to its range ofmotion control productsSchaeffler shows preventionis better than cureAt Maintec 2011 at the NEC, SchaefflerUK will hold advisory seminars andshowcase a comprehensive rangeof products and services for themaintenance and condition monitoringof plant and machinery.

4 PTR Mar/Apr 2011 PTR NewsBritish engineering helps tokeep Caterpillar trucks rollingOne of the USA’s largest and best-known dealers forCaterpillar off- road vehicles, Whayne Supply, has teamedup with a small UK engineering firm, Magnom, to introducemagnetic filtration units that have been shown to increaseoperational efficiency and decrease downtime.The Magnom filtration units, whichremove ferrous particles are beingused in conjunction with traditionalbarrier techniques to provideunmatched levels of filtration on thevehicles.The custom-designed units, usingpatented Magnom technology, arenow in volume production.Magnom engineers, led by thecompany’s technology director andoriginal inventor Jobey Marloweworked with Whayne Supply overa three year period to develop thecustom units for the Caterpillarvehicles. Whayne Supply focuses onthe Kentucky and southern Indianamarkets and is marketing the newfilters to other North AmericanCaterpillar dealers.Whayne Supply’s technologydivision general manager EdwinDowner said: “During testing, wewere convinced by the resultsthat adding Magnom units to themachine systems would reduceboth operating expenses andunscheduled downtime.”Magnom chairman Robert Spendersaid: “It is especially pleasing to usto be working with a partner thathas the resources to introduce thebenefits of Magnom technology toa wider audience. These benefitsquickly translate into reducedwarranty and general maintenancecosts and so we are quietlyconfident of take up across NorthAmerica. “Plastic bearings help reduceenvironmental impactThe Environmental Protection Officein Baden-Württemberg, Germanyasserts that more than 50% of alllubricants leak into the environment.According to figures published byRWTH Aachen University, the annualusage of lubricants is 37.3 Milliontons worldwide, which amounts tomore than 18 Million tons leakedinto the environment every year.What’s more, results of a recentMIT survey reveal that damagecaused by friction and wear costs upto six percent of the gross nationalproduct every year.By replacing conventional bearingswith igus polymer bearings OEMscan reduce their environmentalimpact considerably, as the iguspolymer bearings do not requirelubrication. As they require lowmaintenance, the use of dryrunningpolymer bearings canachieve significant cost savingsand machine safety can also beincreased.With continuous advancements inpolymer material development, thebearings specialist igus supplieswidest range of alternatives tolubricated metallic plain androlling bearings for more and moreapplications. igus currently offersbearings to suit almost everyapplication in 35 oil free polymerbearing materials.The lightweight, plastic bearingshelp the environment in other waystoo; they reduce fuel consumptionand carbon dioxide output asthe reduced weight leads tolower masses and subsequentlylower energy consumption. Inmanufacture, less oil is used toproduce the polymer than bothaluminium and steel meaning thereis less contamination.For reader enquires, pleasemention PTR:Igus UK Limited51A Caswell RoadBrackmillsNorthamptonNN4 7PWTel: 01604 677240Fax: 01604 677245Email: sales@igus.co.ukwww.igus.co.uk

Transdev backs triplewinner in YoungEngineer of the YearLast May, when Transdev published its story about the helpthat it had given to Andrew Cowan as the intermediate levelwinner of the National Science and Engineering Competition,nobody could have anticipated the success that the pastyear has since brought him.PlugandPlay_3:Layout 1 04.01.2010 9:08 Uhr Seite 1Mar/Apr 2011 PTR 5All work.No play!With his impressive Search andRescue Robot that features atraction system using the Poolebased power transmissionspecialists BRECOflex ® ATK10series timing belts with specialLinatex® high grip bonded backings,Andrew has now been awardedthe senior level UK Young Engineerof the Year prize at this year’scompetition - and is the onlycompetitor to have won a prizein every age category for threeconsecutive years.In the busy year since Andrewreceived the intermediate levelprize, he has refined and improvedthe robot’s design and functionalityby adding a water cannon, highresolution camera, touchscreensensor monitor and joysticks tocontrol the robot and camera. LastNovember Andrew was invitedto exhibit his project at the ICTEducation Show in November asa guest contributor to the Designand Technology Association’s standhaving earlier won a British ScienceAssociation Crest Award whichrequires more than 100 hours ofproject time linked with mentorsfrom industry such as Transdev.Now 18 years old and studying foran MEng in Electronic Engineeringat Southampton University, Andrewtopped his efforts in the 2011Science and Engineering Competitionfinals at the Big Bang Fair in Marchwith the senior level engineeringprize after being shortlisted withfive other candidates in a ‘Dragons’Den’ style presentation playoff toa celebrity judging panel. As theUK’s new Young Engineer of theAndrew Cowan collects his awardat the National Science andEngineering CompetitionYear Andrew will be an ambassadorfor engineering throughout theUK, encouraging and inspiringyoung people to pursue a careerin engineering. Ian Osborne,Transdev’s Chairman commented,“Transdev are delighted to havebeen involved in helping Andrewwith his thoroughly deserved awardfor the Search and Rescue Robotproject and wish him continuedsuccess for his future career inengineering.”Details of the National ScienceCompetition can be found at www.nationalsciencecompetition.org/For reader enquiries, pleasemention PTR:Transmission Developments Co(G.B.) Ltd.Dawkins Road, Poole,Dorset BH15 4HFTel +44 1202 675555Email: iano@transdev.co.ukFax +44 1202 677466www.transdev.co.ukThe Search & Rescue Robot tows a car during trials with new controlunit in insetEliminate clearance: DryLin ® W adjustablelinear bearing… with igus ® turn-to-fitfunction... just turn the screw... adjust theplay... adjustable in small steps.®igus ® (UK) Limited Phone 01604 677240 Fax 677245sales@igus.co.uk order-service: Mon-Fri 8-8, Sat 8-12

6 PTR Mar/Apr 2011PTR NewsMiniTec UK Limitedwins two INSPIRE10Business AwardsMiniTec UK Ltd, has scooped two prestigious awards forlocal businesses in the recent Basingstoke and NorthHampshire INSPIRE10 Business Awards.Following a new factory openingearlier in 2010 with 300% increasedcapacity and an export market thathas grown from zero to £2millionin the last few years, ManagingDirector Gary Livingstone wasawarded the individual Entrepreneurof the Year award for the secondtime running and MiniTec won theExporter of the Year.MiniTec UK Ltd shares its new15,000 sq ft facility with motioncontrol specialists LG Motion Ltdwith Gary Livingstone headingup both companies. MiniTec UKoperates as a manufacturingsubsidiary of MiniTec GmbH &Co KG, the German producer ofmachine framing systems andcomponents and LG Motiondesigns and manufactures itsown brand electromechanicalpositioning equipment as well beinga distributor partner for severalglobal producers of motion controlcomponents and systems. Betweenboth companies the complementaryproduct lines allow OEMs,systems integrators and researchorganisations to source automatedmachinery as completely integratedsub-systems with machine frames,positioning mechanics and motioncontrols designed and assembledin-house.The INSPIRE10 awards are open tocompanies and entrepreneurs fromacross the region and allow leadingfirms (both large and small) andindividuals to gain the recognitionthey deserve. The track record forMiniTec UK Limited and LG MotionLimited includes exceptional growthsince they were formed only 6 yearsago with an increase in the headcount to 15 staff and a significantinvestment in machine tools andproduction equipment.The two companies havealso worked closely with localeducational support initiatives atBasingstoke College of Technologyand have started their ownapprenticeship programme recently.“These business awards reflectour hard work over the pastsix years where we have madeoutstanding and completely selffundedprogress” says Livingstone,“they help crown another great yearfor us where we moved to a newfacility, allowing us the opportunityto expand our workforce and gearourselves for more exciting growth.”For reader enquiries, pleasemention PTR:Gary LivingstoneMiniTec UK Ltd.Unit 1 Telford Road,Houndmills Industrial Estate,Basingstoke,HampshireRG21 6YUTel +44 (0) 1256 365605Fax +44(0) 1256 365606Email: g.livingstone@minitec.co.ukwww.minitec.co.ukIntelligent Solutions In Power TransmissionAn increasing range of quality industrial disc brakes• Excellent technical support• 3D Solid models available• Most models X-Stock• 40 years experienceHPW 101 RHydraulically actuated -pneumatically releasedUp to 21,000 NmDVH 40 FPM/TSpring actuated -pneumatically releasedHeavy DutyUp to 29,000 NmRINGSPANN (U.K.) Ltd.Telephone: 01234 342511Telefax: 01234 217322info@ringspann.co.ukwww.ringspann.comDV 20 MSManually actuated -manually releasedIndustrial Disc Brakes • Torque Limiters • Couplings • Shaft-Hub-Connections • Freewheels • Force Limiters • Irreversible Locks

8 PTR Mar/Apr 2011PTR NewsDonghua now offers on-siteChain Fitting Service, withOcean partnershipDonghua Limited, the UK distribution arm for one of theworld’s largest chain manufacturers, has developed aninspiring union with Ocean Engineering Solutions to offer anon-site chain fitting service. Many businesses don’t have thelevels of in-house fitters and engineers that they used to, soout-sourcing this requirement is a cost effective solution.Ocean Engineering is the latestcompany to join Donghua’sgrowing network of ApprovedProduct Partners. They will becomeDonghua’s North West distributor ofRoller Chain products and provideDonghua’s Product Partners andcustomers with access to a nationalnetwork of service engineers.Talking about the new developmentBob Wellsbury, Managing Directorof Donghua Limited, said: “Ibelieve our partnership with OceanEngineering will provide a great,added-value benefit and uniqueoffering to our customers.”Blackburn based Ocean Engineeringspecialises in the distribution ofchain to the OEM market and foodindustry. In addition, they contractengineering labour and fabricationservices across all sectors. Thecompany works throughout theUK but has also undertaken outsourcedprojects in Saudi Arabia,Spain and France.Ondrives invests in S21“We hope this will take Ondrives tothe next level in terms of grinding ourprecision gears on-site, maintainingour high standards in both productterms and customer service levels”,states Managing Director, BenHinchliffe.The S21 is especially suitable forgrinding high precision workpieces,as required by the aerospace,precision mechanics and hydraulic/pneumatic sectors.There is a turret wheelhead thatswivels automatically, a frequencycontrolled motor grinding spindle forexternal and internal grinding from42,000 to 60,000 rpm and it is ableto sense when about to touch on forgrinding. As well as an automaticdressing of the grinding wheel usingstudiers latest software that bringsDuncan McLennan, Sales Director ofOcean Engineering, said: “Donghuachain is the only viable alternativeto other major brands. The price isright and the quality is high and thisis what we will be promoting.”Ocean Engineering has recentlymoved to new premises whichboasts 400 m2 of space, half ofwhich is for storage and distributionof chains, whilst the other halfcontains machinery and fabricationequipment.For reader enquiries, pleasemention PTR:Duncan McLennanOcean Engineering Solutions Limited110 Whinney Lane,Blackburn,Lancashire,BB2 7DL01254 66455101254 664551Email: oceanengsolutions@live.co.ukwww.oes-site.co.ukOndrives Ltd have ordered and recently taken receipt ofa new grinding machine called the S21 designed for thegrinding of workpieces in individual as well as small andlarge series production operations.a high level of functions to grindingoperations which are not available onolder machines.The workhead for universal use inlive grinding operations and grindingbetween centres is of particularuse and Ondrives decided to havethe option of having a workheadspecially designed for grinding chuckcomponents also fitted, so thatLocal Brammer BranchManager rides to nationalcycle speedway gloryAn employee of Brammer, the UK’s leading supplier ofmanufacturing, repair and overhaul (MRO) products andservices, has got on his bike to great effect as partof a local cycle speedway team which has clinchednational glory.Kevin Burns, manager atBrammer’s branch at Corby inNorthamptonshire, is captainof Leicester Monarchs cyclespeedway team who this seasonhave seen off competition fromacross the UK to win the Britishchampionship – the sport’sequivalent of the FA Cup.All of the eight-strong team areamateurs, with the season takingthem as far as Edinburgh andExeter for their fixtures.Kevin, who has beenparticipating in the sportfor around 25 years now,is a full England and GreatBritain international and hasrepresented his country inevents around the world.The team’s home track is atLeicester and is one of justthree designated ‘national’ cyclespeedway centres in the UK.The rules of cycle speedwayare similar to those of themotorcycling equivalent - eachmatch comprises a numberof heats each with four riderscompeting for points, althoughcontact between riders is morefrequent than in traditionalspeedway.every eventuality is covered wherenecessary.Ondrives can undertake all types ofgrinding work as well as other typesof CNC milling and manufacturing.Their range of in-house manufacturedprecision and commercial gearsare amongst their most popularranges of products along with thefamous red anodised gearboxes, allmanufactured in the UK and Ondrivesespecially welcome the opportunityto quote for complete specials aswell as modified standards.All details are on the Ondriveswebsite at and in their newest gearsand gearboxes catalogue, out now.Call for your free, no obligation copy.For reader enquiries, pleasemention PTR:Amanda LaughtonOndrives LtdFoxwood Industrial Park,Foxwood Road, Chesterfield,Derbyshire S41 9RN, EnglandTel: 00 44 1246 455500Fax: 00 44 1246 455522Email:Amanda.laughton@ondrives.comwww.ondrives.comKevin said: “Cycle speedway is areally fast and entertaining sportand we always get good supportat our matches. To win the BritishChampionship is a great effortfrom the team and a reward forthe many hours of dedicatedtraining and also the travellingwhich goes with taking part innational tournaments.”Brammer supplies a wide varietyof MRO products includingbearings, mechanical powertransmission products (includinggearboxes and motors),pneumatics, hydraulics, sealsand industrial automation, aswell tools, maintenance andhealth and safety products, tomanufacturing companies inthe Corby area to support theirmaintenance operations.

Mar/Apr 2011 PTR 9SPRAG TYPE CLUTCHESTalk about Torque!Freewheel clutches andBall Bearing clutchesWide range ex stock!IBTLINDUSTRIA BEARINGS AND TRANSMISSIONS LTDHead Office:Industria Bearings and TransmissionsAtlantic House, 76 Cowley Mill Road,Uxbridge, Middlesex UB8 2QETel: +44 (0) 1895 237971Fax: +44 (0) 1895 272191E-mail: sales@industria.co.ukISO 9001BUREAU VERITASCertificationExclusive UK agentPlease contact us for commercial and technical informationMidlands:Silverthorne Lane, Cradley Heath,West Midlands B64 5APTel: +44 (0) 1215 252988Fax: +44 (0) 1215 253607E-mail: midlands@industria.co.ukwww.industriabearings.comNorth:17 Enterprise Park Industrial EstateMoorhouse Avenue, Old Lane, BeestonLeeds LS11 8HATel: +44 (0) 1132 723777Fax: +44 (0) 1132 723888E-mail: leeds@industria.co.uke-mail: sales@moore-international.com

10 PTR Mar/Apr 2011PTR NewsChain jumping its sprockets?Here’s the solutionHave you ever had problems with transmission chain jumpingor climbing its sprockets? David Turner, of Renold Chain,looks at the causes and the solutions.A common cause of chain climbingor even jumping its sprockets isexcessively worn sprockets, or wornchain, or both. Worn sprockets willalso cause chain to wear rapidly, soit’s important to replace it and checkthe condition of the sprockets beforefitting new chain.Look at the faces of the sprocket’steeth. Any wear will be seen as apolished worn strip, about the pitchcircle diameter (PCD), on each of theteeth as shown in the diagram below(Fig1).If the depth of the wear, X, hasreached a value equal to 10% ofthe dimension Y, then the sprockethas reached the end of its life andneeds to be replaced. It’s worthpointing out that low cost, poorquality sprockets on most industrialapplications are a false economy.A good quality sprocket should lastthrough the life of several chainsbefore anything like the amount ofwear shown here will have occurred.If you’re fitting new chain don’tforget to correctly lubricate it. Thelubrication that’s on the chain whenit comes out of the box is onlysufficient to prevent corrosion duringtransit and to aid initial bedding in.If neither the chain nor the sprocketshave worn then check the chainisn’t excessively slack. If it is thenadjust the centre distances toincrease tension. This adjustmentshould result in the slack strand ofchain having a calculated degree ofmovement based on the horizontalcentre distance of the drive.Fig.1Fig.2This distance, A, in horizontaldrives, is calculated by dividing thehorizontal centre distance, C, byfactor K, which has a value of 25for smooth drives and 50 for shockdrives. For vertical drives A shouldbe approximately equal to half thechain pitch P. Care should be takento avoid over tensioning. (Fig2).Other ways of removing slack fromthe chain include using a jockeysprocket or, if it’s permissible todo so, the chain itself could beshortened.If there is no sign of wear orexcessive slack in the chain thenit’s possible that there is insufficientwrap around the drive sprocket.Particularly for large ratio drives it’spossible that the driver sprocket maynot have enough teeth to absorb theworking tension. If the drive cannotbe altered the solution is to fit ajockey sprocket to increase wrap.A final check is to look for a build upof foreign material in the sprockettooth gap. If any is present thenclean the sprockets teeth so thatthe chain can once again engagecorrectly.For reader enquiries, pleasemention PTR:Renold Chain UK SalesDerby Turn Building,Derby Road, Burton upon Trent,Staffordshire DE14 1RS,Tel: 01283 512940,Email: enquiry@renold.com,www.renold.comNew website andbranding for BearingsR.A. Rodriguez, the factoryrepresentative for KAYDON®bearings for more than 45 years,is inviting its customers in the UK,Ireland and Scandinavia to visit thebrand new KAYDON® website atwww.kaydonbearings.comAs well as being completely redesignedand restructured, thissite also introduces the new brandmessage, KAYDON® InfiniteBearing Solutions. The company’sPresident, Jeff Manzagol explainedthis is in response to customerfeedback. This research clearlydemonstrated the value customersattach to the company’s willingnessto go the extra mile to provide theoptimum bearing solution whateverthe complexity of application.Infinite also conveys the unrivalledscope of the overall KAYDON®programme. Within each standardproduct range the companyprovides a huge choice of producttypes, sizes, materials and options.It is also able to fulfil every orderrequirement from one-offs to manythousands.Following a thorough evaluation of allthe options open to them, Polestardecided that ERIKS’ unrivalledexperience in this field set them apartfrom the competition.The new contract will allow Polestarto benefit both commercially andoperationally from the relationshipwith ERIKS, who will bring value-addedactivity to the sites in areas such as5S stores management techniques,technical innovations, inventoryreduction and critical spares sharing.Karen Caruso, Group PurchasingDirector at Polestar commented:“We were looking to move away fromthe traditional customer/supplierrelationship and enter into a long-termpartnership with a business thatcould clearly demonstrate a goodtrack record in this field.”The new branding also embracesReali-Slim®, Ultra-Slim® and allcustom bearings and assemblieswhich are available in an extensivevariety of materials, separatoroptions, cross-sections, internalfit-up choices, lubricants, corrosionresistantoptions and contactangles.The main aim of the new KAYDON®Bearings website is to providemore information via a clean,easy-to-navigate design. Itfeatures an improved searchfunction, more in-depth productand market information as wellas comprehensive drawings,specifications and downloads.For reader enquiries, pleasemention PTR:R.A. Rodriguez28 Campus Five,Letchworth Business Park,Letchworth, Herts SG6 2JFTel: 01462 670044Fax: 01462 670880Email: info@raruk.comwww.rarodriguez.co.ukPolestar awards 5-yearUK procurement and storesmanagement contract to ERIKSPolestar, the UK’s leading print company, has entered intoa 5-year agreement with ERIKS Integrated Solutions, adivision of Europe’s largest industrial distributor. Under thenew agreement, Polestar is outsourcing to ERIKS their MROprocurement and stores management activity at their fivelargest sites in the UK.Paul Lynch, Sales Director at ERIKSIntegrated Solutions summed up: “Weare delighted to have been chosenby Polestar for this valuable contract.Our standardisation programs,product application advice and proveninventory reduction tools will leadto significant savings for Polestar,who, along with the majority of otherlarge UK manufacturers, are lookingto concentrate on their own corecompetences and outsource non-corefunctions to those who specialise.”Janet Kenyon, Group Projects Directorat Polestar added: “ERIKS wereable to show us a wide variety ofsuccessful contracts across a numberof industry sectors and that gave usthe confidence we needed to makethis major step”.

Stronger in conveyor chainthan ever beforeReputation, Experience, Excellence• Renold Ultimate Specification• Outstanding Performance• UK Fast Track Availability• Reliability Through Excellence• Strength through Quality• Made in the UKFor more information on how Renoldcan enhance your productivity call todayon +44 (0) 1283 512 940www.renold.com

12 PTR Mar/Apr 2011PTR NewsNew Power TransmissionCouplings last up to30X longerThe Sure-Flex® brand of elastomeric couplings is a bestseller in the US and for very good reason. It provides manyperformance advantages over other power transmissioncouplings of this type. Now Sure-Flex® is available from HucoDynatork whose distribution channels can assure its ex-stocksupply throughout Europe.Sure-Flex® elastomeric couplingsare the ideal choice where lowcost, high flexibility and vibrationdampening are primary concerns.Quick and easy installation isassured as the design has no bolts,gaskets, covers or seals; no specialtools are required. Alignment issimply checked with a straight edgeplaced against the outside of theprecision-machine flanges.Characterised by their clean,dependable and quiet performance,these products need neitherlubrication nor maintenance as thecomponents are wear-free and thedesign is immune from the ingressof abrasive dirt and moisture.Sure-Flex® couplings use a syntheticrubber or Hytrel thermoplastic flexelement to transmit torque – up to8.2 kNm – and to accommodateshaft misalignment. Indeed theyhave exceptional torsional flexibilityand their 4-way flexing action absorbsvirtually all types of shock, vibration,misalignment and end float.‘Fatigue test to failure’ resultsconfirm that the Sure-Flex® polymericflex elements last twice as long astheir nearest competitive couplingand up to 30 times longer than theremaining competitive models. As aresult these couplings are provingextremely popular in all manner ofrotating machinery across a widespectrum of industry.Typically Sure-Flex® couplings arefound in systems involving pumps,fans, blowers, compressors, mixers,electric motors and conveyors. Flexelements are available in a choice offour materials or compounds and invarious shape configurations to suitthe application. Spacer, bushed huband clamping hub designs completethe range, the most popular sizes ofwhich are available from stock.For reader enquiries, pleasemention PTR:Huco DynatorkMerchant Drive, Hertford,Herts SG13 7BLTel: +44 (0) 1992 501900Fax: +44 (0) 1992 509890email: sales@huco.comwww.huco.comCompact linear chain actuatorprovides push ‘n’ pullGood technical specification, an attractive price and soundapplication advice were the reasons why Birmingham-basedIndustrial Washing Machines (IWM) switched its allegianceto engineering component supplier, R. A. Rodriguez and itsFramo Morat Linear Chain system.This actuator was selected toprovide a robust and reliablepush-pull mechanism for a systemdesigned to wash and dry a widerange of plastic and metal bulktransport containers.IWM is a family business that offersa full range of standard washing andsanitising systems to manufacturersacross the industrialised world. Alarge proportion of the company’sbusiness however also comes fromits ability to design and manufacturespecial purpose equipment to satisfyunique washing needs. Indeed, itwas for a bespoke machine built tohandle containers up to 1000mmx 1200mm x 1200mm that FramoMorat Linear Chains were specified.The size these vessels require themto be loaded onto the machine’sreceiving station by fork lift truckwhereby the first of the Framo linearchain actuators pushes the item– weighing up to 300kg - into thewashing cabinet. Its counterpartat the other end of the machine isresponsible for pulling the cleanand dry vessel from the cabinet andonto a discharge platform, ready forunload by fork lift.“This actuator offered the necessarystrength to do the job and enabledthe design to remain compactand relatively simple to control,”explained Managing Director CarlHollier. “The chain and drive unitsare identical on the push/pullsystems with the only differencebeing the grabbers we designed forthe respective functions.”For R. A. Rodriguez, the additionof the Framo Morat Linear Chainto its range has proved a popularchoice for applications calling forlong strokes where space is at apremium. The special profile of thechain with interlocking fingers atone end enables it to be rolled upfor efficient storage in one directionand form a rigid thrust device in theother.The device provides high positioningaccuracy, constant stroke speedand shock-free motion, a vitalingredient for IWM as the smoothtransfer of the container into a veryprecise rotating drum is crucial tothe process. The compact nature ofthe actuator was also an importantfactor. As Carl Hollier concluded:“This allowed the machine footprintto remain compact and for us to useless material in its manufacture.The actuator certainly made animportant contribution to the costefficiencyof the project.”For reader enquiries, pleasemention PTR:R.A. Rodriguez,28 Campus Five,Letchworth Business Park,Letchworth,Herts.SG6 2JFTel: 01462 670044Fax: 01462 670880Email: info@raruk.comwww.rarodriguez.co.ukTransdev adds range of aluminiummachine frame profiles and accessoriesTransmission Developments, the leading mechanical power transmission specialist has expandedits product range with extruded aluminium profile rails and accessories for machine frame andsafety guard construction from the German manufacturer Paletti Profilsysteme GmbH.The new product line will complementTransdev’s three main divisionsof belting, chain and engineering/display plastics and is offered asa fully supported range for OEMsand machine builders as a flexibleand cost effective modular solutionfor belt conveyor frames, protectionenclosures and many other machinebuilding applications where traditionalwelded framing is becoming lessfavoured due to cost, aesthetic andhigh maintenance factors.Paletti Profilesysteme is a wellestablished global framingsystems designer and supplierwith manufacturing facilities inthe demanding German and NorthAmerican markets where its largerange of aluminium profiles andaccessories are used across standardand customised support structureapplications as diverse as aircrafttest stands to audio/visual displaysand from machine tool enclosures toresearch laboratory benches.The range is well supported withonline, PDF and hard copy productcatalogues as well as comprehensiveCAD files for straightforwardintegration into machine buildingdesign. A wide range of accessoriesinclude fastener systems for standardand heavy duty frame construction.For reader enquiries, pleasemention PTR:Ian Osborne:Transmission Developments Co(G.B.) Ltd.Dawkins Road, Poole,Dorset BH15 4HFTel +44 1202 675555Email: iano@transdev.co.ukFax +44 1202 677466www.transdev.co.uk

Local Mayor and Badmintonstar opens Brammer’s newPembroke Branch.Brammer, the UK’s leading distributor of industrialmaintenance, repair and overhaul (MRO) products andservices, has further expanded its nationwide networkwith the opening of a new Sales and Service Centre atPembroke Dock.GLOBAL ADVERT MASTER_GLOBAL 27/01/2011 08:59 Page 1Mar/Apr 2011 PTR 13Cllr Maureen Colgan, Mayorof Pembroke Dock, and Welshbadminton international JordanHart, joined Ian Ritchie, ManagingDirector of Brammer, to officiallyopen the new Pembroke facility.Based at Unit E, Nesta’s Court,London Road, Pembroke Dock,it is Brammer’s fifth branchin Wales. Its opening reflectssignificant growth in Brammer’sbusiness with local companiesincluding Chevron, Murco, SemLogistics, Dragon LNG, MainportEngineering, J E Lawrence & Sonsand Mustang Marine.Brammer Pembroke stocks anextensive range of bearings,seals, mechanical and electricalpower transmission, hydraulics,pneumatics and generalmaintenance products fromleading manufacturers, with rapidaccess to many thousands morethrough Brammer’s NationalDistribution Centre.The opening event was attendedby Brammer customers fromacross south-west Wales.Ian Ritchie commented: “Ourcustomer base in south and westWales continues to grow and thenew Pembroke Sales & ServiceCentre will enable us to furtherenhance our service to them.”“We remain committed todeveloping our network of localbranches across the UK andthis is just the first of severalbranch openings and expansionsscheduled for 2011.”The branch, is managed by DavidLewis.“Cross reference service available . . .. . . why not give us a call with your requirements”• Sole uk stockist of Rexroth Bosch Ballscrew assemblies.• Fast and efficient machining service available.• Full range of Linear motion products and precision bearingsfrom stock and on short delivery times.ISO 9001:2000 approved and UKAS 229. Official distributors for:TEL: +44 (0)1527 894 228 FAX: +44 (0)1527 894 194E: info@global-bearings.co.uk www.global-bearings.co.ukGLOBAL BEARINGS AND TRANSMISSION LTD, SAMBOURNE,REDDITCH, WORCS B96 6ES.Engineering in Motion2:1 RATIO3:2 RATIOThe Slide-Rite®, like the classic Float-A-Shaft®, is auniversal right angle gearbox. It consists of two 45˚helical gears that mesh at right angles, designed to turnpower at 90˚. It can be operated in either direction andcan slide axially along the drive or driven shaft.SLIDE-RITE®CRSLIDE-RITE®CRCOMPACT SIZEThe Slide-Rite® gearbox’s uniquie floatingdesign maintains perfect shaft alignmentallowing for easy installation.A solid one-piece aluminium housing sealsthe gears from outside contaminants,providing for smooth operation in even theharshest industrial environments.1:1 METRIC1:1 METRICCOMPACT SIZEIn association withRobert Cupitt LimitedTel: 01908 563063 Fax: 01908 562910Email: sales@robertcupitt.co.ukwww.robertcupitt.co.uk

POWERTRANSMISSIONFrom a Sin2 QualityProductV PulleysV BeltsRollerChainsCouplingsSprocketsTaperBushesQualityAssuranceMEDWAY ®Power TransmissionM.P.T. HOUSE BRUNSWICK ROADASHFORD KENT +44 (0) 1233 663340www.medwaypt.com sales@medwaypt.com

gle SourceAssuredRangesLINKAGECOMPONENTSRodEndsSphericalBearingsLinkagesBallJointsClevisesBallStudsQualityAssuranceCOBBS WOOD INDUSTRIAL ESTATETN23 1EL U.K. +44 (0) 1233 664440MEDWAY ®Linkages sales@medwaylinkages.comwww.medwaylinkages.com

16 PTR Mar/Apr 2011Special Feature By Mark Howard of Zettlex Limited.Accurate Measurementof Shaft SpeedMeasuring or controlling the speed of most rotating shafts isstraightforward but significant problems can arise as soon as we start totalk about accuracy. Mark Howard from Zettlex Ltd. examines the issuesinvolved and suggests some simple solutions to longstanding problems.There is a famous questionthat sits at the crossroads ofgeography, mathematics andphilosophy: ‘How long is thecoastline of Britain?’ At firstglance, a pretty straightforwardquestion – just think back to yourgeography textbook and dredgeup the correct number. Mostpeople say it’s around 11,000miles – estimated from theperimeter of a triangle formed byDover, John O’Groats and Land’sEnd with a ‘fudge factor’ addedon for Wales.For pub quizzes, this answermight be good enough, but is itaccurate? Well, you could get allthe ordnance survey maps andtrace the coastline with a pieceof string and eventually produce asecond estimate.Certainly, the answer will bedifferent to the first, but is itmore accurate? The snag is howdo you measure? Where do youtrace the string for an accuratemeasurement? How far up therivers do you go? Do you traceall the way to the source of theriver and then back along theother bank? Do you measure thecoastline at high tide or low tide?Do you trace in and out of everyrock? At an extreme you would bemeasuring around every pebbleand every grain of sand, to suchan extent that the answer is muchlarger than first expected. Sothe truly accurate answer to thequestion is – it depends on howyou measure it.The same kind of bizarrelogic applies to shaft speedmeasurement. If you simplyneed a rough idea of how manyrevolutions a shaft completesin one minute, it’s prettystraightforward and even thecrudest of measuring systemsshould deliver a fair answer.But what happens when youneed to know what the speedis, say, every millisecond andthen control the actual speed sothat this corresponds to a tightlytoleranced set point?To borrow some terminology fromthe old vinyl record turntables,speed variations can bedescribed as ‘wow’ and ‘flutter’.Wow typically refers to speedvariations over relatively longperiods and flutter refers to speedvariations over relatively shortperiods, typically less than onceper revolution. Often, both areimportant and the requirementsto tightly control both wow andflutter are common in manysectors of industry: CNC machinetool motion control; aircraft flightcontrols; radar antennae; andweapons control systems. Suchcontrol engineering issues donot just relate to complex motioncontrol but also to driving shaftsat a constant speed (especiallywhen there are variations in load).When one approaches the issueof a shaft that must rotate attruly constant speed, then thesame logic that has us measuringaround the grain of sand willquickly tell you that to get a shaftto rotate at a perfectly constantspeed is – in the extreme –impossible.One common problem is thatthe shaft speed is not measureddirectly but indirectly. A typicaldrive system will include a shaft,driven by a gearbox or pulleys,a motor and a motor encoder.Readings from the motor encoder– usually a stream of pulses –are used to calculate the speedof the shaft itself. In turn, theoutput from the encoder is fedback (in a servo loop) to themotion controller, which adjuststhe power fed to the motor toincrease or decrease speed.A significant problem is thatalthough the system may besomewhat mechanically coupled,what’s going on at the motor isnot the same as what’s going onat the shaft. For example, anygears in between the encoderand shaft will not be perfect andare subject to wear, backlash,thermal expansion/contraction,mechanical tolerances andclearances. Further effectsinclude mechanical friction(especially ‘stiction’ at lowerspeeds), variations in lubricantproperties, mechanical twist dueto torque, shaft bending, shaftconcentricity and so on.To determine what is actuallygoing on at the output shaftneeds an encoder on theactual shaft itself. In reality,this can prove both difficultand expensive, especially if theshaft is large or where spaceconstraints are tight. A furtherdifficulty arises when the shaftspeed is low, since accuratespeed control will dependon sufficient measurementinformation being producedper revolution, to give sensibleor timely control of the motor.A measuring device on theshaft with, say, 100 counts perrevolution is not going to permitaccurate speed control of a shaftthat is rotating at 1 rpm, sincethe measurement will only beupdated every couple of seconds.To control shaft speed accuratelyat low speeds, the greater theneed for high resolution angleinformation at the output shaft.There are 3 main methods formeasuring shaft position orspeed: magnetic, optical andinductive. The most commonis magnetic – usually Halleffect – but this is not usedin high accuracy or low speedapplications since it lacks theresolution, whilst magnetichysteresis or temperature effectswill degrade measurementperformance.Optical encoders offer goodmeasurement performance butare delicate and unreliable inharsh conditions. Optical sensorsare typically rated to only modesttemperature ranges (-20 to +70Celsius is typical); they can failbecause of foreign matter andharsh mechanical vibration orshocks can damage the opticalgrating.Inductive devices such asresolvers and synchros arethe traditional choice for highreliability or harsh environments,including military, oil and gas,aerospace, and heavy industrialapplications. Whilst thereputation of inductive devicesfor reliability and accuracy iswell founded, they are bulky,heavy and expensive, especiallyin the larger sizes or ‘A class’measurement performance.A new generation of inductivetechnique now enables moreand more people to chooseinductive devices for mainstreamcontrol applications. Rather thanthe traditional wire windings orspools, this new generation ofdevices uses printed, laminarconstructions, which dramaticallyreduces the bulk, weight and costcompared to traditional devices.At the same time, accuracyincreases and the possibilityof a wide range of shapes andsizes of sensor opens up. Inparticular, large bore devicescan be provided without massiveincreases in cost. In turn, thismakes direct mounting to theshaft more practical and hencemore accurate. Furthermore, theneed for high precision gearboxesis eradicated and generally thegearbox can be derated – allowingadditional cost reductions.For reader enquiries, pleasemention PTR:Mark Howard,Zettlex UK LtdNewton Court,Town Street,Newton, CambridgeCB22 7PETel: +44 (0) 1223 874 444Fax: +44 (0) 1223 874 111Email: info@zettlex.comwww.zettlex.com

PTR ProductsNew from Micromech is the NANOZ ? novel air bearing lift stageJust launched with a patentpending is the Alio NANO Z? a novelair bearing lift stage with TRUENANO POSITIONING? and to helpengineers and scientist further,it has been designed with a largeopen centre.It uses linear servomotors andvariable counterbalance to exceedprecision application needs suchas wafer inspection, where heavyceramic wafer plates need electricaland vacuum lines fed though thepositioning stage.Other applications such as TRUENANO? metrology, optical inspectionand laser machining are performedat accuracy levels less than100nm without the concern ofballscrew thermal growth, wedgelifts tip and tilt, non-repeatabilityand inaccuracies of other legacydesigns.The NANO Z? clever design almosteliminates pitch, yaw and roll overthe 24mm travel range with betterthan 90nm of repeatability in thestandard unit. Optional extremeprecision Nano Z? will deliver anamazing 10nm of repeatability withbetter than 50nm of accuracy.The NANO Z? footprint is optimisedfor compact size due to the novelair-bearing and linear motor designthus it can easily sit on top orinverted on an XY motion system.For metrology or other processesthis means no increase in themotion system’s overall verticalfootprint or the need for specialmounting compared to other designswhere the Z axis lifts with motorsand screw that need four times thevertical distance.For reader enquiries, pleasemention PTR:Stirling MorleyMicromech Ltd,5-8 Chilford Court, Rayne Rd,Braintree, Essex CM7 2QSTel: 01376 333333Fax: 01376 551849Email: stirling@micromech.co.ukwww.micromech.co.ukvisit our website:rarodriguez.co.uk...to request ourcatalogueOur KHK range coversover 9300 gear types.Standard range includes:Spiral bevel gearsSpecials and modified gearsEven specials carry a short lead time.Hardened and stainless steel gears and racksInjection moulded spur and bevel gearsR. A. RODRIGUEZ (UK) Ltd.TURNING IDEAS INTOENGINEERING SOLUTIONSTel: 01462 670044 Fax: 01462 670880Email: info@raruk.comMar/Apr 2011 PTR 17Ex-stockPrecision in the ExtremeInductive angle encodersthat tick all the boxesAccurateAbsoluteRobustLarge boreCompactLightweightEconomicalVisit us on-line at www.zettlex.com

...If you don’t see what you are looking for,or require further information regardingany of our product ranges just askand we will be happy to helpand remember...NPX CouplingJaw CouplingFFX CouplingClampingElementsnever a problem always a...RPX CouplingSelf LubeBearingUnitsPower Transmission Components- Precision Products from aQuality Manaufacturerwww.challengept.comChainCouplingHRC CouplingTaper BorePulleysBearingsSprocketsMi-LockPulleysTimingPulleysVee BeltsTorqueLimitersTaper BushesSynchronousBeltsBolt on HubsWeld on HubsCRE BeltsAll types ofChainElectric MotorsMotorSlide BasesShaft MountedSpeed ReducerGeared Drives

Rotalink’s new low cost speedand direction controllerAs part of its DC motor controlrange, Rotalink has developed a lowcost speed and direction controllerfor motors up to 1.5 A that featuresPulse Width Modulation for highquality speed control with an onboardpotentiometer for smoothand precise adjustment. The boardmounted unit, measuring just 63 mmx 46 mm, has a wide user supplyrange from 7 to 24 VDC with thesingle-turn potentiometer set at 50%for zero speed. The unit is aimed atOEMs and users who wish to includea simple yet practical speed anddirection control for Rotalink motorswith a single source supply, andwithout the unnecessary burden oftheir own design and manufacture.The new speed and directioncontroller may be used acrossRotalink’s extensive rangeof brushed DC motors whichincludes standard ferrite and highperformance rare earth magnetsystems as well as heavy casedesigns. The controller provides aconvenient control solution as partof Rotalink’s strategy that combinesbrushed and brushless DC motorsChain manufacturer iwis introducesanti-backbend chains. Thesechains, which are flexible in onlyone direction, are used for pushingloads and transmitting forces overlonger distances without the needfor a guidance system. Developedto specific customer needs, antibackbendchains are used throughoutthe world in applications such asmedical devices, transport systems,building services engineering andmachine tools.Chain specialist iwis offers antibackbendchains under the iwis andElite brands. Compact in design, thechains are suitable for transmittingtensile and compressive forces, anddo not need a guidance system evenover longer distances. Anti-backbendchains perform a similar function aslinear drives, eliminating the need foran endless, circulating chain drive.The side- and backbend capability isindividually adjustable. The chainscan be made in a range of sizes andconfigured for various drive concepts,including for larger strokes.In its own research and developmentfacility, iwis has been developingas well as AC motor technologieswith its own innovative gearbox,motor feedback and motion controls.Rotalink provide competitiveminiature power transmissionsolutions of up to 28 Nm outputtorque for rotary motion and to morethan 50 N force for linear motion.The full range includes a wide choiceof planetary and spur gearboxesthat feature standard or enhancedpolymer gears on sintered or ballbearings. Rotalink manufacturea unique range of ovoid stylegearboxes with extremely high torqueoutput that combine spur gears withplanetary stages using ultra-polymermaterials technology.Rotalink also manufacture a range ofincremental and absolute feedbackdevices as well as motion controlsfor DC motors. The Red Drivecontroller is available for brushedand brushless motors and featureseasy-to use drag-and-drop flow chartprogramming for motion control andcombined TTL logic I/O.For reader enquiries, pleasemention PTR:Zena TilyardRotalink LimitedCropmead, Crewkerne,Somerset TA18 7HQTel: +44 (0) 1460 72000Fax: +44 (0) 1460 74278Email: zena@rotalink.comwww.rotalink.comAnti-backbend chains transmittensile and compressive forceanti-backbend chains for 15 years,continually incorporating its latestfindings about the factors affectingchain geometry and assemblytechniques on the chain’s technicalcharacteristics. The chains aredeveloped in close cooperationwith users and can be fabricatedat various production sites. Themanufacturer’s services include wear,fatigue strength and fracture loadanalyses. Quality is ensured throughin-house developed test methods andequipment.For reader enquiries, pleasemention PTR:iwis drive systems Ltd.Unit 8C Bloomfield ParkBloomfield Road, Tipton,West Midlands DY4 9APTel.: 012 15213600Fax: 012 15200822Email: salesuk@iwis.comwww.iwis.comMar/Apr 2011 PTR 19Brushed or brushless DCmotor gearboxes withthe option of dualchannel incrementalencoders.Single or multi rotation10 bit per revolutionabsolute shaft encoders.

20 PTR Mar/Apr 2011A B C12 hrsSalt Spray TestThe salt spray test is a standardized test method used tocheck corrosion resistance of materials. Salt spray test isan accelerated corrosion test that produces a corrosiveattack to the tested samples in order to predict therecorrosion resistance.24 hrsA B CThe appearance of corrosionproducts (oxides) is evaluatedafter a period of time. Testduration depends on the corrosionresistance of the material the morecorrosion resistant the materialis, the longer the period in testingwithout showing signs of corrosion.The standard testing period for ballbearings is 120 hours.Salt spray testing is popularbecause it is a well standardizedand reasonably repeatable.Nevertheless, salt spray test iswidely used in the industrial sectorfor the evaluation of corrosionresistance of materials or parts.Tests are performed with astandardized 5% solution of NaCl,known as NSS (neutral salt spray).Results are represented generallyas testing hours in NSS withoutappearance of corrosion products(e.g. NSS acc. to ISO 9227). Thesalt spray test procedure involvesthe spraying of a salt solutiononto the samples being tested.This is done inside a temperaturecontrolledchamber (in this case aconstant +35C°). The solution is a5% salt (sodium chloride ? NaCl)solution, known as NSS (neutral saltspray). The samples under test areinserted into the chamber, followingwhich the salt-containing solutionis sprayed as a very fine fog mistover the samples. The temperaturewithin the chamber is maintainedat a constant level. Since thespray is continuous, the samplesare constantly wet, and therefore,constantly subject to corrosion. Totest the corrosion resistance of aCeramic Coated Bearings (NCC) wehave exposed a sample to a 72 hrssalt spray test. The sample was astandard chrome steel bearing withCeramic Coating, and compared itto a standard chrome steel bearingsand stainless steel bearings. Thethree samples tested were asfollows:A = NCC61802 (Ceramic CoatedBearing)B = 61802 a standard chromesteel bearing 100Cr6.C = S61802 a standard stainlesssteel bearing AISI 440C.The test result shows that theCeramic Coated Bearing has ahigher corrosion resistance thanchrome steel and stainless steelbearings. (See right)Ceramic coating does not changethe characteristics of the metal,the Ceramic particles penetratethe metal surface and form aceramic film on the material . Thisconcept combines the advantagesof traditional bearings and theadvantage of ceramics.The advantage of Ceramic CoatedBearings is that bearings can becoated that are not available instainless steel like large bearingsor applications that require thehigher hardness level of Chromesteel compared to stainless steel.As Chrome Steel bearings havea much higher load rating thanStainless steel bearings. Theapplication range of NCC bearingsis width.The key advantages of NCCbearings are:• Outstanding rust preventions,approx 20 times higher thanChrome steel• Outstanding self-Lubrications• Outstanding high and lowtemperature resistance• Low friction• Good load capacity, shockresistance• Outstanding wear resistanceA B C48 hrsA B C72 hrsA B C96 hrsA B C120 hrs

CLIMAX CHAINSWhy settle for Chop Suey when you can have Roast Beef!JOHN KING CHAINSMANUFACTURINGCHAINS SINCE 1926Widest programme of products of any manufacturerworldwide including - engineering class, cast link,forged fork link, welded steel and polymeric chains.Global operation with manufacturing in the UK and USand warehousing in distribution in Canada, Africa,South America and Central Europe.Largest stock of Conveyor chains in the UK.Fully equipped technical support with in house expertisein metallurgy, chain design and application.State of the art manufacturing with laser production andCNC machining and assembly.In house sprocket production up to 3 metres in diameter.Solid, split design and segmental construction.All product supported by ISO 9000 management qualitysystem with bi-annual audits from BSI.SELL YOUR PRODUCTS BASED ON QUALITY AND TECHNICAL MERIT.MAKE JOHN KING CHAINS YOUR FIRST CHOICE CONVEYOR CHAIN SUPPLIER.REG NO: FM77342JOHN KING CHAINSFor more information on JOHN KINGS Chains contact us:New Climax Works, Lancaster Business Park, Sherburn-in-Elmet LS25 6NSEmail: sales@johnkingchains.co.uk www.johnkingchains.comTel: 01977 681910 Fax: 01977 681899

22 PTR Mar/Apr 2011MclennanPosiStepHalfVert_92x255:Mclennan Half Page Vertical 01/04/2011 11:55 Page 1moti on andmechatronicsNEW!PosiStepSingle Axis IntelligentMicrostepping DriveThe new PosiStep is aplug and play intelligentmicrostepping drive thatcombines a highperformance stepper motor drive, positioncontroller, optional feedback and AC power supplyas a cost effective integrated solution for a widerange of applications that require a single-axisdriven mechanism.brushless DC motorsbrushed DC motorsac & dc servo motorssynchronous motorsstepper motorsspur gearboxesplanetary gearboxesrotary encoderslinear encodersstepper and servo drivesmotion controlscustom engineeredmotion and mechatronicsystemswww.mclennan.co.ukTel: +44 (0) 8707 700700Email: sales@mclennan.co.ukMclennan Servo Supplies LtdUnit 1, The Royston Centre, LynchfordLane Ash Vale, Surrey, GU12 5PQVersatile solutionsfor demandingapplications from NKEBearing manufacturer NKE AustriaGmbH introduces bearing solutionsfor industrial gearboxes at thisyear’s Motion, Drive and Automationin Hannover. In addition tocylindrical roller bearings, the typicalgearbox bearings include sphericalroller and taper roller bearingsas well as angular contact anddeep groove ball bearings. Specialbearings manufactured to customerspecifications can also be supplied.NKE’s gearbox bearings are used,for example, in general mechanicalengineering, in mining and conveyingsystems, in heavy machinery, in theiron and steel industry and in windturbines.Rolling bearings in industrialgearboxes must withstandarduous duty. NKE supplies awide range of bearing solutionsfor various operating conditionsand requirements in industrialapplications. A speciality of theAustrian bearing manufacturer aresingle-row cylindrical roller bearings,whose application possibilities arealmost unlimited. NKE producescylindrical roller bearings in morethan 3,000 different designsand versions, suitable for highradial loads and moderate to highspeeds. Made from the purestrolling bearing steel, the bearingshave an exceptional lifespan, whilethe raceways’ high surface qualitykeeps the operating temperaturedown and reduces wear. Theinner and outer rings of thesecylindrical roller bearings can befitted separately, which simplifiesinstallation. Efficient and reliablein operation, the bearings can beproduced at short lead times inNKE’s factory in Steyr, Austria.In addition to cylindrical rollerbearings, NKE’s standard portfolioof industrial gearbox bearingsincludes spherical and taperroller bearings as well as angularcontact and deep groove ballbearings. Special bearings forgearboxes are developed andmanufactured in close cooperationwith their users. NKE providescomprehensive technical servicefor gearbox manufacturers, whichcovers consulting, design supportand analysis, and training. All NKEbearings are subjected to stringentquality procedures and are testedusing state-of-the-art proceduresand equipment.For reader enquiries, pleasemention PTR:NKE AUSTRIA GmbHJanet Mo, MarketingIm Stadtgut C4A-4407 Steyr, AustriaTel: +43 7252 86667 345Fax: +43 7252 86667 59Email: j.mo@nke.atwww.nke.atNews in briefThe world’s smallestbrushless motor withintegrated motion controlFAULHABER represented by EMShave added motion control to theirBX4 Brushless DC Servomotor seriesmaking it the world’s most compactdrive with integrated motion control.Super precision bearingsfor improved opticalguidance systemsCustom-designed, super precision ballbearings from The Barden Corporationcan play a vital role in ensuring thestability and reliability of optical guidancesystems and stabilised camera mounts.Ondrives introduces castironspur gearsOndrives has extended its precision spurgear range by adding cast iron (GG25)to the variety of materials available asstandard.

WE CAN FULFILLALL YOUR INDUSTRIALREQUIREMENTSAND NEEDSWorld leading products from Hayley Group®Shelah Road, Halesowen, West Midlands B63 3XLTel: 0121 550 9555 Fax: 0121 550 9910Email: industrial@hayley-group.co.ukwww.hayley-group.co.uk

24 PTR Mar/Apr 2011Silverthin Bearing Group launches anew range of slewing bearings withthe help Carter ManufacturingSilverthin Bearing Group launchesa new range of slewing bearings,all of which are available from theirEuropean Master Distributors CarterManufacturing Limited.Silverthin offers a broad slewingbearing selection with multipleconfigurations available including:Single and Double Row Ball, ThreeRow Roller, Cross Roller Sealed andUnsealed Internal Geared, ExternalGeared and Non-Geared Clearance orPreloaded.The Silverthin slewing bearing rangeare manufactured in several worldwideplants designated to produce qualityand cost effective slewing solutionsin sizes from a few inches to 25 footdiameter. Flexible manufacturing,inventory management and quotingsystems allow Silverthin to providecustom bearing designs that meetspecific customer requirements in atimely fashion.Silverthin manages slewingspecification, manufacture andfulfilment from their ISO certifiedPreston, USA facility that producesbearings to industry standardtolerances.Silverthin’s focus on flexibility is theCompany’s most compelling attributeas it allows them to meet very specificcustomer requirements quickly andcost effectivelySilverthin provides a complete lineof slewing ring turntable bearingsand manufactures a wide range ofthin section ball bearings for thecommercial, industrial, aerospace,and military markets.Custom bearings are engineeredto serve the needs of their diversecustomer base. Silverthin andCarter offer application engineeringservices to help customers selectthe ideal bearingand fit fortheir specificrequirements.Other servicesinclude stockingprograms,bearing relubrication,failureanalysis, andfield servicesupport.For readerenquiries, pleasemention PTR:Carter Manufacturing LimitedUnit 7 Isis Court, Wyndyke Furlong,Abingdon Business Park,Abingdon OX14 1DZTel: 01865 821720Fax: 01865 821693Email: sales@carterbearings.co.ukwww.carterbearings.co.ukOndrives new rangeof Bevel GearboxesA new range of smallbevel gearboxes hasbeen added to thealready extensive rangeof gear reducers offeredby precision engineeredcomponents and gears/gearboxes manufacturer,Ondrives Ltd.They start at 0.035Nmtorque capacity and goup to 4.032Nm as standard. 1:1ratio is standard throughout therange which includes 3 sizes rangingfrom 34.925mm outside diameterto 63.5mm. All are made from greenanodised aluminium housings andhave 303 stainless steel shafts,sealed ball bearings (2 per shaft)and are greased for life with coldtemperature (-40ºC) grease optional,with -20ºC to +80ºC being thestandard operating range. Maximumrotational speed for all versions is2000rpm and 3000rpm for thoseboxes with hardened spiral bevels.Backlash figures vary from 1º to0.5º for those units with polishedhardened steel gears and spiralbevels.“The gearboxes are available topurchase now in the brand newgears and gearboxes cataloguelaunched February 2011 as well asonline. Visit us now to check outmore specific details, as well asthe all important price and deliverytime”, states MarketingManager AmandaLaughton. “The websitehas recently beenupdated with hundredsof new productsincluding a wide range ofstandard sprockets andchains to suit makingthe power transmissionside of our businessa particularly strongcompetitor within this market”, andconcludes; “We hope customersfind what they are looking for withinour vast product range, much of itmanufactured in-house by Ondrives,but if you cannot find what you arelooking for, please remember wehave a large technical sales teamavailable to help with any of yourspecial requirements and this isall backed up by state-of-the-artdrawing and CNC departmentswhich are constantly receiving heavyinvestments to ensure Ondrivesare the best gear and gearboxmanufacturer that they can be”.For reader enquiries, pleasemention PTR:Ondrives LtdFoxwood Industrial Park,Foxwood Road,Chesterfield S41 9RNTel: 00 44 1246 455500Fax: 00 44 1246 455522Email: Amanda.laughton@ondrives.comwww.ondrives.comOptical micrometers enablequality inspection of pulleysOptical laser-based sensors fromMicro-Epsilon are playing a vitalrole in inspecting the quality ofmanufactured pulleys. The highspeed and high resolution of thesensor enables the tip diameterof the pulleys to be measuredaccurately and rapidly in two planes.Pulleys are used in a wide varietyof applications and are required tomeet strict manufacturing qualitystandards. As pulleys often needto operate in applications wherehigh torques and rotational speedsare present, any deviations in thegeometrical dimensions of the pulleyduring manufacture can very quicklylead to defects in the shaft bearingsduring operation. Dimensionalstability and centricity are thereforecritical quality factors. This is whypulleys need to be tested thoroughlyafter they are manufactured.Measurement technology serviceprovider QS-Grimm has developeda special purpose measuringsystem for inspecting the qualityof manufactured pulleys. Severaltesting stations have been installedto inspect the quality criteria ofmanufactured pulleys.These measuring stations eachcomprise four optoCONTROL2500 optical micrometerssupplied by Micro-Epsilon. Thesesensors measure the geometricaldimensions and verify the diameterof the pulleys in two locations.Two sensors each record the tipdiameter on a plane to the leftand right of the pulley. Due totheir ability to rapidly evaluatethe measurement data in oneplane, the diameter of the tip canbe determined accurately to aresolution of 0.1µm.optoCONTROL 2500 is a laserbasedmeasuring system withintegrated high resolution CCDcamera. The ThruBeam micrometermeasures the dimension of anobject or the position of an edgeby using the shadow-castingprinciple. The data obtained withvarious, selectable measuringprogrammes, is output via analogueand digital interfaces. Due to itshigh measuring speed, outstandingaccuracy and excellent resolution,the laser micrometer is idealfor precision measurement andinspection tasks on moving productsin production environments.The optoCONTROL 2500 consistsof a sensor unit and a controller.The sensor unit comprises a laserlight source (transmitter) and aCCD camera (receiver). A parallellight curtain is produced with thelaser light source. The CCD arrayin the receiver measures thecontour formed by shadow castingof the measurement object withhigh accuracy. The sensor unit iscontrolled and evaluated by anintelligent controller with graphicaldisplay for operation and display ofmeasured values.For reader enquiries, pleasemention PTR:Chris JonesManaging DirectorMicro-Epsilon UK LtdUnit 1, Pioneer Business ParkNorth Road, Ellesmere PortCheshire CH65 1ADTel: +44 (0) 151 355 6070Fax: +44(0) 151 355 6075Mobile: 07884 363739News in briefSKF introduces handheldvibration analysis toolThe SKF Microlog Advisor Pro is aversatile handheld vibration analysistool used for condition-based monitoringand preventative maintenance.Safety encoder suitablefor drive productsThe RVK58S safety sine/cosine rotaryencoder from Pepperl and FuchsDrehgeber is suitable for general-purposeuse in a variety of drive solutions.Variohm expandsmotorsport sensor rangeVariohm Eurosensor has addedhigh-performance EGT and tuningtemperature sensors to its motorsportsensor range following a distributionagreement with US thermalmeasurement specialist Zip Sensors.Sealed belt drive hasstiffer beamHepcoMotion’s new SBD 30-100XLthanks to a beefier aluminium beam thatis 2.5 times stiffer than its standardcounterpart. It’s ideal for any applicationwhere underside support is limited oreven non-existent.

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26 PTR Mar/Apr 2011Nano-CeramicCoated Bearingsthe alternative to Stainless Steel Bearingsmember of the ZEN group✓ Enhanced wear✓ Outstanding corrosion resistance✓ Self lubricating✓ Low friction✓ High load capacity and shock resistanceBy penetrating the material surfaces using up to date Nano-Ceramic technology,the material characteristics change dramatically, thus increasing the hardness,durability and corrosion resistance of the bearing. NCC Bearings are analternative for applications where stainless bearings are not available.For more information call +44 (0)1227 793334BEARINGS FOR YOUR FUTUREPBI International, Unit 2 Tyler House, Tyler Way, Whitstable, Kent CT5 2RSTel. +44 (0)1227 793334www.ball-bearings.bizSOLE UK DISTRIBUTOR

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