Caged Ball LM Guide Model SSR

www.thk.ru thk-mail@ya.ru Тел. (495) 727-22-72Compliant withNew Accuracy StandardsCaged Ball LM GuideBall Cage EffectCompact, Radial TypeSSRCATALOG No.212-12E

Ball Cage EffectThe early forms of ball bearings were full-ball types without ball cages. Friction between balls caused loudnoise, made high-speed rotation impossible and shortened the service life. Twenty years later, a Caged Balldesign was developed for ball bearings. The new design enabled high-speed rotation at a low noise level,and extended the service life despite the reduced number of balls used. It marked a major development inthe history of ball bearings.Similarly, the quality of needle bearings was significantly improved by the caged needle structure.With cage-less, full-ball types of ball bearings, balls make metallic contact with one another andproduce loud noise. In addition, they rotate in opposite directions, causing the sliding contact between twoadjacent balls to occur at a speed twice the ball-spinning rate. It results in severe wear and shortens theservice life.In addition, without a cage, balls make point contact to increase bearing stress, thus facilitatingbreakage of the oil film. In contrast, each caged ball contacts the cage over a wide area. Therefore, the oilfilm does not break, the noise level is low and balls can rotate at a high speed, resulting in a longservice life.Long Service Life and Long-termMaintenance-free OperationSuperbly High SpeedLow Noise, Acceptable Running SoundSmooth MotionLow Particle Generationwww.thk.ru thk-mail@ya.ru Тел. (495) 727-22-72Rotary ball bearingCaged Ball LM GuideConventional structureAdjacent balls contact each otherat a point. As a result, contactstress is high and the oil filmbreaks due to friction.The service life becomes shorter.BallCaged Ball structureThe service life is prolonged due to the elimination of wear causedby friction between balls.The absence of friction between balls results in reduced heatgeneration during high-speed rotation.The absence of friction between balls eliminates collision noise ofthe balls.The even spacing of the balls enables them to move smoothly.Retention of lubricant in the ball cage ensures a long service life.Oil-film contactWith the Caged Ball LM Guide, the use of a ball cageallows lines of evenly spaced balls to circulate, thuseliminating friction between the balls.In addition, grease held in a space between the ballcirculation path and the ball cage (grease pocket) isapplied on the contact surface between each ball andthe ball cage as the ball rotates, forming an oil film onthe ball surface. This minimizes the risk of oil-filmbreak.High bearing stress due toball-to-ball contactConventional structureCaged Ball structureExtremely low bearing stressachieved with ball-to-cage contact

www.thk.ru thk-mail@ya.ru Тел. (495) 727-22-72Compact, Radial TypeCaged Ball LM GuideSSRLM blockEndplateEnd sealLM rail90BallBall cage30 Cross sectionStructure of Model SSRBalls roll in four rows of raceways precision-ground on an LM rail and an LM block, and ball cages andendplates incorporated in the LM block allow the balls to circulate.Use of the ball cage eliminates friction between balls and increases grease retention, thus to achievelow noise, high speed and long-term maintenance-free operation. Compact, Radial TypeThe compact design with a low sectional height andthe ball contact structure at 90make SSR an optimalmodel for horizontal guides. Superb Planar Running AccuracyUse of a ball contact structure at 90in the radialdirection reduces displacement in the radial direc-tionunder a radial load and achieves highly accurate,smooth straight motion. Self-adjustment CapabilityThe self-adjustment capability through front-to-frontconfiguration of THK's unique circular-arc grooves (DFset) enables a mounting error to be absorbed evenunder a preload, thus to achieve highly accurate,smooth straight motion. Stainless Steel Type alsoAvailable as StandardA stainless steel type with its LM block, LM rail andballs all made of stainless steel, which is superblycorrosion resistant, is also available as standard.

www.thk.ru thk-mail@ya.ru Тел. (495) 727-22-72SSR OutlineModel SSR - Product OverviewWith a low mounting height, compact design and a large radial load capacity, this model is optimal forhorizontal guides.Major applications Grinding machine / semiconductor manufacturing machine / printed circuit boarddrilling machine / 3D measuring instrument / chip mounter / medical equipmentModel SSR-XWModel SSR-XVWith this type, the LM block has asmaller width (W) and tapped holes.This type has the same crosssectionalshape as SSR-XW but has ashorter overall LM block length (L).SSR 15XWSSR 15XWMSSR 20XWSSR 20XWMSSR 25XWSSR 25XWMSSR 30XWSSR 30XWMSSR 35XWSSR 15XVSSR 15XVMSSR 20XVSSR 20XVMSSR 25XVSSR 25XVMModel SSR-XTBSince the LM block can be mountedfrom the bottom, this type is optimalfor applications where through holesfor mounting bolts cannot be drilledon the table.SSR 15XTBSSR 20XTBSSR 25XTB

www.thk.ru thk-mail@ya.ru Тел. (495) 727-22-72SSR OUTLINEModel SSR - Product OverviewRated Loads in All DirectionsModel SSR is capable of receivingloads in four directions: radial,reverse radial and lateral directions.Its basic dynamic load rating isrepresented by the symbol in theradial direction indicated in the figureon the right, and the actual value isprovided in the specification table *1 forSSR. The values in the reverse radialand lateral directions are obtainedfrom Table1 below.Reverse-radial directionLateraldirectionRadial directionLateraldirection*1: Specification table formodel SSRModel SSR-XW pages 9-10Model SSR-XV pages 9-10Model SSR-XTB pages 11-12Table 1 Rated Load of Model SSR in All DirectionsDirectionRadial directionReverse radial directionLateral directionBasic dynamic load ratingCCL=0.50CCT=0.53CBasic static load ratingC0C0L=0.50C0C0T=0.43C0Equivalent LoadWhen the LM block of model SSRreceives a reverse radial direction anda lateral direction simultaneously, theequivalent load is obtained in theequation below.PEXPLYPTPE :Equivalent load (N)⋅Reverse radial direction⋅Lateral directionPL :Reverse radial load (N)PT :Lateral load (N)X, Y:Equivalent factor (see Table 2)Table 2 Equivalent Factor of Model SSRPEEquivalent load in reverse radial directionEquivalent load in lateral directionX1.0000.866Y1.1551.000

www.thk.ru thk-mail@ya.ru Тел. (495) 727-22-72*1: Basic dynamic load rating(C)It refers to a load with aconstant magnitude anddirection under which thenominal life (L) of a group ofidentical LM Guide unitsindependently operating is50 km.Service lifeThe service life of an LM Guide is subject to variations even under the sameoperational conditions. Therefore, it is necessary to use the nominal life definedbelow as a reference value for obtaining the service life of the LM Guide.Nominal lifeThe nominal life means the total traveldistance that 90% of a group of units of thesame LM Guide model can achieve withoutflaking (scale-like pieces on the metal surface)after individually running under the sameconditions.Service life timeOnce the nominal life (L) has been obtained,the service life time can be obtained using theequation on the right if the stroke length andthe number of reciprocations are constant.fH · fT · fC CL = ( · ) 3 50fWPCL : Nominal life (km)C : Basic dynamic load rating* 1 (N)PC : Calculated load (N)fH : Hardness factor (see Fig. 1)fT : Temperature factorfC : Contact factor (see Table 1)fW : Load factor (see Table 2)L 10 6Lh =2 RS n1 60Lh : Service life time (h)Rs : Stroke length (mm)n1 : Number of reciprocations per minute (min -1 )fHHardness factorTo ensure the achievement of the optimum load capacity of the LM Guide,the raceway hardness must be between 58 and 64 HRC.At hardness below this range, the basic dynamic and static load ratingsdecrease. Therefore, the rating values must be multiplied by therespective hardness factors (fH).Since the LM Guide has sufficient hardness, the fH value for the LM Guideis normally 1.0 unless otherwise specified.Hardness factor fH1.00.90.80.70.60.50.40.30.20.160 50 40 30 20 10Raceway hardness (HRC)Fig. 1fCContact factorWhen multiple LM blocks are used in close contact with each other, it isdifficult to achieve uniform load distribution due to moment loads andmounting-surface accuracy. When using multiple blocks in close contactwith each other, multiply the basic load rating (C or C0) by thecorresponding contact factor indicated in Table 1.Note: When uneven load distribution is expected in a large machine, consider using a contactfactor from Table 1.Table 1 Contact Factor (fC)Number of blocks used in close contact23456 or greaterNormal useContact factor fC0.810.720.660.610.61fTTemperature factorSince the service temperature of Caged Ball LM Guides is normally 80Cor below, the fT value is 1.0.fWLoad factorIn general, reciprocating machines tend to produce vibrations or impactduring operation. It is especially difficult to accurately determine allvibrations generated during high-speed operation and impacts producedeach time the machine starts and stops. Therefore, where the effects ofspeed and vibration are estimated to be significant, divide the basicdynamic load rating (C) by a load factor selected from Table 2, whichcontains empirically obtained data.FaintWeakMediumStrongTable 2 Load FactorfWVibrations/impact Speed (V) fWVery lowV0.25m/sSlow0.25V1m/sMedium1V2m/sHighV2m/s1 to 1.21.2 to 1.51.5 to 22 to 3.5

www.thk.ru thk-mail@ya.ru Тел. (495) 727-22-72SSR OUTLINEModel SSR - Product OverviewRadial Clearance StandardSince the radial clearance of an LM Guidegreatly affects the running accuracy, loadcarrying capacity and rigidity of the LMGuide, it is important to select anappropriate clearance according to theapplication.In general, selecting a negative clearance (i.e., apreload* 1 is applied) while taking into accountpossible vibrations and impact generated fromreciprocating motion favorably affects the servicelife and the accuracy.Radial clearance*1: PreloadPreload is an internal loadapplied to the rollingelements (balls, rollers,etc.) of an LM block inadvance in order toincrease its rigidity.The clearance of all modelSSR units is adjusted to thedesignated value beforebeing shipped. Therefore, itis unnecessary to adjust thepreload.Model No.Indication symbol1520253035NormalLight preloadNo symbolC1– 4 to + 2 –10 to – 4– 5 to + 2 –12 to – 5– 6 to + 3 –15 to – 6– 7 to + 4 –18 to – 7– 8 to + 4 –20 to – 8Unit: m

www.thk.ru thk-mail@ya.ru Тел. (495) 727-22-72*1: Running parallelismIt refers to the parallelismerror between the LM blockand the LM rail datum planewhen the LM block travelsthe whole length of the LMrail with the LM rail securedon the reference datumplane using bolts.*2: Difference in height MIt indicates the differencebetween the minimum andmaximum values of height(M) of each of the LMblocks used on the sameplane in combination.*3: Difference in width W2It indicates the differencebetween the minimum andmaximum values of thewidth (W2) between each ofthe LM blocks, mounted onone LM rail in combination,and the LM rail.Accuracy StandardThe accuracy of model SSR is specified interms of running parallelism ( *1 ),dimensional tolerance for height and width,and height and width difference between apair ( *2, *3 ) when two or more LM blocks areused on one rail or when two or more railsare mounted on the same plane.The accuracy of model SSR is categorized intoNormal grade (no symbol), High-accuracy grade(H), Precision grade (P), Super-precision grade(SP) and Ultra-precision grade (UP) by modelnumbers, as indicated in the table below.Model No.1520253035Accuracy standardItemDimensional tolerance for height MDifference in height MDimensional tolerance for width W2Difference in width W2Running parallelism ofsurface C against surface ARunning parallelism ofsurface D against surface BDimensional tolerance for height MDifference in height MDimensional tolerance for width W2Difference in width W2Running parallelism ofsurface C against surface ARunning parallelism ofsurface D against surface BNormalgradeNo symbol± 0.070.02± 0.060.02± 0.080.02± 0.070.025High-accuracygradeH± 0.030.01± 0.030.01± 0.040.015± 0.030.015PrecisiongradeP0– 0.030.0060– 0.020.006as shown in the table belowas shown in the table below0– 0.040.0070– 0.030.007as shown in the table belowas shown in the table belowSuper-precisiongradeSP0– 0.0150.0040– 0.0150.0040– 0.020.0050– 0.0150.005Ultra-precisiongradeUP0– 0.0080.0030– 0.0080.0030– 0.010.0030– 0.010.003Unit: mmLM Rail Length and Running Parallelism by Accuracy Standard for Models SSR Unit:mLM rail length (mm)Running Parallelism ValuesAboveOr lessNormal grade High-accuracy grade Precision grade Super precision grade Ultra precision gradeNo Symbol H P SP UP 50 1 1 12 11.5 1150 80 1 1 12 11.5 1180 125 1 1 12 11.5 11125 200 1 1 12 11.5 11200 250 1 1 12.5 11.5 11250 315 1 1 13 11.5 11315 400 1 1 13.5 12 11.5400 500 1 1 14.5 12.5 11.5500 630 1 15 13 12630 800 1 16 13.5 12800 1000 1 16.5 14 12.51000 1250 17.5 14.5 131250 1600 18 15 141600 2000 18.5 15.5 14.52000 2500 19.5 16 152500 3150 11 16.5 15.53150 4000 12 17.5 164000 5000 13 18.5 16.5

www.thk.ru thk-mail@ya.ru Тел. (495) 727-22-72SSR OUTLINEModel SSR - Product OverviewShoulder Height of the Mounting Base and the Corner RadiusNormally, the mounting base for theLM rail and the LM block has areference-surface on the side face ofthe shoulder of the base in order toallow easy installation and highlyaccurate positioning.The corner of the mounting shoulder must bemachined to have a recess, or machined to besmaller than the corner radius "r," to preventinterference with the chamfer of the LM rail orthe LM block.Model No.15X20X25X30X35XCorner radiusr (max)0.50.51.01.01.0Shoulder heightfor the LM railH13.85.05.58.09.0rShoulder for the LM railMaximum shoulder heightfor the LM blockrH1 H3rDShoulder for the LM blockH2 H3 D5.57.58.011.516.04.56.06.89.511.50.30.30.40.40.4rH2Unit: mmNote: When closely contacting the LM block with the datum shoulder, the resin layer may stick out from the overall width of the LM block bythe dimension D. To avoid this, machine the datum shoulder to have a recess or limit the datum shoulder's height below thedimension H2.Error Allowance in the Parallelism Between Two RailsThe table shows error allowances inparallelism (P) between two rails that will notaffect the service life in normal operation.Unit:mModel No. Clearance C0 Clearance C1 Normal clearance15X20X25X30X35X—2530354525303540503540506070Error Allowance in Vertical Level Between Two RailsThe values in the tables indicate the errorallowances in vertical level (S) between tworails per axis-to-axis distance of 500mm andare proportional to the axis-to-axis distances.Unit:mModel No. Clearance C0 Clearance C1 Normal clearance15X20X25X30X35X—80100120170100100120150210180180200240300

www.thk.ru thk-mail@ya.ru Тел. (495) 727-22-72Models SSR-XV(XVM)/SSR-XW(XWM)Dimensional Table for Models SSR-XV(XVM)/SSR-XW(XWM)External dimensionsLM block dimensionsModel No.HeightWidthLengthGreaseSSR 15XVXVMSSR 15XWXWMSSR 20XVXVMSSR 20XWXWMSSR 25XVXVMSSR 25XWXWMM242833W344248L B C S✕R L1 T K N E f0 e0 D0 nipple H340.356.947.766.56083.0263235—26—32—35M4✕7M5✕8M6✕923.339.927.846.636.859.86.58.28.419.522.026.24.55.56.05.512.012.02.72.83.34.55.27.0333PB1021BB-M6FB-M6F4.566.8SSR 30XWXWM426097.04040M8✕1270.711.332.58.012.04.57.64B-M6F9.5SSR 35XW4870110.95050M8✕1280.513.036.58.512.04.78.84B-M6F11.5Symbol M indicates that stainless steel is used in the LM block, LM rail and balls. Those models marked with this symbolare therefore highly resistant to corrosion and environment.Model number codingSSR25X V 2 UU C1 M +1240L Y P T M -ModelnumberType ofLM blockContaminationprotectionaccessorysymbol (*1)No. of LM blocks usedon the same railStainlesssteelLM rail length(in mm)LM blockRadial clearance symbol (*2)Normal (No symbol)Light preload (C1)Applied toonly 15and 25Stainlesssteel LM railSymbol for LM rail jointed useAccuracy symbol (*3) Normal grade (No Symbol)High accuracy grade (H)/Precision grade (P)Super precision grade (SP)/Ultra precision grade (UP)Symbol forNo. of railsused on thesame plane(*1) See contamination protection accessory on page 14. (*2) See page 6. (*3) See page 7.This model number indicates that a single-rail unit constitutes one set. (i.e., required number of sets when 2 rails are used inparallel is 2 at a minimum.)The LM rail mounting hole of SSR15X is drilled for M4 screws as standard (with Y indication). If you order the hole to bedrilled for M3 screws (without Y indication), contact THK. When replacing this model with model SR, pay attention to thedimension of the rail mounting hole.

www.thk.ru thk-mail@ya.ru Тел. (495) 727-22-72R Models SSR-XV/XVMR Models SSR-XW/XWMUnit: mmLM rail dimensions Basic load rating Static permissible moment [kN-m]* 6 MassWidthHeightPitchLength* 5CC0MAMBMCLM blockLM railW1±0.05W215 9.520 1123 12.528 1634 18M112.515.5182327.5F6060608080✕✕ Max [kN]4.5✕7.5✕5.32500 9.1(1240) 14.76✕9.5✕8.53000 13.4(1480) 19.67✕11✕93000 21.7(2020) 31.57✕11✕93000(2520)46.59✕14✕12 3000 64.6[kN]9.716.514.423.422.536.452.771.61 block0.03030.07920.05230.1380.1040.2580.4460.711Doubleblocks0.1920.440.3360.7230.6611.422.43.721 block0.01890.04860.03260.08470.06520.1580.2740.437Doubleblocks0.1220.2740.2130.4480.4190.8841.492.311 block0.05620.09620.1110.180.2040.330.5710.936[kg]0.080.150.140.250.230.40.81.1[kg/m]1.22.12.74.36.4*4 Pilot holes for side nipples are not drilled through in order to prevent foreign material from entering the product.THK will mount grease nipples per your request. Therefore, do not use the side nipple pilot holes for purposes other than mountinga grease nipple.*5 The maximum length under “Length” indicates the standard maximum length of an LM rail. (See page 13.)*6 Static permissible moment : 1 block: static permissible moment value with 1 LM blockDouble blocks: static permissible moment value with 2 blocks closely contacting with each other

www.thk.ru thk-mail@ya.ru Тел. (495) 727-22-72Model SSR-XTBDimensional Table for Model SSR-XTBExternal dimensionsLM block dimensionsModel No.HeightWidthLengthGreaseMWL B C H L1 T K N E f0 e0 D0 nipple H3SSR 15XTB245256.941264.539.9719.54.55.52.74.53PB1021B4.5SSR 20XTB285966.549325.546.6922.05.512.02.85.23B-M6F6.0SSR 25XTB337383.060357.059.81026.26.012.03.37.03B-M6F6.8Model number codingSSR25X TB 2 UU C1 +1240L Y P T -ModelnumberType ofLM blockContaminationprotectionaccessoryNo. of LM blocks usedon the same railLM rail length(in mm)Applied to only 15 and 25symbol (*1) Radial clearance symbol (*2)Normal (No symbol)Light preload (C1)Symbol forNo. of rails usedon the same planeSymbol forLM rail jointed useAccuracy symbol (*3) Normal grade (No Symbol)High accuracy grade (H)/Precision grade (P)Super precision grade (SP)/Ultra precision grade (UP)(*1) See contamination protection accessory on page 14. (*2) See page 6. (*3) See page 7.This model number indicates that a single-rail unit constitutes one set. (i.e., required number of sets when 2 rails are used inparallel is 2 at a minimum.)The LM rail mounting hole of SSR15X is drilled for M4 screws as standard (with Y indication). If you order the hole to bedrilled for M3 screws (without Y indication), contact THK. When replacing this model with model SR, pay attention to thedimension of the rail mounting hole.

www.thk.ru thk-mail@ya.ru Тел. (495) 727-22-72 Unit: mmLM rail dimensions Basic load rating Static permissible moment [kN-m]* 6 MassWidthHeightPitchLength* 5CC0MAMBMCLM blockLM railW1±0.05W215 18.520 19.523 25.0M112.515.518.0F606060✕✕4.5✕7.5✕5.36✕9.5✕8.57✕11✕9Max2500(1240)3000(1480)3000(2020)[kN]14.719.631.5[kN]16.523.436.41 block0.07920.13800.2580Doubleblocks0.4400.7231.4201 block0.04860.08470.1580Doubleblocks0.2740.4480.8841 block0.09620.18000.3300[kg]0.190.310.53[kg/m]1.22.12.7*4 Pilot holes for side nipples are not drilled through in order to prevent foreign material from entering the product.THK will mount grease nipples per your request. Therefore, do not use the side nipple pilot holes for purposes other than mountinga grease nipple.*5 The maximum length under “Length” indicates the standard maximum length of an LM rail. (See page 13.)*6 Static permissible moment: 1 block: static permissible moment value with 1 LM blockDouble blocks: static permissible moment value with 2 blocks closely contacting with each other

www.thk.ru thk-mail@ya.ru Тел. (495) 727-22-72SSRStandard Length and Maximum Length of the LM RailThe table below shows the standard LM rail lengths and the maximum lengths of model SSRvariations. If the maximum length of the desired LM rail exceeds them, connected rails will beused. Contact THK for details.For the G dimension when a special length is required, we recommend selecting the corresponding Gvalue from the table. The longer the G dimension is, the less stable the G area may become afterinstallation, thus adversely affecting accuracy. Model No.LM rail Standard Length (L0)Standard pitch F 60GMax lengthSSR 15X16022028034040046052058064070076082094010001060112011801240130013601420148015402025001240Standard Length and Maximum Length of the LM Rail for Model SSRSSR 20X22028034040046052058064070076082094010001060112011801240130013601420148015401600166017201780184019001960202020802140602030001480SSR 25X220280340400460520580640700760820940100010601120124013001360142014801540160016601720178018401900196020202080214022002260232023802440602030002020SSR 30X280360440520600680760840920100010801160124013201400148016401720180018801960204021202200228023602440252026002680276028402920802030002520Unit: mmSSR 35X28036044052060068076084092010001080116012401320140014801640172018001880196020402120220022802360244025202600268027602840292080203000Note 1: The maximum length varies with accuracy grades. Contact THK for details.Note 2: If connected rails are not allowed and a greater length than the maximum values above is required, contact THK.Note 3: The values in the parentheses indicate the maximum lengths of stainless steel types.

www.thk.ru thk-mail@ya.ru Тел. (495) 727-22-72SSR OPTIONSOptionsFor model SSR, dust-prevention and lubrication accessories areavailable. Make a selection according to the application and theinstallation site.7Dedicated bellows JSSR-X for model SSR8Dedicated C-cap for LM rail mounting holes3Double sealsSpacer1End seal46Laminated ContactScraper LaCSLight Sliding ResistanceContact Seal LiCS5Metal scraperQZ Lubricator 92Side seal

www.thk.ru thk-mail@ya.ru Тел. (495) 727-22-72Dust Prevention AccessoriesWhen foreign matter enters an LM system, it will cause abnormal wear or shorten the service life. Itis necessary to prevent foreign matter from entering the system. Therefore, when possible entranceof foreign matter is predicted, it is important to select an effective sealing device or dust-preventiondevice that meets the working conditions.123End sealUsed in locations exposed todust.Side sealUsed in locations where dustmay enter the LM block from theside or bottom surface, such asvertical, horizontal and invertedmounts.Side sealEnd sealDouble sealsUsed in locations exposed tomuch dust or many cutting chips.End sealSeals and Scrapersz to c SealsHighly wear-resistant end seals made of special resinrubber and side seals for increased dust-prevention effectare available.If desiring a dust-prevention accessory, specify it with thecorresponding symbol indicated in table 3.For the supported model numbers for dust-prevention accessoriesand the overall LM block length with a dust-prevention accessoryattached (dimension L), see table 4.Seal resistance valueFor the maximum seal resistancevalue per LM block when a lubricantis applied on seal SSR … UU, referto the corresponding value providedin table 1.Table 1 Maximum Seal Resistance Valueof Seal SSR … UUUnit: NModel No.15X20X25X30X35XSeal resistance value2.02.63.54.96.3vb ScrapersLaminated Contact Scraper LaCSFor locations with an even more adverse workingconditions, the Laminated Contact Scraper LaCS isavailable.LaCS prevents minute foreign matter from entering the LMblock by removing such foreign matter adhering to the LMrail in multiple stages through a laminated contactstructure (3-layered scraper).FeaturesSince the 3 layers of scrapers fullycontact the LM rail, LaCS is highlycapable of removing minuteforeign matter.Since it uses oil-impregnated,foam synthetic rubber with a selflubricatingfunction, low frictionresistance is achieved.Basic Specifications of LaCS1 Service temperature range ofLaCS: -20 C to +80 C2 Resistance of LaCS: indicated intable 2*Note that LaCS is not sold alone.Table 2 Resistance of LaCSUnit: NModel No. Resistance of LaCS15X5.920X6.925X8.130X12.835X15.1Note 1: Each resistance value in the tableonly consists of that of LaCS, anddoes not include slidingresistances of seals and otheraccessories.Note 2: For the maximum service speedof LaCS, contact THK.n Light Sliding Resistance Contact Seal LiCSLiCS is a contact seal with a low sliding resistance. It iseffective in removing dust and the like from the racewayand retaining a lubricant such as grease. With its very lowsliding resistance, LiCS achieves a smooth and stablemotion.

www.thk.ru thk-mail@ya.ru Тел. (495) 727-22-72OPTIONSOptionsSymbolUUSSDDGGPPZZKKSSHHDDHHZZHHKKHHTable 3 Symbols of Dust Prevention Accessories for Model SSRDust prevention accessoryWith end sealWith end seal + side sealWith double seals + side sealLiCSLiCS + side sealWith end seal + side seal + metal scraperWith double seals + side seal + metal scraperWith end seal + side seal + LaCSWith double seals + side seal + LaCSWith end seal + side seal + metal scraper + LaCSWith double seals + side seal + metal scraper + LaCSWhen Dust Prevention Accessories SSHH, DDHH, ZZHH or KKHH are AttachedWhen dust prevention accessoriesSSHH, DDHH, ZZHH or KKHH areattached, the grease nipple in thelocation indicated in the figure below.The table on the right shows incrementaldimensions with the grease nipple.LaCSGrease nippleEndplateHK : DatumplaneNote: When desiring the mounting location forthe grease nipple other than the oneindicated in the figure above, contact THK.Model No.15XV/XW15XTB20XV/XW20XTB25XV/XW25XTB30XW35XWIncremental dimensionwith grease nippleH4.4—4.6—4.5—5.05.0Unit: mmNipple typePB107PB107PB107PB107PB107PB107PB1021BPB1021BLaCSUsed in harsh environmentsexposed to foreign matter suchas fine dust and liquids.Ball cageBallStructural drawingContact scraperLiquidMetal scraperUsed in locations wherewelding spatter may adhere tothe LM rail.Metal scraper4Large amount offoreign matter5When Dust PreventionAccessories GG, PP are AttachedThe table on the right showsincremental dimensions withthe grease nipple when dustprevention accessories GG,PP are attached.Model No.15XV15XW/XTB20XV20XW/XTB25XV25XW/XTB30XW35XWIncremental dimensionwith grease nippleE2.92.9999998Unit: mmNipple typePB1021BPB1021BB-M6FB-M6FB-M6FB-M6FB-M6FB-M6FLiCS 6When Dust Prevention Accessories DD, ZZ or KK are AttachedFor the mounting location of the grease nipple and its incremental dimensionwhen dust prevention accessories DD, ZZ or KK are attached, contact THK.Table 4 Overall LM Block Length (Dimension L) of Model SSR with a Dust Prevention Accessory AttachedUnit: mmModel No.15XV15XW/XTB20XV20XW/XTB25XV25XW/XTB30XW35XWUU40.356.947.766.560.083.097.0110.9SS40.356.947.766.560.083.097.0110.9DD47.363.954.673.467.490.4105.1119.9GG48.765.355.874.667.690.6106.7121.7PP48.765.355.874.667.690.6106.7121.7ZZ44.961.553.472.265.788.7102.7117.7KK50.767.360.379.173.196.1110.8126.7SSHH59.576.167.786.580.0103.0121.0136.9DDHH65.381.974.693.487.4110.4129.1145.9ZZHH60.777.370.188.982.4105.4123.4139.3KKHH66.583.177.095.889.8112.8131.5148.3

www.thk.ru thk-mail@ya.ru Тел. (495) 727-22-726Dedicated bellows JSSR-Xfor model SSRUsed in locations exposed to dustor cutting chips.bWH P b1 SH1PWb2t4t3SModels SSR15X to 25Xt2Models SSR30X and 35Xat1n Dedicated Bellows JSSR-X for Model SSRFor locations with an even more adverse workingconditions, dedicated bellows are available. The dimensions ofthe dedicated bellows are provided below. When placing anorder, specify the desired bellows type with thecorresponding bellows model number indicated below.ModelNo.JSSR 15XJSSR 20XJSSR 25XJSSR 30XJSSR 35XTable 1 The dimensions of dedicated bellows JSSR-X for model SSRMajor dimensionsW H H1 P b1 t1 b2 t2 t3 t4515871768424.0 26.026.0 30.033.0 38.037.5 37.539.0 39.0151520202020.525.029.035.044.04.74.25.09.07.0———1214———1720866———67——Mounting boltSM3✕5RM3✕5RM3✕5RM4✕6RM5✕10RNote 1: When desiring to use the dedicated bellows other than in horizontal mount (i.e., vertical,wall and inverted mount), or when desiring a heat-resistant type of bellows, contact THK.Note 2: For lubrication when using the dedicated bellows, contact THK.Note 3: When using the dedicated bellows, the LM block and LM rail need to be machined so thatthe bellows can be mounted. Be sure to indicate that the dedicated bellows is requiredwhen ordering SSR.■ Example of model numbercodinga54732bXW/XV8.58.011.58.07.0XTB–0.5–0.5–1.0——ALmaxLmin55777Unit: mmSupportedmodelSSR 15XSSR 20XSSR 25XSSR 30XSSR 35XJSSR35X-60/420zModel number ... bellows for SSR35XxBellows dimensions (length when compressed / length when extended)zxNote: The length of the bellows is calculatedas follows.SLmin =(A—1)Lmax = Lmin.AS: Stroke length (mm)A: Extension rate7 Dedicated Cap CIt prevents cutting chips fromentering the LM rail mountingholes.m Dedicated Cap C for LM Rail Mounting HolesIf any of the LM rail mounting holes of an LM Guide isfilled with cutting chips or foreign matter, they may enterthe LM block structure. Entrance of such foreign mattercan be prevented by covering each LM rail mounting holewith the dedicated cap so that the top of the mountingholes are on the same level as the LM rail top face.DHThe dedicated Cap C forLM rail mounting holes ishighly durable since ituses a special syntheticresin with high oilresistance and high wearresistance. When placingan order, specify thedesired cap type with thecorresponding capnumber indicated in thetable on the right.Model No.1520253035Cap Cmodel No.BoltusedMajor dimensions mmD HC4 M4 7.8 1.0C5 M5 9.8 2.4C6 M6 11.4 2.7C6 M6 11.4 2.7C8 M8 14.4 3.7

www.thk.ru thk-mail@ya.ru Тел. (495) 727-22-72OPTIONSOptionsLubrication Accessories, QZ LubricatorTMQZ Lubricator8The QZ Lubricator feeds the right amount of lubricant tothe ball raceway on the LM rail. This allows an oil film tocontinuously be formed between the balls and theraceway, and drastically extends the lubrication andmaintenance intervals.When the QZ Lubricator is required, specify the desired type with thecorresponding symbol indicated in table 1.For supported LM Guide model numbers for the QZ Lubricator andoverall LM block length with the QZ Lubricator attached (dimension L),see table 2.FeaturesSupplements lost oil todrastically extend thelubrication/maintenanceinterval.Eco-friendly lubrication systemthat does not contaminate thesurrounding area since it feedsthe right amount of lubricant tothe ball raceway.The user can select a type oflubricant that meets theintended use.SymbolQZUUQZSSQZDDQZGGQZPPQZZZQZKKQZSSHHQZDDHHQZZZHHQZKKHHSignificant Extensionof the MaintenanceIntervalAttaching the QZ Lubricator helpsextend the maintenance intervalthroughout the whole load rangefrom the light-load area to theheavy-load area.Note1: The QZ Lubricator is not sold alone.Note2: Those models equipped with the QZ Lubricator cannot have a grease nipple.When desiring both the QZ Lubricator and a grease nipple to be attached, contact THK.Table 1 Parts Symbols for Model SSR with the QZ LubricatorDust prevention accessories for model SSR with QZ LubricatorWith end seal + QZ LubricatorWith end seal + side seal + QZ LubricatorWith double seals + side seal + QZ LubricatorWith LiCS + QZWith LiCS + side seal + QZWith end seal + side seal + metal scraper + QZ LubricatorWith double seals + side seal + metal scraper + QZ LubricatorWith end seal + side seal + LaCS + QZ LubricatorWith double seals + side seal + LaCS + QZ LubricatorWith end seal + side seal + metal scraper + LaCS + QZ LubricatorWith double seals + side seal + metal scraper + LaCS + QZ LubricatorEnd sealCaseHeavy oil-impregnated fiber netOil control plateFlow of lubricantHigh-density fiber netBallBall cageThe structure of the QZ Lubricatorconsists of three major components: a heavy oil-impregnated fiber net(functions to store lubricant). a high-density fiber net(functions to apply lubricant tothe raceway). an oil-control plate(functions to adjust oil flow).The lubricant contained in the QZLubricator is fed by the capillaryphenomenon, which is used alsoin felt pens and many otherproducts, as the fundamentalprinciple.Table 2 Overall LM Block Length (Dimension L) of Model SSR with the QZ LubricatorAttachedUnit: mmModel No.15XV15XW/XTB20XV20XW/XTB25XV25XW/XTB30XW35XWQZUU59.375.966.285.082.6105.6119.7134.3QZSS59.375.966.285.082.6105.6119.7134.3QZDD65.181.773.191.990.0113.0127.8143.3QZZZ62.779.372.190.988.4111.4125.4141.3QZKK68.585.179.097.895.8118.8133.4150.3QZSSHH75.592.183.7102.5100.0123.0141.0156.9QZDDHH81.397.990.6109.4107.4130.4149.1165.9QZZZHH76.793.386.1104.9102.4125.4143.4159.3QZKKHH82.599.193.0111.8109.8132.8151.5168.3

www.thk.ru thk-mail@ya.ru Тел. (495) 727-22-72 HandlingCaged Ball LM Guide Model SSRPrecautions on useDisassembling components may cause dust to enter the system or degrade mounting accuracy of parts. Do not disassemble theproduct.Tilting an LM block or LM rail may cause them to fall by their own weight.Dropping or hitting the LM Guide may damage it. Giving an impact to the LM Guide could also cause damage to its function even ifthe guide looks intact. LubricationThoroughly remove anti-corrosion oil and feed lubricant before using the product.Do not mix lubricants of different physical properties.In locations exposed to constant vibrations or in special environments such as clean rooms, vacuum and low/high temperature,normal lubricants may not be used. Contact THK for details.When planning to use a special lubricant, contact THK before using it.When adopting oil lubrication, the lubricant may not be distributed throughout the LM system depending on the mounting orientationof the system. Contact THK for details.Lubrication interval varies according to the service conditions. Contact THK for details. Precautions on UseEntrance of foreign matter may cause damage to the ball circulating path or functional loss. Prevent foreign matter, such as dust orcutting chips, from entering the system.When planning to use the LM system in an environment where coolant penetrates the LM block, it may cause trouble to productfunctions depending on the type of coolant. Contact THK for details.Do not use the LM system at temperature of 80 or higher. When desiring to use the system at temperature of 80 or higher,contact THK in advance.If foreign matter adheres to the LM system, replenish the lubricant after cleaning the product. For available types of detergent,contact THK .When using the LM Guide with an inverted mount, breakage of the endplate due to an accident or the like may cause balls to fallout and the LM block to come off from the LM rail and fall. In these cases, take preventive measures such as adding a safetymechanism for preventing such falls.When using the LM system in locations exposed to constant vibrations or in special environments such as clean rooms, vacuumand low/high temperature, contact THK in advance.When removing the LM block from the LM rail and then replacing the block, an LM block mounting/removing jig that facilitates suchinstallation is available. Contact THK for details. StorageWhen storing the LM Guide, enclose it in a package designated by THK and store it in a horizontal orientation while avoiding hightemperature, low temperature and high humidity.● “LM GUIDE” and “” are registered trademarks of THK CO., LTD.● The photo may differ slightly in appearance from the actual product.● The appearance and specifications of the product are subject to change without notice. Contact THK before placing an order.● Although great care has been taken in the production of this catalog, THK will not take any responsibility for damage resulting from typographical errors or omissions.● For the export of our products or technologies and for the sale for exports, THK in principle complies with the foreign exchange law and the Foreign Exchangeand Foreign Trade Control Law as well as other relevant laws.All rights reservedFor export of THK products as single items, contact THK in advance.NORTH AMERICATHK America,Inc.HEADQUARTERSPhone:+1-847-310-1111 Fax:+1-847-310-1271CHICAGO OFFICEPhone:+1-847-310-1111 Fax:+1-847-310-1182NEW YORK OFFICEPhone:+1-845-369-4035 Fax:+1-845-369-4909ATLANTA OFFICEPhone:+1-770-840-7990 Fax:+1-770-840-7897LOS ANGELES OFFICEPhone:+1-949-955-3145 Fax:+1-949-955-3149SAN FRANCISCO OFFICEPhone:+1-925-455-8948 Fax:+1-925-455-8965BOSTON OFFICEPhone:+1-781-575-1151 Fax:+1-781-575-9295DETROIT OFFICEPhone:+1-248-858-9330 Fax:+1-248-858-9455TORONTO OFFICEPhone:+1-905-820-7800 Fax:+1-905-820-7811SOUTH AMERICATHK Brasil LTDAPhone:+55-11-3767-0100 Fax:+55-11-3767-0101EUROPETHK GmbHEUROPEAN HEADQUARTERSPhone:+49-2102-7425-0 Fax:+49-2102-7425-217HEAD OFFICE 3-11-6, NISHI-GOTANDA, SHINAGAWA-KU, TOKYO 141-8503 JAPANINTERNATIONAL SALES DEPARTMENT PHONE:+81-3-5434-0351 FAX:+81-3-5434-0353Global site : http://www.thk.com/DÜSSELDORF OFFICEPhone:+49-2102-7425-0 Fax:+49-2102-7425-299FRANKFURT OFFICEPhone:+49-2102-7425-650 Fax:+49-2102-7425-699STUTTGART OFFICEPhone:+49-7150-9199-0 Fax:+49-7150-9199-888MÜNCHEN OFFICEPhone:+49-8937-0616-0 Fax:+49-8937-0616-26U.K. OFFICEPhone:+44-1908-30-3050 Fax:+44-1908-30-3070ITALY MILANO OFFICEPhone:+39-039-284-2079 Fax:+39-039-284-2527ITALY BOLOGNA OFFICEPhone:+39-051-641-2211 Fax:+39-051-641-2230SWEDEN OFFICEPhone:+46-8-445-7630 Fax:+46-8-445-7639AUSTRIA OFFICEPhone:+43-7229-51400 Fax:+43-7229-51400-79SPAIN OFFICEPhone:+34-93-652-5740 Fax:+34-93-652-5746TURKEY OFFICEPhone:+90-216-362-4050 Fax:+90-216-569-7150THK France S.A.S.Phone:+33-4-3749-1400 Fax:+33-4-3749-1401CHINATHK (CHINA) CO.,LTD.HEADQUARTERSPhone:+86-411-8733-7111 Fax:+86-411-8733-7000SHANGHAI OFFICEPhone:+86-21-6219-3000 Fax:+86-21-6219-9890BEIJING OFFICEPhone:+86-10-8441-7277 Fax:+86-10-6590-3557CHENGDU OFFICEPhone:+86-28-8526-8025 Fax:+86-28-8525-6357GUANGZHOU OFFICEPhone:+86-20-8333-9770 Fax:+86-20-8333-9726THK (SHANGHAI) CO.,LTD.Phone:+86-21-6275-5280 Fax:+86-21-6219-9890TAIWANTHK TAIWAN CO.,LTD.TAIPEI HEAD OFFICEPhone:+886-2-2888-3818 Fax:+886-2-2888-3819TAICHUNG OFFICEPhone:+886-4-2359-1505 Fax:+886-4-2359-1506TAINAN OFFICEPhone:+886-6-289-7668 Fax:+886-6-289-7669KOREASEOUL REPRESENTATIVE OFFICEPhone:+82-2-3468-4351 Fax:+82-2-3468-4353SINGAPORETHK LM SYSTEM Pte. 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