T E C HNI C ALC ATALOGUENational Engineering Industries Ltd., part of the 150 year old, multi-billion dollar C.K. Birla group manufactures a wide range of Ball & Roller bearings forautomotiveandrailwayindustryaswellasforgeneralindustrial applications under the brand name nbc. NEI also manufactures Steel Balls and Axle Boxes, produced at plants locatedat Jaipur, Newai & Manesar.NEI, founded in the year 1946 as a pioneer industry in the field of bearing, manufacturing over 1000 different sizes ranging from 6 mm bore to 1300 mm outer diameter and having capability to manufacture bearing upto 2000 mm. diameter.Bearings are manufactured for every possible application and requirement ofmodernengineeringindustryandwecontinuetodevelopnewsizes, keeping pace with rapid advancement in the Indian & Global engineering industry. NEI's technical collaborations with world's leading conglomerate in the field of bearing technology viz. M/s NTN Corporation of Japan, and M/s AMSTED Rail, USA have given a whole new dimension to the product range and a quality par excellence.NEI has implemented modern concepts of Total Quality Management (TQM) and being awarded the coveted Deming Application Prize in 2010, NEI is the only bearing company in India to receive this prestigious award, NEI is also accredited with QS 9000 and TS16949 certification.NEI has also been awarded Association of American Railroads (AAR) for AAR certificate M-1003 for Cartridge Tapered Roller Bearing in February 2005. NEI has been awarded ISO-14001 certificate for its concern & commitment towards a cleaner environment. We at NEI are confident that all users of NEI products will find a new presentation of this technical catalogue useful and informativeandyouarewelcometoconsult,NElforeveryassistancein selecting right bearing for any application that you have in mind.ThiseditionoftheNBCCataloguecontainsallnecessaryinformationand data required for selection of right bearing for specific applications. The data isbasedonInternationalStandardslaiddownforthepurposeandour manufacturing experience of more than 60 years.OurcataloguehasbeenrevisedasperthelatestIS/ISOstandardsfor chamfer,dimensions,bearingaccuracies,qualitysymbolsanddefinitions and new sizes being added. For improvement as well as other reasons, the contents of this catalogue are subject to change without prior notice.T E C HNI C ALC ATALOGUEThisversionsupersedesallpreviousones.Pleasebeinformedthatthebearings mentionedinthistechnicalcataloguearenormallymanufacturedinnormaltolerance class, however, other class bearingscanbesuppliedagainstspecificrequirements. NEI Ltd. Jaipur2014Althoughcarehasbeentakentoensuretheaccuracyof the data compiled in this catalogue. NEI does not assume any liability to any company or person for errors or ommisions.CATALOGUE/TC-104, JANUARY 20141946195019511957196719711971197519761981Company Established as National Bearing Company (NBC) underTechnical Collaboration with Hoffman, U.K.Ball Bearing Production StartedRailway Bearing Production StartedCompany name changed to National Engineering Industries Ltd.(Retaining NBC as Trade Mark)Established Research & Development DivisionEstablished Machine Building DivisionLarge Diameter Special Bearings Production StartedSpherical Roller Bearingswith Technical Production Started Know how from FAG-SROSeparate Factory for Ball Bearings at Gunsi (Newai)Tapered Roller Bearingsunder Technical Production Started Collaboration with Federal Mogul Corporation, U.S.A.1982Cartridge Tapered Roller Bearings Production Started inTechnical Collaboration with AMSTED Rail - U.S.A.MILESTONES1985Largest Bearing with Outer Diameter 1.3 Meter & Weight 4.39 Tonsproduced1985Technical Collaboration with NTN Corporation of Japan forBall, Cylindrical & Spherical Roller Bearings1995 ISO - 9001 Certificate1997Technical Collaboration with NTN Corporation of Japan for Tapered Roller Bearings and Hub Bearings1998IV Phase - Modernisation Started1999Implemented Ist Phase of SAP-ERP Solutions.2000QS-9000 & ISO-14001 Certification.2003TS-16949 Certification.1996Technical Collaboration with M/s Izumi Kinzoku Kogyo Co. Ltd.,Japan for Machine Retrofitting/Remanufacturing and overhauling.1990to95Modernization in Three PhasesAAR Certification M-1003 for Cartridge Tapered Roller Bearing.20052006 New Manufacturing facility at IMT Manesar (Haryana)2007 TPM excellence award Newai plant.2008 TPM excellence award Jaipur plant.2010Deming application prize for Total Quality Management.2012 ACMA awards for Manufacturing and Technology Excellence1.ROLLING BEARING CONSTRUCTION AND CLASSIFICATION 11.1 Bearing Classification2.BEARING DESIGNATION53.BEARING SELECTION 84.LOAD RATING AND LIFE 94.1 Basic Dynamic Load Rating and Life4.2 Basic Static Load Rating4.3 Life Factors for application5.ACCURACY AND TOLERANCES135.1 Dimensional Accuracy5.2 Running Accuracy5.3 Tolerances for Radial Bearing (except Taper Roller Bearings)5.4 Tolerances for Tapered Roller Bearing (Metric Series)5.5 Tolerances for Tapered Roller Bearing (Inch Series)5.6 Tolerances for Thrust Ball and Roller Bearing (Inch Series)5.7 Chamfer Dimensions Limits for Roller Bearing5.8 Basic Tapered Bore, Taper 1:126. BEARING INTERNAL CLEARANCE 296.1 Internal Clearance Selection6.2Radial Internal Clearance Value7. LUBRICATION 387.1 Types of Lubrication7.2 Methods of Oil Lubrication8. SEATINGS, LIMITS AND FITS 468.1Seatings8.2 Fits8.3 Limits and Fit guidelines9. BEARING HANDLING529.1 Mounting9.2 Dismounting & Replacement9.3 Bearing Cleaning9.4 Abutment for Bearing10. BEARING FAILURE6110.1 Why Bearing Fails10.2Bearing Damage & Corrective MeasuresPAGE NO.11.BEARING TABLES 6611.1 Single Row Radial Ball Bearings (Metric series)6611.2Single Row Radial Ball Bearings (Special Bearings)7211.3 Single Row Radial Ball Bearings (Inch series)7311.4 Single Row Angular Contact Ball Bearings (Metric series)7511.5 Single Row Angular Contact Ball Bearings (Inch series)7611.6 Single Row Externally Aligning Ball Bearings7711.7 Double Row Self Aligning Ball Bearings (Metric series)7811.8 Double Row Self Aligning Ball Bearings (Inch series)7911.9 Double Row Self Aligning Ball Bearings with Taper Clamping Sleeve and Nut8011.10Special Bearing Races8111.11 Double Row Angular Contact Sealed Bearings8211.12 Special Bearings8411.13 Single Row Cylindrical Roller Bearings (Metric series)8511.14Single Row Cylindrical Roller Bearings (Inch series)8811.15Multi Row Cylindrical Roller Bearings8911.16Special Cylindrical Roller Bearings9011.17 Double Row Cylindrical Roller Sealed Unit (Inch series)9511.18Single Row Tapered Roller Bearings (Inch series)9611.19Single Row Tapered Roller Bearings (Metric series)10811.20 Double Row Tapered Roller Bearings12211.21 Four Row Tapered Roller Bearings12611.22Thrust Bearings12711.23Spherical Roller Bearings12811.24AAR Standard Cartridge Tapered Roller Bearings13011.25Metric Cartridge Tapered Roller Bearings13111.26Units Specified in SI System13211.27Steel Balls13311.28 Conversions Tables134PAGE NO.Rolling bearings are generally composed of bearing rings, rolling elements and cages. Several rolling elements are placed between two bearing rings and cages prevent the rolling elements from contact and with such a structure, a smooth rolling action becomes possible.Rolling bearings are divided into radial bearings and thrust bearings, mainly depending on the applicable load direction. Radial bearing mainly take radial loads. Most types of radial bearings can also take thrust loads. Thrust bearings generally take thrust loads only and not radial loads.Rolling bearings are largely divided into ball bearings and roller bearings in accordance with the types of rolling elements, Rollerbearingsarefurtherdivideddependingontheshapeoftherollerintocylindricalrollerbearingstaperedroller bearings, spherical roller bearings and needle roller bearings. Ball bearings are divided into several types, depending on the shape of bearing rings and the contact position between the balls and the raceway.Thecagesofrollingbearingsaredividedintopressedandmachinedoneswiththeshapesdifferingaccordingtothe bearings type and conditions of use.1.1 Bearing Classification1.1.1 Single Row Radial Ball BearingsThe Single row radial ball bearings accommodate pure radial, pure axial or any combination of radial and axial loads within its capacity. These can operate at veryhighspeeds.Forthesereasonsanditseconomicalprice,itisthemost widely used bearing.Owingtohighdegreeofconformitybetweenballsandraceways,theself aligning capability of deep groove ball bearings is small. This fact calls for well aligned bearing mountings.These bearings can be located endwise in both the directions. Different variations in the type are as shown below :Outer ringInner ringCageBallDeep Groove single Row Ball Bearing1. ROLLING BEARING CONSTRUCTION AND CLASSIFICATIONZONE DUST SHIELDZZTWO DUST SHIELDSHIELD TYPELU/LHLLU/LLHSEAL TYPETWO RUBBER SEALS ONE RUBBER SEALTWO RUBBER SEALS ONE RUBBER SEALRSS RSZNRSNAP RING &ONE DUST SHIELDSNAP RING &TWO DUST SHIELDSZZNRN NRSNAP RING SNAP RINGGROOVE1TMB Ball BearingsTMB ball bearings have the same boundary dimensions as standard deep groove ball bearings, but have undergone a special heat treatment that considerably extends wear life. Thesebearingswereespeciallyeffectiveincountering reduced wear life due to the effects of infiltration of dust and other foreign matter.TMB ball bearings special characteristics are identical to standard ball bearings at rated loads, but with a bearing characterization factor of a= 2.22TMB 62 series bearings can be used in place of standard 63seriesbearingsenablinglighterweight,more compact designs.Fordimensionalspecificationsandotherdetailed information about TMB ball bearings, contact NEI Technical Cell.1.1.2 Single Row Radial Ball Bearing with Tapered BoreThesinglerowradialballbearingswithtaperedboreare identical to single row radial ball bearings except that these have tapered bore which is used for easier mounting and for the adjustment of radial clearance.Dimensions of tapered bore diameter refer to small bore.1.1.3 Single Row Angular Contact Ball BearingThesinglerowangularcontactballbearingshavehigher axial load capacity than the single row radial ball bearings. The radial load must always be less than axial load.The bearings can carry axial load in one direction only and should be adjusted against another bearing, if axial load is coming from both the directions.Each bearing can be located endwise in one direction only.1.1.4 Single Row Externally Aligning Ball BearingThesinglerowexternallyaligningballbearingsareused where accurate alignment can not be guaranteed between bearingpositions.It cantake radialloads.Axialloadscan also be accommodated.The shell housing must not be made an interference fit on their outside diameter. If an interference fit is used, the shell housing may contract and prevent alignment.Thesebearingscanbelocatedendwiseinboththe directions.1.1.5 Double Row Self Aligning BalI Bearing The double row self aligning ball bearings have the common outer spherical race for both the rows. This feature gives the bearingsselfaligningproperties.Thebearingshavethe sameexternal dimensions as there equivalent single row radial ball bearings. They can take radial loads and very light axialloads.Theycanbelocatedendwiseinboththe directions. SINGLE ROWANGULAR CONTACT BALL BEARING SINGLE ROWEXTERNALY ALIGNINGBALL BEARINGSINGLE ROW RADIALBALL BEARING WITHTAPER BORETAPERED BORE 1:12 CYLINDRICAL BOREDouble Row Self Aligning BalI Bearing1 21.1.6 Double Row Self-Aligning Ball Bearing with Tapered Clamping Sleeve and NutThedoublerowself-aligningballbearingswithtapered clamping sleeve and nut are identical to double row self-aligningballbearingexceptthatthesehaveatapered bore,whichisusedforeasiermountingandalsoa clampingsleeveandnuttoclampthebearingsonthe shaft. The tapered bore is also used for the adjustment of radial clearance.1.1.7 Thrust Ball BearingThe thrust ball bearings are used for high axial loads at low speeds. These can not operate at high speed as it will give rise to centrifugal or radial forces which can not be taken by the bearings.They can be located endwise in one direction only.1.1.8 Cylindrical Roller BearingThe cylindrical roller bearings have greater radial load capacity than ball bearings of same external dimensions and are particularly suitable for arduous duties. The bearing features a modified line contact between rollers and raceways to eliminateedgestressing.Thesebearingshaveahighradialloadcapacityandaresuitableforhighspeeds.Dueto detachable design character they have advantage of mounting inner ring and outer ring separately.Thedirectionofaxialloadwhichabearingcantakedependinguponthegeometryofthebearing.Manyvariations available are shown below :Double Row Self-Aligning Ball Bearing with Tapered Clamping Sleeve and NutUPPER THRUSTPLATECAGEBALLLOWER THRUSTPLATEThrust Ball Bearing3Type NU Type NF Type NUP Type N Type NJB D dType NH = NJ+NJ Type RNU Type RNSpecial CylindricalRoller Bearing1.1.9 Tapered Roller BearingTapered roller bearings are designed in such a way that vertices of the cone for each roller and those for the inner and outer raceways coincides on the bearing axis or extensions of the raceways and rollers converge at a common point on the axis of rotation. This results in true rolling motion of the rollers on the raceways at every point along the rollers.Thetaperedrollerbearingssupportradialloadsandaxialloads fromonedirectiononly.Thelinecontactbetweenrollersand raceways provide the bearings with a high load carrying capacity. Steep angle tapered roller bearing with exceptionally steep cone angle enables the bearings to take heavier axial load.The bearings are of separable type, enabling separate mounting of cups and cones.Since the tapered roller bearings can absorb thrust loads in one directiononly,thesebearingsshouldgenerallybeinstalledas opposedmountings.Thecorrectamountofradialandaxial clearance is obtained by adjusting the two bearings against each other.Besides, double row and four row tapered roller bearings are also widely used for heavy loads such as rolling mills.A single row tapered roller bearing can be in onelocated endwisedirection only.1.1.10 Spherical Roller BearingSphericalrollerbearingsareparticularlysuitableforcarrying heavy loads. They are usually of the double row design, both of the rows of the rollers having common spherical raceways in the outer ring. This feature of this bearing has great practical importance in thosecaseswhereitisdifficulttoobtainexactparallelism between the shaft and housing both axes. So these bearings are suitablewheremisalignmentcanarisefrommountingerrorsor from deflection of the shaft.Outer ringRollerCageInner ringTapered Roller BearingSpherical Roller Bearing1 4Rollingbearingpartnumbersindicatebearingtype,dimensions,tolerances,internalconstruction&otherrelated specifications. The first letter (digit) indicates the bearing type. The second digit indicates the width (or height) series & the third indicates the diameter series. The last two digits indicate the bore diameter by multiplying the last two digit by five for bearing having bore diameter original 40 mm & above. This method is applicable for metric series bearing only.Example6207 Z C3 22328Nominal bore diameter 140mmDiameter series 3Diameter series2Spherical roller bearingRadial internal Clearance C3Shielded (one side)Nominal bore diameter 35mmDiameter series 2Deep groove ball bearing0Contact angle 15Nominal bore diameter 60mmDiameter series 2Angular contact ball bearingRadial internal clearance C3Nominal bore diameter 150mmDiameter series 3Cylindrical roller bearingNU type7212C NU330C3Nominal bore diameter 20mmDiameter series 2Width series 0Tapered roller bearingTapered bore (1:12)Nominal bore diameter 30mmDiameter series 2Self Aligning ball bearing30204 1206K2. BEARING DESIGNATION5Table 2.1InterpretationWidth series Dia. Series3023033133203223233293303313323- Tapered rollerbearings001222233323302390122922932942- Spherical roller thrust bearings999234900112233NU10NU2NU22NU3NU23NU4NNU49NN30NU, NJ, NH, NUP, N, NF, NNU, NN, RNU, RN- Cylindrical rollerbearings1-2-2-4302233490686960626389023-6- Deep groove ball bearings78797072737- Angular contact ball bearings-/500/530/560../2,360/2,500500530560..2,3602,50010121517121322231,2- Self aligning ball bearingsTS1- Bearing with special heat treatment foroperating temp. up to 130CTS2- Bearing with special heat treatment foroperating temp. up to 160CTS3- Bearing with special heat treatment foroperating temp. up to 200CTM- Long life special heat-treated bearing(one ring)TMB- Long life special heat-treated bearing(both the rings)AST- Bearing with one of the componentstreated in carbo nitridingASTB- Bearing with both the componentstreated in carbo nitridingTMS2- Bearing with special heat treatment(TMB + TS2)TH2- Bearing with hign temp. tempering onboth the ringsTMH2- Bearing with special heat treatment(TMB + TH2)CR- Creep resistance bearing with single sideO-ring on outer raceCR2- Creep Resistance bearing with bothside 'O' ring on outer raceL- Light series (taper roller bearing-inch series)LM-Light medium series (taper roller bearing- inchseries)HM- Heavy medium series(taper roller bearing-inch series)M- Medium series (taper rollerbearing- inch series)H- Heavy series (non-interchangable with othercones & cups- for taper roller bearing- inch series)HH- Heavy heavy series (non-interchangable withother cones & cups for taper roller bearing-inch series)N- Taper bearing having non-standard boundarydimensionsN- Cylindrical bearing having non-standardboundarydimensionsNA- Cones mated with double cup to formdouble row non-adjustable bearing(non-interchangable with other cones & cups)X- Inch series tapered roller bearingconverted into metric seriesT- tapered roller thrust bearingJ- Inch series bearing with metric designationSP- standard bearing with deviations inOD/width from original bearing numberQJ- Four point angular contact ball bearingBB,LS,MS- Ball bearing with non-standardboundary dimensionsA- Internal design modification from A onwardB- Contact angle 40, angular contact ball bearingB- Contact angle 10 ~17, Tapered roller bearingsC- contact angle 15, angular contact ball bearingC- Contact angle 17 ~24, Tapered roller bearingsC(n),CS(n)- Deep groove ball bearing with increased load ratings (C1, C2 etc.)D- Contact angle 24 ~32, Tapered roller bearingsE- Cylindrical/Spherical roller bearing with optimzed internal geometry for increased load ratingE- Tapered roller bearingwith special crown onracewaysM Modified design (ball bearing, tapered roller bearing)X(n)- Special feature (Inner ing or outer ring) e.g. X1, X2SPL- Optimized internal design for low torqueC- Spherical roller bearing with symmetrical rollers, flangeless inner ring, a non-integral guide ring between the two rows of rollers centred on the inner ring and one pressed steel window-type cage for each roller rowCA- Spherical roller bearing with one-piece machined brass cage (double pronged), symmetrical rollers and retaining ribsCC- Similar to 'C' configuration but with enhanced roller & raceways surface finishV- Full complementry cylindrical roller bearing89023/0.6/1.5/xx0.61.5xx00010203-23230405..9296dia. code multipliedby 5 givesthe bore dia.value in mm2392302402312412222322132232- Spherical rollerbearings334342312InterpretationBorediametercodeInternal designmodification codePrefix code Bearing basic numberCode- InterpretationSeriescodeSuffix codeBearingtypeDimension series codeBore dia., mmTS4- Bearing with special heat treatment foroperating temp. up to 250C11 6Bearing Nomenclature D- Doublerow outer ringor inner ringK- Taperedbore, 1/12taper on dia.K30- Taperedbore, 1/30taper on dia.N- Locatingsnap ring groove onouter ringNR- Locatingsnap ringon outer ringG- Helicalgroove in bearing bore(Multi-rowtapered/cylindrical roller bearingcomponents)RO- Modifiedprofile on outerring surfaceRI- Modifiedprofile on innerring surfaceW- Lubricationgrooves / slotsin the sidefaces of thebearing rings(Multi-rowtapered rollerbearings)W33- Bearingwith annulargroove andthreelubricationholes in theouter ring(Sphericalrollerbearing)W33X- Similarto 'W33'configurationbut with six lubricationholesExternal design modification codeL,R- Synthetic rubber seal, contact type, on one sideLL,RR- Synthetic rubber seal, contact type, on both sideLB- Synthetic rubber seal,non-contact type, on one sideLLB- Synthetic rubber seal,non contact type, on both sideLC- Synthetic rubber sealwith guard steel plate,contact type, double lip,on one sideLLC- Synthetic rubber seal with guard steel plate, contact type,double lip , on both sideLH- Low friction syntheticrubber seal, contact type,double lip, on one sideLLH- Low friction synthetic rubber seal , contact type, double lip, on both sideLU- Synthetic rubber seal, contacttype, double lip, on one sideLLU- Synthetic rubber seal, contacttype, double lip, on both sideLLF- Synthetic rubber seal, non-contact type, on both sidesLV- Low friction syntheticrubber seal , contact type,triple lip, on one sideLLV- Low friction synthetic rubber seal, contact type, triple lip, on both sideLUA- Acrylic rubber seal (Contact type), single side with Seal groove on Inner raceLLUA- Acrylic rubber seal (Contact type), both side with Seal groove on Inner raceLUA1- Fluo-rine rubber seal, LU type, on one side, for high tempreture upto 200 CLLUA1- Fluo-rine rubber seal, LU type, on both side, for high tempreture upto 200 CLUA2- Silicone rubber seal, LU type, on one side, for extreme tempreture-100 to +200CLLUA2- Silicone rubber seal, LU type, on both side, for extreme temp. -100 to +200CRS- NBR rubber seal (Contact type), single side with no Seal groove on Inner raceRSS- NBR rubber seal (Contact type), on both with no Seal groove on Inner race RSZ- RS type rubber seal on one side, Z type pressed steel shieldZ- Metalic shield, single sideZZ- Metalic shield , double sideZA- Removable pressed steel shield, on one sideZZA- Removable pressed steel shield, on both sideP0- Normal Tolerance class (Class 0,6X)specifiedby IS/ISO/JISP6-Toleranceclass 6specifiedby IS/ISO/JISP5- Toleranceclass 5specifiedby IS/ISO/JISP4- Toleranceclass 4specifiedby IS/ISO/JISP2- Toleranceclass 2specifiedby IS/ISO/JISPX(n)- Special toleranceclass as percustomerrequirement2A- ShellAlvania-2 grease(ShellAlvania RL2)3A- ShellGadus S2-V100 3(ShellAlvaniaRL3)R2- ShellGadus S3-V220C 2(ShellRetinex LX2)2E- UnirexN3 greaseE5- NTNL4176B- PyronocN6B6C- PyronocN6CNS- NigaceWRSAB2- ShellAlbida 25C- Chevron SRIKA- KLUBERASONIC HQ 72-102KS- KluberSynthBEP 72-82EM- Noiselevel classfor electric motorapplicationEML- LowNoise bearingsC2- Clearanceless than NormalCN- NormalclearanceC3- Clearancegreater thannormalC4- Clearancegreater than C3C5- Clearancegreater than C4CNL- Radialclearance rangeon lowerside of CNC3L- Radialclearance range on lower side of C3C4L- Radialclearance rangeon lower side of C4C5L- Radialclearance range on lower side of C5CNH- Radialclearance rangeon higher side of CNC3H- Radialclearance range onhigher side of C3C4H- Radialclearance rangeon higher side of C4C5H- Radialclearance rangeon higher side of C5CS(n)- Specialradial clearanceas per customerrequirementJ- Pressedsteel cageT2X- PolyamidecageG2- Pin typesteel cageMA- Machinedbrass cage,outer ring guided(spherical/ cylindricalroller bearing)MB- Machinedbras cage,inner ring guided (spherical/ cylindricalroller bearing)Cage type codeDB- Twosingle-rowdeep groove/angularcontactball/ tapered roller bearing matched for mounting in aback-to-backarrangementDF- Twosingle-row deep groove/angularcontactball/ tapered roller bearing matched for mounting in aface-to-facearrangementDT- Twosingle-row deep groove/angularcontactball/ tapered roller bearing matched for mounting ina tandemarrangementBearing arrange-ment type codeLubricanttype codeNoise classcodeSeal/Shield type codeInternal clearancecodeToleranceclass codeSuffix code7Thefollowingproceduregivesthestepstobefollowed whenbearingsareselectedfromtheinformation contained in this catalogue. It will be found satisfactory for most applications, but to be sure, please consult the NEI AdvisoryService.1.a. Determine the speed of the bearing. b. Calculate the loads on the bearing.2. Establishifaccuratealignmentcanbeobtained betweenthebearingseating.Ifitcannot,then bearings that accommodate misalignment should be selected.3. Ifthebearingistorotateunderload,decidethelife required,calculatetherequired'C'value,andthen select suitable bearing that have comparable 'C' value.4. Checkifthebearingissuitableforthespeedand decide if grease or oil is to be the lubricant.5. Selectasuitablebearingarrangementifthisisnot alreadyknown.Makesurethatthisarrangementis suitable to seating fits.6. Finally a.decidewhether'Standard'or'ExtraPrecision limit of accuracy is required.b.selectthemostsuitablerangeofdiametric clearance.c.choose the abutment diameters.d.choose suitable closures.e.issuemountingandhandlinginstructionsforthe bearings if necessary.Please consult NEIi) Ifbearingsarerequiredincorrosion-resistingorin other special materials.ii) Iftwobearingsaremountedclosetogether,special pairing of the two bearings may be necessary to ensure that they share the load.iii) Ifthespeedandtemperatureconditionsarenot providedfortheinformationcontainedinthis catalogue.BEARING SELECTION BY NEI ADVISORY SERVICEOurEngineerswillbepleasedtorecommendthemost suitablebearingandbestmethodofmountingforany specifiedconditions.Ifyouwishtousethisserviceyou should send all information relevant to your purpose on the following basis.1 . Provideadrawingorsketchshowinglayoutofthe parts involved and position in which the bearings are tobefitted,givingsizeofshaftandanydimensions limitingthe space available.2. Include a brief description of the mechanism if this is not clear from the drawing.3. Give the speed and sufficient information, so that load on each bearing can be calculated accurately.4.Indicate any unusual features such as the possibility ofshockorvibration,unbalancedload,high temperature,orthepresenceofdirt,moistureor fumes.5. Givethebearingliferequirementsandindicate whetherthedutyiscontinuousfor24hrs.aday,or onlyintermittent.Ifintermittent,giveperiodsof running and standing.6. Iftheworkingconditionsvaryconsiderably,givethe normaldutyandalsothepeakconditionswiththe frequency and duration of peaks.7. Say whether oil or grease lubrication is to be used.8. Say whether the bearings can be lined up accurately or whether bearings with an aligning feature are required.3. BEARING SELECTION84.1 Basic Dynamic Load Rating and LifeThebasicratinglifecanalsobeexpressedintermsof kilometers for wheel bearings as showninformula below :L =xL 10S 10Where D=Wheel diameter in mmL =Basic rating life in kms. 10SThe value of f and the rating life for ball and roller bearing ncan be found by means of the diagrams given on page no. 8.4.1.1 Adjusted life rating factorThebasicliferating(90%reliabilityfactor)canbe calculatedthroughtheformulamentionedabove. However, in some applications a bearing life factor of over 90%reliabilitymayberequiredtomeetthese requirements, bearing life can be lengthened by the use of speciallyimprovedbearingmaterialorspecial constructiontechnique. Moreoveraccordingto elastohydrodynamic lubrication theory, it is clear that the bearingoperatingconditions(lubrication,temperature, speed,etc.)allexertaneffectonbearinglife.Allthese adjustmentfactorsaretakenintoconsiderationwhile calculatingbearinglifeandusingthelife,adjustment factor as prescribed in ISO 281 , the adjusted bearing life is arrived at.L =a .a .a .na1 2 3Where,L :Adjustment life rating in millions of nar evol ut i ons( 1 0 ) adj ust edf or6reliability,materialandoperating conditionsa :Reliability adjustment factor1a :Material/constructionadjustment 2factora :Operating condition adjustment factor34.1.1.1 Life adjustment factor for reliability a1Thevaluesforthereliabilityadjustmentfactora(fora 1reliability factor higher than 90% ) can be found from table given below :-Reliability adjustment factor valuesFormula for factor a1a=4.48[Ln(100/R)]2/31R=ReliabilityL=Log Factor (Base 'e')nCP()ptD1000Reliability909596979899LnL10L5L4L3L2L1Reliability factor a11.000.620.530.440.330.21( )1/pCP( )p1060n6pCP( )4. LOAD RATING AND LIFE90Life adjustment value for operating temperatureC As the operatingtemperatureofthebearingincreases,the hardnessofthebearingmaterialdecreases.Thus,the bearinglifecorrespondinglydecreases.Theoperating temperature adjustment values are shown in abovefigure.4.1.1.2 Life adjustment factor for material construction a2Thevalueforthebasicdynamicloadratinggiveninthe bearingdimensiontablesareforbearingsconstructed from NEI's continued efforts at improving the quality and life of its bearings.Accordingly, a= 1 is used for the adjustment factor in the 2formula.Forbearingsconstructedofspeciallyimproved materials or with special manufacturing methods, the life adjustment factor ain life can have a value greater than 2one.Whenhighcarbonchromiumsteelbearings,whichhave undergoneonlynormalheattreatment,areoperatedfor longperiodsoftimeattemperaturesinexcessof120C considerable dimensional deformation may take place. For thisreason,therearespecialhightemperaturebearings whichhavebeenheattreatedfordimensionalstability. This special treatment allows the bearing to operate at its maximum operational temperature without the occurrence ofdimensionalchanges.However,thesedimensionally stabilizedbearings,designatedwitha'TS'prefixhavea reduced hardness with a consequent decrease in bearing life. The adjusted life factor values used in life formula for such heat-stabilized bearing can be found in Table given below4.1.1.3 Life adjustment factor afor operating conditions 3The operating conditions life adjustment factor ais used3toadjustforconditionssuchaslubrication,operating temperature,andotheroperationfactorswhichhavean effect on bearing life.Generallyspeakingwhenlubricatingconditionsare satisfactorythea factorhasavalueofone,andwhen 3lubricating conditions are exceptionally favourable, and all other operating conditions are normal acan have a value 3greater than one.However,whenlubricatingconditionsareparticularly unfavorable and oil film formation on the contact surfaces oftheracewayandrollingelementsisinsufficient,the value of abecomes less than one. This insufficient oil film 3formation can be caused, for example, by the lubricating oil viscositybeingtoolowfortheoperatingtemperature (below 13 mm /s for ball bearing and below 20mm /s for 2 2roller bearings); or by exceptionally low rotational speed [n (r/min)xdp(mm)lessthan10,000].Forbearingsused under special operating conditions, please consult NEI.TS2TS3TS4Code160200250Max. operatingtemperatureC00.870.680.30Adjustment factora2100 150 200 250 300Life adjustment value a31.00.80.60.40.2Operating Temperature CBall bearings Roller bearingsnfnL10hrev/min hfh nfnL10hrev/min hfh60000 0.082400003000020000150000.090.120.140.1010000800060004000300020000.160.180.220.240.260.2010001500 0.280.308006004003002001500.350.40.50.60.70.80.91.11.21.31.4100806040302015101.01.49 2000.7460000400003000020000150001000080000 5.454324.53.52.5 8000600040003000200015001.91.81.71.61.51.41.31.21.110009008007006005004003001.00.950.900.850.800.75101.441.41.11.21.31.00.90.80.70.60.510080604030201510008006004003002001500.240.260.280.300.350.4800060004000300020001500100000.200.220.140.160.180.1260000400003000020000150000.1068000060000400003000020000150004.543.534.6100002.580006000400030002000150021.91.81.71.61.51.41.310009008007006005004003001.21.11.00.950.900.850.80200 0.76Fig. Diagram for basic rating life1 104.2 Basic Static Load RatingThe Static load is defined as a load acting on a non-rotating bearing.Permanentdeformationappearsinrolling elementsandracewaysunderstaticloadofmoderate magnitudeandincreasesgraduallywithincreasingload. Thepermissiblestaticload,therefore,dependsuponthe permissible magnitude of permanent deformation.Experienceshowsthattotalpermanentdeformationof 0.0001 times of the rolling element diameter, occurring at themostheavilyloadedrollingelementandraceway contactcanbetoleratedinmostbearingapplications without impairment of bearing operation.Incertainapplicationswheresubsequentrotationofthe bearingisslowandwheresmoothnessandfriction requirementsarenottooexacting,amuchgreatertotal permanentdeformationcanbepermitted.Ontheother hand,whereextremesmoothnessisrequiredorfriction requirementsarecritical , l ess-total permanent deformation may be tolerated.For purpose of establishing comparative ratings, the basic static load rating therefore, is defined as that static radial load which corresponds to a total permanent deformation ofrollingelementandracewayatthemostheavily stressed contact set at 0.0001 times ofthe rolling element diameter.Itappliestopureradialloadforradialbearing and pure axial load for thrust bearing.In single row angular contact bearing, the basic static load ratingrelatestotheradialcomponentoftheload,which causes a purely radial displacement of the bearing rings in relation to each other.Themaximumappliedloadvaluesforcontactstress occurringattherollingelementandracewaycontact points are as follows :For ball bearing4200MPa For self aligning ball bearing 4600MPa For roller bearing 4000MPaThestaticequivalentloadisdefinedasthatstaticradial load,which,ifappliedtoDeepGrooveBallbearings, Angular Contact or Roller bearings would cause the same total permanent deformation at the most heavily stressed rolling element and raceway contact as that which occurs under the actual conditions of loading. For thrust bearings the static equivalent load is defined as that static, central, purely axial load which, if applied, would cause the same total permanent deformation at the most heavily stressed rolling element and raceway contact as that which occurs under the actual condition of loading.114.3 Life Factor for ApplicationsLife factor fhServiceRequirementsMachinesusedoccasionallyEquipment forshort period orintermittent serviceinterruptionpermission< 1.0 1.0-2.0 2.0-2.5 2.5-3.0 3.0-3.5 3.5-4.0 4.0-5.0 5.0DoormechanismsmeasuringinstrumentsMedicalequipmentHouseholdappliances,electric handtools,agriculturemachines,lifting tacklesin shopIntermittent servicemachines highreliabilityPower stationauxiliaryequipment,constructionmachines,Crane sheaveselevators,Conveyors,deck cranes,CranesCraneSheavesMachines usedfor 8 hours a daybut not alwaysin fulloperationAutomobiles,motorcycles,internalgrindingspindles, oretub axlesBuses, TrucksWood workingmachines,gear drives,plunger pumpsvibratingscreensSmall electricmotors,grindingspindles,boringmachinespindlesrotarycrushers,industrialWagon axlesLathe spindles,press flywheelsprintingmachinesAgitatorsimportant gearunitsMachines fullyused for 8hours Small rollingmill rollnecksLarge rollingmill rollnecks,rolling milltable rollers,excavatorscentrifugalseperatorscontinuousoperationconveyorsIndustrialelectricmotors,blowers, airconditionersstreet car orfreight wagonaxles, generalmachinery inshop,continuousoperationcranesLarge electricmotors, rollingmill gear unitsplasticextruders,rubber-plasticscalendar rolls,railway vehicleaxles, tractionmotors,conveyors ingeneral useLocomotiveaxles, railwayvehicle gearunits, falsetwist textilemachinesMachinescontinuouslyused for 24hours a dayLoom Electric motorsin shopcompressors,pumpsTextilemachines,mine winches,iron industryconveyorsPapermakingmachine, mainrollsmachinesMachinescontinuouslyused for 24hours a daywith maximumreliabilitypumpsPower stationequipments,watersupplyequipments forurban areas,mine drain12135. ACCURACY AND TOLERANCESTheaccuracyofrollingbearingsisclassifiedas dimensional accuracy and running accuracy.Dimensionalaccuracyindicatesthetoleranceand tolerancelimitsofboundarydimensionsaswellasthe tolerancelimitsofwidthvariationsandofthetaperof taperedbore.Runningaccuracyindicatesthetolerance limits of outside cylindrical surface runout with side, radial runout, side runout with bore and axial runout.5.1 Dimensional AccuracyDimensionalaccuraciesofabearingincludethe acceptabledeviationsforbearingboundarydimensions i.e.borediameter,outerdiameter,assembledbearing width. Form errors of individual rings are also included in dimensional accuracies. Inner Ring form errors are- single planeborediametervariation-Vdp(roundness),mean singleplaneborediametervariation-Vdmp(taper),width variation-VBs(parallelismofsidefaces),raceway roundness & taper, flatness of faces and Outer Ring form errorsare-singleplaneoutsidediametervariation-VDp (roundness),meansingleplaneoutsidediameter variation-VDmp(taper),widthvariation-VCs(parallelism of side faces), raceway roundness & taper, flatness of faces.5.2 Running Accuracy(As per ISO: 1132-1 & 2)5. .1 Radial Runout 2aRadialrunoutofassembledbearinginnerring,Kia (radialbearing):Differencebetweenthelargestand the smallest of the radial distances between the bore surface of the inner ring, in different angular positions of this ring, and a point in fixed position relative to the outerring.Attheangularpositionofthepoint mentioned,oroneachsideandclosetoit,rolling elements are to be in contact with both the inner and outerringracewaysand(inataperedrollerbearing) theconebackfacerib,thebearingpartsbeing otherwise in normal relative positions.a =Load on inner ringbRadialrunoutofassembledbearingouterring,Kea (radialbearing):Differencebetweenthelargestand the smallest of the radial distance between the outside surface of the outer ring, in different angular positions of this ring, and a point in a fixed position relative to the innerring.Attheangularpositionofthepoint mentioned,oroneachsideandclosetoit,rolling elements are to be in contact with both the Inner and outerringracewaysand(inataperedrollerbearing) theconebackfacerib,thebearingpartsbeing otherwise in normal positions.a =Load on inner ringKia MEASUREMENT OF BALL BEARINGKia MEASUREMENT OF TAPER ROLLER BEARINGa =Load on inner ringKea MEASUREMENT OF BALL BEARINGa =Load on inner ringKea MEASUREMENT OF TAPER ROLLER BEARING5.2.2 Face runout with racewayaAssembledbearinginnerringfacerunoutwith raceway,Sia(groovetyperadialballbearing): Differencesbetweenthelargestandthesmallestof the axial distances between the reference face of the inner ring, in different relative angular positions of this ring, at a radial distance from the inner ring axis equal to half the inner ring raceway contact diameter, and a point in a fixed position relative to the outer ring. The inner and the outer ring raceways are to be in contact with all the balls.a =Load on inner ringSia MEASUREMENT OF BALL BEARINGa =Load on inner ringSia MEASUREMENT OF TAPER ROLLER BEARINGbAssembledbearingconebackfacerunoutwith raceway,Sia(taperedrollerbearing):Difference betweenthelargestandthesmallestoftheaxial distancesbetweentheconebackface,indifferent angular positions of the cone, at a radial distance from the cone axis equal to half the cone raceway contact diameter and a point in a fixed position relative to the cup.Theconeandcupracewaysandtheconeback faceribaretobeincontactwithalltherollers,the bearingpartsbeingotherwiseinnormalrelative positions.a =Load on inner ringSea MEASUREMENT OF BALL BEARINGdAssembled bearing cup back face runout with raceway Sea(taperedrollerbearing):Differencebetweenthe largest and the smallest of the axial distances between the cup back face, in different angular positions of the cup, at a radial distance from the cup axis equal to half thecupracewaycontactdiameter,andapointina fixed position relative to the cone. The cone and cup racewaysandtheconebackfaceribaretobein contactwithalltherollers,thebearingpartsbeing otherwise in normal relative positions.CAssembledbearingouterringfacerunoutwith racewaySea(groovetyperadialballbearing): Difference between the largest and the smallest of the axial distances between the reference face of the outer ring, in different relative angular positions of this ring, ataradialdistancefromtheouterringaxisequalto halftheouterringracewaycontactdiameter,anda point in a fixed position relative to the inner ring. The inner and outer ring raceways are to be in contact with all the balls. a =Load on inner ringSea MEASUREMENT OF TAPER ROLLER BEARING145.2.3 Face runout with boreFacerunoutwithbore,Sd(innerringreferenceface): Difference between the largest and the smallest of the axial distances between a plane perpendicular to the ring axis and the reference face of the ring, at a radial distance from the axial of half the inner ring raceway contact diameter.Sd MEASUREMENT5.2.4 Raceway parallelism with faceRaceway parallelism with face, Sior Se (inner or outer ring of groove type radial ball bearing reference face) : Difference between the largest and the smallest of the axial distances between the plane tangential to the reference face and the middle of the raceway.Si MEASUREMENT5.2.5 Outside surface inclinationVariationofoutsidesurfacegeneratrixinclinationwith face,SD(outerringbasicallycylindricalsurfacereference face):Totalvariationoftherelativepositioninaradial direction parallel with the plane tangential to the reference face of the outer ring, of points on the same generatrix of the outside surface at a distance from the side faces of the ringequaltothemaximumlimitsoftheaxialchamfer dimension.Se MEASUREMENTSD MEASUREMENT15Bearing typeApplicable standardsTolerance classes & comparison among standardsReference table no.Radial ball bearings ISO 492 Class 0,6X Class 6 Class 5 Class 4 Class 2 Table 5.3.1, 5.3.2JIS B 1514 Class 0,6X Class 6 Class 5 Class 4 Class 2 DIN 620 P0 P6 P5 P4 P2 ABMA Std.20 ABEC-1 ABEC-3 ABEC-5 ABEC-7 ABEC-9 Radial roller bearings (except tapered roller bearings)ISO 492Class 0,6X Class 6 Class 5 Class 4 Class 2 Table 5.3.1, 5.3.2JIS B 1514 Class 0,6X Class 6 Class 5 Class 4 Class 2 DIN 620 P0 P6 P5 P4 P2 ABMA Std.20 RBEC-1 RBEC-3 RBEC-5 - - Tapered rollerbearings metric series ISO 492 Class 0,6X Class 6 Class 5 Class 4 Class 2 Table 5.4.1, 5.4.2JIS B 1514 Class 0,6X Class 6 Class 5 Class 4 Class 2 DIN 620 P0 P6 P5 P4 P2 ABMA Std.19.1 Class K Class N Class C Class B Class A inch series ISO 578 Class 4 -

Class 3 Class 0 Class 00 Table 5.5.1, 5.5.2, 5.5.3JIS B 1514 Class 0,6X Class 6 Class 5 Class 4 Class 2 DIN 620 P0 P6 P5 P4 P2 ABMA Std.19 Class 4 Class 2 Class 3 Class 0 Class 00 Thrust bearings (all types)ISO 199 Normal class Class 6 Class 5 Class 4 -

Table 5.6.1, 5.6.2JIS B 1514Class 0,6XClass 6Class 5Class 4Class 2 DIN 620P0P6P5P4P2 ABMA Std. - - - - -Ki MEASUREMENT5.2.6 Thickness-variationaInnerringracewaytoborethicknessvariation,Ki (radialbearing):Differencebetweenthelargestand the smallest of the radial distances between the bore surface and the middle of a raceway on the outside of the ring.Ke MEASUREMENTbOuterringracewaytooutsidesurfacethickness variation, Ke (radial bearing) : Difference between the largestandthesmallestoftheradialdistances betweentheoutsidesurfaceandthemiddleofa raceway on the inside of the ring.Table for 5.1 & 5.2 Bearing Types, Applicable standards and Comparison of tolerance classes among all standards165.Tolerances For Radial Bearings3 (except Tapered Roller Bearings) (As per ISO 492, IS 5692)-Symbolsd=bearing bore diameter, nominald =basic diameter at theoretical large end of a basically tapered bore 1Ads = deviation of a single bore diameterAdmp = single plane mean bore diameter deviation(for a basically tapered bore Admp refers only to the theoretical small end of bore)Ad1mp = mean bore diameter deviation at theoretical large end of a basically tapered bore V =bore diameter variation in single radial plane dp V= mean bore diameter variation ( this applies only to a basically cylindrical bore)dmp =half of the total angle of inner ring bore (for taper bore bearings)D= bearing outside diameter, nominalD= outer ring flange outside diameter, nominal1ADS = deviation of single outside diameterADmp = single plane mean outside diameter deviation V= outside diameter variation in a single radial planeDpV= mean outside diameter variation DmpB= inner ring width, nominalABS = deviation of single inner ring width V= inner ring width variation BSC = outer ring width, nominalC= outer ring flange width, nominal1ACS= deviation of single outer ring widthAC1S = deviation of a single outer ring flange width V= outer ring width variation CSV= outer ring flange width variation C1SK = radial runout of assembled bearing inner ringiaK = radial runout of assembled bearing outer ring eaS= inner ring reference face (back face, where applicable) runout with bore dS = variation of bearing outside surface generatix inclination with outer ring reference face (back face)DS =variation of bearing outside surface generatix inclination with flange back face D1S= assemble bearing inner ring face (backface) runout with racewayiaSea = assembled bearing outer ring face (backface) runout with racewaySea1 = assembled bearing outer ring flange backface runout with raceway11 17BOD OdDBdrrTolerances for Normal Tolerance Class Radial Bearings (Except Tapered Roller Bearings) METRIC SERIESTABLE 5. .1: INNER RING 3Values in micronsd (mm)A dmpOverKi aABSVBSIncluding High Low MaxDiameter SeriesVdp9 0,1 2,3,4Max Max High Max LowAll Normal ModifiedVdmp2.510183050801201802503154005006308001018305080120180250315400500630800100000000000000000-8-8-10-12-15-20-25-30-35-40-45-50-75-10010101315192531384450566394125881012192531384450566394125668911151923263034385575668911151923263034385575101013152025304050606570809000000000000000-120-120-120-120-150-200-250-300-350-400-450-500-750-1000-250-250-250-250-380-380-500-500-500-630----1520202025253030354050607080TABLE 5.3.2: OUTER RINGD (mm)OverKeaAcsAc1sIncluding High Low MaxDiameter SeriesVDPOpen Bearings0,1 2,3,4Max Max High Max LowVDmp61830508012015018025031540050063080010001250160020001830508012015018025031540050063080010001250160020002250000000000000000000-8-9-11-13-15-18-25-30-35-40-45-50-75-100-125-160-200-2501012141619233138445056639412515520025031089111319233138445056639412515520025031067810111419232630343855759412015019010121620263038-----------6781011141923263034385575941201501901515202535404550607080100120140160190220250Identical to and ABSVof Inner ring ofBSsame bearingMaxCappedBearing9 2,3,4Values in micronsA DmpVcsVc1s18 Tolerances ForRoller Bearings Tapered Symbols(Applicable for metric and inch series)d=bearing bore diameter, nominalAds = deviation of a single bore diameterAdmp = single plane mean bore diameter deviation (for a basically tapered bore Ddmp refers only to the theoretical small end of bore)Vdp =bore diameter variation in single radial planeVdmp = mean bore diameter variation ( this applies only to a basically cylindrical bore )D = bearing outside diameter, nominalD1= outer ring flange outside diameter, nominal ADS = deviation of a single outside diameterADmp = single plane mean outside diameter deviation V= outside diameter variation in a single radial planeDPV= mean outside diameter variation DmpB = inner ring width, nominalT=bearing width, nominalATs = deviation of the actual bearing widthT1=effective width of inner sub-unit, nominalABs=deviation of single inner ring widthC= outer ring width, nominalACs= deviation of single outer ring widthK = radial runout of assembled bearing inner ringiaK = radial runout of assembled bearing outer ring eaSd = inner ring reference face (backface, where applicable) runout with boreSD= variation of bearing outside surface generatix inclination with outer ring reference face (back face) Sia = assemble bearing inner ring face (backface) runout with raceway Sea = assembled bearing outer ring face (backface) runout with racewayAT1s=deviation of the actual effective width of inner sub unitT2=effective width of outer sub-unit, nominalT2s= deviation of the actual effective width of outer sub-unitSYMBOLS FOR TAPERED ROLLER BEARINGSMASTER OUTER SUB-UNITODOdBCTT 1T 2MASTER INNERSUB-UNIT5.4 Tolerance For Tapered Roller Bearing (METRIC SERIES) NORMAL TOLERANCE CLASS19Metric Series (ISO 492 / IS 7460)A dmpd (mm)Over Including High Low Max Max MaxVdp VdmpKia10183050801201802503154005006308001000125018305080120180250315400500630800100012501600000000000000000-12-12-12-15-20-25-30-35-40-45-50-75-100-125-16012121215202530354045507510012516099911151923263034385675941201518202530355060708090105120140160TABLE 5.4.1- INNER RINGTolerance value in micronsA DmpD (mm)Over Including High Low Max Max MaxVDp VDmpKea1830508012015018025031540050063080010001250160030508012015018025031540050063080010001250160020000000000000000000-12-14-16-18-20-25-30-35-40-45-50-75-100-125-160-20012141618202530354045507510012516020091112141519232630343856758412015018202535404550607080100120140165190230TABLE 5.4.2 - OUTER RINGTolerance value in microns20TABLE 5.4.3WIDTH - INNER AND OUTER RING, SINGLE ROW BEARING AND SINGLE ROW SUBUNITSOver Including High High High High High Low Low Low Low Low10183050801201802503154005006308001000125018305080120180250315400500630800100012501600000000000000000000000000000000+200+200+200+200+200+350+350+350+400------+100+100+100+100+100+150+150+150+200------+100+100+100+100+100+200+200+200+200-------120-120-120-150-200-250-300-350-400-450-500-750-1000-1200-1500-120-120-120-150-200-250-350-350-400-450-500-750-1000-1200-15000000-200-250-250-250-400------0000-100-150-150-150-200------0000-100-100-100-100-200------A Bs A Cs A Ts A T1s A T2sdmmTolerance value in microns21d(mm)Overall width/height deviation of assembled double rows tapered roller bearings Overall width/height deviation of assembled four rowstapered roller bearingsOver Including High Low High Low 10 18 - - - - 18 30 - - - - 30 50 +240 -240 - - 50 80 +300 -300 - - 80 120 +400-400 +500 -500120 180 +500 -500 +600 -600180 250 +600 -600 +750 -750 250 315 +700 -700 +900 -900315 400 +800 -800 +1000 -1000 400 500 +900 -900 +1200 -1200500 630 +1000 -1000 +1200 -1200630 800 +1500 -1500 +1500 -1500800 1000 +1500 -1500 +1500 -1500Table 5.4.4WIDTH DEVIATIONS OF ASSEMBLED DOUBLE ROW AND FOUR ROW TAPERED ROLLER BEARINGS5.5 Tolerance For Tapered Roller Bearings (Inch Series) (ISO 578) ToleranceclassOver Including High High Low Lowd A ds A BSHigh LowA TsInch Value in 0.0001 inchmm Value in 0.001 mm43000430000(3)(4)000076.2101.600034666676.2101.6152.4152.4152.4152.4+5+10+10+5+5+3+13+25+25+13+13+8000000000000+30+30+30+30+30+30+76+76+76+76+76+76-100-100-100-100-100-100-254-254-254-254-254-254+80+80+140+80+80+80+203+203+356+203+203+20300-100-80-80-8000-254-203-203-203NOTE : The Cage may project beyond the bearing width.TABLE 5. .1INNER RING BORE, INNER RING WIDTH AND BEARING WIDTH 5ToleranceclassOver Including High High Low LowD A DS A csKiaKeaMaxSiaSeaMaxInch Value in 0.0001 inchmm Value in 0.001 mm43000430000(12)0(12)000(304.8)0(304.8)00121412141210.5304.8355.6304.8355.6304.8266.7+10+20+5+10+5+3+25+51+13+25+13+8000000000000+20+20+20+20+20+20+51+51+51+51+51+51-100-100-100-100-100-100-254-254-254-254-254-2542020371.50.755151818422020371.50.75515181842NOTE : The Tolerance for the outside diameter of an outer ring flange D1 is h9 (See ISO 286)TABLE 5. .2 OUTER RING OUTSIDE DIAMETER, OUTER RING WIDTH AND ASSEMBLED BEARING RUNOUTS 5Inch Value in 0.0001 inchmm Value in 0.001 mmOver Including High High Low Low-4-(101.6)46101.6152.4+40+60+102+1520-600-152+40+80+102+2030-400-102d A T1s A T2sTABLE 5. .3 EFFECTIVE WIDTH OF SUB-UNIT, TOLERANCE CLASS 4 (Normal Tolerance Class) 5225. 6 Tolerance For Thrust Ball and Roller Bearings (As per ISO 199)-Symbolsd=bore diameter ofshaft washer, single-direction bearing d =2 bore diameter ofshaft washer, double-direction bearing Admp = deviation of mean bore diameter in a single plan of shaft, single-direction bearingAd2mp = deviation of mean bore diameter in a single plan of shaft, double-direction bearingD=outside diameter of housing washer ADmp = deviation of mean outside diameter in a single of plan of housing washerSe=variation in thickness between housing washer raceway and back facenote - Applies only to ball thrust bearings and cylindrical roller thrust bearings with 90contact angleSi= variation in thickness between shaft washer receway and back facenote - Applies only to ball thrust bearings and cylindrical roller thrust bearings with 90contact angleT=bearing height, single-direction bearingT =bearing height, double direction bearing 1 ATs = deviation of the actual bearing height, single-direction bearingAT1s = deviation of the actual bearing height, double-direction bearingVdp =variation of bore diameter in a single plane of shaft washer, single-direction bearingVd2p =variation of bore diameter in a single plane of shaft washer, double-direction bearingVDp = variation of outside diameter in a single radial plane of housing washerSingle direction thrust bearingDouble direction thrust bearing23Table 5.6.1 SHAFT WASHER AND BEARING HEIGHT(AS PER ISO 199/NORMAL TOLERANCE CLASS)> low >max. high101830508012018025031540050063080010001250160020002500 NOTE : For double-direction bearings the values apply only up to and including= mm. D 360A Dmp VDp Se D mmmax.18305080120180250315400500630800100012501600200025002800000000000000000000-11-13-16-19-22-25-30-35-40-45-50-75-100-125-160-200-250-300810121417192226303438557595120150190225Identical to Si ofshaft washer ofsame bearingd and d2> high low-183050801201802503154005006308001000125016002000NOTE : For double-direction bearings the values apply only up to and including d =190mm. 2>A dmp,A d2mp Vdp, Vd2p Simax. max.D Tslow highD T1slow high183050801201802503154005006308001000125016002000250000000000000000000-8-10-12-15-20-25-30-35-40-45-50-75-100-125-160-200-250689111519232630343855759512015019010101010151542025303035404550607590+20+20+20+20+25+25+30+40+40+50+60+70+80+100+120+140+160-250-250-250-300-300-400-400-400-500-500-600-750-1000-1400-1600-1900.-2300+150+150+150+150+150+200+250-----------400-400-400-500-500-600-600----------Tolerance values in micrometers Tolerance values in micrometers Table 5.6.1 SHAFT WASHER AND BEARING HEIGHT(AS PER ISO 199/NORMAL TOLERANCE CLASS)245.7Chamfer Dimensions Limits For Roller Bearings(AS PER ISO : 582 / IS:5934)Cone (d) or Cup (D) back face chamferd or D rsmaxrsmin > MassKg(Approx.)Open TypeShieldNonLow torque Contact type TMB TS2 ASTBSnap Ring Snap RingBearing NumbersType Contacttype Groove676000zz--RSS-TS2---0.0196200zz--RSS-----0.036300zz--LLU-----0.0536901---RSS-----0.0116001zz--LUX2-----0.0216201zz--RSS/LUX2-----0.0366301zz--LLU-----0.061613963---------0.0726902ZZ--RSS-----0.0186002zz-LLHLLUTMB----0.0316002---------0.0256202zz--LLUTMB----0.0466302zz--RSS-----0.084BB1002---------0.0846903---------0.01616003---------0.0326003zz-LLHLLU-----0.0396203zzLLVLLHLLUTMB----0.0656203C--LLH------0.0686203A/42----TMB----0.0786303zzLLVLLHLLU-----0.11663/18---LLU--AST--0.1966904---------0.03616004---------0.04998204---------0.0526004zz-LLHLLU-----0.0696204zz-LLHLLUTMB--N-0.1036204M-------N-0.1056204/2B--LLH-TMB----0.11BB1003---------0.121838002---------0.1256304zz--RSSTMB-ASTN-0.14720x55x11---------0.13620x56x17-----TS2-N- BB1063---------0.2546304/22----TMB----0.136304/22M---LLUTMBTS2---0.1563/22---------0.164METRIC SERIESSINGLE ROW RADIAL BALL BEARING68Dynamic Static Dynamic StaticGrese Oild D B B C C C C Open TypemmKN KgfBoundry DimensionsLimiting Speed(rpm)IR ORrsmin r or r orBearingNumbersLoad Rating42990.37.054.557194641600019000690547880.38.355.18515201500018000160054712120.6105.8510195961500018000600552990.611.66.51182663140001700098205255215151147.8514278001300015000620556151525X56X15 6212120.619.511.319881152135001600018380016217171.121.210.921611111120001400063057217171.121.210.9216111111200014000SP72X25X1725.57219191.127.114.5276214781000012000872489581616117.99.751825994120001400062/28286818181.126.71427221427110001300063/287218181.525.715.42620157098001100072x28x1872181822.214.622631488980011000BB1087551313113.28.3134684613000150006006551111113.28.313468461300015000SP60063055660.311.27.351142749130001500016006621616119.511.319881152110001300062067219191.127.114.527621478100001200063069023231.540.622.84139232478009200640662990.311.78.2119383612000140001600762141411610.31631105012000140006007357217171.125.715.32620156098001100062078021211.533.419.23405195788001000063078026211.533.419.234051957880010000SP630710025251.148.327.84924283478009100640768990.311.18.551131871100001200016008681515116.811.51713117210000120006008408018181.129.1182966183587001000062089023231.540.622.9413923247800920063089023231.544.326452026537900100006308C11027271.161.9386310327470008200640875161612115.121411539920011000600975121212115.121411539920011000SP6009458519191.132.720.53333209078009200620910025251553325403326270008200630912029291.171.544.472384526630074006409With snap ring D1 = +< >SINGLE ROW RADIAL BALL BEARING69MassKg(Approx.)Open TypeShieldNonLow torque Contact type TMB TS2 ASTBSnap Ring Snap RingBearing NumbersType Contacttype Groove6905---------0.04216005---------0.066005zz-LLHRSSTMB----0.07898205---------0.0856205zz--LLUTMB--N-0.12925X56X15 ZZ---------1838001---------0.1766305zz--LLUTMB--NNR0.225SP72X25X17---------0.37872489---------0.36362/28--LLHLLUTMB--NNR0.17163/28---LLUTMB--N-0.28472x28x18---------0.35BB1087----TMB----0.366006zz- LLH LLU---NNR0.116SP6006---------0.116006---------0.0916206zz-LLHRSSTMB--NNR0.2016306zz- LLH LLUTMB--NNR0.3346406-------NNR0.69816007---------0.116007zz--RSSTMB----0.1546207zz--LLUTMB-ASTBNNR0.286307zz-LLHLLUTMBTS2-NNR0.457SP6307---LLU-----0.4776407---------0.92516008---------0.136008zz--LLU---NNR0.1956208zz- LLHLLUTMB--NNR0.3576308zz- LLHLLUTMB--NNR0.5996308C---LLU-----0.626408-------NNR1.216009zz--LLU---NNR0.237SP6009---------0.26209zz------NNR0.46309zz-LLH -TMBTS2-NNR0.8256409---------1.55METRIC SERIESSINGLE ROW RADIAL BALL BEARING70Dynamic Static Dynamic StaticGrese Oild D B B C C C C Open TypemmKN KgfBoundry DimensionsLimiting Speed(rpm)IR ORrsmin r or r orBearingNumbersLoad Rating8010100.613.211.313461152840098001601050801616121.816.6222216928400980060109020201.13523.2356823657100830062101102727261.938631038746400750063109018181528.321.3288521717700900060115510021211.543.429.3442429876400760062111202929271.544.4728845265800680063119518181.131.6624.22322824697000830060126011022221.550.7335198336460007000621213031312.181.8528338530154006300631210018181.530.525.2310925696500770060136512023231.557.240.15831408855006500621312523231.557.240.158314088550065006213/12514033332.192.159.8938860694900580063131001616123.721.1241821536500770069147011020201.138.5930.433935310261007100601412524241.562.244.16340449551006000621415035352.1104.1368.0410618693846005400631411520201.140.1833.18409733835700670060157513025251.562.144.96330457748005600621516037372.1113.2176.971154478484300500063158012522221.147.5439.79484740575300620060161402626271.5554.37296553745005300621617039392.1122.786.5125118820400047006316851302222247.340.154823409442005000601718041413132.4296.59135039849380045006317901603030295.9871.469687728640004700621819043433142.33107.2314513109343600420063189520045453156.36121.98159441243833003900631915024241.564.4656.136573572342005000602010018034342.1122.1492.7212454945435004200622021547473172.65140.3917605143153200370063201051602626271.963.36733164604000470060211702828281.872.88341742338004500602211020038382.1110.82100.43113001024132003800622224050503204.9178.32089318181290034006322With snap ring D1 = +< >SINGLE ROW RADIAL BALL BEARING71MassKg(Approx.)Open TypeShieldNonLow torque Contact type TMB TS2 ASTBSnap Ring Snap RingBearing NumbersType Contacttype Groove16010---------0.196010zz--LLU---NNR0.2626210zz- LLHLLUTMBTS2-NNR0.4576310zz--LLU---NNR1.0656011---LLU-----0.396211zz--LLUTMB--NNR0.5976311zz--------1.3726012---------0.4146212---LLU-TS2-N-0.7836312zz--------1.6896013-- LLHLLU-----0.4256213zz------NNR0.986213/125---RSS TMB----1.176313zz--LLU----NR2.0916914---------0.3346014---------0.4416214---------1.0566314zz--------2.526015zz--RSS-----0.6496215---------1.1396315---RSS-----3.026016zz--------0.856216---------1.46316zz--RSS-----3.596017---------0.926317zz--------4.236218---------2.156318zz--------4.916319---------5.676020zz--------1.156220---------3.146320zz--------76021---------1..596022---------1.96222---------4.366322---------8SINGLE ROW RADIAL BALL BEARING(SPECIAL BEARINGS)METRIC SERIESrDdBrBALL BEARINGRmax.d D B r dhOil Grease Dsmin. min. max.StaticCoDynamicCAbutment andFillet DimensionsBearingNumberLimiting Speed(rpm)Basic Load Ratings(N)Boundry Dimensions(mm)Boundry Dimensions(mm)Bearing Basic Load Ratings Type MassKg.(approx.)Dynamic'C'Static'C.'d D B r6309201281060/630816000176000Ball Bearing280.002552181.51150062001300015000BB10043047125521811150062001300015000BB101630461256521.522130098001200014000BB101432561408250-2910017200870010000BB1019---4585271.6325001980078009200BB100551701BDdBB1004Bd DBB1019BDdBB1014DdBBB1005D dBBB101672SINGLE ROW RADIAL BALL BEARINGDrdBrRdhRDsINCH SERIES9.525(0.3750)12.700(0.5000)15.875(0.6250)19.050(0.7500)22.225(0.8750)25.400(1.0000)28.575(1.1250)2490403061005550960011600738013700159009400129001533010050177002125019450270001110201027502860455056504000665078505220680082705900970011050113001435032000235002000019000190001600016000150001450015000140001300014000125001200012000105004400027000240002300023000180001800018000170001800017000150001700015000140001400012500S3S5LS5S7LS7MS7S8LS8MS8S9LS9MS9S10LS10MS10LS11MS110.0100.0190.0370.0330.0590.1200.0470.1100.1220.0780.1250.2130.0830.1660.2670.2250.36322.225(0.8750)28.575(1.1250)33.338(1.3125)34.925(1.3750)39.688(1.5625)46.038(1.8125)41.275(1.6250)47.625(1.875)50.800(2.0000)47.625(1.8750)50.800(2.0000)57.15(2.2500)50.800(2.0000)57.15(2.2500)63.5(2.5000)63.500(2.5000)71.43(2.8125)5.556(0.2188)6.350(0.2500)9.525(0.3750)7.144(0.2813)11.113(0.4375)15.875(0.6250)7.938(0.3125)14.288(0.5625)17.463(0.6875)9.525(0.3750)14.288(0.5625)17.463(0.6875)9.525(0.3750)15.875(0.6250)19.050(0.7500)15.875(0.6250)20.638(0.8125)0.4(0.02)0.4(0.02)0.8(0.03)0.8(0.03)0.8(0.03)1.6(0.06)0.8(0.03)1.6(0.06)1.6(0.06)0.8(0.03)1.6(0.06)1.6(0.06)0.8(0.03)1.6(0.06)2.4(0.09)1.6(0.06)2.4(0.09)12.7(0.5)17.5(0.69)17.5(0.69)20.6(0.81)21.1(0.83)23.1(0.91)26.2(1.03)25.9(1.02)26.9(1.06)30.2(1.19)29.7(1.17)30.2(1.19)32.5(1.28)33.3(1.31)34.8(1.37)38.1(1.50)38.1(1.50)18.3(0.72)23.8(0.94)29.5(1.16)28.6(1.13)34.8(1.37)39.6(0.56)35.7(1.41)41.1(1.62)43.7(1.72)40.5(1.59)44.5(1.75)50.0(1.97)42.9(1.69)50(1.97)54.5(2.14)56.4(2.22)61.5(2.42)0.3(0.01)0.3(0.01)0.5(0.02)0.5(0.02)0.5(0.02)1.1(0.04)0.5(0.02)1.1(0.04)1.1(0.04)0.5(0.02)1.1(0.04)1.1(0.04)0.5(0.02)1.1(0.04)1.6(0.06)1.1(0.04)1.6(0.06)Boundry DimensionsBasic Load Rating(N)Limiting Speed(rpm)BearingNumberdmm(inch)Dmm(inch)Bmm(inch)rmm(inch)DynamicCStaticCoGrease OilDsmm(inch)dhmm(inch)Rmm(inch)MassKg,(Approx.)Abutment andFillet Dimensions73SINGLE ROW RADIAL BALL BEARING DrdBrRdhRDsINCH SERIES31.75000(1.37500)(1.2500)34.92538.100(1.5000)41.275(1.6250)44.450(1.7500)47.625(1.875)50.8(2.0000)178003330020800372002570047700275004830035000562504870062100487006210011200180001330022050160002670018100277500232003270031200385003120038500100009200100008600900080008500760080007000780067007800670013000105001200010000100009500100009000950083009200800092008000LS12MS12LS12MS12 LS13MS13LS13 MS13 LS14MS14LS14 MS14 LS15MS150.3070.4800.3670.6390.4460.7610.5350.8620.6541.0840.7101.2400.6711.18969.850(2.7500)79.375(3.1250)76.200(3.0000)88.900(3.2500)82.550(3.2500)95.250(3.7500)88.900(3.5000)101.60(4.0000)95.250(3.7500)107.95(4.2500)101.60(4.0000)114.30(4.5000)101.60(4.0000)114.30(4.5000)17.463(0.6875)22.225(0.8750)17.463(0.6875)22.225(0.8750)19.050(0.7500)23.813(0.9375)19.050(0.7500)23.813(0.9375)20.638(0.8125)26.988(1.0625)20.638(0.8125)26.988(1.0625)20.638(0.8125)26.988(1.0625)1.6(0.06)2.4(0.09)1.6(0.06)2.4(0.09)2.4(0.09)2.4(0.09)2.4(0.09)2.4(0.09)2.4(0.09)2.4(0.09)2.4(0.09)2.4(0.09)2.4(0.09)2.4(0.09)41.4(1.63)43.7(1.72) 46.0(1.81)47.8(1.88)49.3(1.94)50.8(2.00)54.1(2.13)56.6(2.23)57.2(2.25)59.4(2.34)63.5(2.50)65.0(2.56)63.5(2.50)65.0(2.56)62.7(2.47)69.1(2.72)68.3(2.69)76.2(3.00)73.4(2.89)82.6(3.25)77.77(3.06)88.1(3.47)87.1(3.31)93.7(3.69)92.2(3.63)100.1(3.94)92.2(3.63)100.1(3.94)1.1(0.04)1.6(0.06)1.1(0.04)1.6(0.06)1.6(0.06)1.6(0.06)1.6(0.06)1.6(0.06)1.6(0.06)1.6(0.06)1.6(0.06)1.6(0.06)1.6(0.06)1.6(0.06)Boundry DimensionsBasic Load Rating(N)Limiting Speed(rpm)BearingNumberdmm(inch)Dmm(inch)Bmm(inch)rmm(inch)DynamicCStaticCoGrease OilDsmm(inch)dhmm(inch)Rmm(inch)MassKg,(Approx.)Abutment andFillet Dimensions74aDrdBrrRdhRDsSINGLE ROW ANGULAR CONTACT BALL BEARING METRIC SERIESBoundry DimensionsBasic Load Rating(N)Limiting Speed(rpm)BearingNumberd D BrminDynamicCStaticCoGreaseOilDsmax.dhmin.Rmax.Abutment andFillet DimensionsLoadCenterMassKg,(Approx.)a1740121.0970053801500021000720322351.014.50.0642047141.0 1270075401400018000720426411.0170.1003572172.0 2970020050860011000720742651.0240.2814090232.0 442502974069009200730848.581.51.030.50.62545120292.0 8020053650450058007409601001.055.81.8350110272.0 5918045000560075007310601001.036.51.09060110222.0 455003930053007000721268.5101.51.0360.76575SINGLE ROW ANGULAR CONTACT BALL BEARINGaDrdBrra2BRdhRDsRd1RdINCH SERIESBoundry Dimensions(mm)Basic Load Rating(N)Limiting Speed(rpm)BearingNumberdmm(inch)Dmm(inch)Bmm(inch)rmm(inch)DynamicCStaticCoGrease OilDsmm(inch)dhmm(inch)Rmm(inch)MassKg,(Approx.)Abutment andFillet DimensionsLoadCenteramm(inch)d1mm(inch)82.550152.426.9882.4 884008010026003500LS19 ACD100.0134.0-2.073.62.27 (3.5000) (6.0000)(1.0625)(0.09)(3.94)(5.28)-(0.08)(2.90) 152.4053.9752.4 17680015580026003500N4711C100.0140.0-2.073.6 4.54(6.000)(2.125)(0.09)(3.94)(5.51)(0.08)(2.90) 76D drHBdhDSRRSINGLE ROW EXTERNALLY ALIGNING BALL BEARINGINCH SERIES44.45 117.475 28.575 26.988 2.4 56250 32700 6500 900 MSN14 59.4 1.7(1.7500) (4.6250) (1.1250) (1.0625) (0.09) (2.34)110(4.33)1.6(0.06)Boundry Dimensions(mm)Basic Load Rating(N)Limiting Speed(rpm)BearingNumberdmm(inch)Dmm(inch)Bmm(inch)Hmm(inch)rmm(inch)DynamicCStaticCoGrease OilDsmm(inch)dhmm(inch)Rmm(inch)MassKg,(Approx.)Abutment andFillet Dimensions77DOUBLE ROW SELF ALIGNING BALL BEARINGD drrBRDsdhRMETRIC SERIESBoundry Dimensions Basic Load Rating(N)Limiting Speed(rpm)BearingNumberd D B rmin.DynamicCStaticCoGrease OilDsmax.Abutment andFillet DimensionsMassKg,(Approx.) dhmin.Rmax.17 40 12 0.6 7900 14000 17000 1203 36 0.620 47 14 1.0 7650 13000 15000 1204 42 1.020 52 15 1.1 9600 11000 13000 1304 46 1.025 62 17 2.0 17250 9100 11000 1305 55 1.025 52 15 1.0 12100 11000 13000 1205 47 1.030 62 16 1.0 15600 9200 11000 1206 56 1.030 72 19 2.0 20750 7700 9100 1306 65 1.040 80 18 2.0 19700 7100 8400 1208 73 1.045 85 19 2.0 21900 6400 7500 1209 78 1.055 100 21 2.0 26800 5300 6200 1211 91.5 1.575 130 25 2.0 387002010318040205040330046506300670073501000016000 3900 4600 121521252732303637475263.583.5 121.5 1.50.0720.1140.1580.2630.1380.2310.3950.4170.4810.7031.46078DOUBLE ROW SELF ALIGNING BALL BEARINGD drrBRDsdhR31.750 69.850 17.460 1.6 19150 5750 10700 14500 ULS12V 45.0 61.2 1.6 0.324(1.250) (2.750) (0.688) (0.06) (1.77) (2.41) (0.06)INCH SERIESBoundry Dimensions(mm)Basic Load Rating(N)Limiting Speed(rpm)BearingNumberdmm(inch)Dmm(inch)Bmm(inch)rmm(inch)DynamicCStaticCoGrease OilDsmm(inch)dhmm(inch)Rmm(inch)MassKg,(Approx.)Abutment andFillet Dimensions79DOUBLE ROW SELF ALIGNING BALL BEARINGS WITH TAPERCLAMPING SLEEVE AND NUTHLd DE BrDu DtS1dhRMETRIC SERIESBoundry Dimensions(mm)Basic Load Rating(N)Limiting Speed(rpm)BearingNumberd D B L E H rDynamicCStaticCoGrease OilDtmax.Dumax.dhmin.Rmax.S1max.MassKg,(Approx.)Abutment andFillet Dimensions20 52 15 26 8.0 26.00 1.0 12100 3300 11000 13000 1205K 28 33 46 5 0.5 0.25025.4 62 16 34 11.2 30.96 1.0 15600 4650 9200 11000 1206K 35 39 56 9 0.5 0.34731.75 80 18 38 12.4 40.08 2.0 19700 6550 7100 8400 1208K 46 52 70 10 1.0 0.68038.10 85 19 40 12.4 46.83 2.0 21900 7350 6400 7500 209K 54 57 75 11 1.0 0.75350.80 100 21 46 13.6 57.15 2.0 26800 10000 5300 6200 1211K 63 69 88 13.5 1.0 1.0863.5 130 25 56 15.3 76.71 2.0 38700 16000 3900 4600 1215K 81 93 118 18 1.0 2.35480SPECIAL BEARING RACESBDdBDdDdB45DBdBDd dDBBB1006274510.5BB103027.846.28BB103127.847.28 dDBBB100724.2398.65BB105825485.5BB105930485.5 dDBBB10083242.38 dDBBB100917.0420.0514.1RB500522.0328.012RB500323.2931.799.63RB500438.1047.6319.18 dDBBB106031485.5BB106126485.581Double Row Angular Contact Sealed Bearings(Wheel Application)LubricationTheobjectiveoflubricationistoformafilmofoilon rollingorslidingsurfacetopreventthemetalsfrom making direct contact with each other, Lubrication has the following effects :1.Reduces friction and wear.2.Extends Bearing life.3.Prevents rusting.4.Prevents penetration of foreign matter.Fretting wear particularly tends to occur on the raceway ofDRACBearingduringtransportoffinished automobiles. Therefore the fretting resistance property ofLubricantshouldbetakenintoaccountwhile selecting lubricant for DRAC Bearings.SealsA special Low torque high performance (LTHP) seal on both sides of the DRAC Bearing prevent water ingress in thebearingandhavelowtorque.Itconsistsof3-lips- GreaseLip,DustLipandSideLip.AstainlessSteel Slingerisaddedtothe3-lipsealslidingpart,which dramatically enhances rust resistance of the sliding part ofthelips.Sidelipisaddedforimprovingthesealing performance.CharacteristicsMakerNameThickenerBase OilWorking TemperatureColourRemarksResists fretting, enhancesprotection against rustNippon Oil JapanPYRONOCUniversal N6B/N6CUreaMineral Oil-30 to 150 CCreamFretting Resistance ExcellentRecommended grease forPassenger CarsMetal StiffnerPackingSide LipDust LipGrease LipSlingerGrease FillingGEN 1 ball type Dl 'd''B'rxryType with integrated sealGEN 1 Boundry Dimensions(mm)Basic Load Rating(kN) Double RowBearingNumberd D B rx(min.)ry(min.)DynamicCStaticCoMass(Approx.)Distance BetweenPressure ConeAppexes)(mm)25 52 42 3.5 2.5 50.3 33.6 2725 55 48 2.5 2.5 62.9 34 2935 61.8 40 3.5 3.5 54.7 35 3437 72 37 2.5 2.5 53.1 56.2 5237 72 37 2.5 2.5 53.1 56.2 5228 58 44 3.5 3.5 53.0 39.3 3235 68 37 3.5 3.5 52.6 45.9 43.136 68 33 3.5 3.5 52.6 45.9 43.1AU1109-2LLX2 0.366AU0504-5LX2LX 0.499AU1103M-2LLX2 0.422AU0727-6LX2LX 0.630AU0727-6LLX 0.628AU1105-2LLX2 0.470AU1101-2LX2LX 0.535AU1107-2LX2LX 0.47082Double Row Angular Contact Sealed Bearings(Wheel Application)GEN 2 ball typeDfPrDrDeDdryB1B2rxBoundry DimensionsBasic Rated Load (KN)Single RowBearingNumber d D Bi B1 Ba Df Dw Db Pb rx(min.)ry(min.)C CoDistance BetweenPressure Cone ApexesI (min.)No. ofHub BoltsMass (kg)(reference)28 64 18 40 49.5 134 60 64 14.3 3.5 2.5 49.7 BB1072 26.2 16.5 4 1.6483DOOdBClutch Release BearingPillow blocks cast housingSet screw typeMETRIC SERIESSINGLE ROW RADIAL BALL BEARING(SPECIAL BEARING)BB1doDoMETRIC SERIESBelt TensionersBDOBoundry DimensionsBasic Load Rating(N)BearingNumber d D BDynamicCStaticCoJPU51-15-5130.494005050BB1079-5132101005850Boundry Dimensions(mm)Basic Load Rating(N)Limiting Speed(rpm)BearingNumberd D B B1rmin.DynamicCStaticCoGrease OilDsmax.dhmin.Rmax.Abutment andFillet Dimensions357218.515-2570015400980011000BB11034565.51.5222218.515-2070010400140001700063/22SPL31501.5BOLTSIZEM10 UC 205 D1Bearing No.ShaftDiaUnit No.25 UCP20SDIH36.5L140J105A38N13N116H115H271L142B34.1S14.3Boundry DimensionsBasic Load Rating(N)BearingNumberd D BDynamicCStaticCo18881805091.629350002320018884514586.6283270020500306445C5081.6252180016600CR100265101.6273050025200SP306445C5081.621218001660084SPECIAL BEARINGSMETRIC SERIESBoundry Dimensions(mm)Basic Load Rating(N)Limiting Speed(rpm)BearingNumberd D B rDynamicCStaticCoGrease Oil Dsd1d1dhRMassKg,(Approx.)Abutment andFillet Dimensions2258171.5 3230037700--22X58X17----1.5 0.24052151.0 29300277001300015000NU205E29-47-1.0 0.13052151.0 29300277001300015000NJ205--48-1.0 0.13752150.629090284001300015000N205E29-47-1.0 0.21052181.0 32200296001100013000NJ2205E29-47-1.0 0.262171.141500375001100013000NJ305E31.5-55.5-1.0 0.2452562171.1292002520014000-NU30531.5-55.5-1.1 0.23062171.5 49800479005000-NJK305*37.5-55.5-1.5 0.24562171.1292002520014000-NJ30537.5-55.5-1.1 0.2462171.129200252001100013000N305-29-561.1 -62171.141.537.51100013000NU305E37--55.51.0 0.38662241.15690056100970011000NJ2305E--58-1.1 0.42462241.15984059900970011000NU2305E31.5-55.5-1.0 0.355513119600195001400016000NUP10063435511.0 0.13758171.5 3230037700--30X58X17----1.5 0.1961.93519.053.17/1.5513005770012000-CR30*----0.7 0.33062201.0 4330038200970011000NJ2206EF34-57-1.0 0.372191.16900068000930011000NUP306EN36.5-65.5-1.0 0.36721925170048400930011000N306EF36.5-65.5-1.0 -72171.16020063200950011000NJ207EF39-65.5-1.0 0.372231.16140065600850010000NJ2207E39-65.5-1.0 0.4680211.5 4640043000900011000N307-43-73.51.0 0.4643580211.1/1.5164004300081009600NJ307/J41.5-72-1.5 0.48780211.5/47290080300--N1076-4674-1.5 0.5380211.5 690006800081009600NJ307EF41.5-72-1.5 0.488023-723007760081009600NU307ENS41.5-72-1.5 0.57080261.5 94600112300--MUB7307*-4674-1.5 0.67480181.14370042900940011000N20846.546.573.5-1.1 0.37280181.15560055400850015000NUP208E46.5-73.5-1.1 0.38480181.15560055400940011000NJ208--76-1.1 0.38680181.15560055400940011000NU20845-76-1.1 0.37740801824370042900940011000NH208/J46.5--1.0 0.3880181.14370042900940011000NUP208/J46.5-73.5-1.0 0.3480231.172300776007608900NU2208E46.573.5-1.0 0.53880231.1763008320076008900NU2208E46.5-73.5-1.0 0.4880231.1763008320076008900NJ2208E46.5-73.5-1.0 0.48SINGLE ROW CYLINDRICAL ROLLER BEARINGS*Full Complement Roller Bearing85METRIC SERIESDBdrrTYPE NU TYPE NJBTYPE NUPD drrd1D1RRdhDsRRTYPE N TYPE NFdNH = NJ + HJMETRIC SERIESBoundry Dimensions(mm)Basic Load Rating(N)Limiting Speed(rpm)BearingNumber d D B rDynamicCStaticCoGrease OilDsd1d1dhRMassKg,(Approx.)Abutment andFillet Dimensions90231.5 683006600080009400N308-48-821.5 0.6434090231.5 828008130072008500NJ308E48-82-1.5 0.7690232.5804007800072008500NF308E48-82-1.5 -85191.1630006650076009000NUP209E51.5-78.5-1.0 0.50485191.1630006650076009000NJ209E51.5-78.5-1.0 0.49385231.1798009020068008000NU2209EN52.5-78.5-1.0 0.540100251.5 738007100072008400NU30954-82-1.5 0.857100251.5 738007100072008400NU309N54-82-1.5 0.84545100251.5 738007100072008400NF30954-82-1.5 0.870100251.5 738007100072008400NJ30954-82-1.5 0.886100251.5 738007100072008400NUP309N54-82-1.5 0.898100251.5 738007100065008400NJ309VN*53-92-1.5 0.919100251.5 10050010240065007600NU309E53-92-1.5 0.890100251.5 10050010240065007600NU309EN53-92-1.5 0.89010025110050010240065007600NUP309E--96-1.0 -100252.510240010510065007600NUP309V*--92-1.5 0.948100251.5 974009830065007600NUP309EM53-92-1.5 0.9449.9380150.64510053900--CR50*----- 0.2890231.1641007360069008100NH221056.556.583.5-1.1 0.64811027-869008620065007700N3105956-1012.0 1.116110272869008620065007700NUP310N5956101-1.5 1.18650110272869008620065007700NU3105956101-1.5 1.19110272869008620065007700NJ3105956101-1.5 1.14110272869008620065007700NUP310N--104-2.0 1.19555100211.1579006220069008200NU21161.5-92-1.1 0.638100211.1579006220069008200NJ21161.561.592-1.1 0.652120292.513600014100053006300NJ311EF64-111-2.0 1.560110222.5857008230064007600NUP212E68681021021.5 -130312.1 15070015860049005800N312EM71-119-2.0 1.8130313.515870015060049005800N312EF(2312)71-119-2.0 -65140332.1 18180019340046005400NUP313E76-129-2.0 2.37140332.1 18180019340046005400N313EM76-129-2.0 2.370150353.518470017160042005000N314EF81-139-2.0 -75160372.1 23850026080040004700NUP315E86-149-2.0 3.45SINGLE ROW CYLINDRICAL ROLLER BEARINGS86METRIC SERIESDBdrrTYPE NU TYPE NJBTYPE NUPD drrd1D1RRdhDsRRTYPE N TYPE NFdNH = NJ + HJ*Full Complement Roller BearingSINGLE ROW CYLINDRICAL ROLLER BEARINGSMETRIC SERIESDBdrrTYPE NU TYPE NJBTYPE NUPD drrTYPE N TYPE NFdNH = NJ + HJBearing numbersBore (d) OD (D)Width (B)rStaticCoGrease OilBoundary dimensionsBasic Load Rating(N)Limiting Speeds(RPM) MassKg(Approx.)Basic Load Rating(Kgf)DynamicCDynamicCStaticCoN321M1052254933640004230003710543119--9.81NU321M1052254933640004230003710543119--9.91NU224M120215402.12880003650002935837207--6.30CRL40127228.634.9253.22880003700002935837717--6.50CRM40 12725450.84.84650005500004740156065--12.00NU226M1302304032950003850003007139246--7.30NU5226M13023079.455254007761005355879113--14.00NU228M1402504233450004500003516845872--9.30NU230M1502704534050005500004128456065--11.80NU5230M15027088.96728800110390074292112528--22.0072727 (With Sleeve AHX3228)150280933790000118000080530120285--32.00NU332M1603406846850009700006982798879--31.00N334170360725800000102000081549103976--38.70NU5236M18032010839879001552600100703158267--37.00NU338EM19040078510500001400000107034142712--49.50NU5240200360120.65613370002229000136290227217--53.70NU5240M200360120.65614090002391000143629243731--57.25694322035098.42.5953500164900097197168094--35.00NU244M220400654799000115000081448117227--38.00NU5248240440146.05-26170004298000266769438124--100.00NU5256280500165.13.629155005238800297197534027--139.00NU1964320440563625000110000063710112130--25.31NU1080EMA40060090513700002320000139653236493--91.0042629/530530710180632440008129200330683828665--220.00327/600600830150629173006156500297380627574--245.00N1009670980308107120000100000007257901019368--780.00327/700700930160829728006902500303038703619--300.00*Full Complement Roller Bearing87SINGLE ROW CYLINDRICAL ROLLER BEARINGSDBdrrd1D1RRTYPE NINCH SERIESBoundry Dimensions(mm)Basic Load Rating(N)Limiting Speed(rpm)BearingNumberdmm(inch)Dmm(inch)Bmm(inch)Hmm(inch)DynamicCStaticCoGrease Oil Dsd1R d1dhMassKg,(Approx.)Abutment andFillet DimensionsBasic Load Rating(kgf)DynamicCStaticCo25.4 57.15 15.875 1.07 31300 27300 3191 2783 12000 14000 RLS10 - 35.0 - 50.0 1.0 0.176(1.000) (2.250) (0.625) (0.04) (1.378) (1.378) (0.04)70150352.12027002200002066322426--N314E----- 2.75101.6184.1531.753.22250002700002293627523--CRL32----- 3.80114.3238.12550.84.84400005050004485251478--CRM36----- 11.00114.3203.233.3373.22550003150002599432110--CRL36----- 4.60469.9698.5139.76.033000006180000336391629969--N1050-----190.00 88DOUBLE ROW CYLINDRICAL ROLLER BEARINGMULTI ROW CYLINDRICAL ROLLER BEARINGS FOUR ROW CYLINDRICAL ROLLER BEARINGBearing numbersBore (d) OD (D) Width (B) rDynamicCStaticCoDynamicCStaticCoGreaseNN3024K120 180 46 2 225000 375000 22936 38226-NN3026K 130 200 52 2 305000 530000 31091 54027-549722-P6 130.06 300.02 171.6 3 1403000 2393600 143017 243996-NNU4144MW33X 220 370 150 4 1600000 2800000 163099 285423-NNU4956 280 380 100 3.5 697800 908000 71131 92559-NNU4064MW33X 320 480 160 4 2050000 4150000 208970 423038-4202192 460 680 218 9 3750000 8560000 382263 872579-Boundary dimensionsBasic Load Rating(N)Basic Load Rating(Kgf)Oil-------Limiting Speeds(RPM)4.025.34706633.29103240MassKg(Approx.)N1105 100 140 80 1.5 356000 503000 36290 51274- -3.61N1106 120 165 90 1.5 519000 813000 52905 82875- -5.564R3040 150 230 156 2.5 865000 1550000 88175 158002- -24.50FCDP 106156570 530 601 570 6 10300000 29100000 1049949 2966361- -997N1210 650 900 650-17205000 41510000 1753823 4231397- -12464R14205 710 1000 715-23205000 53005000 2365443 5403160- -1800Grease OilLimiting Speeds(RPM) MassKg(Approx.)Bearing numbersBore (d) OD (D) Width (B) rDynamicCStaticCoDynamicCStaticCoBoundary dimensionsBasic Load Rating(N)Basic Load Rating(Kgf)89TYPE NNUCylindrical bore Tapered boreTYPE NNCylindrical bore Tapered boreDesign 1 Design 2SPECIAL CYLINDRICALROLLER BEARINGDBddDDIA. OVERROLLERSBd DB(DIA UNDERROLLERS)d DBINCH SERIESBearing Numbersdmm(inch)Dmm(inch)Bmm(inch)L378226.99350.78217.4625 (1.0627)(1.9993)(0.6875)RNU30535.00562.00017.000RNU30958.50100.0025.00RNU21166.50100.0021.00N1081120.00260.00103.00INCH SERIESBearing Numbersdmm(inch)Dmm(inch)Bmm(inch)N-100431.7579.3522.225 (1.25)(3.124)(0.875)INCH SERIESBearing Numbersdmm(inch)Dmm(inch)Bmm(inch)L06425.40053.96728.575 (1.000)(2.1274)(1.125)dmm(inch)Dmm(inch)Bmm(inch)rmm(inch)Boundry DimensionsBearingNumberApproxmass(kg,)680742.53008N1065161.8382090340010N1084348.0290DBdSPECIAL CYLINDRICAL ROLLER BEARINGSMETRIC SERIESINCH SERIESBearing numbersBore (d) OD (D) Width (B)Dynamic CStaticCoBoundary dimensionsBasic Load Rating(N)L6029 107.95 (4.250) 203.20 (8.000) 57.15 (2.250) 356600 469200L6031 139.70 (5.500) 254.00 (10.000) 71.438 (2.8125) 553700 74530091L52859019043244000269400WU100X200W10020067386000485000RB503411622060374000539900RB507011821560374000539900RB500211822060374000539900RB5075119.121560382900549900L618012021560374000539900L506412022060374000539900WJP120x240P12024080550900738100RB506612826084614500837200WJP130x240P13024080480900668600WJP130x240PE13024080524300746700L594413026084615400837200RB5024144.524572491000721800RB5047144.524580544300831300RB504414827080637500926100L620515027080637500926100WJP130x300P1503001029601001373700RB5068158318988870001220800L5946160318988870001220800Bearing numbersBore (d) OD (D) Width (B)Dynamic CStaticCoBoundary dimensionsBasic Load Rating(N)SPECIAL CYLINDRICAL ROLLER BEARINGSDBdMETRIC SERIES92Bearing numbersBore (d) OD (D) Width (B)Dynamic CStaticCoBoundary dimensionsBasic Load Rating(N)L6028 107.95 (4.250) 203.20 (8.000) 57.15 (2.250) 356600 469200L6030 139.70 (5.500) 254.00 (10.000) 71.438 (2.8125) 553700 745400INCH SERIESBearing numbersBore (d) OD (D) Width (B)Dynamic CStaticCoBoundary dimensionsBasic Load Rating(N)WJ100X20010020067386000485000RB503311622060374000539900RB506911821560374000539900RB500111822060374000539900RB5076119.121560382900549900L617912021560374000539900L506312022060374000539900WJP120x240P12024080550900738100RB500612624080480900669389RB505812624080524300746064NBR10212824080480900669839RB505612824080524300746200RB506512826084641500932800WJP130x24013024080480900669839WJP130x240E13024080524300746064L594313026084615400926800RB5017140250684591701373700RB502324572486834720133RB5046144.524580544300831260RB504314827080637500926100L620415027080637500926100WJP130x3001503001029601001373700RB5067158318988870001220800L5945160318988870001220800SPECIAL CYLINDRICAL ROLLER BEARINGSB BD d D dBD dBD dBD d d DB BBTYPE - I TYPE - II TYPE - III TYPE - IV TYPE - V TYPE - VIMETRIC SERIES93Bearing numbersBore (d) OD (D) Width (B)Dynamic CStaticCoBoundary dimensionsBasic Load Rating(N)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drrDBdrrTYPE NU TYPE NJ TYPE NUP TYPE N TYPE NFdBNH = NJ + HJDMETRIC SERIESFOR TRACTION MOTOR APPLICATION1. All Bearings are made with Riveted Brass Cage.2. *Marked bearings are also available with Rivetless Brass Cage.94 Bearing numbersBore (d) OD (D) Width (B)Dynamic CStaticCoBoundary dimensionsBasic Load Rating(N)NH3189019043315000355000NUP3189019043315000355000NU3189019043315000355000NU32010021547380000425000NH320*10021547380000425000NJ32010021547380000425000NH32412026055475000550000NJ32412026055475000550000NU32412026055475000550000NU32613028058620000795000NU32814030062671000810000NU330*15032065800000985000NU336180380759050001150000TYPE - VIIDBdDOUBLE ROW CYLINDRICAL ROLLER SEALED UNIT95Bearing numbersBore (d) OD (D) Width (B)Dynamic CStaticCoBoundary dimensionsBasic Load Rating(N)RB508015025016010149671799055RB508115027017412800002105866SINGLE ROW TAPERED ROLLER BEARINGSBD daRTbrINCH SERIESBearingNumberDynamic Staticd D T B b R rmm mm mm mm mm mm mm C CoCone / Cup Oil GreaseBoundry DimensionsBasic Load Rating Limiting Speed(N) (rpm)15.87542.86214.28814.2889.5251.51.51800018000870011200011590/1152017.46239.87813.84314.60510.6681.31.32240023000900013000LM11749/LM1171045.23715.49416.63712.0651.31.32930029900890012000LM11949/LM1191049.22518.03419.05014.2881.31.34060042300800011000M12644/M1261021.43050.00517.52618.28813.9701.31.34060042400800011000M12649/M1261023.81261.91228.57530.41623.8122.363.37360078600720096003659/362057.1519.43119.43114.7321.61.6420004900069009200M84548/M8451062.00019.0520.63814.2881.31.342200478006100820015100S/1524563.50020.63820.63815.8751.31.542200478006100820015100S/15250X65.08822.22521.46315.8751.51.547800520005700760023100/2325626.98850.2914.22414.73210.6683.51.3278003220074009900L44649/L4461057.1519.84519.35515.8753.51.54670053400670089001988/192228.57562.00018.16119.05014.2883.51.342200478006100820015112R/1524573.02522.22522.22517.4620.83.360400742005300700002872/0282029.98562.000019.05020.63814.2881.31.342200478006100820015117/1524530.16264.29221.43321.43316.6701.601.60515006140061008100M86649/M8661059.13115.87516.76411.8113.561.3345004150063008400LM67048/LM6701062.00018.16119.05014.2883.51.342200478006100820015123/1524531.75062.00019.05020.63814.2883.51.342200478006100820015125/1524568.26322.22522.22517.4633.51.550600571005800770002475/0242069.01219.84519.58315.8753.51.345900548005600740014125A/1427672.62630.16229.99728.8121.53.37850088700550073003188S/312019.05025.40096Equivalent bearing loaddynamicPr XFr YFaFaFrFaFre eX Y X Y1 2 Y 0 0.4staticFor values of andsee the table below.Por 0.5Fr Y Fa oWhen use Por Fr Por Fr2 Y e, YoR1d1 Ds D1 dhSINGLE ROW TAPERED ROLLER BEARINGS11590/ 1152024.522.534.539.51.51.50.70.851.20.101LM11749/ LM1171023.021.534.037.01.31.30.700.865.30.081LM11949/ LM1191025.023.539.541.51.31.30.302.005.60.119M12644/ M1261027.525.444.046.01.31.30.282.166.40.185M12649/ M1261027.525.444.046.01.31.30.282.166.40.1663659/ 362032.030.0----0.282.16-0.300M84548/ M84510363348.5541.50.551.13.40.23615100S/ 1524536.535.055.058.01.31.30.351.716.00.29915100S/ 15250X33.531.555.059.01.31.50.282.136.00.22523100/ 2325639.034.653.061.01.51.50.730.822.00.356L44649/ L4461037.53144.5473.51.30.371.63.40.1171988/ 192239.533.551.053.53.51.50.331.825.90.21615112R/ 1524540.034.055.058.03.51.30.351.716.00.27402872/ 0282037.537.062.068.00.83.30.451.323.90.47715117/ 1524536.535.055.058.01.31.30.351.716.00.275M86649/ M8661041.0038.0054.0061.001.501.500.551.103.30.336LM67048/ LM6701042.53652z1.30.411.462.80.18415123/ 1524542.536.555.558.03.51.30.350.175.10.22515125/ 1524542.536.555.058.03.51.30.350.176.00.23902475/ 0242044.538.559.063.03.51.50.411.445.20.37914125A/ 1427644.037.560.063.03.51.30.381.574.10.3503188S/ 312041.539.561.067.01.53.30.331.8010.10.574LoadMassCentre(Approx.)DsD1dhd1R1r1 eya kgmm mm mm mm mm mm mm mm mm(lb)Abutment andFillet DimensionsBearingNumberCone / Cup97BearingNumberDynamic Staticd D T B b R rmm mm mm mm mm mm mm C CoCone / Cup Oil GreaseBoundry DimensionsBasic Load Rating Limiting Speed(N) (rpm)SINGLE ROW TAPERED ROLLER BEARINGSBD daRTbrINCH SERIES33.33868.26222.22522.22517.4620.81.6570007200057007500M88048/M8801069.01219.84519.58315.8750.801.3045900548005500740014131/1427665.08818.03418.28813.973.51.3500006100057007600LM48548/LM4851069.01219.84519.58315.8751.51.345900548005600740014137A/1427634.92572.23325.425.419.8422.42.4650008450054007200HM88694/HM8861073.02523.81324.60819.051.50.871400855005300710025877/2582173.02523.81324.60819.051.52.371400855005300710025877/2582076.229.3728.57523.8121.53.380700969005100680031594/3125079.37529.3729.77123.8123.503.3087000104600490066003490/342034.98979.98532.75130.92525.0002.502.5087000104300490066003478X/3424S82.93123.81225.419.0500.800.8076700984004500600025572/2552038.10088.526.98829.08322.2253.61.69818611167846006100418/41439.68876.223.81225.65419.053.60.873000920002789/272940.000802122.40317.8263.51.3690007630047006300344/33240.98867.97517.50018.00013.5003.51.5453006140053007000LM300849X/LM30081173.43119.55819.81214.7323.60.8582357316050006600LM501349/LM50131041.27576.222.22523.01717.4623.60.866312833294900650024780/2472082.5526.54325.65420.1933.63.3770009900046006100M802048/M80201187.31230.16230.88623.8121.503.5097000122900440059003585/352542.87582.93126.98825.40022.2253.52.376800982004500600025577/2552398LoadMassCentre(Approx.)DsD1dhd1R1r1 eya kgmm mm mm mm mm mm mm mm mm(lb)Abutment andFillet DimensionsBearingNumberCone / CupEquivalent bearing loaddynamicPr XFr YFaFaFrFaFre eX Y X Y1 2 Y 0 0.4staticFor values of andsee the table below.Por 0.5Fr Y Fa oWhen use Por Fr Por Fr2 Y e, YoR1d1 Ds D1 dhSINGLE ROW TAPERED ROLLER BEARINGSM88048/ M8801042.54158651.50.551.12.90.38214131/ 1427639.5038.5060.0063.000.801.300.381.574.10.334LM48548/ LM48510464058.061.03.51.30.381.573.70.2514137A/ 14276424060.063.01.51.30.381.574.10.319HM88694/ HM8861048.542.560.069.02.32.30.551.14.60.49825877/ 258214340.565.068.01.50.80.292.078.10.44425877/ 258204340.564.068.01.50.80.292.078.10.44431594/ 3125046.043.564.072.01.53.30.41.497.80.6193490/ 342052.004509.0067.0074.003.503.300.371.648.70.6793478X/ 3424S43.5043.0071.5074.002.502.500.371.6412.50.76525572/ 2552046.0046.0074.0077.000.800.800.331.796.20.645418/ 4145144.577803.51.50.262.289.10.812789/ 27290.477344/ 3325245.573753.50.272.26.60.469LM300849X/ LM30081152.045.061.065.03.51.50.341.723.60.239LM501349/ LM5013105346.566703.50.41.53.30.33324780/ 24720544768723.50.391.534.50.423M802048/ M802011575170793.50.551.13.20.6143585/ 352549.0048.0075.0081.000.803.300.351.72100.83425577/ 2552355.049.072.077.03.52.30.331.796.20.61599BearingNumberDynamic Staticd D T B b R rmm mm mm mm mm mm mm C CoCone / Cup Oil GreaseBoundry DimensionsBasic Load Rating Limiting Speed(N) (rpm)SINGLE ROW TAPERED ROLLER BEARINGSBD daRTbrINCH SERIES92.07530.16329.3723.023.63.399000125000HM803149/HM80311293.26430.16230.30223.8123.563.30102000134000400053003782/372044.45095.2530.95828.87522.2253.500.80984001190037004900HM903249/HM303210111.12538.136.97530.1623.503.3014330018050036004800535/532A112.71330.13326.90920.6380.803.301065001405004500600055176C/5544345.24277.78819.84219.84