Heavy Duty Needle Roller Bearings - vtl.rs

1 Nomenclature .. 400 Introduction .. 402 Identification .. 402 Construction .. 402-403 Lubrication .. 403 Seals .. 403 Special Bearings .. 403 Mounting Dimensions .. 403 Dimensional Accuracy, Bearings . 404 Dimensional Accuracy, Inner Rings405HJ TYPED imensions, Load Ratingsand Mounting .. 406-409 SEALED TYPED imensions, Load Ratingsand Mounting .. 410-411 METRIC BEARINGSN eedle Roller bearing types . 420-421 Construction .. 421-422 bearing Mounting .. 422-423 Inner Rings .. 424 Heavy DutyNeedle RollerBearingsPagePageEnd Washers .. 424 Mounting Dimensions for needleroller Bearings without flanges .. 425 Tolerances, Clearances andChamfer dimensions .. 426-432 Needle Roller Bearings withoutInner Rings .. 433-437 Needle Roller Bearings withInner Rings .. 438-441 Sealed Needle Roller Bearingswithout Inner Rings .. 442 Sealed Needle Roller Bearingswith Inner Rings.

2 443 Needle Roller Bearingswithout Flanges, withoutInner Rings .. 444-447 Needle Roller Bearingswithout Flanges, withInner Rings .. 448-451 Torrington End Washers .. 458 Machined Ring Bearings Inch Nominal DimensionsPrefixesHJinch nominal dimensionsMmatched pairTone seal (lip facing outward), old designRone seal (lip facing inward), old designOutside Diameter 20 = 20 16 = 1 1 4"104 =104 16 = 6 1 2"Suffixes RS one seal*2RS two seals** Seals used on new designs. ReplaceT and R - 80104362 RSBore16 = 16 16 = 1"80 = 80 16 = 5"Width32 = 32 16 = 2"36 = 36 16 = 2 1 4"Inner Rings (6-digit number)IR for use with machined ring Needle Roller Bearings only64 = 64 16 = 4"80 = 80 16 = 5"I R - 648036 Bore10 = 10 16 = 5 8"64 = 64 16 = 4"Width14 = 14 16 = 7 8"36 = 36 16 = 2 1 4"400 Outside Diameter402 INTRODUCTIONB efore selecting specific Heavy duty Needle Roller Bearings , the generalEngineering section of this catalog should be reviewed for detailedinformation concerning.

3 bearing type selection bearing life and reliability definition of load ratings life and load relationships effect of raceway hardness example of life calculation lubrication limiting speeds shaft design housing designIn addition to these general considerations, review the materialwhich follows when selecting Heavy duty Needle Roller prefix letters HJ in the bearing designation for Heavy duty needleroller Bearings denote that the Bearings are manufactured to inchnominal are available with one or two lip contact seals as listed onpages 410 and 411. One seal is designated by the suffix letters RS, twoseals by . rings can be used with Heavy duty Needle Roller Bearings forapplications where it is impractical to use the shaft as the innerraceway. These inner rings are identified by the prefix the entire identification code may not appear on the bearingitself, the manufacturer s parts list or another reliable source shouldalways be consulted when ordering Bearings for service or fieldreplacement, to make certain that the correct bearing with the correctlubricant is Torrington Heavy duty Needle Roller bearing has a one-piecechannel shaped outer ring of bearing quality steel, heat treated toprovide maximum load rating.

4 The integral end flanges provide axiallocation for the rollers. The bores of the end flanges serve as pilotingsurfaces for the cage, locating it to prevent removal of the lubricant filmon the raceway. These Bearings have a steel cage which provides inward retentionfor the Needle rollers. The design assures Roller stability and minimizesfriction between the cage and the Needle rollers. The cage hasmaximum strength consistent with the inherent high load ratings ofneedle Roller Channel-Shaped Outer RingType HJType IR Heavy duty Needle Roller BEARINGS403 CONSTRUCTION (continued)The Needle rollers are made from high carbon chrome steel, throughhardened, ground and lapped to close tolerance with ControlledContour for optimum load distribution (see page E78).LUBRICATIONThe outer rings of the HJ Bearings are supplied with a lubricationgroove in the and a lubrication hole in the groove to facilitaterelubrication through the outer ring.

5 The IR inner rings have lubricationgrooves in the bore and a relubrication hole to facilitate relubricationthrough the inner general information regarding lubrication of Heavy duty needleroller Bearings , refer to page E76 of the Engineering contact seals which fit into the same housing bore as the heavyduty Needle Roller Bearings may be obtained from recognized sealmanufacturers. Bearings can also be made available with one or twointegral seals - for information and listing of sealed Bearings see BEARINGSFor Heavy duty Needle Roller Bearings with special dimensions orspecial features such as a split outer ring, consult the TorringtonEngineering Sales DIMENSIONSH eavy duty Needle Roller Bearings are normally mounted in theirhousings with a clearance fit if the load is stationary relative to thehousing, and with a tight transition fit if the load rotates relative to thehousing.

6 Since the tight transition fit of the bearing in the housing mayresult in a reduction of the Needle Roller complement bore diameter, theshaft raceway diameter should be reduced a like tables of dimensions list the recommended ISO H7 tolerancesfor the housing bore and the recommended ISO h6 tolerances for theshaft raceway when the outer ring is to be mounted with a clearancefit. They also list the recommended ISO N7 tolerances for the housingbore and the recommended ISO f6 tolerances for the shaft racewaywhen the outer ring is to be mounted with a tight transition mounting dimensions may be required by special conditionssuch as:(1) Extremely Heavy radial loads(2) Shock loads(3) Load rotating relative to both inner and outer rings(4) Temperature gradient across bearing (5) Housing with heat expansion coefficient differing from that ofthe these conditions are expected, please consult the TorringtonEngineering department.

7 Regardless of the fit of the bearing outer ring in the housing, theouter rings should be located by housing shoulders or other positivemeans. The maximum allowable fillet radius for the housing shoulder islisted in the table of at Roller EndsFlange Riding CageRetaining AreaSHAFT ROTATIONA mple Lubricant StorageHEAVY duty Needle Roller Bearings 404 DIMENSIONAL ACCURACY, BEARINGST olerances for the HJ Bearings are given in Tables 1 and 406 through 411 list the nominal outside diameter, width andneedle Roller complement bore diameter for the HJ conversions given in these table are for the convenienceof the user. The controlling dimensions are in 2 - Roller Complement Bore Tolerance, HJ Bearings1 The smallest single diameter of the Roller complement bore is defined as the diameter of thecylinder which, when used as a bearing inner ring, results in zero radial internal clearance inthe bearing on at least one 1 - Outside Diameter and Width Tolerances, HJ BearingsDeviations from NominalNominal Outside Diameter, Dof Single Mean Outside Diameter, Dmp 1of Width, + + + + + + + + + + + + + + + + + + + + + + + + Roller ComplementDeviations from Nominal of the Smallest Single Diameter 1 Bore Diameter, Fwof the Roller Complement Bore Fw + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + Single mean diameter is defined as the mean diameter in a single radial plane.

8 Heavy duty Needle Roller BEARINGS405 Deviations from NominalNominal Bore Diameter, dof Single Mean Bore Diameter, dmp 1of Width, + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + Outside Diameter, FDeviations from Nominal ofSingle Mean Outside Diameter Fmp ACCURACY, INNER RINGST olerances for the IR inner rings are given in tables 3 and 412 through 415 list the nominal outside diameter, width andbore diameter for the IR series inner conversions given in these tables are for the convenienceof the user. The controlling dimensions are in 3 - Bore and Width Tolerances, IR Inner Rings1 Single mean diameter is defined as the mean diameter in a single radial Single mean diameter is defined as the mean diameter in a single radial 4 - Outside Diameter Tolerance, IR Inner Rings Heavy duty Needle Roller Bearings 406HJ TypeCheck for Bearings meet Military Standard MS 51961.

9 Inch-metric conversions given are for the convenience of the controlling dimensions are in inches for nominal inch ratings are given in pounds-force:1 lbf = kgf = NBearing diameters and widths listed below are nominal. For inspectionpurposes, see tolerance tables on page 70 80100200300400 5007001000200030004000 withInner RingDIMENSIONS AND LOAD RATINGSLoad RatingsFwDC/BBasicBasicra*FBoreOutsideWi dthBearingDynamicStaticLimitingHousingUs ed withHousingDiameterDesignationCrCoSpeedF illetInner RingShoulderDesignationDiameterISOISO (nom.)(nom.)(nom.)T28176(max.) 1 64 , , ,05HJ-1018122 9803 9804 15030 ,6IR-061012 15 1623, , , ,05HJ-1220123 1804 2504 68025 ,0IR-0812121 1 1627, , , ,40HJ-1220164 3505 8307 02025 ,0IR-0812161 1 1627, , , ,05HJ-1422123 5404 7505 60021 ,0IR-1014121 3 1630, , , ,40HJ-1422164 8506 5008 40021 ,0IR-1014161 3 1630, , , ,05HJ-1624123 8705 2006 52018 ,0IR-1216121 5 1633, , , ,40HJ-1624165 3107 1209 78018 ,0IR-1216161 5 1633, , , ,40HJ-1826165 7407 70011 20016 ,0IR-1418161 7 1636, , , ,75HJ-1826207 1909 65014 90016 ,0IR-1418201 7 1636, , , ,40HJ-2028165 9007 92011 90014 ,0IR-1620161 9 1639, , , ,75HJ-2028207 4009 93016 00014 ,0IR-1620201 9 1639, , , ,40HJ-2230166 2908 43013 30013 ,0IR-1822161 11 1642, , , ,75HJ-2230207 88010 60017 80013 ,0IR-1822201 11 1642, , , ,40HJ-2433167 4009 93014 80012 ,5IR-2024161 7 847, , , ,75HJ-2433209 32012 50020 00012 ,5IR-1924201 7 847.

10 40HJ-2635167 60010 20015 70011 ,5IR-212616250, , , ,75HJ-2635209 57012 80021 10011 ,5IR-212620250, , , ,40HJ-2837167 79010 50016 6009 ,5IR-2328162 1 854, , , ,75HJ-2837209 81013 20022 3009 ,5IR-2228202 1 854, , , ,75HJ-30392010 40013 90024 5009 ,5IR-2530202 1 457, , , ,40HJ-3241168 41011 30019 1008 ,5IR-2732162 3 860, , , ,75HJ-32412010 60014 20025 7008 ,5IR-2432202 3 860, , , ,10HJ-36482414 80019 90036 2007 ,5IR-2836242 11 1668, , , ,45HJ-36482817 20023 10043 7007 ,5IR-2836282 11 1668, , , ,10HJ-40522416 00021 50041 3006 ,0IR-3140242 15 1674, , , ,45HJ-40522818 60024 90049 9006 ,0IR-3140282 15 1674, , , ,40HJ-44561610 90014 70026 1006 ,0 3 3 1681, , , ,10HJ-44562416 70022 30044 8006 ,0IR-3644243 3 1681, , , ,45HJ-44562819 30025 90054 1006 ,0IR-3544283 3 1681,0IR-364428T Symbol denotes Torrington Basic Dynamic Load Rating to be used in load-life calculationstaking into consideration the application guidelines and limitations given in this involving loads approaching this rating should be referred to our EngineeringDepartment before a final selection is Ratings are based on a minimum raceway hardness of 58 HRC or Basic Dynamic Load Rating (Cr) = Applied Load SF LF HF (see page E75).