FwInside DiameterBEARINGPARTNUMBER DOutside Diameter r1HousingFilletMax ApproxWeightlbs HousingShoulderDia ID: 609697
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Min..5005.5630.62581.00091.06341.43851.5010 Min..99951.06201.12451.4995.04.04.04.04.04.04.0611/163/41 5/161 11/161 11/162,7002,9007,0008,6007,20011,5007,60010,0003,5003,90011,40010,30017,60014,200Nominal1/29/165/81 1/161 7/161 1/2 Max.1.00001.06251.12501.56251.93752.0625 .750.750.7501.000.7501.000.750.7501.000.7501.0001.0001.0001.000.110.117.137.112.235.315.317423.342 FwInside DiameterBEARINGPARTNUMBER DOutside Diameter r1HousingFilletMax. Approx.Weight(lbs.) HousingShoulderDia.+/Ð 1/64" DynamicCapacityC (lbs.)StaticCapacityCO (lbs.)BWidth+.000Ð.005SJ 7113SJ 7133*SJ 7194*SJ 7264SJ 7274*Precision Ground Heavy Duty Needle Roller Bearings Fw r1 D B All dimensions in inches.or matching inner rings see page 10The part numbers of matching inner rings are the same as thecorresponding bearing numbers, except the prefixis replaced by the prefix Alternate inner rings with different bores are availableor several bearings.Alternate inner rings carry suffix -D.Example: Matching inner ringsor bearing (1 /34Ó x 2 5/8Ó x 1 1/4Ó):Inner rings must be ordered separatelySJ Pitchlign Max..5014.5639.62671.00181.06431.43941.50192 Max. LimitSpeed(rpm).5000.5625.62501.00001.00001.37501.3750 Min. .4996.5621.74951.06201.1245.4994.5619.74921.06171.1242 Max..4989.5614.62391.06121.0612Min. Min.1.00001.06251.12501.37501.37501.50001.93752.0625 1.00081.06331.25101.37601.37601.6260 .0006L.0006L.0007L.0007L.0007L.0007L .99891.06141.12391.24871.6237 .99971.06221.12471.24971.6247.0004T.0004T.0004T.0005T.0005T.0005T.0005T.0006T.0006T -1-2-3-4-5-6-7-11-12-23-24 Max.Mean FitMin.Max.Mean Fit SJ 7113SJ 7123SJ 7154*SJ 7173*SJ 7174*SJ 7214*BEARINGPARTNUMBERThe bearings meet Military Standard MS 51961.* These bearings have a radius at both ends of the outer ring.Precision Ground Heavy Duty Needle Roller Bearingswith Inner RingsFor matching inner rings see Page 10MS51961Suffix26,00023,00017,00011,00011,0009,000 ISO h6, use withH7 hsg fitISO f6, use withN7 hsg fitSlip Fit ISO H7Press Fit ISO N7 Recommended Shaft DiameterRecommended Housing Bore 3 Precision Ground Heavy Duty Needle Roller BearingsAll dimensions in inches.For matching inner rings see page 11The part numbers of matching inner rings are the same as thecorresponding bearing numbers, except that the prefixSJ is replaced by the prefix IR.Alternate inner rings with different bores are availablefor several bearings.SJ 7304SJ 7305SJ 8446SJ 9568FwInside DiameterBEARINGPARTNUMBER Max.1.68951.75202.25213.2524 Min.2.24942.24942.31192.99944.2492 DOutside Diameter r1HousingFilletMax..06.06.06.08.10 Approx.Weight(lbs.) HousingShoulderDia.+/Ð 1/64"1 15/161 15/162 1/162 3/16 7,6009,50012,4008,00010,00010,4008,10010,10015,800 15,90021,10023,10036,400DynamicCapacityC (lbs.)StaticCapacityCO (lbs.)SJ Pitchlign¨ SeriesAlternate inner rings carry the suffix -C or -D.Example: Matching inner ringsfor bearing SJ 7355 (2" x 2 9/16" x 1 1/4"):a) IR 7355 D (1 5/8"ID x 2"OD x 1 1/4"W) orb) IR 7355 (1 11/16"ID x 2"OD x 1 1/4"W)Inner rings must be ordered separately. Nominal1 11/161 11/161 3/42 1/43 1/4 Min.1.68851.68851.75102.25113.2512 Max.2.25002.25002.31252.31253.00004.2500 1.0001.2501.0001.2501.250BWidth+.000Ð.005.37.46.361.071.254 9Available Seal ConfigurationsTYPEÑRXSingle seal mounted inchamfered end of ring withsealing lip turned inward toretain lubricant.Bearing # SJ Ñ RX.6246.74951.12451.24942.7493.6244.74921.12421.24902.7488.6239.74871.12371.24842.7481.6250.75001.00001.25002.7500ISO f6, use withN7 hsg fit ISO h6, use withH7 hsg fit 6,1005,1003,1001,400950LimitSpeed(rpm) 1.12501.25001.75003.5000 1.12581.25101.75103.5014 .0006L.0007L.0007L.0011L 1.12391.24871.74873.4982 1.12471.24971.74973.4996 .0004T.0005T.0005T.0007T Slip Fit ISO H7Press Fit ISO N7 Recommended Shaft DiameterRecommended Housing Bore Min.Max.Min.Max.Min.Max. 13 IN SEARCH of MAXIMUM CAPACITYThe RBC TJ TandemRoller® BearingWhat more capacity will do:Increasing the number of rollersThe Tandem Roller Bearing(TJ-series) solutions.Full complement of rollers 15Heavy Duty TJ TandemRoller¨ Bearings LimitSpeed(rpm)13,00011,80011,0009,4007,100 .87501.00001.06251.25002.5000 .8745.99951.06201.24942.4993 ISO h6, use withH7 hsg fit .8742.99921.06171.24902.4988ISO f6, use withN7 hsg fit Recommended Shaft Diameter Slip Fit ISO H7Recommended Housing Bore1.49871.49872.311010.1224 Press Fit ISO N7BEARINGPARTNUMBER1)DTJ Double Row TandemRoller¨ Bearing Max.Max.Min.Max. 1) Location and number of lubricatingholes may differ 17 HardnessHardnessDynamicStatic HRc HV f 58 655 1.001.00 56 617 .88 .99 54 580 .77 .97 52 545 .67 .94 50 513 .59 .90 48 485 .51 .85 46 458 .43 .76 44 435 .37 .68 42 413 .31 .60 40 393 .26 .55 18 ne = (ni * ti100 ) = n1 * t1100 + n2 * t2100 + . . . Pe = q (Fiq * ni * tine * 100 ) = q Fiq * ni * tine * 100 + F2 * n2 * t2 ne * 100 + . . . = q Fiq * ti 100 + F2q * t2 100 + . . . Pe = q (Fiq * ti100 a1 = reliability factor (see table 2)a2 = material factora3 = user operating factor Reliability %L90L95L96L97L98L99L 19 LoadingShock Load FactorUniform and constant1.00Variable and light shock1.50Vibration and moderate shock2.00Heavy and severe shock3.00 NominalUpper & LowerNominalUpper & LowerBearing ODToleranceInner RingIDToleranceRange[in]ISO P7Range[in]ISO n6 20 Due to lower stiffness, bearing inner and outer rings usually conform to the shape of shaftand housing bore respectively, with little attenuation of taper and out-of-roundness. Theapplication.The bearing operating clearance should be checked in cases where both inner and outer ringsare press fitted or where a large temperature gradient exists between shaft and housing.The user supplied shaft is an integral part of bearings without an inner ring and must meetat least the minimum requirements for rolling element bearings: Surface hardness of HRc6. LubricationLubricants serve very important purposes in rolling element bearings, they € protect bearing surfaces from rust and corrosion. € reduce rolling and sliding friction. € prevent metal-to-metal contact between rollers and raceways.Lack of lubrication or inadequate lubrication is probably the single most common cause ofbearing failure.6.1 Grease Lubrication€ Suitability for the expected operating temperature and speed. Select alower NLGI grade for low temperature operation.€Compatibility with other greases, oils, and rust preventatives. To becompatible, products usually must have the same type oil and thickener.€Load carrying ability. Some high temperature greases may significantlyreduce bearing load capacity.€Resistance to water and other contaminants. Balance water repellentproperties against water emulsifying and water soluble properties. Note,against condensation and water, which has breached the grease barrier.€Required additives for extreme pressure (EP), aging and oxidation resis-tance.Historically, greases based on different thickeners had distinctly different properties withIt takes relatively little lubricant to maintain an adequate lubricating film. In manyapplications, relubrication every 10 - 20,000 hrs would be sufficient for that purpose alone. Operating Percent of Grease fillspeed nspeed limit nslown medium10% high&#x 20%;&#x n00;n = 20% nvery high&#x 20%;&#x n00;n = 65% n 22 TYPICAL APPLICATIONS Hoist Drum Shaft „ The long slender shaft of such anapplication is another point with inherent misalign-ment and deflection. Pitchlign® bearings are indi-cated to maintain its free-rolling, high capacity opera-Pumping Units „ Center iron and equalizer applica-tions, with oscillating service is best served by Pitchlign®bearings. With the properly controlled and spacedSheave Blocks „ Crownblocks and traveling blocks of® bearings for easeof assembly, ease of lubrica-bined with minimum frictionand dependable service.Steel Mill Equipment „ Pipe handling tables usePitchlign® bearings for maximum capacity, mini-mum friction, compactness, ease of lubrication andmaintenance-free service. 23 Machine Tools „ One such application is the planet gears and mainshaft bearings of a clutch drive of a mechanical press.Pitchlign® bearings are ideally suited for planet gear applications where centrifugal force and torsional deflection of the planet cageis present. Pitchlign® bearing cages are supported by the integral outer ring flanges, maintaining proper guidance of individualrollers, regardless of the centrifugal force.Textile Machinery „ Calender rolls, where space is aproblem, is another place where the Pitchlign® bearingwith its maximum capacity, minimum size and thrust freeoperation fulfills all requirements. The sealed Pitchlign®bearing also assures stain-free batts. Gear Pumps „ Higher pressures and speeds of todaysefficient gear pumps, more than ever demand an individu-®.The deflection due to the high internal hydraulic loading,taken care of by any other type bearing.Paper Converting Machines „ To maintain todays fabu-lous output of paper converting machinery, Pitchlign®bearings are used on the eccentrics and main bearings ofpaper punch presses where they withstand speed, heavy 24 Pitchlign® Aircraft Bearing mounted in a universal joint typedesign of intersecting horizontal and vertical hinges of a helicop-ter. The minimum dimensions and maximum capacity plus thecreepage of the rollers and cage under oscillating service makesthe Pitchlign® bearing an ideal bearing for such applications. Pitchlign® Aircraft Bearing applied to the horizontal hinge of anearly model helicopter rotor. The shaft, being cantilevered,introduces a severe deflection problem. The Pitchlign® bearing,with its individually controlled rollers prevents skewing and Power Transmission „ In gear boxes and transmissions ofall types, the Pitchlign® bearing is used due to its maximumcapacity, minimum size and thrust free service. The sealing® bearing simplifies design,assembly and inventory of parts. 25 27