>> P.188
MACHINEDTYPENEEDLEROLLERBEARINGSWithoutInnerRing,InchSeriesShaftdia.50.800-101.600mmBoundarydimensionsmm(inch)StandardmountingdimensionsmmIdentificationnumberBR324116BR324120BR364824BR364828BR405224BR405228BR445624BR445628BR486024BR486028BR526828BR526832Mass(Ref.)g1902404355104755555106005556509901140FwDC50.800(2)50.800(2)57.150(2 1╱4)57.150(2 1╱4)63.500(2 1╱2)63.500(2 1╱2)69.850(2 3╱4)69.850(2 3╱4)76.200(3)76.200(3)82.550(3 1╱4)82.550(3 1╱4)65.088(2 9╱16)65.088(2 9╱16)76.200(3)76.200(3)82.550(3 1╱4)82.550(3 1╱4)88.900(3 1╱2)88.900(3 1╱2)95.250(3 3╱4)95.250(3 3╱4)107.950(4 1╱4)107.950(4 1╱4)25.400(1)31.750(1 1╱4)38.100(1 1╱2)44.450(1 3╱4)38.100(1 1╱2)44.450(1 3╱4)38.100(1 1╱2)44.450(1 3╱4)38.100(1 1╱2)44.450(1 3╱4)44.450(1 3╱4)50.800(2)BR567232122088.900(3BR607632129095.250(3 1╱2)114.300(43╱4)120.650(4 1╱2)50.800(2)3╱4)50.800(2)111.4BR6480321370101.600(4)127.000(5)50.800(2)117.8(1)rasmax1.51.51.51.52222222222.52.5DaMax.57.857.8696974.374.380.780.7878799.799.7106.1Shaftdia.mm(inch)50.800(2)57.150(21╱4)63.500(21╱2)69.850(23╱4)76.200(3)82.550(31╱4)88.900(31╱2)95.250(33╱4)101.600(4)Notes(1)Maximumpermissiblecornerradiusofthehousing(2)Allowablerotationalspeedappliestooillubrication.Forgreaselubrication,amaximumof60%ofthisvalueisallowable.Remarks1. InbearingswitharollersetborediameterFwof69.850mmorless,theouterringhasanoilgrooveandanoilhole.Inothers,theouterringhasanoilgrooveandtwooilholes.2.Nogreaseisprepacked.Performproperlubrication.D49
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