>> P.192
Boundarydimensionsmm(inch)dDCBFwS(1)111111111.5357.150(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)44.450(1 3╱4)44.450(1 3╱4)50.800(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)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)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)38.35044.70038.35044.70038.35044.70038.35044.70044.70051.050Mass(Ref.)g7358558109458851040965113015201740numberBRI284824BRI284828BRI325224BRI325228BRI365624BRI365628BRI406024BRI406028BRI446828BRI446832BRI487232186076.200(3)114.300(4 1╱2)50.800(2)51.05088.900(3 1╱2)3BRI527632198082.550(3 1╱4)120.650(4 3╱4)50.800(2)51.05095.250(3 3╱4)3BRI568032212088.900(3 1╱2)127.000(5)50.800(2)51.050101.600(4)3MACHINEDTYPENEEDLEROLLERBEARINGSWithInnerRing,InchSeriesShaftdia.44.450-88.900mmShaftdia.Identificationmm(inch)44.450(13╱4)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)Notes(1)Allowableaxialshiftamountofinnerringtoouterring(2)Maximumpermissiblecornerradiusoftheshaftorhousing(3)Allowablerotationalspeedappliestooillubrication.Forgreaselubrication,amaximumof60%ofthisvalueisallowable.Remarks1. Inbearingswithabearingborediameter,d,of57.150mmorless,theouterringhasanoilgrooveandanoilhole.Inbearingswithabearingborediameter,d,of76.200mmorless,theinnerringhasanoilgrooveandanoilhole.Inothers,theinnerringandtheouterringeachhaveanoilgrooveandtwooilholes.2.Nogreaseisprepacked.Performproperlubrication.D53
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