>> P.192
Mass (Ref.)gBoundary dimensionsmm(inch)dDCBFwS(1)11111111 73585544.450(1 3╱ 4)44.450(1 3╱ 4)76.200(3 )76.200(3 )38.100(1 1╱ 2)44.450(1 3╱ 4)38.35044.70057.150(2 1 4)57.150(2 1 4)81094550.800(2 )50.800(2 )82.550(3 1 4)82.550(3 1 4)38.100(1 1╱ 2)44.450(1 3╱ 4)38.35044.70063.500(2 1 2)63.500(2 1 2)8851 0409651 1301 5201 74057.150(2 1╱ 4)57.150(2 1╱ 4)88.900(3 1 2)88.900(3 1 2)38.100(1 1╱ 2)44.450(1 3╱ 4)38.35044.70069.850(2 3 4)69.850(2 3 4)63.500(2 1╱ 2)63.500(2 1╱ 2)95.250(3 3 4)95.250(3 3 4)38.100(1 1╱ 2)44.450(1 3╱ 4)38.35044.70076.200(3 )76.200(3 )69.850(2 3╱ 4)69.850(2 3╱ 4)107.950(4 1 4)107.950(4 1 4)44.450(1 3╱ 4)50.800(2 )44.70051.05082.550(3 1 4)82.550(3 1 4)1.53Identification numberBRI 284824BRI 284828BRI 325224BRI 325228BRI 365624BRI 365628BRI 406024BRI 406028BRI 446828BRI 446832BRI 4872321 86076.200(3 )114.300(4 1 2)50.800(2 )51.05088.900(3 1 2)3BRI 5276321 98082.550(3 1╱ 4)120.650(4 3 4)50.800(2 )51.05095.250(3 3 4)3BRI 5680322 12088.900(3 1╱ 2)127.000(5 )50.800(2 )51.050101.600(4 )3Shaft dia. mm(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)MACHINED TYPE NEEDLE ROLLER BEARINGSWith Inner Ring, Inch SeriesShaft dia. 44.450-88.900mmNotes(1)Allowable axial shift amount of inner ring to outer ring (2)Maximum permissible corner radius of the shaft or housing (3)Allowable rotational speed applies to oil lubrication. For grease lubrication, a maximum of 60% of this value is allowable.Remarks1. n bearings with a bearing bore diameter, d, of 57.150 mm or less, the outer ring has an oil groove and an oil hole. In bearings with a bearing bore diameter, d, of 76.200 mm or less, the inner ring has an oil groove and an oil hole. In others, the inner ring and the outer ring each have an oil groove and two oil holes.2.No grease is prepacked. Perform proper lubrication.D53
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