>> P.188
(1)ras max1.51.51.51.5222222222Boundary dimensionsmm(inch)Standard mounting dimensionsmmFwDC50.800(2 )50.800(2 )65.088(2 9╱16)65.088(2 9╱16)25.400(1 )31.750(1 1╱ 4)DaMax. 57.8 57.857.150(2 1╱ 4)57.150(2 1╱ 4)76.200(3 )76.200(3 )38.100(1 1╱ 2)44.450(1 3╱ 4) 69 6963.500(2 1╱ 2)63.500(2 1╱ 2)82.550(3 1 4)82.550(3 1 4)38.100(1 1╱ 2)44.450(1 3╱ 4)69.850(2 3╱ 4)69.850(2 3╱ 4)88.900(3 1 2)88.900(3 1 2)38.100(1 1╱ 2)44.450(1 3╱ 4) 74.3 74.3 80.7 80.776.200(3 )76.200(3 )95.250(3 3 4)95.250(3 3 4)38.100(1 1╱ 2)44.450(1 3╱ 4) 87 87Mass (Ref.)g190240435510475555510600555650Identification numberBR 324116BR 324120BR 364824BR 364828BR 405224BR 405228BR 445624BR 445628BR 486024BR 486028BR 526828BR 5268329901 14082.550(3 1╱ 4)82.550(3 1╱ 4)107.950(4 1 4)107.950(4 1 4)44.450(1 3╱ 4)50.800(2 ) 99.7 99.7BR 5672321 22088.900(3BR 6076321 29095.250(31╱ 2)3╱ 4)114.300(4120.650(41╱ 2)50.800(2 )106.13╱ 4)50.800(2 )111.42.5BR 6480321 370101.600(4 )127.000(5 )50.800(2 )117.82.5Shaft dia. 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)MACHINED TYPE NEEDLE ROLLER BEARINGSWithout Inner Ring, Inch SeriesShaft dia. 50.800-101.600mmNotes(1)Maximum permissible corner radius of the housing (2)Allowable rotational speed applies to oil lubrication. For grease lubrication, a maximum of 60% of this value is allowable.Remarks1. n bearings with a roller set bore diameter Fw of 69.850 mm or less, the outer ring has an oil groove and an oil hole. In others, the outer ring has an oil groove and two oil holes.2.No grease is prepacked. Perform proper lubrication.D49
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