B-57 Koyo Full Complement Needle Roller Bearing 5/16 x 1/2 x 7/16

B-57 Koyo Full Complement Needle Roller Bearing 5/16 x 1/2 x 7/16

Drawn Cup Needle Roller Bearings have a thin-walled outer ring. They are designed for applications where the housing bore cannot be used as a raceway for a needle roller and cage assembly. Drawn cup needle roller bearings generally run directly on a shaft, if the shaft cannot be hardened and ground they can be combined with an inner ring.

B-57-Koyo dimension chart - all dimensions in mm unless indicated.

Fw	D	C
7.938	12.700	11.113