A cylindrical body having a centrally located hole to accommodate a pin or shaft for attachment to a push rod guide, yoke, rocker arm, turntable, or rail. The item provides a rolling contact with the face of a valve stem, or the lobes of a cam ring or camshaft on engines, fuel injection pumps, latches, turntables, parallel bearing surfaces requiring a roller support, and the like. Excludes:bearing, roller, cylindrical; roller, electrical switch; and friction bearings. See also cam follower, needle bearing.
4.2485 inches minimum and 4.2495 inches maximum bore inside diameter, 0.500 inches nominal counterbore depth, 0.250 in. radius chamfer/radius of outside corner, 4.750 inches minimum and 4.751 inches maximum counterbore diameter, not casehardened casehardening indicator