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.
0.995 inches minimum and 0.997 inches maximum face width, 0.438 inches minimum and 0.440 inches maximum outside diameter, 0.138 inches minimum and 0.140 inches maximum bore inside diameter, 0.120 in. radius chamfer/radius of outside corner, not casehardened casehardening indicator