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.
not casehardened casehardening indicator, 1.021 inches minimum and 1.031 inches maximum face width, 0.436 inches minimum and 0.437 inches maximum bore inside diameter, 0.874 inches minimum and 0.875 inches maximum outside diameter, 0.021 in. min,0.031 in. max radius chamfer/radius of outside corner