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, 0.020 in. min,0.030 in. max chamfer chamfer/radius of outside corner, 0.999 inches minimum and 1.000 inches maximum outside diameter, 0.374 inches minimum and 0.375 inches maximum bore inside diameter, 0.620 inches minimum and 0.625 inches maximum face width