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, 40 min,50 max deg by 0.020 in. nom lg chamfer chamfer/radius of outside corner, 0.218 inches minimum and 0.219 inches maximum bore inside diameter, 0.250 inches nominal face width, 40 min,50 max deg by 0.010 in. min,0.020 in. max lg chamfer chamfer/radius of inside corner