A detachable assembly consisting of an outer and inner ring, designed for use in a track roller or similar application. It is used to carry a load and reduce sliding friction. It does not employ rolling elements, but may incorporate non-metallic liners or sleeves to aid in reducing friction and/or providing lubrication. See also bearing, ball, track roller; and bearing, roller, track roller. Excludes:bearing, plain, spherical and bearing, plain, self-aligning.
45.0 rockwell c minimum outside diameter surface of body hardness rating, 0.4950 inches minimum and 0.5000 inches maximum inner member width, c-17a end item identification, 0.3745 inches minimum and 0.3750 inches maximum bore diameter, 55.0 rockwell c minimum and 60.0 rockwell c maximum race liner hardness rating