A single or multiple-row antifriction bearing used with or without inner or outer races characterized by relatively small size rollers usually not ranging above 0.250 inch (6.35mm) diameter and generally longer in length in relation to diameter.
20.0 millimeters nominal bore diameter, separable rollers, no inner race, hardened and ground style designator, 16.0 millimeters nominal overall width, 28.0 millimeters nominal overall outside diameter