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.
0.3121 inches minimum and 0.3127 inches maximum bore diameter, 0.6775 inches minimum and 0.6925 inches maximum inner ring width, rigid alignment type, 0.1200 inches nominal crown radius, contact bearing seal type