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.
0.5600 inches minimum and 0.5700 inches maximum outer ring width, 0.6200 inches minimum and 0.6250 inches maximum inner ring width, rigid alignment type, 0.3750 inches minimum and 0.3765 inches maximum bore diameter, 1.7900 inches minimum and 1.8100 inches maximum overall outside diameter