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.
0.4995 inches minimum and 0.5000 inches maximum bore diameter, 0.6200 inches minimum and 0.6250 inches maximum inner ring width, oil lubricating lubrication material, 0.4950 inches minimum and 0.5000 inches maximum outer ring width, rigid alignment type