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.
0.3020 inches minimum and 0.3120 inches maximum overall width, 0.5620 inches minimum and 0.5625 inches maximum bore diameter, 0.7495 inches minimum and 0.7505 inches maximum overall outside diameter, rigid alignment type, oil lubricating lubrication material