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.
rigid alignment type, steel overall material, 0.3020 inches minimum and 0.3120 inches maximum overall width, 0.4998 inches minimum and 0.5001 inches maximum bore diameter, 0.6825 inches minimum and 0.6828 inches maximum overall outside diameter