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.
1.3125 inches nominal overall outside diameter, rigid alignment type, steel overall material, 0.4900 inches minimum and 0.5000 inches maximum overall width, 1.0005 inches minimum and 1.0015 inches maximum bore diameter