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.
0.5289 inches minimum and 0.5297 inches maximum bore diameter, rigid alignment type, steel overall material, 0.6770 inches minimum and 0.6870 inches maximum overall width, 0.9995 inches minimum and 1.0000 inches maximum overall outside diameter