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.
19.88 millimeters minimum and 20.00 millimeters maximum overall width, 32.989 millimeters minimum and 33.000 millimeters maximum overall outside diameter, rigid alignment type, 25.020 millimeters minimum and 25.033 millimeters maximum bore diameter, steel overall material