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.
0.6250 inches nominal bore diameter, 0.6250 inches nominal overall width, ams 6440 assn std single material response roller material document and classification, 0.8750 inches nominal overall outside diameter, rigid alignment type