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.
66 fed std 1st material response or sae assn std 2nd material response roller material document and classification, 0.1566 inches minimum and 0.1576 inches maximum bore diameter, 0.2812 inches nominal overall outside diameter, 0.2120 inches minimum and 0.3120 inches maximum overall width, rigid alignment type