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.
2.9970 inches minimum and 2.9975 inches maximum bore diameter, 1.2550 inches minimum and 1.2600 inches maximum overall width, 3.7505 inches minimum and 3.7510 inches maximum overall outside diameter, rigid alignment type, 66 fed std single material response outer ring material document and classification