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.
rigid alignment type, 4.9990 inches minimum and 5.0000 inches maximum bore diameter, 2.5100 inches minimum and 2.5150 inches maximum overall width, afbma std tolerance for industrial needle bearings standard tolerance designation, 7.4988 inches minimum and 7.5000 inches maximum overall outside diameter