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.
swivel gear joint assy,seawolf class ssn end item identification, 3.0006 inches minimum and 3.0020 inches maximum bore diameter, separable rollers, closed end, drawn shell style designator, 3.5050 inches minimum and 3.5070 inches maximum overall outside diameter, 0.7400 inches minimum and 0.7500 inches maximum overall width