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.
grease lubrication material, afbma std tolerance for airframe needle bearings standard tolerance designation, 0.9380 inches nominal overall outside diameter, 0.4380 inches nominal bore diameter, rigid alignment type