A detachable assembly in or on which a journal, gudgeon, pivot, or the like moves. It is used to carry a load and to reduce sliding friction. It does not employ rolling elements. The item consists of a bored precision ground ball (or spherical plain bearing) around which an outer ring is fitted. The assembly may be either separable or nonseparable. Excludes:bearing, plain, rod end and bearing, plain, spherical.
c-17a aircraft end item identification, 0.5620 inches minimum and 0.5625 inches maximum bore diameter, plastic tetrafluoroethylene bore liner material, 0.4950 inches minimum and 0.5050 inches maximum inner member width, bearing assy,self lube,self aligning,spherical part name assigned by controlling agency