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, 0.4040 inches minimum and 0.4060 inches maximum inner member width, 0.3745 inches minimum and 0.3750 inches maximum bore diameter, bearing,self-aligning,spherical part name assigned by controlling agency, plastic polytetrafluoroethylene race liner material