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.
56.0 rockwell c nominal inner member hardness rating, 0.4950 inches minimum and 0.5000 inches maximum inner member width, groove external outer member lubrication feature, 0.4995 inches minimum and 0.5000 inches maximum bore diameter, groove inside diameter surface of body lubrication feature