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.
mil-g-23827 mil spec single material response lubrication material document and classification, 0.7492 inches minimum and 0.7500 inches maximum bore diameter, copper alloy outer race member material, 0.7450 inches minimum and 0.7500 inches maximum inner member width, grease lubrication material