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, groove external outer member lubrication feature, 0.7495 inches minimum and 0.7500 inches maximum bore diameter, 0.4000 inches minimum and 0.4050 inches maximum inner member width, 57.0 rockwell c minimum and 61.0 rockwell c maximum inner member hardness rating