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.
57.5 rockwell c nominal inner member hardness rating, 32.0 rockwell c nominal outer race member hardness rating, 0.7450 inches minimum and 0.7500 inches maximum inner member width, 0.7495 inches minimum and 0.7500 inches maximum bore diameter, groove and perforation outer race member lubrication feature