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.
55.0 rockwell c minimum inner member hardness rating, 23.0 rockwell c minimum outer race member hardness rating, 0.2495 inches minimum and 0.2500 inches maximum bore diameter, 0.6557 inches minimum and 0.6562 inches maximum outer member outside diameter, 0.3410 inches minimum and 0.3430 inches maximum inner member width