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.
28.0 rockwell c minimum outer race member hardness rating, 55.0 rockwell c minimum inner member hardness rating, 1.0910 inches minimum and 1.0930 inches maximum inner member width, 1.2495 inches minimum and 1.2500 inches maximum bore diameter, ams 5630 assn std single material response inner member material document and classification