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.
astm a108 assn std single material response inner member material document and classification, perforation inner member lubrication feature, 1.5150 inches minimum and 1.5250 inches maximum bore diameter, 1.3070 inches minimum and 1.3170 inches maximum inner member width, 60.0 rockwell c minimum inner member hardness rating