A special single or multiple-row ball bearing, rigid or self-aligning, and constructed with either a solid or hollow shank, internally or externally threaded.
0.4790 inches minimum and 0.4840 inches maximum inner ring width, 3.8400 inches nominal overall length, rigid alignment type, 3.1200 inches nominal length from bore center to shank end, 1.2400 inches nominal overall outside diameter