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.
0.3070 inches minimum and 0.3170 inches maximum inner ring width, 0.6150 inches minimum and 0.6350 inches maximum overall outside diameter, 0.2500 inches nominal outer ring width, 0.1895 inches minimum and 0.1925 inches maximum bore diameter, 1.2200 inches minimum and 1.2800 inches maximum length from bore center to shank end