A cylindrical device in which the inner or outer ring turns upon a single or double row of hardened balls which roll easily between the two rings, thus minimizing friction. For items with faces specially ground for duplex mounting see bearing,ball,duplex. Excludes:bearing,ball,airframe.
0.3493 inches minimum and 0.3543 inches maximum overall width, t-38 acft end item identification, 1.4563 inches minimum and 1.4567 inches maximum overall outside diameter, 0.7871 inches minimum and 0.7874 inches maximum bore diameter