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.
5.1246 inches minimum and 5.1250 inches maximum bore diameter, 1.7450 inches minimum and 1.7500 inches maximum overall width, 6.4994 inches minimum and 6.5000 inches maximum overall outside diameter, 8 equally spaced holes thr inner rings,0.075 in. min,0.090 in. max dia special features