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.
grease or oil lubrication material, 24.9982 inches minimum and 25.0000 inches maximum bore diameter, 26.99820 inches minimum and 27.00000 inches maximum overall outside diameter, angular load direction, straight bore shape