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.
mounting groove features provided, straight bore shape, 4.3304 inches minimum and 4.3307 inches maximum bore diameter, 0.9920 inches minimum and 1.0000 inches maximum inner ring width, 0.0033 inches minimum radial and 0.0042 inches maximum radial internal clearance