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.
349.903 millimeters minimum and 350.0 millimeters maximum bore diameter, 414.903 millimeters minimum and 415.0 millimeters maximum overall outside diameter, straight bore shape, rigid alignment type, radial load direction