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.
rate switching gyro end item identification, 0.4210 inches minimum and 0.4220 inches maximum flange outside diameter, 0.0290 inches minimum and 0.0310 inches maximum flange width, 0.1873 inches minimum and 0.1875 inches maximum bore diameter, straight bore shape