Two single row annular ball bearings selected dimensionally to be a matched pair or set. The ring faces have been specially ground to specified offsets that will produce predetermined preload when mounted. May include a single row angular contact bearing with faces specially ground for duplex mounting.
0.0003 inches minimum radial and 0.0008 inches maximum radial internal clearance, 0.3120 inches nominal overall width, angular load direction, 0.7498 inches minimum and 0.7500 inches maximum bore diameter, 0.9998 inches minimum and 1.0000 inches maximum overall outside diameter