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.
3.9367 inches minimum and 3.9370 inches maximum overall outside diameter, 2.1651 inches minimum and 2.1654 inches maximum bore diameter, 0.0028 inches minimum radial and 0.0032 inches maximum radial internal clearance, 1.6335 inches minimum and 1.6535 inches maximum overall width, radial load direction