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.
3.1492 inches minimum and 3.1496 inches maximum overall outside diameter, 1.9682 inches minimum and 1.9685 inches maximum bore diameter, mil-g-81322 mil spec single material response lubrication material document and classification, 0.0012 inches minimum radial and 0.0020 inches maximum radial internal clearance, radial load direction