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.
radial load direction, 0.6693 inches nominal bore diameter, 0.0001 inches minimum radial and 0.0003 inches maximum radial internal clearance, mil-g-23827 mil spec single material response lubrication material document and classification, tight internal fit-up designation