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.
0.0010 inches minimum radial and 0.0014 inches maximum radial internal clearance, mil-g-23827 mil spec single material response lubrication material document and classification, 0.9449 inches nominal overall outside diameter, radial load direction, 0.4724 inches nominal bore diameter