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.
mil-g-23827 mil spec single material response lubrication material document and classification, 60.00 millimeters nominal bore diameter, radial load direction, standard internal fit-up designation, 110.00 millimeters nominal overall outside diameter