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.
unable to decode material, 2.9850 inches minimum and 3.0000 inches maximum overall outside diameter, mil-g-23827 mil spec single material response lubrication material document and classification, radial load direction, 1.0000 inches nominal bore diameter