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.
2.0 degrees minimum and 5.0 degrees maximum contact angle, nsn2320-01-123-1610 end item identification, standard internal fit-up designation, 2.1654 inches nominal bore diameter, lips turned outwardly bearing seal type