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