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.
2.4407 inches minimum and 2.4409 inches maximum overall outside diameter, aligning ring features provided, 4920-01-093-0521 test stand,aircraft end item identification, radial load direction, 1.3777 inches minimum and 1.3780 inches maximum bore diameter