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.
0.4722 inches minimum and 0.4724 inches maximum bore diameter, acft eng f-107 end item identification, 0.9447 inches minimum and 0.9449 inches maximum overall outside diameter, 0.5424 inches minimum and 0.5524 inches maximum overall width, radial load direction