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.
acft eng f-107 end item identification, angular load direction, 1.2197 inches minimum and 1.2200 inches maximum overall outside diameter, 0.5904 inches minimum and 0.5906 inches maximum bore diameter, aligning ring features provided