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.
0.0005 inches minimum radial and 0.0011 inches maximum radial internal clearance, radial load direction, acft eng f-101 end item identification, 2.4406 inches minimum and 2.4409 inches maximum overall outside diameter, 0.9841 inches minimum and 0.9843 inches maximum bore diameter