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.
angular load direction, 32.00 millimeters nominal overall outside diameter, 13.00 millimeters nominal bore diameter, 0.0005 inches minimum radial and 0.0009 inches maximum radial internal clearance, andor c,humble oil and refining co mfr ref single material response lubrication material document and classification