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.
0.7500 inches nominal bore diameter, 6.0 pounds minimum and 10.0 pounds maximum bearing preload rating, light bearing preload designation, 0.0005 inches minimum radial and 0.0015 inches maximum radial internal clearance, contact bearing seal type