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.
3.2497 inches minimum and 3.2500 inches maximum bore diameter, light bearing preload designation, angular load direction, 10.0 pounds minimum and 20.0 pounds maximum bearing preload rating, 27.0 degrees minimum and 33.0 degrees maximum contact angle