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.
22.0 degrees nominal contact angle, 25.00 millimeters nominal bore diameter, 100.0 pounds nominal bearing preload rating, angular load direction, 0.0017 inches minimum radial and 0.0021 inches maximum radial internal clearance