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, 2.9522 inches minimum and 2.9534 inches maximum bore diameter, heavy bearing preload designation, 690.0 pounds nominal bearing preload rating, mil-g-23827 mil spec single material response lubrication material document and classification