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