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.
npe-uc7,mfz associates mfr ref single material response lubrication material document and classification, 30.0 pounds nominal bearing preload rating, 0.8748 inches minimum and 0.8750 inches maximum bore diameter, radial load direction, 1.3121 inches minimum and 1.3125 inches maximum overall outside diameter