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.
unable to decode material, 0.4950 inches nominal overall width, counterbored outer rings, non-separable, face to face mounting style designator, 1.5624 inches minimum and 1.5625 inches maximum bore diameter, 1.9999 inches minimum and 2.0000 inches maximum overall outside diameter