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.
radial load direction, unable to decode material, ball bearing part name assigned by controlling agency, basic size: outside diameter: 12mm; inside diameter: 14mm; radial play: .0002 to .0005 inches special features