Double row cam rollers are based on double row angular contact ball bearings and have a thick-walled outer ring with its running cylindrical (flat) surface. They have a 30 Deg contact angle with the two ball sets, They are supplied capped with a sheet steel shield on both sides that extends into a recess on the inner ring. They are greased for the life of the bearing under normal operating conditions and run for long periods at temperatures above 70 Deg C.
