... collar and the cage reliably guides and clamps a lot of rolling bodies. There is a little difference amongthe rolling bodies ... having the good rigidity and axial small space. Thrust Collar, Shaft Ring and Seat RingThrust Collar, Series AS, LS, GS, WS ... with the quenching process. The outer surface of GS seat ring and theinner surface of WS shaft ring are ground. Series LS thrust ...