CAM=(CA-SKF)=One Piece Brass Cage, Guide Ring. E4=(W33-SKF)=Lubrication Groove And Three Holes In Bearing Outer Ring. P55=(C08)=P5 Running Accuracy (C02 and C04). S11=(Segment Heat Stab., Code 1)= (S1-SKF)=Inner And Outer Ring Heat Stabilized To 200&