C=Two-Piece Pressed Steel Cage With Guide Ring. C=Two-Piece Pressed Steel Cage With Guide Ring. K=Tapered Bore, Taper 1:12. E4=(W33-SKF)=Lubrication Groove And Three Holes In Bearing Outer Ring. S11=(Segment Heat Stab., Code 1)= (S1-SKF)=Inner And Ou