... noisy lever:Z1,Z2 Spherical roller bearing 1.Spherical roller bearings rear code:Will the code for K,K30 taper hole spherical roller bearing ,installed in the set ... of matched, become the code for K+H and K30+H+H bearing 2. ... taper is 1:12K30Tapered bore bearing,the taper is 1:30W33With lubrication groove in outer ring,with three oil holesC2/C3/ ...