Imperial deep bearings ID:1.984mm-12.700mm Material:GCr15,S45C,9Cr18 and Ceramic Low ... level as the Japanese and European bearings3.Tolerance level:ABEC-1(P0),ABEC-3(P6),ABEC-5(P5),ABEC-7(P4 ... request8.Ball bearings can be calssfied as “open”,”shielded”,”sealed”.(1) Single-row deep groove ball bearingsThey can sustain radial loads ... .967R1212zz12.719.053.9673.967 Deep groove ball bearings in imperial