... bearing steel, carbon steel, stainless bearing , ceramic and plastic. Bearing precision is classified into P0, P6, P5 and P4. (see pictures for some ... bearing steel, carbon steel, stainless steel bearing, ceramic and plastic. Bearing precision is classified into P0, P6, P5 and P4. (see pictures for some ... dimensions, TP will provide you satisfying products and ser stainless steel ball bearing