... Bearing series List: Tapered Roller Bearing series: 30202-----30230 Special-light Series: 32004----32030 Light-duty Series: 33008----33030Medium-duty Series: 32205 ... made from refining high-carbon chromium bearing steel GCr15. b. Carbon Steel6. Concrete parameters: Tapered Roller Bearing ... a. Auto wheel hub, Auto engine, Auto axle b. Agricultural machinery, Rotary plow bearings, Tractor, Water pump ...