DEMY (D&M) BEARINGS CO., LTD is one of leading ball & roller bearing manufacturers & exporters in China. It is specialized in research and development for various kinds of high precision, non-noise, long-life bearings. Also extend business to motorcycle parts and hardware(Former Holder set, Roller Conveyor Chain, Infra Red Burner).

Our factory – Ningbo Giant Bearing Manufacturing Co., Ltd. has got ISO/TS16949:2009 quality manufacturing system certificate and acquire with 100 sets of automatic grinding production lines, automatic assembly lines with the annual production capacity of 100 millions sets. Perfect measuring and testing measures & instruments has been adopted by the company to ensure excellent quality.