DEMY (D&M) BEARINGS CO., LTD is a renowned Chinese manufacturer and exporter of ball bearings and roller bearings. The company focuses on the R&D of various high-precision, low-noise and long-service-life bearings. Our business scope also extends to motorcycle parts, auto parts and robotic automation products, including bearing retainer sets and roller conveyor chains. We concentrate heavily on the American market.



Our subsidiary factory, Ningbo Giant Bearing Manufacturing Co., Ltd., has obtained ISO/TS16949:2009 quality management system certification. The factory is equipped with 100 automatic grinding production lines and automatic assembly lines, with an annual production capacity of 100 million sets. The company adopts comprehensive measuring and testing equipment and solutions to consistently guarantee outstanding product quality.

