Fujian Yongan Bearing Co., Ltd. has a provincial engineering technology center specializing in the research and development & application of new bearing products and new technologies. The company has strong technical research and development capabilities and has more than 30 national patents, among which <structural optimized long-life tapered roller bearings>, <High-strength and low-friction torque tapered roller bearings>, <Optimized design method of double-row tapered roller bearings with contact angle α of 28°48′39>, <The design method of tapered roller bearing with roller ball base contact on middle part of inner ring ribs> and< the cylindrical roller bearing with high axial load carrying capacity>  are invention patents.