With the transformation and upgrading of China's equipment manufacturing industry, high-precision bearings have become the core limiting factor for the development of the equipment manufacturing industry. Since its restructuring and establishment in 1998, Harbin Xinha Precision Bearing Co., Ltd. (HBB) has been committed to the development goal of "domestication of imported precision bearings", focusing on the research and development of key technologies for precision bearings such as noise reduction and life extension. It has achieved a large number of technical achievements and patents, making HBB one of the few domestic manufacturers capable of producing P2 and P4 level high-precision bearings.