Founded in 1938, ZWZ (Zhongzhou Bearing Group Corporation) is a leading Chinese bearing manufacturer and a key enterprise in the national equipment manufacturing industry, headquartered in Wafangdian, Liaoning Province. With a history of over 80 years, ZWZ has evolved from a small-scale bearing factory into a comprehensive industrial group integrating R&D, manufacturing, and sales, specializing in high-precision, high-performance bearings for heavy-duty and critical applications.
ZWZ's core product portfolio covers more than 10,000 varieties of bearings, including deep groove ball bearings, cylindrical roller bearings, tapered roller bearings, spherical roller bearings, and specialized bearings for wind power, metallurgy, mining, railway, and automotive industries.
The company is a pioneer in China's wind power bearing sector, producing main shaft bearings, generator bearings, and yaw/pitch bearings that meet international standards, supporting the development of large-scale wind turbines (up to 15MW). In the metallurgical and mining fields, ZWZ's large-sized spherical roller bearings and cylindrical roller bearings are renowned for their high load-carrying capacity, impact resistance, and long service life, widely used in rolling mills, crushers, and conveyor systems.
The company is a pioneer in China's wind power bearing sector, producing main shaft bearings, generator bearings, and yaw/pitch bearings that meet international standards, supporting the development of large-scale wind turbines (up to 15MW). In the metallurgical and mining fields, ZWZ's large-sized spherical roller bearings and cylindrical roller bearings are renowned for their high load-carrying capacity, impact resistance, and long service life, widely used in rolling mills, crushers, and conveyor systems.
Technological innovation is a core driver for ZWZ. The company has established a national-level technical center, a postdoctoral research workstation, and cooperates with renowned universities and research institutions to develop advanced bearing technologies. It has mastered key technologies such as high-precision bearing manufacturing, heat treatment, and surface engineering, with numerous national patents and technical achievements. ZWZ's products have passed international certifications such as ISO9001, ISO14001, and OHSAS18001, and are exported to over 80 countries and regions, including Europe, America, and Southeast Asia.
With a global production and sales network, ZWZ has multiple manufacturing bases in China and overseas offices and distributors in key markets. The company is committed to providing customized solutions and professional after-sales services, making it a trusted partner for domestic and international customers in the heavy industry sector.