ZWZ roller bearings.Founded in 1938, ZWZ has nine manufacturing bases at home and abroad, ten business divisions and 26 wholly-owned and holding companies. ZWZ Group owns two brands of bearings: ZWZ and KRW. Adopting international standards, the company can produce more than 20,000 kinds of bearings in ten categories from 20m ID to 16m OD, with various accuracy levels, which are mainly used in industrial equipment, rail transportation, automobile vehicles, new energy of wind power and special fields. ZWZ has a national engineering research center for large bearings, a national enterprise technology center and a bearing testing center, as well as a European R&D center and a U.S. R&D center overseas, and has established technical innovation platforms for simulation and calculation, materials, lubrication and testing. The main products include: radial ball bearings, radial roller bearings, thrust ball bearings, thrust roller bearings, thrust angular contact ball bearings, four-point contact slewing ring bearings, double-row angular contact slewing ring bearings, crossed roller slewing ring bearings, three rows of cylindrical roller slewing ring bearings, six rows of cylindrical roller slewing ring bearings with teeth on the outer ring, joint bearings, tightening bushings, and retracting bushings.
