22313CA/W33

ZWZ (Wafangdian Bearing Group) was founded in 1938 in Wafangdian, Liaoning Province, China, and is China's largest bearing manufacturer. ZWZ produces a comprehensive range including large-bore spherical roller bearings, cylindrical roller bearings, and tapered roller bearings for steel mills, wind turbines, mining, and rail applications. ZWZ part numbers generally follow ISO/GB (Chinese national standard) designations, which align with international standards but include Chinese-specific suffixes and tolerance codes requiring cross-reference.