Welcome to Xuzhou National Construction Machinery Co., Ltd. We offer over 1000 types of excavator swing bearings for you. We are a leading manufacturer and supplier of top-quality engineering machinery components, specializing in excavator slewing ring bearings, ,slewing reducers, ,slewing gears, slewing vertical shafts, and more. Based in Xuzhou City, China, our company is located in the heart of the engineering machinery industry.Get in touch now for the latest quote.