Yantai Haoyang Machinery Co., Ltd (Professional Slewing Bearing manufacturer ) is mainly engaged in production and sales of slewing bearings and rings. The central raceway diameter of slewing bearing ranges from 200mm to 3150mm. Haoyang offers various bearing as below: Single-row ball slewing bearing Single-row crossed roller slewing bearing Double-row ball slewing bearing Three-row roller slewing bearing Ball & roller combination slewing bearing Light type profile bearings Main applications of slewing bearings: excavator, tower crane, truck crane, port crane, marine crane, tunnel borer, wind energy, packaging and filling machinery, forklift, personnel lift, robot, radar, medical scanner, aerospace & aviation, and automotive & ship engineering.