Profile: Luoyang Yisong Precision Bearing Technology Development Co, Ltd. is a supplier of slewing bearings/slewing rings and track roller bearings. Slewing bearings are a large-scales bearing with special structures which can support combined load including axial load, radial load and tilting moment simultaneously. Those types of bearings have the features of compact structure, convenient guiding rotation, easy installation and easy to maintenance. Slewing bearings are widely used in large size slewing equipment including hoisting & transport machinery, digging machinery, constructional engineering machinery, port machinery, wind power generation, radar and missile launcher.