Slewing bearing working-Manufacturer & Exporter

Slewing ring (also known as slewing bearing) is an extra-large bearing that can withstand comprehensive loads (high load, low speed, and high torque). It can simultaneously withstand large axial loads, radial loads and overturning moments, which are far greater than The effect of multiple sets of ordinary bearings. The characteristic of slewing bearing is generally suitable for large-scale projects, construction machinery and equipment, wind power equipment, and port crane equipment that bear huge overturning moment and make relative rotational motion. Because the slewing bearing has the characteristics of compact structure, accurate and stable transmission, flexible rotation, long service life, easy installation and convenient daily maintenance, it is well used in these equipment.

Slewing ring bearings have gearless, external gear and internal gear. The structure types generally include single-row ball, double-row ball, cross-roller, three-row roller, ball-column combined and other forms, including single-row ball The slewing bearing has relatively low cost and excellent overall performance; the double-row ball slewing bearing has certain advantages in the service life, with strong bearing capacity, low slewing resistance, large allowable wear and no strict requirements on the installation base, but its The raceway rotation accuracy is low; the cross-roller slewing bearing has high precision, long life, and high dynamic load capacity, but it has high requirements on the rigidity and accuracy of the mounting base, and the roller and raceway are prone to contact The edge effect causes the actual stress on the edge to be much greater than the design stress; the three-row roller slewing bearing generally has a very high static bearing capacity. The ball-column combined slewing bearing is supported by the horizontal rollers to bear the axial force, and the steel ball bears the radial force. Force, the two bear the tipping moment together. Therefore, this type of slewing bearing can not only withstand large axial force, but also withstand a certain overturning moment and radial force, and has a small cross-sectional size and low production cost.