Slewing Bearing All Types

Slewing bearings are widely used in hoisting machinery, port and marine machinery, high-precision machines, and large-scale rotary devices. Their weight is low, high load capacity, and excellent versatility make them a good choice for many applications. SKF offers different types of slewing rings, including Crossed roller slewing ring bearings and Single row contact ball slewing bearings.

SKF offers a variety of slewing rings

Slewing rings are large bearings with multiple configurations that handle axial, radial, and moment loads. They can range in diameter from several feet to 20 feet and are made up of an inner ring and an outer ring. Double and triple rows of ball bearings or rollers are available to handle heavier loads. Both rings can be lubricated internally and feature a rubber seal to prevent outside contamination.

Combined cylindrical roller/ball slewing bearing

Combined cylindrical roller/ball slew bearings are used in machines that must withstand loads of axial or radial nature. These bearings have an outer and inner ring with three rows of rollers. They have good load carrying capacity and are highly rigid. They also feature mounting holes and sealing accessories. They are suitable for axial and radial loads and can handle high-speed rotations.

Crossed roller slewing ring bearing

Crossed roller slewing rings are composed of two overlapping ring structures, namely an inner and an outer one. It is designed for different combinations of axial force and overturning moment. Its dual-action design reduces friction between rollers and is used for axial, radial and tilting loads. Crossed roller slewing ring bearings are widely used in mining and construction machinery.

Single row contact ball slewing bearing

Single row contact ball slewing bearing has two seat rings, which are made of a compact structure. The steel ball is in contact with the arc raceway at four points. Its compact design makes it suitable for use in small to medium cranes and excavators. It can withstand radial and axial forces, which is the reason why it is widely used in construction machinery. It is lightweight and can be easily installed on a small crane.

Light series slewing bearing

The Silverthin(tm) slewing ring bearings have unique four point contact raceway geometry and are suitable for three different loading scenarios. To determine their load rating, multiply the applicable service factor by the applied loads and compare the results to the loading curves provided. Listed below are some advantages of Silverthin(tm) slewing ring bearings. They are also characterized by a relatively small cross section.