A slewing bearing or slewing ring is a rotational rolling-element bearing or plain bearing that typically supports a heavy but slow-turning or slow-oscillating load. It is widely used in lifting equipment, such as wheeled crane, crawling crane, gantry crane, tower crane slewing bearing(http://www.sl

The size of the slewing ring required is dependent on the demands made on its:Static and dynamic load carrying capacity.LifeOperational reliability Definition of static load carrying capacitySlewing rings that undergo rotary motion only infrequently, undergo slow swivel motion, rotate only slowly or

The raceway tracks of a slewing ring are hardened,the process of hardening these has a beginning an a end as the hardening may not overlap there is a small gap where there is no hardening. That is the so called soft zone of the slewing ring. This position is marked on the outside of every slewing ri

In past few years since the establishment of Xuzhou Wanda Slewing Bearing Co., Ltd. in 2011, it enjoyed rapid development in the industry of slewing ring and won a high reputation home and abroad.