External Gear Single Row Ball Slewing Ring Bearing for Tower Crane

The balls roll on the circular race at four points, so it can undertake the axial force, radial force and tipping moment at the same time.This series of four point contact ball bearings are suitable in many engineering machinery, such as tower crane, rotary conveyor, welding operation machine, small cranes, small and medium-sized excavators and so on.

Four point contact ball slewing ring application in cranes is one of important load supporting parts on a crane. It is connected with slewing table weldment of complex structure and loads. With finite element method as a tool, a model of finite element calculation is set up for Four point slewing ring of truck crane and structural strength and rigidity analysis are conducted on it.

The quality and the precision of our manufacturing is the key to ensure good running after many dismantling operations of the crane. We can supply various type of crane application. Our slew bearings are supplied for ship loaders to load and un-load various commodities. It widely used in ship cranes, harbor cranes, offshore cranes, portal cranes etc.

Below please find the detailed dimensions of this model:

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