External gear four point angular contact ball bearing for medium duty crane
A four-point contact ball bearing makes it easy to simplify machine designs that have a combination of radial, thrust and moment loads because it can handle all three simultaneously. They are primarily used for slow to moderate-speed applications, or where oscillatory movement is predominant.
Selection of a suitable slewing ring for common applications can be carried out from the point of view of the static load rating by means of the diagrams (curves) for the limiting static load of the raceways and fixing bolts based on the calculated equivalent axial and moment static load.Slewing rings allow accomodation of combined loads, i.e. both axial and radial forces and tilting,moments including,eccentric loads.
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