Slewing ring bearing (turntable bearing), is a bearing that able to bear a large axial load, radial load and overturning torque. Slewing bearings are generally accompanied with installing holes, inner gear, outside gear, lubricating hole and sealing devices, which enable mainframe structural compact in design, guide reliable, and easy to maintain.
Slewing bearings are combination structure including non- gear, outside gear, and four point contact ball bearings, double row angular contact ball bearings, cross-cylindrical roller bearings and three rows cylindrical roller bearings and so on. In which, four point contact ball bearings have higher static load capacity; while cross-cylindrical roller bearings have higher dynamic load capacity.
Slewing bearings widely used in lifting machinery, excavate machinery, construction machinery, port machinery, ships machinery, as well as precision radar missile launchers and large rotary device such as missile launcher. | | | |
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