Slewing ring, also referred to as slewing bearings or turntable bearing, is a large bearing which can maintain the more axial load, radial load and tilting moment. It is known as: “machine joints”, the fundamental machinery transmitting parts, between the two objects that need to end up being relative rotary motion. It has the inner and outer band, rolling and other components.
You can consider the 
slewing worm gear slew drive travel as a gearbox since the core motion components will be the slewing bearing and worm shaft. In addition, it consists of auxiliary elements such as seals, housing, and electric motor. As a power source, slew motor is normally DC planetary gear motor or AC gear motor. AC hydraulic motor is mainly used in the structure machinery as a power drive system. As the core component is slewing ring travel, slewing gearbox can easily endure the axial and radial forces. The slew drive working theory: The worm is powered by the motor, which drives the outer band of the slewing ring to rotate; The outer ring result the torque through the flange and the internal band of the slewing ring is set in the housing.
Slewing drive has invert self-locking due to worm gear drive with reverse self-locking features. This feature significantly enhances the stability of the web host operating and safety aspect. When compared to traditional swing products, slewing get gearbox is easy to install, easy to maintain, and saves considerable installation space.
worm gear slew drive
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