Its many forms, but basically similar structure and composition.

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Slewing usually worm, slewing ring, shell, motor and other parts. As the core components using slewing, it can withstand the axial force, radial force, overturning moment. Its many forms, but basically similar structure and composition.
Composition:
1 cup (with teeth or without teeth) 2. Sealing strip 3. Rolling element (ball or roller) 4. Refueling nozzle
The left and right respectively (the lower part): 1. Plug 2. Plug pin 3. Inner (with teeth or without teeth) 4. Isolated blocks or the holder 5. Mounting hole (screw hole or aperture)
Slewing widely used construction machinery is initially applied slewing is the most widely used in places such as earthmoving machinery, excavators, disintegration machine, stacker reclaimer, graders, rollers, compaction machines, drilling machines, boring machines.
Lifting: wheeled cranes, crawler cranes, gantry cranes, tower cranes, forklifts, with cranes, gantry cranes;

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