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What is the Difference Between a Slewing Bearing and a Turntable Bearing?


1. The concept of slewing bearing and turntable bearing is different


(1) Slewing bearing


The slewing bearing is a new type of mechanical parts, which consists of inner and outer rings, rolling bodies, etc. The slewing bearing is a large bearing that can accept comprehensive loads, and can simultaneously accept large axial and radial loads and overturning moments.


(2) Turntable bearing


Turntable bearing is a kind of large bearing with special structure that can accept large axial load, radial load and overturning moment and other comprehensive loads at the same time, and integrates various functions such as support, rotation, transmission and fixation.


2. The structure of slewing bearing and slewing bearing is different


(1) Slewing bearing


Slewing bearing is generally composed of worm, slewing bearing, housing, motor and other components. Because the core components use slewing bearings, they can accept axial force, radial force and tipping moment at the same time. There are many forms, but the structure is basically the same.


(2) Turntable bearing


The turntable bearing is generally composed of four major components: the inner ring, the outer ring, the rolling body, and the blocking block. Because the core components use slewing bearings, they can accept axial force and radial force at the same time. There are many forms, but the structure is basically the same.


3. Slewing bearing and slewing bearing are used differently


(1) Slewing bearing


Slewing bearings are widely used, and construction machinery is the first and widely used tools for slewing bearings, such as earth-moving machinery, excavators, disintegrators, stackers and reclaimers, graders, road rollers, dynamic compactors, rock drilling machinery, roadheaders, etc.


Others include concrete machinery: concrete pump truck, concrete mixing and placing boom integrated machine, belt placing machine Feeding machinery: disc feeder, sand mixer; hoisting machinery: wheel crane, crawler crane, door pedestal cranes, tower cranes, fork cranes, hoists, gantry cranes.


Ground treatment machinery: impact reverse circulation drilling rig, rotary drilling rig, impact rotary drilling rig, rotary drilling rig, reverse circulation rotary drilling rig, positive circulation rotary drilling rig, long spiral engineering drilling rig, diving engineering drilling rig, static pile driver, pile driver.


Engineering ships: dredgers; special vehicles: bridge inspection vehicles, fire trucks, window cleaning machines, flat beam transport vehicles, aerial work vehicles, self-propelled aerial work channels; light industrial machinery: beverage machinery, bottle blowing machines, packaging machinery, filling machine, rotary unscrambler, injection molding machine; marine crane: floating crane.


(2) Turntable bearing


Turntable bearings are widely used, and construction machinery is the place where turntable bearings are widely used, such as earth-moving machinery, excavators, disintegrators, stackers and reclaimers, graders, road rollers, dynamic compactors, rock drilling machinery, roadheaders, etc.