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Slewing rings

 
Slewing rings are usually used for low revolution, carrying high thrust loads and/or combined with radial loads. They can be manufactured without teeth, with internal or external teeth, with balls and/or with rollers. Depending on the application, Slewing rings are divided into five types:
 
1. Single-row ball slewing ring
*Four point contact bearing, balls arranged 1:1
*Two seat rings (one on inner- and one on outer ring)
*Compact structure
*Light in weight
*Axial load, radial load and tilting moment simultaneously

 
2. Single-row roller slewing ring
*Rollers are arranged crossways 1:1
*Two seat rings (one on inner- and one on outer ring)
*Compact in design
*Light in weight
*Small clearance
*Axial load, resultant moment and considerable radial force

  
3. Double-row ball slewing ring
*Eight point contact bearing, with same or different ball diameters
*Three seat rings
*Open fitting, convenient for installation purposes
*Suitable for large connecting structures
*Large axial load and tilting moment

 
4. Three-row roller slewing ring
*Three seat rings 
*Suitable for highest axial loads and tilting moments
*Suitable for large connecting structures

  
5. Ball and Roller combined slewing ring
*Two seat rings
*Raceways diameter from 1270mm to 5016mm
*Suitable for relatively high axial loads

 








   
 
 
THB Bearings Co. Ltd