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