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Large Axial Load Single-Row Slewing Bearing Spherical Type (QU/QW/QN series)
- Dec 17, 2016 -
Basic Info
  • Model NO.: QU QW QN series

  • Specification: ISO9001; CE

  • Trademark: FNB


 
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
 


slewing bearings are a cost-effective design and performance enhancement option for rotary devices carrying heavy loads.

Slewing rings have a compact design, which facilitates more ease of use and can be manufactured without teeth, with internal or external teeth, with balls and/or with rollers. The patented hourglass design of Kinematics' slewing ring bearings is especially effective. The design of their slewing rings allows more teeth to be engaged at one time, leading to higher torque endurance and, essentially, a stronger and more durable slewing bearing.

The slewing bearing drives in heavy machinery enable higher torque, speed reduction and rotational functions. Applications include solar trackers, digger derricks, truck cranes, wind turbines, utility equipment, hydraulic equipment attachments and tire handlers. Their range of applications make slewing ring bearings an integral part of particular industries, including aerospace, automotive, forestry, manufacturing, medical, military, nautical, power, robotics and surveillance.