Sven Wingquist Test Center

Test large-size bearings under real conditions

Real, rather than simulated testing, delivers the most accurate insights into how to improve simulation software and finally also manufacturing of large size bearings from the point of safety, cost and performance. This new SKF test center is the only site in the world capable of testing bearings in this category under conditions that will most accurately represent real-life dynamic loads. For high cost critical components, such as wind turbine main bearings, we now have the capability to design the optimal performing, most economical bearings for customers’ application needs.

Unique large-size bearing test rigs provide real-life results

The Sven Wingquist Test Center is home to two gigantic rigs. They enable accurate testing methods that will support the proprietary improvements in large size bearing design.

Main shaft test rig

The main shaft test rig is mainly designed to develop single main bearings and full main shaft arrangements for wind turbines. It is the first test rig in the world to apply combined dynamic loads to large size bearings with a hydraulic system that recreates extreme operating conditions for today’s and tomorrow’s largest turbine classes.

  • Dynamic application of high load, especially bending moments
  • Radial load: 8 MN
  • Axial load: 8 MN
  • Bending moment: up to 40 MNm (typically)
  • Rotational speed: 30 r/min
  • Bearing size: up to 6 m

Dynamic development test rig

Dedicated to dynamic testing at high rotation speeds for large size bearings in the most demanding conditions in the world in pulp and paper, maritime industry, cement, mineral crushers and grinders, steel production and other heavy industries.

  • High speeds and dynamic application of load for large size bearings
  • Radial load: 7 MN 
  • Axial load: 3 MN
  • Bending moment: 10 MNm
  • Rotational speed: 250 r/min
  • Bearing size: up to 2,5 m

A center for sustainability

The Sven Wingquist Test Center has been built to the most advanced environmental standards possible. With test run time reduction due the unique capabilities of the test rigs, there is huge potential for energy savings. Another contribution to environmental friendliness is the fact that waste heat is recovered and fed into the heating system of the SKF factory close by. This resource- saving capability of both test rigs has gained the support of the German Federal Ministry for the Environment, Nature Conservation, Construction and Reactor Safety, as well as the support of the Bavarian Ministry of Economics and Media, Energy and Technology.