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Reliable bearings and competent service for wind energy applications

The operating conditions of wind turbines are complex and demanding; hence the bearings must work efficiently and offer supreme reliability.

NKE supplies a wide range of bearings to specialised industries, including the following commonly used types for wind energy applications:

Cylindrical roller bearings (fig. 1 & 2)

  • Suitable for high radial loads
  • Multi-row and full complement versions available for even higher radial loads
  • Special specifications (optimised geometry) and customised designs
    available
  • Modular system allows for standardisation of planet wheel bearings
  • Special coatings for enhanced tribological properties
  • For both gear boxes and generators

Tapered roller bearings (fig. 3)

  • Suitable for high radial and thrust loads
  • Able to take up tilting moments
  • When paired, can take up thrust loads in both directions
  • Usually custom designs and for gear boxes

Spherical roller bearings (fig. 4)

  • Suitable for large radial loads and low to medium speeds
  • Allows compensation for misalignment
  • Usually for main shafts and gear boxes

Four-point contact ball bearings (fig. 5)

  • Able to take up thrust and limited radial loads
  • Standard cage material: solid, one-piece brass cage (MPA)
  • Usually for gearbox high speed output shaft

Deep groove ball bearings (fig. 6)

  • Suitable for very high rotating speeds
  • Well suited for medium high radial and axial loads in one or both directions
  • Numerous clearance and tolerance classes available for different operating conditions
  • Mainly for generators

Electrically insulated bearings (fig. 6)

  • Preventing damages caused by passage of electric currents
  • 100% interchangeable with standard bearings
  • Depending on size and type of bearings, several versions available:
    - insulation coating (oxide ceramic) on outer or inner ring
  • More information about electrically insulated bearings >>

Competent services

Equipped with experience and know-how, our technical and commercial teams work closely together with our customers. Our services include:

  • Consultancy
  • Technical calculation
  • Certification support
  • Product development, design support
  • Training

Special bearings– If your application requires special sizes, load or speed ratings, we can provide you with rapid, practical and creative custom-made solutions.  Just contact us!

[Translate to English:] Abb. 1 Mehrreihige Zylinderrollenlager
[Translate to English:] Abb. 1 Mehrreihige Zylinderrollenlager
[Translate to English:] Abb. 2 Vollrollige Zylinderrollenlager (ohne Käfig)
[Translate to English:] Abb. 2 Vollrollige Zylinderrollenlager (ohne Käfig)
[Translate to English:] Abb. 3 Kegelrollenlager
[Translate to English:] Abb. 3 Kegelrollenlager
[Translate to English:] Abb. 4 Pendelrollenlager
[Translate to English:] Abb. 4 Pendelrollenlager
[Translate to English:] Abb. 5 Vierpunktlager
[Translate to English:] Abb. 5 Vierpunktlager
[Translate to English:] Abb. 6 Rillenkugellager (hier mit elektrisch isolierender Beschichtung am Außenring)
[Translate to English:] Abb. 6 Rillenkugellager (hier mit elektrisch isolierender Beschichtung am Außenring)