Pitch and Yaw Bearings
Challenges for pitch & yaw bearings of wind turbines:
- Small adjustment movements, vibrations and high humidity (especially for off-shore turbines)
- High torques
- Low temperature conditions
- Lifetime lubrication
Main characteristics to solve the challenges:
- Formulation designed to meet lifetime lubrication requirements
- White solid lubricants dampening vibrations which help to minimize wear (surface protection)
- Very good low temperature behavior
Overview of relevant lubricating solutions for pitch & yaw bearings
| Base oil | Thickener | Solid lubricants | NLGI class | Temperature range | Progr. lubrication system suitability | |
| GLEITMO 585 K | Synthetic | Lithium | White solids | 2 | -45 / +130 °C | |
| GLEITMO 585 K PLUS | Synthetic | Lithium | White solids | 2 | -45 / +130 °C | yes |
| GLEITMO 850 ST | Semi-synthetic | Hybrid | White solids | 1 | -40 / +130 °C | yes |
| STABYL LX 460 SYN | Synthetic | Lithium | White solids | 1-2 | -40 / +140 °C | yes |
GLEITMO 585 K was developed to address the specific needs of pitch and yaw bearings.
This innovative formula uses a proprietary combination of reactive solids that chemically bond to the surface of the bearing. This creates a durable, solid layer of protection, reducing metal-to-metal contact and related friction and wear during oscillation.
Key Features
- Exceptional wear protection
- Reduced friction
- Extended bearing service life
- Approvals: GE Energy, Nordex, Goldwind, MHI, Acciona, Clipper, INOX WIND, ThyssenKrupp Rothe Erde, IMO, ZS Schmieranlagen Vertriebs GmbH & Co.KG, BIJUR DELIMON, Baier + Köppel GmbH + Co
Performance Advantages
- Operating temperature range: -45°C to 130°C (-49°F to 266°F)
- Outstanding wear protection, especially at shock loads and oscillatory movements
- Excellent protection against standstill marks, fretting corrosion and tribo-corrosion
Test Results that Speak for Themselves
In each industry specific performance testing below, GLEITMO 585 K provides superior test results versus the competitor's offerings. The results are reflected in real world grease performance.
The Benefits of GLEITMO 585 K
GLEITMO 585 K shows superior wear protection when compared to a competitor's wind grease. The pictures below are shown at 40 and 200 times magnification.
40X
SRV with competitor grease
40X
SRV with GLEITMO 585 K
200X
SRV with Competitor Grease
200X
SRV with GLEITMO 585 K
As the wind industry evolves, so do its demands for safety, environmental responsibility, and operational efficiency. GLEITMO 850 ST enhances the strengths of GLEITMO 585 K and offers a next-generation solution.
Key Features
- Patented Polyurea-Calcium thickener system combined with semi-synthetic base oils
- Extreme Pressure (EP), Anti-Wear (AW), and Corrosion Protection additives
- White solids for excellent surface protection and reduced false brinelling
- No PFAS, ensuring compliance with future environmental regulations
- No Lithium soap, avoiding exposure to volatile raw material markets
Performance Advantages
- Suitable for onshore and offshore turbine applications
- Wide temperature range from -40°C to +120°C (-40°F to 248°F)
- Outstanding water and saltwater resistance
- Pumpable in centralized lubrication systems using progressive distributors. (System compatibility should be verified with your manufacturer.)
- Supports long bearing service life
- No occupational safety restrictions, making it a future-proof product for your operations
With decades of experience and a relentless focus on innovation, FUCHS offers a full portfolio of solutions tailored to the unique needs of the wind energy sector: