Wind turbine performance depends on the durability of key components, particularly the main shaft bearing. If a bearing wears out, it increases friction and vibration, accelerating wear on other drivetrain components. This leads to more frequent repairs and unexpected turbine shutdowns.
To address these challenges, SKF has developed SKF DuraPro bearings for wind turbine main shafts, designed to accommodate various turbine designs, withstand higher loads, and extend bearing rating life without increasing component size. This development is the result of intensive research, real-world testing, continuous innovation, improvements in materials and heat treatments, and enhanced surface finishes.
Proven performance
Testing and operational data confirmed the advantages of SKF DuraPro for wind turbine main shafts:
- Longer bearing rating life within the same mounting space
- Lower unplanned maintenance, leading to fewer turbine shutdowns and reduced operating costs
- Higher drivetrain efficiency, supported by smoother turbine operation and reduced vibration levels
- Improved robustness under mixed lubrication conditions, and thus reduced risk of surface-initiated failures
Additionally, a DNV Statement of Compliance confirms the bearing rating life increase calculated according to ISO/TS 16281.
By integrating SKF DuraPro bearings into main shafts, wind farms can minimise operational disruptions and improve overall turbine reliability, demonstrating the real-world impact of SKF’s engineering advancements.
