There are a number of different bearing designs that can be found in the gearbox of a wind turbine, but most often, various combinations of CRBs, TRBs and ball bearings are used.
If the bearings are bigger, the bearings last longer, but making the bearings larger increases friction, which decreases turbine efficiency. Current bearings have a replacement cost that is too high. What we need is a quantum leap in bearing technology – bearing materials which are at least ten times tougher than current materials are evolving.
The team that prepared the research, “Wind turbine bearings are mission-critical devices. They function inside MW-class turbines, endure dynamic and unpredictable stresses to support movement inside the system Stress is causing untimely, expensive repairs for many wind turbines. Reliability of mainshaft bearings is an issue. Recent turbine failures have been dramatic, investigation has centered on SRBs: Self-aligning Roller Bearings. Solutions for retrofitting single self-aligning roller bearings (SRBs) in a three-point mount arrangement, including wear-resistant SRBs and a pre-loaded TRB design are in play.”
The global wind turbine bearing market is expected to be $9.6 billion in 2024 driven by the availability and cost effectiveness of new, stronger, more efficient bearings. Next generation bearings permit wind turbines to product more power, operate in a less expensive manner, and last longer before bearing replacement. The adoption of widespread use of new bearings makes the turbine devices an optimized choice for renewable energy generation.
Dalian Metallurgical Bearing Group DYZV
Defontaine S.A. / Rollix
Tianma Bearing Group TMB
Wind turbine bearings
On-shore turbine bearings
Off shore turbine bearings
Renewable energy generation
Wear resistant bearings