Removing Leaks from Pitch-Bearing Seals

Challenge

To design an OEM retrofit pitch-bearing seal that eliminated significant grease leakage and water ingress negatively affecting warranty claims costs, O&M costs, optimal performance and environmental concerns.

Solution

A seal designed specific to the turbine conditions with upgraded material, design features and improved installation tools.

Result

Six-month testing proved the seal to be virtually flawless.
The redesign mitigated financial risk for both the wind turbine manufacturer and owner operator.

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