Removing Leaks from Pitch-Bearing Seals

Challenge

To prevent pitch-bearing seals from leaking grease and damaging the bearings, prevent water ingress and avoiding cleanup and maintenance costs.

Solution

A static seal was converted to an improved rotary seal design, with upgraded material and design features.

Result

Six-month testing proved the seal to be virtually flawless. The retrofit saved the turbine OEM $15 million per year.

Dave Hartwell

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