Electrical discharge in generator bearings.
Electrical discharge is common in wind turbine generator bearings.
Special Bearing Used in GE Pitch Motors
The OEM uses a 6206 with special grease, high temp seals, and high heat stabilized rings. This special bearing has also been upgraded to include ceramic balls.
Relevant Published Articles
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Wind Energy LCOE: Bearing purchase price vs. total cost of ownership (TCO)
Considering long term operational effects when purchasing parts is important to understand the total cost of ownership (TCO) vs the purchase price.
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Malloy Wind Company Profile
History of Malloy Electric and our support of the Wind market.
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Cracking Blade Bearings
What causes blade bearing cracks and where to find them before it’s too late.
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White Structure Flaking in Rolling Bearings for Wind Turbine Gearboxes
An investigation into the failure modes yielding white structure flaking and axial cracking in wind turbine gearbox rolling bearings
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Blade Bearing Cage Failure
Cage failure of blade bearings at 5 years or less.