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Gearing up your bearings

03.2008
 

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Muskegon, Michigan, USA...The slewing ring bearings found on cranes, wind turbines, and other smaller designs are sometimes cut with teeth to double as gears. Incorporating a gear on either the inner or outer bearing race of a slewing ring is an effective way to simplify more complicated drive systems.

Scott Hansen, Kaydon Bearings VP of engineering and advanced technology, discusses what factors—including gear static strength, resistance to pitting, gear fatigue, and gear/pinion interfaces—make for a good turntable bearing gear in this article published in Motion System Design.

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Gearing up your bearings
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slewing ring bearing, turntable bearing