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planet gear

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planet gear

–noun Machinery.
any of the gears in an epicyclic train surrounding and engaging with the sun gear.
Also called planet wheel.


Origin:
1915–20
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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planet gear

noun
an outer gear that revolves about a central sun gear of an epicyclic train [syn: planetary gear
WordNet® 3.0, © 2006 by Princeton University.
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