sun gear

noun Machinery.
(in an epicyclic train) the central gear around which the planet gears revolve.
Also called sun wheel.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To sun gear
Example sentences
Investigation of the first case showed a failure of the head of a screw that secures the sun gear bearing.
Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature