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center wheel

noun, Horology
the wheel driving the minute and hour hands of a timepiece.
Origin of center wheel
1880-85 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for center wheel
  • Aluminum oxide depressed-center wheel grinds and deburrs mild steel and nonferrous metals.
  • For non-quick release wheels, loosen axle nuts and center wheel, then tighten nuts fully.

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