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spur gear

noun

, Machinery.
  1. a gear having straight teeth cut on the rim parallel to the axis of rotation.


spur gear

noun

  1. a gear having involuted teeth either straight or helically cut on a cylindrical surface. Two such gears are used to transmit power between parallel shafts
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012


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Word History and Origins

Origin of spur gear1

First recorded in 1815–25
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Example Sentences

If the cam-shaft is parallel to the crank-shaft, simple spur gear or chain connection may be used to turn it.

It will be seen that the sixteen cams are forged integrally with the shaft and that it is spur-gear driven.

The makers claim that lost motion can be taken up in a bevel gear much better than in a spur gear.

The boiler was of cast-iron, with a one-cylinder engine, spur gear and a fly-wheel on one side.

There are two spur gear changes, either of which may be used and which give a very wide range.

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spurgespur gearing