spur gear

noun

: a gear wheel with radial teeth parallel to its axis

called also spur wheel

Illustration of spur gear

Illustration of spur gear

Word History

First Known Use

1823, in the meaning defined above

Time Traveler
The first known use of spur gear was in 1823

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Cite this Entry

“Spur gear.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/spur%20gear. Accessed 1 Aug. 2026.

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