spur gear

American  

noun

Machinery.

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

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spur gear British  

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

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Etymology

Origin of spur gear

First recorded in 1815–25

Example Sentences

In electric cranes the motor is connected to the barrel, either in a similar manner by spur gear or by worm gear.

From Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 6 "Coucy-le-Château" to "Crocodile" by Various

This spur gear is fast on a shaft c, which is capable of end motion and is provided on each of its side faces with an annular toothed clutch.

From Modern Machine-Shop Practice, Volumes I and II by Rose, Joshua

The flange and web have an average thickness of 4 mm. or 5⁄32′′ and the web is drilled full of holes interposed between the spur gear mounted on the cam-shaft and the cam-shaft gear.

From Aviation Engines Design?Construction?Operation and Repair by Pag?, Victor Wilfred

The crank shaft carries a large spur gear which meshes with a pinion in the end of the armature shaft, so that the user may cause the armature to revolve rapidly.

From Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. by Miller, Kempster

The magnetos are very accessibly located on a bracket on the spur gear cover.

From Aviation Engines Design?Construction?Operation and Repair by Pag?, Victor Wilfred