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

See Examples For:

spur gear

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

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

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

From Illustrated Catalogue of Cotton Machinery by Company, Howard & Bullough American Machine

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

From Lectures on Popular and Scientific Subjects by John Sutherland Sinclair, Earl of Caithness

The properties of a hypocycloid were recognized by James White, an English engineer, in his geared design which employed a pivot located on the pitch circle of a spur gear revolving inside an internal gear.

From Kinematics of Mechanisms from the Time of Watt by Ferguson, Eugene S.