spur gear

noun

Machinery.

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

spur gear

noun

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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Word History and Origins

Origin of spur gear¹

First recorded in 1815–25

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Example Sentences

Examples have not been reviewed.

On the same central pin as c is the pinion d driving a spur gear e′′.

From

In order to bring the change gears into a more convenient position and at the same time increase the range, we have introduced two additional spur gears.

From

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

From

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

From

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

spurge spur gearing

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