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

Word History and Origins

Origin of spur gear¹

First recorded in 1815–25

Example Sentences

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

From Project Gutenberg

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 Project Gutenberg

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

From Project Gutenberg

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

From Project Gutenberg

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 Project Gutenberg