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

The dynamo is placed in the center of the car, beneath the floor, and through intermediate spur gear drives by a steel chain on to one axle only.

From Scientific American Supplement, No. 388, June 9, 1883 by Various

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

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

Now a spur gear, as well as a pinion, has three diameters; one measurep.

From Practical Mechanics for Boys by Zerbe, James Slough