Gear 3


Sub-Theme: Tools, machines and processes


Gear 3

Performance objectives

Students should be able to:

  1. Describe the relationship between gear ratio and speed of rotation


Gear speed, ratio, and speed of rotation

When two gears mesh or engage together, one is called a driven gear while the other, is called a driving gear. Therefore driving gear is a gear to which power is supplied for transmission to another gear wheel.

The rate at which the gear turns per second is the gear speed. It is measured in revolution per minute. The speed of rotation of gear is indirectly proportional to the number of teeth. If the driver gear turns or rotates in a clockwise direction the driven gear turns in an anticlockwise direction and vice versa. If the driving gear has fewer teeth than the driven gear, the driven gear.... View More

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