How Gear Ratios Work..?

You see gears in just about everything that has spinning parts. For example, car engines and transmissions contain lots of gears. If you ever open up a VCR and look inside, you will see it is full of gears. Wind-up, grandfather and pendulum clocks contain plenty of gears, especially if they have bells or chimes. You probably have a power meter on the side of your house, and if it has a see-through cover, you can see that it contains 10 or 15 gears. Gears are everywhere where there are engines and motors producing rotational motion. 
From this article you will learn about gears, gear ratios and gear trains so that you can understand what all the different gears you see are doing.

Gears are generally used for one of four different reasons:

1. To reverse the direction of rotation
2. To increase or decrease the speed of rotation
3. To move rotational motion to a different axis
4. To keep the rotation of two axis synchronized

Inside this Article

1. Introduction to How Gears Work
2. Understanding the concept of the gear ratio
3. Gear Trains
4. Other Uses for Gears 
5. To know more...click here