Using the Gears

What do gears do, and how do we use them?




Gears are machine components that function to transmit rotation or movement from one part to another.
Gears will usually have a number of teeth that are in contact with their other gears. Gears are useful for changing rotational speed and power by transferring the power generated by the engine to the differential.
Gears can increase or decrease the speed of rotation and can easily be used to reverse the direction of rotation.
Gears are also used to help bring down the revs of a cars engine, this in turn reduces the amount of wear on engine parts, makes for economical driving by cutting the cost of fuel used, and is good for the environment by reducing emissions. By reducing the revs of the engine it will also reduce the noise of the car giving a more comfortable drive.