The gear is the most basic part of the machine, which is used to transfer the motion, and is the wheel with various sizes of teeth on it. Gears are used to change the direction of motion, adjust its speed, torque and power.

 

of gears; There are many types such as straight, endless, helix, conical and sergeant. Depending on its purpose, one of these gear types is used in the engine. Gears alone are useless. There must be at least two gears, which makes up the simple machine. Producing a gear requires precise math, solid raw materials and specialized knowledge. Steel is generally used as raw material in gears. But it is available in gears made of materials such as plastic, aluminum and brass.