A cam is an mechanical profile which is often use to trigger a switch/action at a desired interval. Cams are usually oval shaped.

Gears work in assemblies. An assembly of gears is known as a gear train. There are different types of gear trains based on the application.

Gears are important part of a transmission system. Amplifying or reducing torque, a gear assembly can do it as per the requirement.

From a tiny watch to the largest ship, gears are moving things ahead! Invention of the wheel has revolutionized the workings of the...