A gear train is formed by mounting gears on a frame so that the teeth of the gears engage. Gear teeth are designed to ensure the pitch circles of engaging gears roll on each other without slipping; this provides a smooth transmission of rotation from one gear to the next.

•    A gear train is two or more gear working together by meshing their teeth and turning each other in a system to generate power and speed

•     It reduces speed and increases torque

•    Electric motors are used with the gear systems to reduce the speed and increase the torque

Types of gear train

–  Simple gear train

–  Compound gear train

–  Epicyclical gear train

–  Reverted gear train