Belt and Pulley

Belt and Pulley

There are various types of belts and pulleys. They include:

• Open belt
• Crossed belt
• V-belt
• Chain belt

Open Belt

An open belt connects two pulleys, making them run in the same direction.

Crossed Belt

A crossed belt connects two pulleys, making them run in opposite directions.

V-Belt

In a V-belt arrangement, both the pulleys and the belts are V-shaped. A V-belt runs on a V-pulley. V-belts are often made of a combination of rubbers, cords, and canvas.

Chain Belt

A chain belt usually involves gear-type pulleys that allow a metallic chain to run on metallic pulleys with teeth.

Uses of Belts and Chain Drives

Belt and chain drives serve the following purposes:

• Transmit energy from one shaft to another.
• Change the running direction of a pulley.
• Carry materials as a conveyor from one point to another.

In belt and chain drives, friction is crucial as it sustains the system. If there is insufficient friction, the belt or chain may slip off the pulley.

Relationship between Belt and Pulley

A pulley is the wheel on which a belt runs. The pulley from which power is taken is called the driving pulley or driver. The pulley to which power is transferred is called the driven pulley.