Function of carbon brush

Carbon brush is a device for transmitting energy or signal between the fixed part and the rotating part of the motor, generator or other rotating machinery. It is generally made of pure carbon and solidifying agent. It is generally square in shape and stuck on the metal bracket. There is a spring inside to press it tightly on the rotating shaft.

When the motor rotates, the electric energy is transmitted to the coil through the commutator. Because its main component is carbon, it is called a carbon brush, which is easy to wear. It should be regularly maintained and replaced, and the carbon deposits should be cleaned.