All Details about Carbon Brushes

A carbon brush has the ability to passes the current from one part to another part within the machine. to passes the electric current it uses rotating shaft and steady wires. Other applications comprise electric motors, alternators and electric generators. The carbon brushes JCB Carbon brushes is best suited for electric motor.

In certain types of motors, the rotor must be connected to complete the circuit for the motor to function. For this reason a copper or brass commutator is connected to the shaft and copper wire with spring are joined to the rings for the conduction of electricity. This type of carbon brushes give low commutation as they go from one segment of commutator to another segment. The problem was solved with the development of ‘high resistance brushes’. Though it had the resistance of the order of tens of milliohms, but still they were high enough to be able to provide a gradual shift of current from one commutator segment to the next. The term brush remains in use. With the wearing of brushes they can be changed.

How does the brushes work?

An Einhell carbon brush is made from carbon which is conductive in nature with a piece of copper wire wound around it. The carbon brush is pushed by a spring which allows the brush to stay in contact with the slip rings continuously which depends on the type of motor it is being used for. The electricity supply is given through the copper wire of the brush which allows the transmission of power to the rotating coil which depends on the type of motor.

How are Mixer carbon brushes Maintained?

The first thing to look at is the stability of the brush. The clearance is checked between its holder and its brush to make sure it is stable and proper to slide.To make sure the brush holder is correctly adjusted and at a proper angle, it is essential that the distance of the brush holder to the slip ring is checked.

There are five types of carbon brushes

DEWALT Carbon brushes

In this type of brushes amorphous coke is the most vital raw material which is bonded with resin, further at a temperature of nearly 1200oC these raw materials are constrained and kilned.

2. Carbon-graphite brushes

It has better polishing properties and the capacity to carry electrical charge is lower. Even the characteristic of the brush is outstanding abilities of commutating which is a result of their large contact drop.

3. Resin-bonded brushes

The graphite of it is contains the raw material which is bonded with resin which is further pressed and heated in special process. Large contact drop and huge internal resistance is the main advantage in it.

4. Electrographite brushes

Here the raw material that is coke and petroleum is treated similar to the processes which are described under 1 to 3, then they are heated further at the temperature 2500OC. the temperature changes the carbon substance to a form of graphite which is crystalline in nature. This type of brushes are called electrographite.

5. Metal graphite brushes

Graphite mixtures are processed to form a powdery metal basis which is used as a raw material. Electrolytic copper is the most commonly used metal but some appliances also use other metal powder like tin, silver, lead. This type of brushes shows qualities of both graphite brushes and metal brushes. It is based on the proportion of graphite and metal.

At the end, to run an electric machine properly, one must need best carbon brushes. Installation of carbon brushes are too easy. To know more details about the brush can visit