Electric Drill Motor Carbon Brush 5*8*18mm For Rotary Power Tool

Carbon brush material

Carbon brush materials mainly include graphite, fat-impregnated graphite, and metal (copper, silver) graphite. Since the main component of the carbon brush is carbon, it is easy to wear and tear, so it should be regularly maintained and replaced, and the carbon deposit should be cleaned.

Carbon brush application

Carbon brushes are widely used in many electrical motors. Applicable to all kinds of electric tool motors, generators, axle machines, AC and DC generators, synchronous motors, battery DC motors, crane motor collector rings, various types of welding machines, etc.

Carbon Brush Features

The carbon brush has good commutation performance and long service life. It has good electrical conductivity, thermal conductivity and lubricating properties, and has certain mechanical strength and reversible spark instinct.

Carbon brush parameter

Carbon brush picture

Almost all motors use carbon brushes, which are an important part of the motor. The function of the carbon brush is mainly to conduct electricity while rubbing against the metal; it is not the same as when the metal is rubbing and conducting the metal; when the metal is rubbing and conducting the metal, the friction may increase; Brushes do not; because carbon and metal are two different elements; most of its uses are used in electric motors; there are various shapes; square and round, etc.

Working principle of carbon brush:

1. The external current (excitation current) is applied to the rotating rotor (input current) through the carbon brush.

2. Introduce the static charge on the large shaft to the ground (grounded carbon brush) through the carbon brush (output current).

3. Lead the large shaft (ground) to the protective device for rotor ground protection and measure the positive and negative voltage of the rotor to ground.

4. Change the direction of the current (in the commutator motor, the brush also plays the role of commutation).

If possible, it will better if customer could send us samples. 

We can produce a wide range of carbon brush. Our carbon brush is  widely suitable for automotive industry, household appliances, hammers, planers and etc. We could customize carbon brush for our customer and directly supply our carbon brushes to more than 50 countries around the world.

About Motor component and  accessories

NIDE can supply the full range of electric motor components such as commutator, ball bearing, thermal protector, carbon brush, insulation paper, shaft, magnet, fan, motor cover,etc.

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Motor Parts Department

Email : emarketing@nide-group.com;marketing4@nide-group.com