Features of carbon brushes

The role of the carbon brush is mainly to conduct electricity while rubbing against metal, which is not the same as when metal-to-metal friction conducts electricity; when metal-to-metal rubs and conducts electricity, the friction force may increase, and the joints may sinter together; and Carbon brushes don't, because carbon and metal are two different elements. Most of its uses are used in motors, and the shapes are various, such as square and round.

Carbon brushes are suitable for various motors, generators, and axle machines. It has good commutation performance and long service life. The carbon brush is used on the commutator or slip ring of the motor as a sliding contact body for leading and importing current. Almost all motors use carbon brushes, which are an important component of the motor. It is widely used in various AC/DC generators, synchronous motors, battery DC motors, crane motor collector rings, various types of welding machines, etc. With the development of science and technology, the types of motors and the working conditions used are more and more diverse.