Carbon brush is being used to transfer electrical current from a moving (usually rotating) to a stationary point within an electric circuit.
Carbon brush types include electro-graphite, pitch bonded, silver impregnated, copper impregnated and resin bonded. There are many industrial applications for these products. They include traction, earthing, aerospace and within generators.
Carbon brush is used for outstanding motor performance. The right carbon brush is important for long commutator life, maximum brush life. The correct brush grade is the key to meeting the unique operating requirements of such diverse applications as mining, transportation, aerospace and power Generation to name just a few.