Carbon Brushes, For DC / AC Motors

The primary function of a Carbon Brush is to deliver or collect current from a rotating part of an electric Machine. The brushes should maintain a close contact with rotating part, (i.e. Commutator or slipring) in order to ensure sparkles operation without wearing itself too quickly. There are various types of Carbon Brushes in different types of Grades like Hard Carbon (HC), Carbon Graphite (CG), Metal Graphite (MG), Silver Graphite (SG), Electro Graphite (EG), Natural Graphite (NG), Resin Bonded (RB) and Size which are used in electrial D.C. Motors, Slip Rings Motors Power Generators, Welding Generators etc.