Construction and materials of electric brushes

Electric brushes are usually made of pure carbon with a coagulant, shaped like a block, and clamped onto a metal bracket. It is tightly attached to the shaft by the pressure of the spring, ensuring stable contact. There are various processing methods for electric brushes, which can be directly molded or cut from carbon blocks or plates. However, regardless, they must undergo precise processing, with extremely high requirements for size and surface accuracy.