Carbon brushes, which are a crucial component in electric motors and generators. They are sliding contacts used to transmit electrical current from a static part (stator) to a rotating part (rotor or commutator).
Key Information
Function: Their primary role is to conduct current to the rotating components of a motor or generator. In DC motors, they work with a commutator to change the direction of current in the armature winding, which causes the armature to rotate continuously in one direction.
Material: They are generally made of a block of carbon/graphite material, often combined with metal powder and a binder. Different materials are used for various applications to optimize performance and lifespan.