A Brush Holder is a part that holds and positions carbon brushes in a rotary motor. The brushes transfer electrical current from the motor's stationary commutator to the rotating armature. The brush holder also helps to protect the carbon brushes from wear and tear. It also helps to dissipate heat away from the motor, which helps to keep it running cool.Attributes:• Provides a positive mechanical connection between the brushes and the motor• Protects the carbon brushes from wear and tearApplications:A Brush Holder is used to provide a reliable and efficient electrical connection between the commutator and the armature of a rotary motor.