Brush DK4E3-G copper graphite dry

Brush for clutches and brakes dry environment. MDK4E3-G Brushes and brush holders are available for clutches and brakes dry or lubricated with oil mist or shower. Coupling slip rings are most often steel, hardened and ground. In the case of the tropical design for dry couplings, the slip rings are bronze. It is necessary to state the type of environment in the order - dry or lubricated. Brushes with a high specific pressure of 1 MPa made of bronze mesh, type K 4 inserted in a plastic holder are used for lubricated clutches and brakes. High specific pressure is required to squeeze the oil film on the ring. When the clutch or brake is dry, a low specific pressure carbon brush embedded in a plastic holder is used to supply current.