The working principles of electromagnetic clutches and brakes are very similar.
The stator body contains the field coil, which is a copper coil cast in synthetic resin. The clutch is activated by applying a direct current to the field coil. This creates a magnetic field, which electromagnetically attracts the armature plate towards the input drive hub with its friction lining, and so allows torque to be transmitted from the input side to the output. The axially-located output drive hub separates from the input side when the current is cut off . A return spring ensures that the armature plate separates from the input hub.
Here the output drive is a single or multiple groove belt pulley which is separately supported, not on the hollow shaft of the electromagnetic clutch. The pitch diameter of the pulley can be supplied to the customers' requirements. Common groove forms are: SPA, SPB, SPZ, or Poly-V or DIN/EN. Get Started »