Brake classification - Electromagnetic brakes Video
 
Electro-mechanical disk brakes operate via electrical actuation, but transmit torque mechanically. When electricity is applied to the coil of an electromagnet, the magnetic flux attracts the armature to the face of the brake. As it does so, it squeezes the inner and outer friction disks together. The hub is normally mounted on the shaft that is rotating. The brake housing is mounted solidly to the machine frame. As the disks are squeezed, torque is transmitted from the hub into the machine frame, stopping and holding the shaft.

When electricity is removed from the brake, the armature is free to turn with the shaft. Springs keep the friction disk and armature away from each other. There is no contact between braking surfaces and minimal drag.
 
 
Advantages of  electromagnetic brakes Disadvantages of electromagnetic brakes
  • An electromagnetic brake can be customized to provide fast action, precise engagement, and smooth, backlash-free operation.
  • Lower costs. By reducing component wear and improving brake efficiency, electromagnetic braking solutions last longer and require considerably less maintenance.
  • Improved heat dissipation.
  • Automatically applied brakes in case of a power failure

 

  • While Electromechanical disc and drum brakes are highly versatile and effective in a range of applications, they won’t always be the best option.
  • The external environment where the brake is being installed is critical.
  • If there are existing hydraulic or pneumatic systems in place, it likely makes sense to consider a hydraulic brake or pneumatic brake.
  • Have to manually release in case of an power failure