1. A braking system whose force is supplied by an adjustable spring counteracted by a solenoid, a centrifugal thruster, and an actuator, in which the actuating force is supplied by current flowing through a solenoid or an electromagnet.
2. An emergency braking system which is automatically applied to an electric-powered apparatus when a power failure occurs.
3. An electric brake design in which the electromagnet is a small disc (spot) attached to an actuating lever is supplied by current flowing through a solenoid, or through an electromagnet which is attracted to disks on the rotating member, actuating the brake shoes.

This force is counteracted by the force of a compression spring.

4. The contact component of an electric braking system.