AC Motors Structure and Lifetime of Electromagnetic Brake
An electromagnetic brake motor is equipped with an electromagnetic brake used for braking a power off activated type. An example of the structure is shown below.
When voltage is applied to the exciting coil, the armature is attracted to the electromagnet in resistance to the coil spring and the brake is released, allowing the motor shaft to rotate freely.
When no voltage is applied, the armature is released and the coil spring causes the brake lining to press against the brake hub, holding the motor shaft in place.
Operation and Lifetime
A brake that can be used for braking purposes.
The lifetime for repeated braking of a load with permissible inertia is 2 million times.