Electromagnetic Brakes for Servo Motors

Servo motors are designed for modern, electronically controlled drive systems with a wide control range, high dynamics and extreme positioning accuracy. They are successfully used in factory automation, packaging machinery, robotics and electronics manufacturing.

Operating Principle

In principle, they are three-phase synchronous motors with a permanently energized rotor. The complete drive train consists of a servomotor and an electromagnetic brake, a converter with a DC link and an encoder (e.g. resolver) built into the servomotor. By using permanent magnets with a relatively high magnetic flux density, this type of motor offers decisive advantages over conventional drives, such as smaller dimensions with reduced mass, lower moment of inertia, higher torque overload capacity, higher efficiency, and greater acceleration capacity during balancing and reversing operations.

The application determines the brake

There are two electromagnetic brake principles which can be utilized in servo motors: permanent magnet brakes & spring-applied brakes. The choice between these two systems depends on the specific requirements of the application.

Designed for integration into motors
Possible A-side and B-side mounting to fixed and floating bearing
Simple and versatile installation options
Variable shaft-hub connection

Designed for integration into motors
Possible A-side and B-side mounting to fixed and floating bearing
Simple and versatile installation options
Variable shaft-hub connection

Kendrion Servo Line spring-applied brakes for integrated installation in servo motors

Torque range 0.27 Nm to 70 Nm
Sizes from 32 mm to 164 mm available
High power density due to patented air gap adjustment
Standard temperature range from -15°C to +120°C

Kendrion Servo Slim Line spring-applied brake is used in automated guided vehicles and robotics

Torque range from 0.27 Nm to 8 Nm
Sizes from 32 mm to 127 mm available
Slim and space saving design
Suitable for hollow shaft motors
Temperature range from -10°C to +100°C

Kendrion HT Line permanent magnet brake for use in industrial robots and automation

Torque range 0.1 Nm to 280 Nm
Sizes from 19.3 mm to 205 mm available
Highest power density in small installation space
Extended temperature range down to -40°C possible

Kendrion PM Line permanent magnet brake for use in industrial robots and wind power

Torque range 0.01 Nm to 240 Nm
Sizes 14 mm to 200 mm available
Residual torque-free opening
Temperature range from -5°C to +120°C

Torque range 5 Nm to 40 Nm
Sizes 83 mm to 147 mm available
Holding brake with emergency stop function
Flat, space saving design

Servo motors are designed for a wide range of applications featuring high dynamics and precision positioning. To complement such features, Kendrion provides brakes that follow the needs of a servo motor.

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Why is Kendrion the perfect partner?

The customer is the central focus of all our activities. The complete Kendrion team is committed to meet the requirements and wishes of our global customers. We place great value on partnership and open communication.