Servo motors

Spring-applied brakes in servo motors INTORQ BFK417

Servo drives require holding brakes that have short operating times and very little torsional backlash. The temperature-resistant friction linings of the brakes are also ideally suited to handle emergency stops from high speeds. This makes the low-cost BFK417 a viable alternative to permanent magnet brakes, and not just from a technical point of view.


  • Braking torque: 1,5-100Nm
  • Little torsional backlash
  • Temperature-resistant
  • Low moment of inertia compared to permanent magnet brakes
  • Simple installation thanks to threaded holes in stator
  • Preset working air gap
  • Large shaft diameters possible

Application area

Servo motors