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Product image KTR-SI FRA Idle rotation overload system torsionally flexible POLY-NORM


5 - 3,000 Nm / Idle rotation and automatically re-engaging overload coupling

The overload coupling KTR-SI FRA with POLY-NORM is an idle rotation safety coupling combined with the torsionally flexible POLY-NORM shaft coupling. The special overload coupling provides all properties and options of a safety coupling in combination with the compact and torsionally flexible POLY-NORM.


  • max. operating temperature 80 °C
  • damping vibrations
  • electrically insulating
  • axial plug-in
  • compensating for displacements (axial, radial, angular)

Product Details