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Engineering POLY-NORM®
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0 - 67,000 Nm

POLY-NORM® AR torsionally flexible, fail-safe shaft coupling

Compact and low-priced standard version

The torsionally flexible, fail-safe shaft coupling POLY-NORM AR is a compact two-part shaft coupling for torsional vibration-damping power transmission.

The hubs made of cast iron identical in design make the standard version POLY-NORM AR specifically low-priced.
For mounting the shaft coupling the hubs are simply pushed onto the shafts and fastened axially by means of setscrews.

Applications of our torsionally flexible, fail-safe shaft coupling:
The POLY-NORM AR shaft coupling is used in almost all fields of general engineering, here mainly in the pump industry (pump coupling)."

  • Two-part shaft coupling (pump coupling) for torsional vibration-damping power transmission
  • Low-priced standard version
  • Axial plug-in, easy assembly
  • Maintenance-free
  • Compact, short shaft distance dimension
  • Applications: general engineering
  • Axial fastening of hub by setscrew
  • Complying with ATEX (acc. to EU directive 2014/34/EU)
  • Customized corrosion protection on request
  • Vibration-damping
  • Axial, radial, angular compensation
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POLY-NORM® shaft couplings are characterized by a compact design. The torque is transmitted via elastomers between the cams also serving to offset displacements and dampen shocks and torsional vibrations.

Applications of our torsionally flexible, fail-safe shaft couplings:
POLY-NORM shaft couplings are used in almost all fields of mechanical engineering, here mainly in the pump industry (pump coupling).

Overview of our fail-safe shaft couplings:

Operation of fail-safe shaft coupling:
The POLY-NORM shaft coupling consists of two hubs half the cams of which are each inserted in the tailor-made free spaces of the other hub.

This compact design of the shaft coupling allows to connect the shafts with a particularly short shaft distance dimension. The elastomer positioned between the cams transmits the torques while compensating for any kind of displacement.

Variation of components of fail-safe shaft coupling:
High adaptability with low variance through an optimally differentiated construction kit system: The elements within one size of POLY-NORM® shaft coupling can easily be combined with each other. This allows to realize various shaft distances with the same basic component.

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