Torsionally rigid, backlash-free high performance steel multiple-disc clutch for high-speed and demanding drives

The RIGIFLEX®-HP steel multiple-disc clutch is a high-performance coupling for extremely rapidly rotating drives and high torques. The RIGIFLEX®-HP couplings are usually balanced according to the balancing methods recommended according to API 671.

Commonly used methods for balancing are:

  • Individual part balancing
  • Overall balancing to check the balancing of individual parts. When doing so, note that corrections to the balancing can only be performed on the individual parts.
  • Overall balancing with balancing correction for entire coupling
  • Other customised balancing procedures can also be performed

For the coupling design, the axial natural frequency – critical speed – is to be checked. According to API 671, the critical speed should be +/- 10% beyond 1x and 2x the operating speed of the drive.

The RIGIFLEX®-HP is usually designed with bevel bore holes for an oil press fit. Alternatively, featherkey connections, flange connections, or mechanical locking elements / clamping sets are of course also possible.

Highlights

  • Torsionally rigid and backlash-free
  • Maintenance-free
  • API 610 and 671
  • Certification / type examination for ATEX, GOST R / GOST TR, DNV GL

The RIGIFLEX®-HP is available in different designs

Designation of the couplingFeature
RIGIFLEX®-HP CCompact design, high power density
RIGIFLEX®-HP LLong design, with flange hubs, for large diameters

Features

  • Torsionally rigid, backlash-free and maintenance-free steel multiple-disc clutch
  • Rated torque up to 330,000 Nm
  • Shaft diameter of up to 380 Nm
  • Very smooth running thanks to precise balancing
  • Intermediate piece can be installed/disassembled radially
  • Application-optimised torsional rigidity
  • Coupling design in accordance with API671 shaft coupling for power transmission with rotational vibration damping

Application area / utilisation

  • Pumps
  • Turbo compressors
  • Turbines

Further information

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