Backlash-free and torsionally rigid steel multiple-disc clutch

The all-steel RADEX®-N coupling employs discs made of high-strength, rust-free spring steel. These allow pronounced shaft misalignments to be compensated for with low restoring forces. Due to its all-steel design, the RADEX-N® can be used with drives at temperatures of up to +280°C.

The disc shape, optimized using the finite element method (FEM), guarantees very high levels of torque transmission and torsional rigidity with maximum shaft misalignment compensation.

Highlights

  • Single and double-cardan versions
  • Maintenance- and wear-free
  • High misalignment compensation capacity
  • Rated torque up to 280,000 Nm
  • Suitable for temperature range of up to +280 °C

Structure and function

The disc packs made of high-strength, rust-free spring steel and their connection to hubs and intermediate pieces form the heart of this steel multiple-disc clutch. Special fit screws enable a combination of friction and form fit via the alternate screwing onto the hub and intermediate pieces.

Design and features

Designation of the couplingFeatures
RADEX®-N NNSingle-cardan design
Only angular and axial misalignment permissible
Highest torsional rigidity
Compact size
RADEX®-N NANA 1 / NANA 2Double-cardan design
High misalignment compensation capacity with low restoring forces
RADEX®-N NANA 3 (API 610)Double-cardan design
Intermediate pieces adapted to standard installed pump sizes
Radial mounting – no dragging of the machine required
Available in accordance with API 610
RADEX®-N NANA 4Intermediate piece according to customer specifications
Max. shaft gap up to approx. 6 m
Welded intermediate pipe for highest torsional rigidity
RADEX®-N NNWIntermediate pieces according to customer specifications
Coupling consisting of 2x NN design with intermediate shaft
For drives with relatively low speeds
RADEX®-N NNZCompact double-cardan coupling
Cannot be installed radially
With intermediate disc
Ideal for replacing steel curved-tooth couplings
RADEX®-N NENEWith reduced hub
Compact double-cardan coupling.
Intermediate piece cannot be installed radially
Intermediate piece length is variable
RADEX®-N CompositeIntermediate piece made of carbon fibre
Corrosion-resistant version for large shaft gaps

Application area / utilisation

This coupling is particularly well suited to torsionally rigid, backlash-free applications.

Due to its robustness, shaft misalignment compensation capacity and high temperature resistance, it can be used in a wide range of areas - e.g. in the field of

  • Materials handling
  • Process pumps for paper machines and printing presses
  • Packaging machines
  • Test benches
  • Presses

Further information

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