Product characteristics
  • For large shaft distance dimensions without additional intermediate bearing
  • All steel parts made of stainless material
  • CFK pipe glued with flanges and radially bolted in addition
  • Spacer sealed against environmental effects
  • On demand also available with brake disc made of stainless material
  • ATEX release possible
Coupling description The RADEX®-N is a backlash-free, torsionally rigid and maintenance-free all-steel coupling. The laminae that are extremely rigid in sense of rotation are made from high-strength, stainless spring steel and enable a compensation for high displacements with low restoring forces. By using CFK pipes considerably larger shaft distance dimensions are possible compared to comparable steel pipes. The dimensioning of CFK pipes is „custom-made“ to the application and is optimally adjusted to the respective case of operation.
FEM-optimized laminae form
The steel laminae packings from stainless spring steel were developed on the basis of FEM calculations. Under consideration of the necessary possibilities of displacements of the coupling the optimal form regarding torque transmission and torsional rigidity was aimed for. The fitted form of the steel laminae at the outside diameter is the result of this optimization calculation.
Laminae packings with sdowel screws
The „heart“ of the steel laminae coupling are the laminae packings and their connection to the hubs or spacers. High-strength, special dowel screw that are alternately screwed with hubs and spacer enable a combination of frictional engagement and positive locking. Thus a high power density with simultaneous easy displacement and low restoring forces is guaranteed. Due to the special constructive design of the RADEX®-N components the laminae packings are „artificially“ prestressed. Hereby the torsional rigidity of approx. 30 % is enabled and at the same time the known problem regarding the axial vibrations of the spacer is avoided.