The VULKAN Integrated Shaft Coupling (ISC) combines in a unique way the well proven RATO DS torsional rubber coupling with a double cardanic floating shaft.
The working principle of the ISC is based on the fact that the flexible rubber element of the RATO DS coupling transmits the torque primarily by shear stresses which have a pre-dominant radial/circumferential component.


  • Significant reduction of parts in case of the bearing less design
  • Advantageous weight saving of the entire coupling including the intermediate shaft
  • Up to seven meters long Composite intermediate shaft
  • High misalignment capacity, low reaction forces
  • No noise transmission path through metallic parts in case of bearing less design
  • Extended torsional vibration tuning capabilities

Technical Data

  • Torque Range TKN [kNm]
    10 kNm - 160 kNm
  • Speed range [1/min]
    1040 RPM - 2100 RPM


Cardan shaft drives, flexibly mounted engines