GKT 01

Telescopic coupling

Telescopic coupling // GKT 01
  • Telescopic coupling for transmission of drive torques on smaller ­VariVent® winding systems.
  • For use with variable axial offset between output shaft of power drive/manual drive and winding shaft.
  • Smooth and quiet length adjustment with high-performance rollers, 40 x 40 mm rectangular aluminium tube with 2 steel universal joints, plastic spacer cylinder to assure correct distance away from building.
  • Version ‘32’ with external adapter for 32 x 1.5 mm steel winding tube // Version ‘47’ with internal adapter for 50 x 1.5 mm aluminium winding tube.
  • All parts stainless, i.e. non-rusting, and developed for use in outside environments.

The quality product from the inventor!


  • For detailed information, please refer to – VariVent® winding systems.
  • Connection four corner tube to joint as sparepart available (20998.0104.35, without picture).