Crossing the Arctic Circle

The Norwegians specialize in maritime propulsion systems and transverse thrusters, which also include bow thrusters. These house KTR ROTEX series flexible claw couplings which deliver torques up to 35,000 Nm between the engine and rudder. Alternatively the REVOLEX KX-D series torsionally flexible pin and bush couplings that provide up to 98,000 Nm can be used. The elastomeric damping elements in the couplings play an important role contributing toward a plus in travel comfort: they decouple the vibrations of the thruster systems from the rest of the ship, so much so that one often does not even hear or feel them at all!