Craftsman

Flexible coupling GYRO FLEX

By tting a exible coupling between the gearbox and the propeller shaft, vibrations in the boat are largely eliminated. The exible coupling ensures fewer vibrations and less noise to a great extent. The average noise reduction amounts to about 5 dBa, or up to 30%. Misalignment of the propeller shaft can also be compensated, with the result that gearbox and shaft bearing are less subjected to wear and tear.

  • High elasticity and free from lateral and axial clearance are the characteristics that dampen the engine vibrations. The effect is even more noticeable at lower engine revolutions.
  • Contact noise is insulated to around 5 dBa, or up to 30%.
  • The exible coupling compensates small misalignments, especially angular misalignments, thus ensuring less wear and tear on the gearbox and the shaft bearings.
  • The axial thrust of the propeller shaft, both forward and backwards, is transmitted to the thrust bearing inside the gearbox.
  • The connection with the propeller shaft is made by a cylindrical clamping box, so that further machining of the propeller shaft is not required.
  • The coupling is electrically insulating, therefore offering good protection against electrolysis.
  • Maximum misalignment error of the propeller shaft is permitted up to 2°.

 

Article codeFor shaftDiameterFor gearboxWeightMax. axial thrustTorque (pleasure craft)Torque (commercial vessels)
AI.030.22025ø25101 mmZF and PRM2.1 kg2.1 kN280 Nm175 Nm
AI.030.22030ø30101 mmZF and PRM2.1 kg2.1 kN280 Nm175 Nm
AI.030.24030ø30132 mmZF and PRM3.9 kg4.2 kN560 Nm350 Nm
AI.030.24035ø35132 mmZF and PRM3.9 kg3560 Nm350 Nm