Engine shaft coupling for ships VULKAN Kupplungs
RATO-S: 12.5-800 kNm

The highly-flexible RATO-S coupling is a torsionally flexible rubber coupling that compensates radial, axial and angular shaft displacements of the connected machinery. The torque is transmitted by elements loaded in shear. The different torsional stiffnesses and damping factors available provide the possibility to satisfactorily tune the torsional vibration behaviour of the drive system. The essential parts of the coupling are: the torsionally flexible part, the membrane part and the connecting parts. The torsionally flexible part consists of elements, which can be arranged in one row or more rows respectively, dependent on the coupling size and the stiffness level. The flexible elements are divided into several segments. Due to the element segments and in the case of multi-row couplings, a displaced arrangement of the segments gives a good ventilation and cooling of the elements. With certain sizes the segments have additional ventilation holes. The segmental construction also assures easy handling at installation.

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