Flexible Coupling · Shaft Line & Propulsion
The Vulkan VULASTIK L 500 is a high‑torque, highly flexible marine coupling designed to connect propulsion shafts up to 5 MW, providing torsional shock absorption and misalignment compensation. As a Flexible Coupling, it is normally installed in the propulsion shaft line between the engine, gearbox or other rotating components. In that role, its primary purpose is to transmit torque while accommodating limited misalignment and reducing torsional vibration or shock loading. Compared with a rigid flange connection, a flexible coupling uses resilient or movable elements to isolate torsional and alignment effects. For exact ratings, dimensions, settings, capacities, materials and variant-specific limits, refer to the manufacturer documentation for the exact figure.
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What our service work and the manufacturer documentation say about keeping this model running.
Inspect resilient elements, flanges, bolts, alignment marks and signs of fretting, heat or contamination. Compare coupling condition with shaft vibration and torsional behaviour after propulsion changes. Verify fastener condition and alignment after replacement. Refer to the manufacturer documentation for the exact figure for allowable deflection, alignment and replacement criteria.
Carry complete resilient-element sets, approved fasteners, locking devices and alignment or installation consumables for the installed coupling.
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