Compact marine clutch

First Quarter 2021 Electrical switching & drive systems & components

Stromag has launched the newly designed KMS CC. With the ability to accommodate larger shafts despite its reduced size and weight, it provides a distinct advantage for condensing and optimising the propulsion system of almost any ship. Features include an excellent torque to weight ratio, a compact design and an ability to accommodate almost any shaftsize

The KMS CC enhances these core benefits with a new compact design that can accommodate shaft diameters 35% larger than previously. This allows for a smaller clutch size to be fitted. Additionally, smaller centre distances are achieved between shafts thanks to this compact footprint, further condensing the propulsion system. With a torque range of 11 200 to 315 000 Nm, this packaging benefit is not achieved at the cost of performance.

A new switching unit allows the KMS CC to deliver this performance despite its reduced size and weight. The switching unit effectively compensates the large centrifugal forces caused by the oil volume in the piston room, ensuring reliable engagement and disengagement. Matched with its compactness, this ensures that the KMS CC is not only suited for marine main propulsion, but also for high speed power take-off (PTO) applications.

Reduced mass means a lower moment of inertia, minimising the required torque to turn the clutch with no load and improving efficiency. The KMS CC also offers an innately high thermal capacity. Additionally, the new design ensures easier mounting or moving of the clutch outer body – a key benefit during assembly.

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