Long-lasting Poly Flex Marine Couplings use a precision engineered disc of heat-cured polymer to provide a highly effective shock-absorber between gearbox and propeller shaft.
The result:- The level of engine and transmission noise transmitted into the hull structure is reduced, vibration is cut down and the shock of gear changes is cushioned.
Poly Flex Couplings are manufactured to exacting standards to suit a wide range of marine applications. Correctly fitted they give extended, no-maintenance, trouble-free service. No lubrication is required.
The highly resilient polymer is unaffected by salt water, oil, diesel, petrol and most solvents. All metal parts are plated to resist corrosion.

Minimise the damage
Poly Flex Couplings play a vital role in limiting damage to engines, gearboxes, shafts and skegs in the event of a mishap like an uncharted rock or errant anchor chain or rope. If the propeller is brought to a sudden halt while the engine is at full power, the flexible coupling disc will absorb much of the shock. If the force is strong enough to damage the disc, it should be possible to remove the damaged component and bolt the flanges together enabling power to be restored in order to reach base for prompt replacement of the unit. Meanwhile engine and gearbox have been protected from what would have been much more expensive damage.

An added bonus of the Poly Flex Coupling is the electrical isolation it provides between the engine and shaft, helping to reduce electrolysis.

Poly Flex engine mounts are specifically designed to provide vibration isolation for your machinery while also providing high resistance to movement caused by the dynamic loads of the propeller thrust and lateral loads experienced in marine applications. Mounts are also designed to be directly interchangeable with those supplied with engines from the major engine manufacturers. Other models are designed to supplement these mounts to allow the best possible original installation.
Poly Flex Mounts are not only for main engine installation but are also exceptional under gensets and are suitable for all types of land based applications as well.