Couplings and drive shafts made from diverse fiber-reinforced plastics (e.g. CENTAFLEX series K and X) have been designed, developed and produced by CENTA Anrtriebe for decades.
Numerous fiber-reinforced drive shafts with ratings up to 23,000 kW and torques up to 700 kNm have successfully been applied.
Especially within the performance range of up to 40 kNm there is demand for lightweight, reasonable, elastic drive shafts for fast ferries and fast craft of any kind.
For this range a series of lightweight, fiber-reinforced membranes, namely CENTADISC-C, which add up to especially lightweight elastic drive shafts when being combined with GFK (glass fiber) or CFK (carbon fiber) tubes was designed.
Meanwhile hundreds of CD-C shafts are successfully operating in boats and ships of all kind.
Components
• Membranes as injection moulding parts made from high grade, tough plastics. Type "F" without and Type "G" with glass fibre.
Tubes made from GFK or CFK, according to requirements. CFK-tubes are less in weight and offer a higher critical speed, thus allow to bridge even larger spans without supporting bearings.
Length according to requirements.
•Connecting flanges or hubs
•Steel, strainless steel or aluminium, connecting dimensions according to requirements.
Connections
Membranes with moulded in aluminium tube, which is bonded and/or rivetted to the tube or end fittings. Membranes arranged in pairs and linked together by screws.
very low weight
low in maintenance
Robust, torsional stiff, corrosion resistant, sound absorbing and dampening for vibrations
Any kind of displacement (axial, radial and angular) is accepted without wear within the tolerable limits
Adaptable concerning length and connecting flanges or hubs
The middle part can be removed radially without displacing the units. The load capacity and reliability under maximum misalignment and nominal torque has been proven by detailed tests with more than 10x106 load changes
Available with approval of classification societies.
In ship propulsion between engine and gear or water jet (in combination with a torsional flexible coupling) and between gear and water jet; cooling towers, water pumps.
