The System
- A. – Soft engine mounts isolate engine from hull
- B. – Constant Velocity (CV) drive shaft absorbs engine vibration and eliminates need for accurate alignment.
- C. – Thrust unit on load bearing hull section reduces stress on transmission and engine mounts. Prop pushes boat, not engine.
A. Engine Mounts
Aquadrive’s proven engine mounts are softer than almost any other and should be used to take full advantage of the system. These mounts are steel hooded to prevent diesel damage and fully captive so that the engine cannot leave its frame even if the vessel is turned over.
B. CV shaft
The drive shaft of variable length includes two true plunging Constant Velocity joints that work independently at any angle. This eliminates the need for accurate engine alignment, either during initial installation or subsequent use. The rolling action of the balls within the CV joints absorb all axial and radial loads, permitting the use of very soft engine mounts as well as reducing wear in connected bearings. A range of pre-machined adapter kits allows coupling to almost any marine gearbox.
C. Thrust bearing
Aquadrive thrust bearing with rubber mounts attach to a cross brace in the hull. Massive bearings transfer the thrust directly to the hull and not the engine. In addition, the propeller shaft is much better supported, leading to smoother running and less wear on the stern seal.
Aquadrive® Advantages
WITH AQUADRIVE®
With Aquadrive, the engine can be installed in a horizontal position using soft and efficient mounts. Apart from easy installation and permanent alignment, this also leads to better space utilisation while dramatically reducing vibration and noise. Upgrading is easy and possible even in small engine compartments.
WITHOUT AQUADRIVE®
In traditional installations, the alignment of the propeller shaft to the engine has to be precise and subject to periodical maintenance. Stiff mounts transmit high levels of vibration to the hull, even when perfectly aligned.
Models
Follow a manual added link
Moduline B05 Series
Aquadrive’s small-range engine couplings, for powers between 5-235 hp (3-170 kW).
Follow a manual added link
Moduline B10 Series
Aquadrive®’s small-range engine couplings, for powers between 5-235 hp (3-170 kW).
Follow a manual added link
Moduline B20 & B30 Series
The Aquadrive Moduline B20 and B30 series is our mid-size systems for powers between 100–420 hp (73–310 kW).
Follow a manual added link
Heavy Duty Line (HDL)
Aquadrive HDL series is built to meet the high standards expected for ocean crossing and commercial crafts, suitable for engine powers between 400 to 1630 hp (300 to 1200 kW).
Follow a manual added link
Torsional damping
Aquadrive torsional rubber dampers combined with CV shafts (CVT units) are available in a full range of power applications involving remote mounted propulsion equipment.
Most installations result in a 50% or more reduction in cabin or cockpit noise and vibration. Aquadrive will also help to keep your driveline in good condition by minimising wear and tear on the transmission and cutlass bearings.
The propeller shaft is aligned to an Aquadrive thrust bearing, which absorbs the propeller thrust. A Constant Velocity (CV) shaft transmits engine power to the thrust bearing and propeller shaft. The CV shaft automatically adjusts to changes in the alignment between engine and thrust bearing and allows engine movements in every direction.
Unlike standard installations, periodic realignment will not be required. The use of softer engine mounts, which isolate engine vibration from the hull, completes the system. Aquadrive antivibration system creates the necessary conditions for a smooth running, quiet boat.
Choosing the right Aquadrive® system
Boat owner or professional, we can help you find the right system for your boat. With our wide range of models Aquadrive has systems to match boats powered from 5 hp to 2000 hp.
Choose either the boat owner or professional installer form to the right. Fill in the information and we will come back to you with a recommendation of what system to use.
Boat Owner Form
Professional Installer Form
References
History
1977
2017
40 years of Aquadrive®
2017
2018
Now
Aquadrive: Leading for over 40 years
Back in 1977 an engineer and boat owner employed by Scatra AB in Sweden had problems coupling the propeller shaft to his new engine and gearbox. By using a CV-shaft and a home-made thrust bearing, he managed to overcome the problems of difficult alignment and an offset between the gearbox and propeller shaft. Not only did he solve these problems, but he also found that he had dramatically reduced noise and vibration.
He then placed the engine on much softer rubber mounts, improving even further on the results and convincing his company that they should launch the engine coupling system as a commercial product. Aquadrive has since then been developed to be the world’s leading anti-vibration system.
Are you interested in our system? Our product experts are happy to answer any question!
Contact
GKN Driveline Service Scandinavia AB
P.O. Box 71
Alfred Nobels Allé 110
SE-146 48 Tullinge, SWEDEN
phone: +46 8 603 97 00
fax: +46 8 603 97 01
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GKN DRIVELINE SERVICE SCANDINAVIA AB
P.O. Box 71
Alfred Nobels Allé 110
SE-146 48 Tullinge, SWEDEN
T: +46 8 603 97 00
F: +46 8 603 97 01
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