Aquadrive CVB42.30 – Moduline B30 Anti-Vibration CV Shaft System

ID 1351263

1-2 weeks delivery time

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The Aquadrive CVB42.30 Moduline B30 is a heavy-duty marine anti-vibration propulsion system consisting of a CV driveshaft, thrust bearing, and gearbox adapter flange. It isolates engine vibration and transfers propeller thrust to the vessel structure instead of the gearbox. Maximum torque 3000 Nm, maximum shaft speed 1700 rpm, and maximum continuous thrust 21 kN.

Description
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Aquadrive CVB42.30 – Moduline B30 Anti-Vibration CV Shaft System

The Aquadrive CVB42.30 Moduline B30 is a heavy-duty marine propulsion driveline system designed to isolate the engine from propeller forces and vibrations. By transferring propeller thrust through a dedicated thrust bearing mounted on the vessel foundation, the system protects the gearbox and significantly improves onboard comfort and drivetrain reliability.

The Aquadrive system integrates a constant velocity (CV) shaft, a thrust bearing assembly, and a gearbox adapter flange. The CV shaft contains two universal joints connected by a floating shaft that allows axial and radial movement while maintaining smooth torque transmission even when the engine moves on its mounts.

The Moduline modular design simplifies installation and engine alignment while reducing vibration transfer to the hull. This modular concept allows flexible installation and reliable performance for larger propulsion systems.

Main Components

Constant velocity shaft (CV joint assembly)
Thrust bearing with rubber suspension
Gearbox adapter flange
Shaft sleeve connection

Technical Specifications

Model	CVB42.30
System Type	Aquadrive Moduline B30
Maximum Static Torque (ØA = 65 mm)	3000 Nm / 2215 lbft
Maximum Propeller Shaft Speed	1700 rpm
Maximum Continuous Propeller Thrust	21 kN / 4725 lbf
Minimum Driveshaft Length	430 ± 24 mm (tube shaft design)

Typical Applications

Vessel Type	Rated Power	Crankshaft Speed	Gearbox Ratio
Displacement Boat	240 kW (325 hp)	2800 rpm	3 : 1
Planing Boat	310 kW (420 hp)	2600 rpm	2.5 : 1

Propeller Shaft Options

B30 standard version supports the following propeller shaft diameters:

40 mm
1 3/4"
45 mm
50 mm
2"
2 1/4"
60 mm
2 1/2"
65 mm
70 mm

Notes

Rated application examples are based on optimal operating conditions with approximately 2° joint angle for each CV joint. If the operating angle exceeds 2°, the maximum permitted power should be reduced by approximately 8–9% for each additional degree.

The maximum allowable joint angle typically ranges between 5° and 8°, depending on propeller shaft speed.