Aquadrive HDL42.680 – Heavy Duty Line Anti-Vibration CV Shaft System

ID 1351264

1-2 weeks delivery time

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The Aquadrive HDL42.680 Heavy Duty Line (HDL) is a high-capacity marine anti-vibration propulsion system combining a CV driveshaft, thrust bearing assembly, and gearbox adapter flange. It isolates engine vibration and transfers propeller thrust directly to the vessel structure. Maximum torque 10,500 Nm, maximum shaft speed 1700 rpm, and maximum propeller thrust 40 kN.

Description
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Aquadrive HDL42.680 – Heavy Duty Line Anti-Vibration CV Shaft System

The Aquadrive HDL42.680 is part of the Aquadrive Heavy Duty Line (HDL), designed for high-power marine propulsion systems where superior vibration isolation and thrust handling are required. The system separates the engine from propeller forces, significantly reducing vibration transmission and protecting the gearbox from axial loads.

In this configuration, propeller thrust is transferred through a dedicated thrust bearing assembly mounted on the vessel structure rather than through the gearbox. This improves drivetrain durability and allows the engine to move freely on its flexible mounts while maintaining smooth torque transmission.

The system includes a constant velocity (CV) shaft, a heavy-duty thrust bearing, and a gearbox adapter flange. The CV shaft uses two universal joints connected by a floating shaft that accommodates axial and radial movement while maintaining constant rotational velocity.

Main Components

Constant velocity shaft (CV joint assembly)
Heavy-duty thrust bearing assembly
Gearbox adapter flange
Shaft connection sleeve

Technical Specifications

Model	HDL42.680
Series	Aquadrive Heavy Duty Line (HDL)
Maximum Static Torque	10,500 Nm / 7,750 lbft
Maximum Propeller Shaft Speed	1700 rpm
Maximum Propeller Thrust	40 kN / 9000 lbf
Minimum Driveshaft Length	430 ± 24 mm (tube shaft design)

Typical Applications

Vessel Type	Rated Power	Crankshaft Speed	Gearbox Ratio
Displacement Boat	220 kW (300 hp)	2100 rpm	3 : 1
Planing Boat	420 kW (570 hp)	2600 rpm	2 : 1

Propeller Shaft Options

The HDL 680 standard version supports the following propeller shaft diameters:

50 mm
2"
2 1/4"
60 mm
2 1/2"
65 mm
70 mm

Notes

Application ratings are based on optimal operating conditions with approximately 2° joint angle for each CV joint. If the operating angle exceeds 2°, the 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.