Hydradrive HD-115L Constant Velocity Propeller Shaft Drive Kit with Thrust Bearing and Adapter

Hydradrive HD-115L Constant Velocity Propeller Shaft Drive Kit with Thrust Bearing and Adapter

The Hydradrive HD-115L Constant Velocity Propeller Shaft Drive Kit is designed for marine propulsion installations requiring flexible torque transmission and dedicated propeller thrust support. The system combines a homokinetic (constant velocity) drive shaft, a thrust bearing and a gearbox adapter.

The HD-115L is specified for marine engines up to approximately 90 HP, with applications on planing boats up to 135 HP. It accommodates propeller shaft diameters of 35, 40 and 45 mm.

The constant velocity drive arrangement allows torque to be transmitted between the gearbox and propeller shaft while accommodating angular displacement. The dedicated thrust bearing transfers propeller thrust to the hull through its mounting arrangement rather than through the engine mountings.

Key Features

• Constant velocity shaft: Homokinetic drive shaft for marine propulsion transmission.
• Thrust bearing: Dedicated bearing for transferring propeller thrust to the hull.
• Engine power: Up to approximately 90 HP.
• Planing boat applications: Up to 135 HP.
• Maximum propeller thrust: 12,500 N.
• Maximum shaft torque: 800 Nm.
• Maximum shaft speed: 5,000 RPM.
• CV shaft length: 170 ± 25 mm.
• Compatible shaft diameters: 35, 40 and 45 mm.
• Gearbox adapter: Included in the drive system set.

Technical Specifications

Kit Contents

• Hydradrive HD-115L constant velocity drive shaft
• Thrust bearing assembly
• Gearbox adapter

Propeller Shaft Compatibility

Constant Velocity Drive and Thrust Bearing

The HD-115L uses a constant velocity drive shaft to transmit power between the marine gearbox and propeller shaft. The flexible drive arrangement accommodates angular differences between the connected components.

The thrust bearing provides a dedicated mounting point for propeller thrust loads, directing them into the vessel's hull rather than through the engine and gearbox mounting system.

This arrangement is intended to simplify propulsion shaft alignment and reduce the transmission of vibration through the drivetrain.

Selection and Installation

Before ordering, confirm the following installation requirements:

• Engine power: Up to approximately 90 HP, or up to 135 HP for the specified planing boat application.
• Maximum shaft torque: 800 Nm.
• Maximum propeller thrust: 12,500 N.
• Propeller shaft diameter: 35, 40 or 45 mm.
• Gearbox: Manufacturer, model and reduction ratio.
• Output flange: Bolt circle diameter and centering dimensions.
• Installation length: CV shaft length of 170 ± 25 mm.

The appropriate gearbox adapter and propeller shaft connection must be selected according to the installation requirements.