Advance D300A Heavy Duty Marine Gearbox 5.52:1 Reduction

Description

Match high-displacement propulsion with the Advance D300A Heavy Duty Marine Gearbox 5.52:1 Reduction. This heavy-duty marine transmission is specified for high-displacement commercial hulls, with a 5.52:1 reduction ratio, maximum input power of 737 HP (550 kW) at 2,400 RPM, and a maximum input speed of 2,400 RPM.

Model D300A-552 uses a hydraulic power-shift clutch and provides a listed transmission capacity of 0.31 HP/RPM (0.23 kW/RPM). Its supplied drivetrain configuration includes SAE 0 and SAE 00 bell housing standards, 15,736 lbf (70,000 N) maximum propeller thrust, a 13.78-inch (350 mm) center distance, and a 5.28-gallon (20-liter) oil capacity.

Key Features of Advance D300A

• 5.52:1 reduction ratio identifies the listed speed-reduction configuration for drivetrain matching.
• 737 HP (550 kW) maximum input power at 2,400 RPM defines the listed engine-input rating.
• 2,400 RPM maximum input speed identifies the listed operating-speed limit.
• 0.31 HP/RPM (0.23 kW/RPM) transmission capacity provides the listed capacity specification.
• Hydraulic power-shift clutch identifies the listed clutch type.
• SAE 0 and SAE 00 bell housing standards define the listed engine-interface options.
• 15,736 lbf (70,000 N) maximum propeller thrust identifies the listed thrust rating.
• 13.78-inch (350 mm) center distance supports verification of installed drivetrain geometry.
• 5.28-gallon (20-liter) oil capacity provides the listed lubricant fill quantity.
• 36.0 x 32.5 x 45.0 inch dimensions and 1,940 lb dry weight support installation-space and handling planning.

Fitment and Propulsion Use

The Advance D300A-552 is specified for high-displacement commercial hulls. It supports propulsion systems requiring a 5.52:1 reduction ratio, subject to confirmation of the engine’s rated torque, 2,400 RPM maximum input speed, SAE 0 or SAE 00 bell housing interface, propeller-thrust requirement, and complete shaft arrangement. Confirm fitment using the engine model, serial number, rated torque, operating RPM, reduction ratio, and manufacturer drivetrain documentation before ordering.

Installation and Service Considerations

Verify the SAE 0 or SAE 00 bell housing interface and helps support that the vessel structure, engine alignment, and propeller-shaft geometry accommodate the 13.78-inch center distance, 36.0 x 32.5 x 45.0 inch housing, and 1,940 lb dry weight. the listed data lists a 5.28-gallon oil capacity. Follow the engine and gearbox manufacturer’s installation manuals and product instructions for alignment, lubrication, controls, cooling connections, and service procedures.

Before Ordering the Advance D300A

Verify that Advance model D300A-552 is correct for your high-displacement commercial-hull propulsion system. Confirm the 5.52:1 reduction ratio, 0.31 HP/RPM (0.23 kW/RPM) transmission capacity, 737 HP (550 kW) maximum input power at 2,400 RPM, 2,400 RPM maximum input speed, hydraulic power-shift clutch, SAE 0/SAE 00 bell housing options, 15,736 lbf (70,000 N) maximum propeller thrust, 13.78-inch center distance, 5.28-gallon oil capacity, 36.0 x 32.5 x 45.0 inch dimensions, 1,940 lb dry weight, CCS/ZC (ABS grade) classification, and 1-year limited warranty. Confirm compatibility with your engine manufacturer’s documentation before purchase.