Advance D300A Heavy Duty Marine Gearbox 7.63:1 Reduction

Description

Configure deep-sea propulsion around a 7.63:1 reduction with the Advance D300A Heavy Duty Marine Gearbox 7.63:1 Reduction. This heavy-duty marine transmission is specified for deep-sea trawlers and harbor tugboats, with a maximum input rating of 737 HP (550 kW) at 2,400 RPM and a maximum input speed of 2,400 RPM.

Model D300A-763 uses a hydraulic power-shift clutch and provides a listed transmission capacity of 0.31 HP/RPM (0.23 kW/RPM). Its supplied interface and service data include 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

• 7.63:1 reduction ratio identifies the listed speed-reduction configuration for the propulsion-system design.
• 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 provides the listed drivetrain geometry measurement.
• 5.28-gallon (20-liter) oil capacity identifies 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-763 is specified for deep-sea trawlers and harbor tugboats. It supports a propulsion layout requiring a 7.63:1 reduction ratio, with engine input limited to the listed 737 HP at 2,400 RPM rating and 2,400 RPM maximum input speed. Confirm fitment using the engine model, serial number, rated torque, operating RPM, reduction ratio, and manufacturer drivetrain documentation before ordering.

Installation and Service Considerations

Confirm the SAE 0 or SAE 00 bell housing interface and verify that the engine, transmission, propeller shaft, and vessel structure accommodate the listed 13.78-inch center distance, 36.0 x 32.5 x 45.0 inch dimensions, and 1,940 lb dry weight. the listed oil capacity is 5.28 gallons. 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-763 is correct for your deep-sea trawler or harbor tugboat propulsion system. Confirm the 7.63:1 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/ABS grade materials classification, and 1-year limited warranty. Confirm compatibility with your engine manufacturer’s documentation before purchase.