Advance 300 Heavy Duty Marine Gearbox 1.87:1 Reduction

Description

Match rapid-response propulsion with the Advance 300 Heavy Duty Marine Gearbox 1.87:1 Reduction. This heavy-duty marine transmission is specified for patrol boats and rapid-response craft, with a 1.87:1 reduction ratio, maximum input power of 737 HP (550 kW) at 2,400 RPM, and a maximum input speed of 2,400 RPM.

Model ADV300-187 pairs a hydraulic multi-disc clutch with a listed transmission capacity of 0.31 HP/RPM (0.23 kW/RPM). the listed product data identifies SAE 0 and SAE 1 bell housing standards, 11,240 lbf (50,000 N) maximum propeller thrust, a 10.63-inch (270 mm) center distance, and a 4.22-gallon (16-liter) oil capacity.

Key Features of Advance 300

• 1.87:1 reduction ratio provides the listed speed-reduction configuration for drivetrain matching.
• 737 HP (550 kW) maximum input power at 2,400 RPM identifies the listed engine-input rating.
• 2,400 RPM maximum input speed defines the listed operating-speed limit.
• 0.31 HP/RPM (0.23 kW/RPM) transmission capacity provides the listed capacity specification.
• Hydraulic multi-disc clutch identifies the listed clutch arrangement.
• SAE 0 and SAE 1 bell housing standards identify the listed engine-interface options.
• 11,240 lbf (50,000 N) maximum propeller thrust defines the listed thrust capacity.
• 10.63-inch (270 mm) center distance identifies the listed drivetrain geometry measurement.
• 4.22-gallon (16-liter) oil capacity provides the listed service-fill quantity.
• CCS and ZC approval are listed for this gearbox.

Fitment and Propulsion Use

The Advance ADV300-187 is specified for patrol boats and rapid-response craft. It supports a propulsion layout requiring a 1.87:1 reduction ratio, within the listed 737 HP maximum input rating at 2,400 RPM 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 that the engine uses the required SAE 0 or SAE 1 bell housing interface, then verify engine-to-gearbox alignment, propeller-shaft geometry, structural mounting, and clearance for the 31.5 x 28.5 x 38.0 inch housing. Account for the 1,433 lb dry weight and 10.63-inch center distance. the listed data lists a 4.22-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 300

Verify that Advance model ADV300-187 matches your patrol-boat or rapid-response-craft propulsion system. Confirm the 1.87:1 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 multi-disc clutch, SAE 0/SAE 1 bell housing options, 11,240 lbf (50,000 N) maximum propeller thrust, 10.63-inch center distance, 4.22-gallon oil capacity, 31.5 x 28.5 x 38.0 inch dimensions, 1,433 lb dry weight, CCS/ZC approval, and 1-year limited warranty. Confirm compatibility with your engine manufacturer’s documentation before purchase.