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Advance 300 Heavy Duty Marine Gearbox 4.47:1 Reduction
Advance 300 Heavy Duty Marine Gearbox ADV300-447 delivers a 4.47:1 reduction torque and functions as a heavy-duty hydraulic gear unit for commercial trawler and workboat propulsion.
- Range Data: Absolute 4.47:1 Reduction Ratio.
- High 737HP Precision Span: 550kW Power Capacity.
- Compliance: CCS ZC Approved Standards.
- Capacity: Hydraulic Multi-disc Records.
- Connection: SAE 1 Housing Position.
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Description
Advance 300 4.47:1 Gearbox
Engineered for high-torque propulsion, the Advance 300 stands as the definitive mechanical solution for vessel owners requiring a precision physical bridge to drivetrain safety. As a premier Advance marine gearbox, this unit utilizes precision helical gearing to deliver superior hydrodynamic energy recovery through efficient power transmission. The hardware architecture focuses on technical precision, ensuring this Advance power system maintains a 4.47:1 reduction ratio for optimized propeller thrust in commercial applications.
Technology-driven mechanical performance provides total protection through a hydraulic clutch engagement system designed for smooth shifting under heavy loads. This Advance marine transmission features a rugged cast iron housing to mitigate vibration and thermal stress during continuous offshore operations. Reliability is reinforced by the high-strength alloy internal components and integrated oil cooling circuit. This unit is the premier choice for mariners prioritizing professional maritime power and drivetrain integrity.
Key Technical Specifications
- 4.47:1 precise reduction gear ratio.
- Advance 300 series gearbox architecture.
- Hydraulic clutch for smooth engagement.
- Rugged cast iron vibration-damping housing.
- Integrated transmission oil cooler ports.
- High torque transfer efficiency rating.
- Designed for commercial marine propulsion.
Advance 300 Heavy Duty Marine Transmission - 4.47:1 Ratio
| Brand | Advance |
| Model / SKU | ADV300-447 |
| Country of Origin | China |
| US Support / Warranty | 1-Year Limited Warranty |
| Reduction Ratio | 4.47:1 |
| Transmission Capacity | 0.31 HP / RPM (0.23 kW / RPM) |
| Max Input Power | 737 HP (550 kW) @ 2400 RPM |
| Max Input Speed | 2400 RPM |
| Bell Housing Standard | SAE 0 / SAE 1 |
| Clutch Type | Hydraulic Multi-disc |
| Max Propeller Thrust | 11,240 LBF (50,000 N) |
| Center Distance | 10.63" (270 mm) |
| Oil Capacity | 4.22 Gallons (16 Liters) |
| Dry Weight | 1,433 lbs (650 kg) |
| Dimensions (LxWxH) | 31.5" x 28.5" x 38.0" |
| Classification / Certs | CCS / ZC Approved |
| Primary Application | Commercial Trawlers & Workboats |
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