CGC28.30 NGC marine gearbox features two-stage reduction, coaxial input/output, and an ahead/astern reversing clutch, designed for reliable marine propulsion. Rated input speed is 400-1800 rpm, reduction ratio 2:1-6:1, and transmission capacity 0.290-0.865 kW/rpm. Manufactured by NGC Marine (Nanjing Accurate Marine Equipment Co., Ltd., NGC), it ensures efficient power transmission for a wide range of vessels.
CGC28.30 Scope of Supply
- Oil cooler
- Gear pump
- Filter
- Operating valve
- Two-stage control valve
- Monitoring meter
- Input flange
- Output flange
Technical Data of NGC Gearbox CGC28.30
| Input Speed (rpm) | Ratio | Transmission Capacity (kW/rpm) |
| 400-900 | 2.06 | 0.865 |
| 400-1100 | 2.51 | 0.711 |
| 400-1350 | 3.08 | 0.578 |
| 400-1570 | 3.54 | 0.504 |
| 400-1800 | 4.05 | 0.440 |
| 400-1800 | 4.54 | 0.393 |
| 400-1800 | 5.09 | 0.350 |
| 400-1800 | 5.59 | 0.319 |
| 400-1800 | 6.14 | 0.290 |
- Design & Function: Two-stage reduction with coaxial input and output shafts, same rotation direction, equipped with ahead/astern reversing clutch and reduction function.
- Shaft Arrangement: Input and output shafts are coaxial for compact installation and efficient power transmission.
- Thrust Capacity: Rated propeller thrust up to 80 kN.
- Dimensions: To be confirmed / as per drawing.
- Net Weight: Approximately 1230 kg.
Optional Configuration
- Control system options: Mechanical control, electrical control, or pneumatic control.
- Highly flexible coupling: Reduces torsional vibration and protects the drivetrain.
- Stand-by pumpset: Ensures reliable operation and system redundancy.
- Classification society compliance: Available with certification from major classification societies upon request.
- NGC CGC28.30 Marine Gearbox Technical Datasheet
- CGC28.30 NGC Gearbox Installation & Service Manual
- CGC28.30 Marine Reduction Gearbox Dimensional Drawing (PDF)
- NGC Marine Gearboxes & Propulsion Products Catalogue
Specifications subject to change without prior notice in the interest of continual product improvement. Contact our sales representative for engineering specifications, survey society approvals and classifications.