Chongqing GWL4957 marine gearbox ratio range is 2-6 with power factor 2.1470-6.5102kW/rpm. Input and output shafts are coaxial, two-stage reduction, with a clutch, can only be clutched and not reversed.
GWL4957 Scope of Supply
- Oil cooler
- Gear oil pump
- Filter
- Dipstick
- Pressure gauge
- Controller
- Check valve
- Input shaft flange
- Output shaft flange
Technical Data of Chongqing Gearbox GWL4957
| Input Speed (rpm) | Ratio | Power Factor (kW/rpm) |
| 400-600 | 2.0000 | 6.5102 |
| 400-750 | 2.5000 | 5.2082 |
| 400-900 | 2.9333 | 4.4388 |
| 400-1050 | 3.4286 | 3.7976 |
| 400-1200 | 4.0000 | 3.2551 |
| 400-1200 | 4.4324 | 2.9376 |
| 400-1200 | 4.9143 | 2.6495 |
| 400-1200 | 5.4545 | 2.3871 |
| 400-1200 | 6.0645 | 2.1470 |
- Input and output shafts are coaxial
- Thrust: 320kN
- Lubricating oil pressure: 0.04-0.4Mpa
- Lubricating oil temperature: ≤ 80℃
- Oil grade: CD30, CD40 or diesel engine oil
- Cooling water pressure: ≤0.2 Mpa
- Cooling water inlet temperature: ≤32 ℃
- Engine speed at reversing time: ≤60%ne (ne — Engine rated speed)
- Reversing time: ≤ 15s
- Net weight: 7000kg
Optional Configuration
- Mechanical control / Electrical control / Pneumatic control
- Highly flexible coupling
- Stand-by pump
- Classification society
- GWL4957 Gearbox Datasheet
- Chongqing Gearbox Catalogue
- Service Manual
- PDF Drawing
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.