Standard Configuration
- Controller
- 2-stage control valve
- Filter & Cooler
- Pressure switch
- Temperature switch
- Input flange
- Output shaft
- Mounting bracket
- CCS certificate
Key Features of Advance GWC78.88 Marine Gearbox
GWC78.88 reverse reduction gear has a primary stage, a reduction stage and a reverse stage. Input and output are coaxial and have same sense of rotation.
| Input Speed (rpm) | Ratio | Rate (kW/rpm) |
| 300-335 | 2.04 | 23.372 |
| 300-410 | 2.49 | 19.099 |
| 300-490 | 2.98 | 15.983 |
| 300-570 | 3.48 | 13.708 |
| 300-650 | 3.95 | 12.063 |
| 300-730 | 4.49 | 10.615 |
| 300-820 | 5.01 | 9.511 |
| 300-900 | 5.47 | 8.712 |
| 300-950 | 6.09 | 7.830 |
Important note:
The Advance marine gearbox GWC78.88 can not be held responsible for torsional problems arising from the drive system. We therefore recommend that a calculation and adjustment for the vibrational data of the ship’s entire drive system should be performed including the torsional compatibility of the gearbox.
– Rated propeller thrust 1000kN
– Oil grade
SD/CC30 or SAE30
SD/CC40 or SAE40 (in summer of the torrid zone)
– Max. lub. oil temperature 80℃
– Cooling water inlet temperature ≤ 32℃
– Cooling water inlet pressure ≤ 0.6Mpa
– Reversing time t ≤ 15s
– Mechanical efficiency ≥ 0.97
– Permissible angle of inclination
Longitudinal 10°
Transverse15°
– Overhual 10000h
– Pneumatical / electrical operation with manual emergency control device
– Highly flexible coupling
– Stand-by pump set
– Net weight 35000kg
– Service Manual
– Certificate
– Assembling drawing
– Outlook and installation drawing
– Part list
– List of torque vibrational data
– Diagram for clutch thermal load limited (Switching frequency)
– Maintenance Card
– Datasheet
– Service Manual
– PDF Drawing
The data is applicable to the standard GW series Advance marine gearbox version. Variations are possible on special customer requirements.