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Advance GWL45.49 Marine Gearbox

The speed input range of the Advance GWL45.49 marine gearbox is 400-1600 RPM, with engine input power from 559.2 kW to 6784 kW. the reduction ratio range is 1.97-5.98 the transmission capacity range is 1.398-4.24 kW/RPM, the rated propeller thrust is 270 KN, and the input shaft is in the train Opposite to the output shaft.

Advance GWL45.49 marine gearbox is composed of transmission shaft, output coupling, input coupling, oil pressure gauge, oil Filter, control system, oil pump and other important components.

Advance GWL45.49 marine gearboxes provides two types of control system which are electric control and pneumatic control for customers to choose. To meet the different requirement of coupling with different engine brand and models, Advance GWL45.49 marine gearboxes available in engine flywheel sizes.

All of our Advance GWL series marine gearbox can provide CCS classification certificate, some of series can provide international classifications with extra costs which mainly including French BV, British LR, American ABS, Japanese NK , Norway DNV-GL, Russia RS, South Korea KR, Italy RINA and other classification societies.

Advantages Of Advance GWL45.49 Marine Gearbox

  •  Gearbox novel structure, so that its use becomes very reliable. The excellent design makes the gearbox and engine arrangement more soft and smooth.

  • It can be matched with high-speed diesel engines at home and abroad, and can be arranged in vertical, horizontal and inclination according to the needs of users.

  • The gearbox have adapted to combined design, and all running parts have been carefully designed and machined to the highest standards for less wasted fuel, smooth operation which can be fitted to most engine models.

  • 2-stage deceleration, the input and output are on the same center, and the running direction is the same, and it has the function of clutch deceleration.

  • Professional gearbox specialists and after-sales service, spare parts directly available from stock.

Technical Specifications

Gearbox Model:GWL45.49
Input Speed:400-1600 r / min
Center Distance:N/A
Trans.Capacity:4.24-1.398 kw/r/min
Reduction Ratio:1.97-5.98
Rated Thrust:270 kN
Net Weight:4600 kg
Lead Time:15-30 Working Days
Payment Terms:T/T ,L/C

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Input Speed

Reduction Ratio

Trans. Capacity

Rated Thrust

Net Weight

GWL28.30400~2000 r/min2.06-6.140.865-0.29 kw/r/min80 KN1070 kg
GWL30.32400-2000 r/min2.03-6.051.122-0.376  kw/r/min100 KN1240 kg
GWL32.35400-2000 r/min2.06-6.081.4175-0.48  kw/r/min120 KN2240 kg
GWL36.39400-1900 r/min1.97-5.971.92-0.634  kw/r/min140 KN2700 kg
GWL39.41400-1700 r/min1.98-5.992.585-0.852  kw/r/min175 KN3550 kg
GWL42.45400-1600 r/min2.00-5.933.28-1.106  kw/r/min220 KN4190 kg
GWL45.49400-1600 r/min1.97-5.984.240-1.398  kw/r/min270 KN5350 kg
GWL45.52400-1400 r/min1.97-6.044.648-1.51  kw/r/min270 KN6500 kg
GWL49.54400-1400 r/min1.94-6.005.500-1.861  kw/r/min290 KN7000 kg
GWL49.59400-1200 r/min2.03-6.016-2.1  kw/r/min290 KN8200 kg
GWL52.59400-1200 r/min1.93-5.937.438-2.426  kw/r/min300 KN ( with sliding bearing is 360 KN)8955 kg
GWL52.62400-1200 r/min2.02-5.967.756-2.631  kw/r/min300 KN ( with sliding bearing is 360 KN)9300 kg
GWL60.66400-1200 r/min2.01-6.129.913-3.261  kw/r/min450 KN ( with sliding bearing is 540 KN)13290 kg
GWL60.74400-1200 r/min1.99-6.9411.409-3.273  kw/r/min550 KN15100 kg
GWL66.75300-950 r/min2.05-6.1213.866-4.650  kw/r/min730 KN17500 kg
GWL70.76300-950 r/min2.05-6.1715.643-5.191  kw/r/min750 KN20000 kg
GWL70.82300-1150 r/min2.05-7.4917.451-4.771  kw/r/min780 KN25500 kg
GWL70.85300-950 r/min1.98-6.0519.2-6.269  kw/r/min800 KN26000 kg
GWL75.90300-950 r/min2.01-6.0222.423-7.489  kw/r/min980 KN31500 kg
GWL78.88300-950 r/min2.04-6.0923.372-7.830  kw/r/min1000 KN32000 kg
GWL80.95200-800 r/min1.98-5.9328-9.33  kw/r/min1200 KN37000 kg
GWL85.100200-1000 r/min1.98-7.0535-9.920  kw/r/min1400 KN56500 kg

Technical Specifications of Advance GWL45.49 Marine Gearbox

ModelGWL45.49Power(kW)559.2-6784Center Distance(mm)N/A
Input Speed(r/min)400-700Reduction Ratio(i)1.97Trans. Capacity(kW/rpm)4.24
400-16004.85 5.50 5.981.725 1.52 1.398
Rated Thrust(kN)270Net Weight(kg)4600ControlsElectrical/Pneumatical
  1. The Marine gearbox has the function of reverse, clutch, deceleration and the thrust of the propeller, which is equipped with the main engine to form the Marine power unit.
  2. The “transfer capacity” refers to the ratio of the engine’s rated power to the rated speed, and the reduction ratio corresponds to the transmission capacity, which should be less than the number be offered.
  3. The gearbox and engine shafting are not allowed to use rigid connection, and the bracket is recommended to be installed on the same rigid support.If the engine is mounted on the elastic support, and the gearbox is installed on the rigid support, please contact the technical department of the company to select the suitable high elastic coupling.
  4. The weight of the gearbox is approximation, for different reduction ratio the weight is different.
  5. Due to the technical improvement of the products, the products may change without notice. For any other questions please contact our sales engineer.


NameTransverse DirectionLongitudinal Direction
Marine Gearbox15°22.5°7.5°

Optional Accessories of Advance GWL45.49 Marine Gearbox

Bell Housing195CInput Coupling1. Highly Flexible Coupling
/2. Toothed Input Coupling
Direction of Input Shaft Rotation1. Anti-clockwise (Facing the Output End)VDOGearbox Pressure  Visible on Bridge
2. Clockwise (Facing the Output End)
Alarm Device1. TemperatureControl System1. Mechanical
2. Working Pressure2. Electrical
3. Lubricating Oil Pressure3. Pneumatical
Gauge Oil Temperature

Modifiable Components of Advance GWL45.49 Marine Gearbox

Special Reduction RatioAccording to Customer’s Special RequirementsReplacement of Imported Bearing1. Stronger Endurance
2. Longer Service Life
3. Higher Limit Speed
PTOPower Take OffOutput Shaft CouplingBased on Customers data to produce

Marine Gearboxs Conventional Wearing Parts

External discInternal discSealingPiston ring
GasketRubber sealingThrust plateFilter
Coil type filterPackingO ringInput shaft assembly
Transmission shaft assembyOutput shaft assemblyHydraulic control system

Note: All Above Data are Just for Reference, All Data Might Change Without Notices or Updates, Please Contact Our Sales Team to Confirm All Details Via WhatsApp or Email.

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Engine Sale Manual

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Installation Drawing

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Installation Manual

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Operation Manual

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Parts Catalogue

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Report & Certifcate

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