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Advance GWK28.30 Marine Gearbox

The speed input range of the Advance GWK28.30 marine gearbox is 400-1800 RPM, with engine input power from 176 kW to 792 kW. the reduction ratio range is 2.0-4.05 the transmission capacity is 0.44 kW/RPM, the rated propeller thrust is 80 KN, and the input shaft is in the train Opposite to the output shaft.

Advance GWK28.30 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 GWK28.30 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 GWK28.30 marine gearboxes available in engine flywheel sizes.

All of our Advance GWK 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 GWK28.30 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.

  • 1-stage deceleration, the input and output are vertically off-center, the running direction is opposite, 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:GWK28.30
Input Speed:400-1800 r / min
Power:176-792 kw
Center Distance:N/A
Trans.Capacity:0.44 kw/r/min
Reduction Ratio:2.0-4.05
Rated Thrust:80 kN
Net Weight:1130 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

GWK28.30400~1800 r/min2.00-4.050.44  kw/r/min80 KN1130 kg
GWK30.32A400-1800 r/min1.97-4.000.570-0.520  kw/r/min100 KN1300 kg
GWK32.35400-1800 r/min2.00-4.050.72  kw/r/min120 KN2080 kg
GWK36.39400-1800 r/min2.03-3.950.96  kw/r/min140 KN2250 kg
GWK39.41400-1600 r/min2.00-3.951.292  kw/r/min175 KN2960 kg
GWK42.45400-1600 r/min1.97-4.001.640  kw/r/min220 KN3960 kg
GWK45.49400-1400 r/min2.03-3.952.12  kw/r/min270 KN5560 kg
GWK49.54400-1200 r/min1.97-3.952.825  kw/r/min290 KN7300 kg
GWK52.59400-1200 r/min1.97-3.953.64  kw/r/min300 KN ( with sliding bearing is 360 KN)7220 kg
GWK60.66400-1200 r/min2.00-3.955.05  kw/r/min450 KN ( with sliding bearing is 540 KN)14000 kg
GWK66.75350-950 r/min1.97-3.957.20  kw/r/min730 KN19000 kg
GWK70.76300-900 r/min1.94-3.958.111  kw/r/min750 KN21500 kg

Technical Specifications of Advance GWK28.30 Marine Gearbox

ModelGWK28.30Power(kW)176-792Center Distance(mm)N/A
Input Speed(r/min)400-1800Reduction Ratio(i)2    2.56   3   3.57  4.05Trans.Capacity(kW/rpm)0.44
Rated Thrust(kN)80Net Weight(kg)1230ControlsElectrical/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 GWK28.30 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 GWK28.30 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.

The picture of Sale Manual showing the accessories and scopes of supply.

Engine Sale Manual

The picture of Installation Drawing showing the accessories and scopes of supply.

Installation Drawing

The picture of Installation Manual showing the accessories and scopes of supply.

Installation Manual

The picture of Operation Manual showing the accessories and scopes of supply.

Operation Manual

The picture of Engine Parts Catalogue showing the accessories and scopes of supply.

Parts Catalogue

The picture of Test Report and Certifcate showing the accessories and scopes of supply.

Report & Certifcate

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