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Advance HCA301-5° Marine Gearbox

The speed input range of the Advance HCA301-5º marine gearbox is 1000-2300 RPM, with engine input power from 493.5 kW to 525 kW. the center distance is 265 mm, the reduction ratio range is 1.50-2.95 the transmission capacity range is 0.235-0.25 kW/RPM, the rated propeller thrust is 40 KN, and the input shaft is in the train Opposite to the output shaft.

Advance HCA301-5º 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 HCA301-5º marine gearboxes provides two types of control system which are push-pull flexible shaft and electric control for customers to choose. To meet the different requirement of coupling with different engine brand and models, Advance HCA301-5º marine gearboxes available in engine flywheel sizes.

All of our Advance 300/301/302 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 HCA301-5° 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.

  • Small size, light weight and good operability. The convenience of use and maintenance is fully considered in the design.

  • With excellent machine performance, good design effectively reduce the noise, reduce the vibration.

  • 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.

  • Excellent deceleration effect and bearing propeller thrust.

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

Technical Specifications

Gearbox Model:HCA301-5°
Input Speed:1000-2300 RPM
Power:525-493.5 kW @ 2100 RPM
Center Distance:265 mm
Trans.Capacity:0.25-0.235 kW / RPM
Reduction Ratio:1.50-2.95
Rated Thrust:40 kN
Dimension:618 mm * 585 mm * 824 mm
Net Weight:370 kg
Lead Time:15-30 Working Days
Payment Terms:T/T ,L/C


Coming soon


Input Speed

Reduction Ratio

Trans. Capacity



HCQ3001000~2300 r/min1.06-2.550.250-0.23 kw/r/min630 mm * 521 mm * 680 mmMechanical/Electrical
HCA300-10°1000~2300 r/min1.52-2.950.250-0.235 kw/r/min620 mm * 585 mm * 753 mmMechanical/Electrical
HCA301-5°1000~2300 r/min1.50-2.950.250-0.235 kw/r/min618 mm * 585 mm * 824 mmMechanical/Electrical
HCA302-7°1000~2300 r/min1.52-2.950.250-0.235 kw/r/min560 mm * 585 mm * 764 mmMechanical/Electrical

Technical Specifications of Advance HCA301-5º Marine Gearbox

ModelHCA301-5ºInput Speed(r/min)1000-2300Center Distance(mm)265
Reduction Ratio(i)1.50 1.96 2.57Trans.Capacity(kW/rpm)0.25Power(kW)525 kW @ 2100 RPM
2.950.235493.5 kW @ 2100 RPM
Rated Thrust(kN)40Dimension(mm)618 * 585 * 824Net Weight(kg)370
FlywheelSAE18 16 14Bell HousingSAE0 1ControlsMechanical/Electrical
  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 HCA301-5° Light Duty & High 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 HCA301-5° Light Duty & High 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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