Marine Gear Box Services

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Ensuring Smooth and Reliable Power Transmission

At AstroTech Marine, we recognize that the marine gearbox plays a vital role in transferring power efficiently from the main engine to the propeller, ensuring optimal propulsion control and vessel performance. Any misalignment, wear, or malfunction in the gearbox can severely impact maneuverability, fuel efficiency, and overall operational reliability.

Our team of OEM-trained marine engineers specializes in the inspection, overhaul, alignment, and repair of marine gearboxes across all major makes and models. From diagnosing vibration and oil leakage issues to restoring gear mesh accuracy and bearing performance, we deliver precision-engineered solutions that keep your propulsion system running at peak efficiency.

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Precision Gearbox Solutions for Reliable Propulsion and Power Transmission

At AstroTech Marine Services, we understand that the marine gearbox is the heart of the propulsion drivetrain — responsible for transmitting power efficiently from the main engine to the propeller while maintaining optimal speed, direction, and torque balance. Any malfunction within the gearbox can result in significant downtime, efficiency loss, and costly repairs.

Our team of OEM-trained propulsion specialists provides complete gearbox inspection, overhaul, alignment, and repair solutions for a wide range of vessels — ensuring smooth operation, long service life, and reliable propulsion performance.

Our Marine Gearbox Services Include
  • Inspection & Condition Assessment

    Detailed examination of gears, bearings, seals, shafts, and lubrication systems to detect wear, pitting, or contamination before major failures occur.

  • Overhaul & Refurbishment

    Complete dismantling, cleaning, and replacement of damaged components using OEM-approved spares. Reassembly and testing are performed to exact tolerances.

  • Leak Repair & Seal Replacement

    Precision repair of oil leaks, replacement of seals and gaskets, and performance testing to restore optimal lubrication and pressure balance.

  • Gearbox Alignment & Installation

    Laser alignment and vibration analysis ensure accurate shaft-line geometry and smooth power transmission between the engine, gearbox, and propeller.

  • Load Testing & Commissioning

    Post-service testing to verify gear mesh accuracy, bearing temperatures, and vibration levels, ensuring full compliance with Class and manufacturer standards.

Types of Gearboxes We Service
  • Reverse Reduction Gearboxes
  • Twin Input/Twin Output Gearboxes
  • Step-up and Step-down Gear Units
  • Hydraulic and Electric Clutch Gearboxes
  • Azimuth and Thruster Drive Gear Units
We support leading global brands including Reintjes, Twin Disc, ZF, Masson, Wärtsilä, and RENK, offering both onboard and workshop-based servicing options.
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