Complete Water-Lubricated Propeller Shaft Systems
A Single Source for Your Entire Shaft Line
Maprom designs and delivers fully integrated, water-lubricated propeller shaft systems engineered for reliability, efficiency, and environmental compliance. From the initial R&D and shaft line calculations to the final installation, we provide a complete, single-source solution for any vessel. Our expertise in marine propulsion engineering ensures every component—from the propeller shaft and bearings to the seals and liners—works together seamlessly for optimal performance and the lowest total cost of ownership.
YEARS OF EXPERIENCE
SERVICE FOR OUR CLIENTS
The Maprom Advantage
A Fully Integrated System
Open Systems
Ideal for vessels in river and coastal waters, our open systems use the surrounding water for lubrication. Combined with durable, demountable bearings and hard-coated liners, they are engineered to withstand abrasive conditions while simplifying maintenance.
A‑Bracket Systems
Perfectly suited for tugboats and vessels operating in challenging river conditions, A-bracket configurations provide essential external bearing support. This design offers additional stability and robustness for the propeller shaft line.
Closed Systems
For ultimate reliability, our closed systems use forward and aft seals to create a sealed, controlled circuit. Combined with a water quality package, this ensures the shaft is lubricated with perfectly clean water, maximizing component lifetime and performance.
Custom Designs
Our engineering team ensures optimal performance through detailed design and analysis. We perform complete shaft line calculations, whirling analysis, and FEA simulations to guarantee perfect alignment, efficiency, and reliability for your specific vessel.

Why choose us?
Lowest total cost of ownership
Our water-lubricated systems and durable components are designed to reduce wear and simplify maintenance, minimizing downtime and operational expenses over the vessel’s lifetime.
Environmentally compliant
With zero oil, there is zero risk of pollution. Our systems ensure full adherence to the strictest environmental regulations, including VGP/VIDA, making them a safe and sustainable choice.
Proven in every sector
From deep-sea commercial vessels to navy ships and super yachts, our propeller shaft systems are trusted to perform reliably in the most demanding marine conditions worldwide.
Comprehensive supply
Maprom is your single source for the entire shaft line. We deliver a complete, integrated package including shafts, bearings, seals, liners, and water quality systems, all engineered to work together perfectly.
Deeper Dive
From Inland Shipping to Polar Vessels: Solutions for Every Application
Whether you require a closed shaft system for an inland vessel or a robust, shock-proof system for a navy frigate, Maprom has the expertise to deliver. We specialize in creating custom shaft solutions for the most demanding applications, including:
Dredging Vessels: Our systems are designed to withstand the highly abrasive conditions common in dredging operations.
Naval & Polar Ships: We engineer shafting systems that meet stringent requirements for acoustic signature, shock resistance, and reliability in extreme Arctic conditions.
Tugboats & Super Yachts: We provide custom-engineered solutions that prioritize reliability, quiet operation, and performance.
Our deep understanding of open vs. closed shaft lubrication and A-bracket systems allows us to recommend and engineer the optimal configuration for your vessel’s performance and operational profile.

