Maprom Engineering delivers water‑lubricated propeller shaft systems for merchant shipping, naval fleets, and luxury yachts.
We guarantee zero pollution, reduce maintenance costs, and deliver unmatched operational lifetime by integrating our proven marine bearings, stern tube seals, NCB hard-coated liners, and water quality systems.
Products and Systems
Water lubricated bearings for CPP and FPP shaft lines with low friction and strong vibration control.

A bracket, open and closed configurations engineered to match your vessel and classification.

Inboard and outboard stern tube seals designed for long life and serviceability.

Water Quality Package and controls for clean water, suitable for unmanned engine rooms.

NCB hard coated liners, MK Separator and complementary tools that extend system life.


Water-lubricated propeller shaft system solutions
Maprom provides complete water-lubricated propulsion solutions, from open and closed systems to robust A-bracket configurations. Our integrated approach ensures every component works together for maximum reliability, environmental compliance, and the lowest total cost of ownership for your vessel.
Lowest total cost of ownership
Durable, high quality, hard-coated components and clean water lubrication minimize wear and maintenance, maximizing your vessel’s uptime and profitability. Our systems reduce operational costs, by eliminating expensive oil and related consumables.
50+ years of real experience
Our ‘engineering-first’ approach means we deliver more than just parts. With expert shaft sizing, alignment, and whirling analysis, we guarantee smooth, predictable, and reliable propulsion for any vessel, from dredgers to naval frigates.
Environmentally Compliant & Reliable
Our bearings and seals are designed for 100% oil-free operation in sea, fresh, or brackish water. This eliminates the risk of pollution, ensures VGP/VIDA compliance, and provides dependable performance you can trust in any environment.
Complete Lifecycle Support
We are your partner through the entire lifecycle, providing expert support from initial design and supply to installation supervision, inspections, and retrofit advice, ensuring your system performs optimally for years to come.
How it works
Discovery and design
Share your general arrangement and duty cycle. We define system layout, CPP or FPP integration, bearing sizes and seal configuration.
Supply and supervision
Components arrive as a matched package. We support installation and commissioning for a fast, right-first-time build.
Lifecycle support
Condition checks, troubleshooting and upgrades such as Water Quality Packages or NCB liners to extend service life.

Uninterrupted operations with global 24/7 Service
At Maprom, we understand that downtime is costly. That’s why we offer comprehensive, round-the-clock global support for shipyards and vessel owners worldwide. Our dedicated service team ensures your water-lubricated shaft line remains operational, from urgent spare parts delivery to meticulously planned inspections and proactive maintenance. We provide expert troubleshooting, on-site assistance, and retrofit advice, all designed to maximize uptime, extend component life, and guarantee the long-term reliability of your propulsion system. Trust Maprom to keep your fleet moving efficiently, anywhere, anytime.
Uncompromising quality
& Certified reliability
& Certified reliability
Maprom is your trusted, insured vendor, committed to the highest standards of marine engineering. Our water-lubricated propulsion systems are meticulously engineered in strict adherence to major international classification requirements, including DNV-GL, Bureau Veritas, Lloyds and others. We provide comprehensive documentation and clear, precise installation guidance, empowering shipyards to build quickly, safely, and with absolute confidence. Our dedication to quality extends to every component, ensuring superior performance, exceptional durability, and full compliance with industry regulations, safeguarding your investment and reputation.

Ensuring unparalleled reliability through stringent quality control.
What our clients say about us
The new configuration is literally ‘plug and play’ and can be installed in one go. This saves a lot of time in the alignment and assembly of the installation.
– Ferdy
The Maprom GS seal is a high-performance seal which is suitable for a long-life of 50,000 to 70,000 running hours, making it an ideal solution for naval vessels and other ships that require maximum reliability and long service intervals.
– Maxime