The Supreme stern tube seals and Supreme thruster seals are produced with high-quality housing parts, lip seals and liners. Our Modular, Made-to-Measure philosophy enables us to deliver customer-specific designs combined with short quotation, lead and delivery times. In addition, the Supreme seals are suitable for both new-build and retrofit applications.


The list of advanced options like an HML coating for extra durable liners and environmentally acceptable lubricant (EAL) compatible lip seals allows you to customise your seal design to your preferences.


Our Supreme seals are suitable for the following applications:


  • Stern tubes (FPP, CPP)
  • Thrusters (azimuth, azipull, tunnel and pods)
  • Bulkheads
  • Fin stabilisers
  • Rudder stock
  • Gearbox


For a complete overview of all Supreme seals, customised options and additional products, download our Maritime Seals brochure!

Download maritime brochure

Discover a complete overview of all Supreme seals, customised options and additional products.



Supreme seals

Our Supreme range is a reliable stern tube sealing solution. Consisting of bronze housing parts (or cast iron to fit inland vessels), and also available in a split version, the aft seal prevents water ingress and oil leakage to the outside environment. The forward seal consists of cast iron housing parts and contains two oil-repellent lip seals, preventing oil leakage to your engine room. Both seals are finished with a stainless steel liner. Complemented with a broad range of options, the Supreme seal can be fully customised to your specific sealing need to guarantee you Peace of Mind.



  • Highly corrosion resistant
  • Modular, Made-to-Measure
  • Effective separation of water and lubricants
  • Optimised Total Cost of Ownership
  • Available with a broad range of options
  • Suitable for both new-build and retrofit applications
  • Bonding in situ possible


Due to the modular design, you can customise your seal using a broad range of options.

Type and design approval

The Supreme seals have been approved by globally recognised classification societies such as the American Bureau of Shipping (ABS), Bureau Veritas (BV), DNV GL and the Indian Register of Shipping. Look at the overview of all available type and design certificates.


“The Supreme seals is one of the best shaft seals available in the market. We have a good cooperation with Lagersmit. The team is easy to work with and you always get a fast response when parts and technical support are needed.”

CAT Propulsion


Supreme® TS4

Targeted design for azimuth and azipull thrusters that have to deal with heavy-duty operations.

More information

Supreme® Standard

Basic design for stern tube and thruster seals of seagoing vessels.

More information

Supreme Ventus®

Self-regulating sealing solution that guarantees zero emissions of oil for seagoing vessels.

More information

Supreme® Inland Vessel

Targeted design for stern tubes of inland vessels.

More information

Supreme Athmos®

Targeted design for ships with a shallow draught up to 5 metres such as larger yachts, cruise ships and ferries.

More information

Supreme® WLC

Especially developed for open water-lubricated stern tube systems.

More information


Minerva Marine

Retrofit to Supreme SeaGuard Ventus®

View reference

Venturi Fleet Management

Retrofit entire fleet to Supreme Ventus®

View reference


Do you want more information or advice about our Supreme seals? Contact one of our experts!

Team Member

Jan Willem Bongers

Sales Manager

Team Member

Steven Xu

Sales Manager Asia

Team Member

Bart van Lee

Account Manager

Team Member

Nicolette van Houwelingen

Customer Support

General phone number