Marine Propulsion Services

Specialist marine propulsion support for shafting, waterjets, running gear, shaft bearings, shaft seals, and propulsion system reinstatement.

Datum RMS provides specialist marine propulsion services to support the removal, installation, alignment, servicing, and repair of critical propulsion system components. Working with vessel owners, managers, shipyards, and marine engineering teams, we help keep propulsion systems operating reliably through practical field support, precision measurement, and hands-on engineering experience.

From waterjet service and propeller shafting work to shaft bearings and shaft seals, Datum RMS supports a wide range of propulsion-related requirements during haul-out, maintenance, repair, and reinstatement. Our team brings deep marine engineering knowledge across propulsion systems, large onboard equipment, and shafting arrangements.

What We Support

Datum RMS provides practical marine propulsion support across removal, installation, servicing, and reinstatement of critical propulsion system components. Working with vessel owners, managers, shipyards, and marine engineering teams, we support a wide range of propulsion-related requirements during haul-out, repair, and maintenance periods.

Waterjet Removal & Service

Support for waterjet removal, servicing, and associated propulsion system work.

Hull Laser Measurement

Geometric laser measurement of hull shape during haul-out to support accurate blocking.

Propeller Removal

Removal of conventional and hydraulically mounted propellers, couplings, and companion flanges.

Propeller Shafting

Removal and installation of propeller shafting as part of propulsion maintenance and repair work.

Running Gear Components

Removal and installation of running gear components across propulsion systems.

Support Bearings

Service support for pedestal-type support bearings within marine shafting arrangements.

Shaft Brake Assemblies

Support for shaft brake assembly removal, installation, and associated propulsion works.

Machine Shop Support

Custom machine shop support for specialist propulsion-related components and items.

Specialist Support

Marine Shaft Bearing Services

Datum RMS specialises in shaft bearings for marine propulsion systems, supporting both replacement and new specification requirements. Our team can supply OEM shaft bearings, assist with bearing type selection, and support the wider engineering requirements needed to ensure correct installation and performance.

• Supplying all types of OEM shaft bearings
• Specifying new bearing types on request
• Cooling requirement calculations
• Precision bearing alignment
• Securing bearings with chocking compounds where required

Service & Availability

Marine Shaft Seal Services

Datum RMS provides shaft seal services for marine propulsion systems, supporting assembly, servicing, and ongoing support across major manufacturers. Common seal types can be held in stock, with wider availability possible on short lead times.

• Shaft seal assembly
• Shaft seal service and maintenance support
• Support across major shaft seal manufacturers
• Common seal types kept in stock
• Additional options available on short lead time

Marine Engineering Experience

Why Work With Datum RMS

Datum RMS brings extensive marine engineering experience to propulsion work. Our team has practical knowledge across propulsion systems, waterjets, shafting, large onboard equipment, and vessel build and repair environments.

System-Wide Understanding

Experience across shafting, bearings, seals, gears, couplings, and associated marine systems.

Practical Marine Experience

Support shaped by real shipyard, haul-out, installation, and reinstatement requirements.

Reliable Technical Support

A practical approach to removal, replacement, alignment, and reassembly of propulsion components.

Distributor Support

Thordon Shaft Seal Support

Datum RMS is a Thordon distributor, offering the TG100 shaft seal for water-lubricated propeller shafts. This mechanical seal provides built-in “get you home” redundancy and is suited to vessels operating in clean water or dirty, abrasive-laden conditions.

This makes the TG100 a strong option where dependable shaft seal performance is needed in demanding marine service conditions.

Workboats
Dredgers
Tugs
Patrol craft
Yachts
Coastal vessels

Propulsion Project Support

Supporting Reliability Through Haul-Out, Repair and Reinstallation

Why Marine Propulsion Support Matters

Propulsion systems rely on the correct condition, fit, and performance of multiple connected components. Problems with shafting, bearings, seals, running gear, or installation accuracy can affect efficiency, increase wear, and lead to avoidable downtime.

• Reduced propulsion efficiency
• Premature wear of bearings and seals
• Increased risk of component damage
• More complex repair scope
• Avoidable downtime during operation
• Higher maintenance and reinstatement cost

Supporting Haul-Out, Repair and Reinstallation

Datum RMS supports propulsion work across planned haul-outs, repair periods, replacement projects, and installation support. Whether the requirement is a single component or a broader propulsion package, we provide practical service built around marine project realities.

• Planned haul-out periods
• Removal and reinstatement work
• Propulsion repairs
• Replacement of shaft bearings and seals
• Waterjet service
• Shipyard support during installation and reassembly

Talk to Datum RMS

Need Support With a Marine Propulsion Project?

Whether you need support with waterjets, propeller shafting, shaft bearings, shaft seals, or wider marine propulsion services, Datum RMS provides practical engineering support to help plan, remove, replace, reinstall, and maintain critical propulsion components with confidence.

Support for vessel owners, managers, shipyards, and marine engineering teams.