Shaft line services that maximise uptime and extend vessel life

As a global leader in shaft line solutions and services, Wärtsilä helps ship owners and operators achieve reliability for the long haul. From maintenance and repairs to upgrades and technical support, our experts help improve performance, reduce operational risk and maximise the long-term value of the shaft line throughout the vessel lifecycle.

Global shaft line expertise for reliable vessel operations 24/7

Global expertise, always within reach
- 24/7 access to shaft line specialists ensures support is available where it is needed, regardless of the original equipment manufacturer.
Reduce operational downtime
- Global field service and underwater repair capabilities help minimise downtime and avoid unnecessary downtime and dry-docking.
Maximise vessel lifetime
- Maintenance, repairs and upgrades help maximise shaft line performance throughout the vessel lifecycle.
Improve safety and compliance
- Integrated shaft line solutions support safe operation and compliance with evolving marine requirements.
Trusted marine expertise
- Decades of experience in shaft line systems, bearings, and seals.

Complete shaft line service portfolio

From emergency repairs and OEM spare parts to condition-based maintenance and lifetime partnership, Wärtsilä provides comprehensive shaft line services designed to maximise reliability, efficiency and vessel availability.

Our shaft line service portfolio includes Shaft Line Repair Services for emergency repairs and performance recovery, Wärtsilä Field Services for inspection, maintenance and lifetime support during operation and planned dockings, and Underwater Services for inspections, repairs and upgrades performed without dry-docking where possible.

Wärtsilä Service employees in front of a shaft — Shaft Line Repair Services

Wherever you are, whatever you need, our global shaft line specialists are ready to get you back in operation, regardless of OEM.

service employee walking on the dock — Wärtsilä Field Services

Prevent failures before they impact operations. Global support to reduce risk, minimize downtime and avoid dry-docking.

Wärtsilä employee doing underwater services — Wärtsilä Underwater Services

Keep vessels trading by avoiding unnecessary dry dockings. Global inspection, repair and upgrades underwater.

Scrubber Overboard Pipe Repair

Discover Wärtsilä Underwater Services innovative solutions to fix and prevent corrosion caused by the acidic discharge from scrubber systems

Find out more

Frequently asked questions about shaft line solutions services

How can I prevent shaft line failures and unplanned downtime?

Preventing failures starts with understanding the condition of your shaft line system. Through inspections, condition assessments, shaft alignment verification, vibration analysis, and monitoring of bearings and seals, potential issues can be identified early and addressed before they impact vessel operations. A proactive maintenance approach helps improve reliability, reduce risk, and maximize vessel availability.

How do I know when my shaft line system needs maintenance or repair?

Early indicators such as increased vibration, seal leakage, bearing wear, rising temperatures, or changes in shaft line performance can signal developing issues. Wärtsilä's shaft line specialists help identify root causes and recommend the most effective maintenance, repair, upgrade, or overhaul strategy to support reliable long-term operation.

Can shaft line repairs be performed without dry-docking?

Many shaft line inspections, repairs, measurements, alignment activities, and in-situ machining operations can be performed while afloat, during port calls, or alongside planned maintenance. By selecting the right repair method for each situation, operators can reduce downtime, avoid unnecessary dry-docking, and maintain operational flexibility.

Can Wärtsilä support my vessel anywhere in the world?

Wärtsilä's global network of shaft line specialists provides expert support throughout the vessel lifecycle, from routine maintenance and dry-dock projects to emergency repairs and troubleshooting. Our teams are ready to help restore performance, manage risk, and keep your operations moving.

How can I reduce shaft line lifecycle costs?

The lowest lifecycle cost is achieved through planned maintenance, timely interventions, and continuous optimisation. By combining condition monitoring, shaft alignment services, bearing and seal expertise, repair planning, and lifecycle support, Wärtsilä helps operators extend component lifetime, reduce unplanned repairs, and maximize vessel availability over the long term.

How can we help?

Choose the contact option that best matches your needs. For urgent shaft line support, contact our customer support team directly. For sales enquiries and other requests, please use the contact form below.

Urgent support requests

Contact our customer support at [email protected] for assistance with solutions related to the shaft line.

To enable prompt response, please indicate the Equipment Serial Number or the name of the vessel. Equipment Serial Number is taken from the equipment nameplate and includes all letters and numbers as given on the equipment nameplate.

For all other enquiries, please use the above Contact button. We aim to respond within 1-2 business days depending on the scope of your enquiry.