Servicing Kobelco and Kemel stern tube seal systems
Service and spare parts
Stern tube seal servicing Kobelco and Kemel systems
RM Propulsion specialises in servicing Kobelco and Kemel, along with all other major stern tube seal systems—including Wärtsilä®, Simplex®, and Lagersmit®.
Not only do we respond quickly and carry out repairs with precision, but we also help you avoid costly delays by keeping your systems running smoothly. If your seal system is leaking or just due for service, then contact us. Our experienced engineers take action straightaway—after all, downtime costs money. Before anything worsens, we assess, advise, and dispatch teams or parts worldwide. You can expect clear communication, technical clarity, and fast turnaround every step of the way.
We provide high-quality compatible spare parts that are type approved by DNV—ensuring regulatory compliance and dependable performance across all major seal systems. Altogether, our service delivers confidence backed by a full one-year warranty.
Liners for Kobelco and Kemel systems
In addition, we also supply chrome steel liners for all standard systems. Our chrome steel liners are compatible with a range of Kobelco and Kemel seal systems, including:
We manufacture these liners from high-grade duplex stainless steel—commonly referred to as chrome steel liners in the marine industry. As a result, they deliver exceptional strength and corrosion resistance, even in the most demanding marine environments. In fact, this material ensures long service life and significantly reduces maintenance requirements over time. To begin with, we finish-machine the OD to standard design, providing a precise base for integration. To meet your vessel’s exact specifications, the customer then completes any additional machining. Altogether, this approach offers maximum durability, full system compatibility, and performance you can rely on.
Find out more about our liners here.
Ocean Seal® compatible seals for Kobelco® & Kemel®
Servicing Kobelco and Kemel, or other Leading Stern Tube Seal Systems.
When your vessel needs repair or overhaul, choosing the right parts is critical. That’s why our Ocean® stern tube seal spare parts are fully compatible with a wide range of Kobelco and Kemel sealing systems—offering reliable performance and a cost-effective alternative.
Kobelco Compact seal types:
- Kobelco DX stern tube seals
- Kobelco CX stern tube seals
- Kobelco C stern tube seals
- Kobelco Air seals AX
Kemel Compact seal types:
- Kemel DX stern tube seals
- Kemel CX stern tube seals
- Kemel C stern tube seals
- Kemel Air seals AX
In addition to supplying high-quality spare parts, we specialize in servicing Kobelco and Kemel systems, as well as other well-known makers such as Wärtsilä, Lagersmit, and Simplex. Our experienced service technicians are available worldwide to install Ocean Seal® parts efficiently—whether your vessel is afloat or in dry dock.
With deep technical expertise and a proven track record, we ensure every installation runs smoothly and efficiently. You benefit from reduced downtime, lower cost of ownership, and the confidence that comes with working with a team that knows your system inside and out.
To explore our full Ocean Seal® product line and compatible solutions Click here.
Looking for a reliable, certified OEM alternative? Contact RM Propulsion today to ensure your vessel’s sealing systems stay secure and compliant.
*RM Propulsion has no commercial relationship with Kemel Eagle Industry® or any other brands in their group. We are an independent company in the marine industry.
Does the propeller shaft need to be removed to replace Kemel seals?
No, removing the propeller shaft is not required to replace Kemel stern tube seals in most situations.
Using advanced bonding techniques, our service engineers can efficiently replace both the forward and aft Kemel (or Kobelco) seals without removing the shaft. We can perform this service either afloat or in dry dock, and under normal conditions, we complete the job in just three to four days.
What does this mean for you?
Reduced downtime – Your vessel stays in service longer.
Lower maintenance costs – You avoid the labor and expense of shaft removal.
Flexible scheduling – We can carry out the work while the vessel is afloat, minimizing disruption.
When shaft removal is necessary:
If your vessel requires additional work—such as replacing chrome steel liners or stern tube bearings—then removing the propeller shaft becomes essential to access and complete those components properly. In such cases, it’s best to coordinate all necessary maintenance during a scheduled dry dock.
To summarize:
For standard seal replacement, our bonding method saves you time and money.
For major overhauls, shaft removal during dry dock may be more efficient.
Let us help you choose the best approach based on your vessel’s condition and schedule.
*RM Propulsion has no commercial relationship with Kemel Eagle Industry® or any other brands in their group. We are an independent company in the marine industry.
