Stern Tube Bearing · Shaft Line Equipment
Stern tube seals are essential components in marine propulsion systems, ensuring reliable operation by preventing seawater ingress and lubricant loss. The KE Stern Tube Seal, a lip seal designed for shaft diameters ranging from 150 to 800 mm, has been a trusted solution since 1975. Constructed with multi-lip rubber seals and available in chrome or ceramic shaft liners, this passive seal is effective in managing the interface between seawater and stern tube oil. Common issues include wear on the lip seal from shaft liner surface deterioration, increased oil consumption due to worn aft seals, and chipping of ceramic liners in ceramic variants. To maintain optimal performance, daily drain inspections are recommended, with seal replacement typically carried out during drydock periods. Additionally, inspecting the shaft liner when changing the seal is crucial for identifying any potential issues early. For spare parts, Kobelco Eagle Marine offers a lead time of 3-5 weeks in Asia and 6-10 weeks elsewhere, ensuring that maintenance can be scheduled efficiently. The KE Stern Tube Seal's robust design and reliable performance make it a valuable component in marine propulsion systems, supporting the longevity and efficiency of vessels.
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Drain inspection daily. Seal replacement at drydock. Shaft liner inspection at seal change.
Kobelco Eagle Marine (Kobe, Japan). Lead time: 3-5 weeks Asia, 6-10 weeks elsewhere.
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