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Aegir Marine (Netherlands)
Oil-Free Stern Tube System
Aegir Marine’s Oil‑Free Stern Tube System is a complete bearing and face‑seal assembly that uses seawater as the sole lubricant, eliminating oil consumption in the stern tube.
Shaft diameter 200-1,000 mm
Capacity
Seawater lubricated (zero oil to sea)
Medium
Components & Design
Component data being added…
Technical Data
type
Complete Oil-Free Stern Tube System (Bearing + Seal)
variant count approx
4
period start year
2015
drive type
Passive (seawater lubricated)
construction
Polymer bearing + face seal, complete system, no oil
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Common failures & inspection points
●Face seal wear from debris in seawater
●Polymer bearing wear in silty waters
●System air entrapment causing bearing noise
Service & Maintenance
Bearing clearance check at drydock. Face seal inspection at drydock. Seawater supply system filter check monthly. Zero oil consumption — no oil monitoring needed.
Suppliers & Spare Parts
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Maritime Network →Replacement Parts
Aegir Marine (Heerhugowaard, Netherlands). Lead time: 4-8 weeks. Complete system engineering for retrofit available.
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Equipment Model #37809
· ✓ still in production