Stern Tube Seal · Shaft Line Equipment
The SKF Simplex Compact C200 is a compact stern‑tube seal for a 200 mm shaft, delivering low‑friction, water‑tight sealing in marine propulsion systems.
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| Header tank oil level check | daily to weekly, per PMS |
|---|---|
| Oil sample / condition check | every 3-6 months, or per class recommendation |
| Header tank oil renewal | annually, or per manufacturer recommendation - confirm in manual |
| Full seal lip renewal | typically at drydocking (roughly 2.5-5 years), condition dependent |
Typical intervals for this design class, not the manufacturer’s figures for your model. The manufacturer’s manual is binding.
| Lip seal running surface wear | renew on visible grooving or once leakage exceeds an acceptable drip rate - confirm the exact figure against the maker's own limits |
|---|---|
| Shaft liner diametral wear | assess against class/maker wear tables for a 200 mm shaft class - no single generic figure applies |
Ranges are typical for this design class. Always confirm against the manufacturer documentation for your serial number.
Stern tube seals of this class are normally examined at each drydocking/special survey; class will expect header tank oil/water sample records and leak-rate logs as evidence, and may accept in-water survey for continuous-service arrangements where approved.
Estimated lifetime: Compact lip-type stern tube seals of this size typically serve 20,000-40,000 running hours or roughly 2.5-5 years between drydock renewals, strongly dependent on lubrication quality and shaft alignment - confirm against SKF's own service data
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