+31(0)85 070 6610 info@rmpropulsion.com

Complete stern tube sealing systems, Retro fit and New

RM Propulsion can provide complete stern tube sealing systems for retro fit or new buildings.

We offer lip seal systems for water and oil lubricated propeller shafts.

Class approval is available.


Oil Lubricated Stern Tube Sealing System

Complete with FKM lip sealing rings, the system has been developed to operate efficiently with EAL oils.

Suitable for new buildings or retrofit situations. Custom-fit solutions can be designed in case of limited space or off-standard situations.


– Shaft diameters: 80mm-803mm
– Seal housing material: bronze or cast iron
– Sealing ring material: FKM, or NBR
– Liner material: Duplex, or tungsten coated
– Lubrication: mineral and biodegradable oil (EAL)
– Eliminator seal: additional protection against ingress of foreign objects such as sand, fishing lines & nets


– Safeguard: 4th back-up oil sealing ring in the AFT seal
– Equalizer: Pressure equalization system
– Leakage containment AFT seal tank (included with pressure equalizer & back-up oil sealing ring)