Intermediate Shaft
critical
IMO Required
6 models total
Connects engine flywheel to propeller shaft through engine room
5 yr
Class Survey
30 yr
Typical Lifetime
Typical Manufacturers
Wartsila
MAN
Kawasaki
3 manufacturers · 6 models
Scana
4
Scana Intermediate Shaft 200
unverified
200 mm diameter
Shaft type
intermediate shaft
Diameter (mm)
200
Material
forged steel
Application
marine shaft line
Scana Intermediate Shaft 300
unverified
300 mm diameter
Shaft type
intermediate shaft
Diameter (mm)
300
Material
forged steel
Application
marine shaft line
Scana Intermediate Shaft 400
unverified
400 mm diameter
Shaft type
intermediate shaft
Diameter (mm)
400
Material
forged steel
Application
marine shaft line
Scana Intermediate Shaft 500
unverified
500 mm diameter
Shaft type
intermediate shaft
Diameter (mm)
500
Material
forged steel
Application
marine shaft line
MAN
1
Intermediate Shaft 330mm
8000 kW
· N/A (mechanical)
Common Failures & Inspection Points
- Flange bolt loosening
- Journal surface wear
- Torsional vibration cracking
Service: Bearing clearances must be within MAN specification.
Spare Parts: MAN: Dichtungs-Elemente und Verschleißmesswerkzeuge an Bord vorhalten. Lead time: 4-8 Wochen.
Wärtsilä
1
Intermediate Shaft 380mm
12000 kW
· N/A (mechanical)
Common Failures & Inspection Points
- Coupling bolt fatigue
- Bearing wear
- Alignment shift from hull deflection
Service: Check alignment with laser during drydock; coupling bolts are critical.
Spare Parts: Wärtsilä: Dichtungs-Elemente und Verschleißmesswerkzeuge an Bord vorhalten. Lead time: 4-8 Wochen.