Marine Propeller Thrust Shaft for Ship

Marine Propeller Thrust Shaft for Ship

The intermediate shaft is used for transmitting torque, it's the bridge between the propeller shaft and the gearbox. The torque is transmitted as following:

Main engine------Gearbox------Bearing------Intermediate shaft------Bearing------Propeller shaft------Propeller------Rudder

The intermediate shaft is machine finished by forge piece

Specifications for the Intermediate Shaft:

Material: forged steel, stainless steel 304, stainless steel 316

Processing methods: forged and lathe machining

Dimensions: designed according to the vessel

Certificate: CCS, ABD, BV, DNV, NK, KR, LR, GL, RINA, etc.

Material List for Intermediate Shaft

SUS 316:

Chemical Component (%)
C	Si	Mn	P	S	Cr	Ni	Mo	Cu	N	Other
≤0.07	≤1.00	≤2.00	≤0.35	≤0.30	16.00-18.00	10.00-14.00	2.00-3.00	/	/	/

Mechanical Properties
Tensile Test			Hardness Test
o b (MPa)	o 0.2 (MPa)	o 5(%)	HB	HRB	HV
≥520	≥205	≥40	≤187	≤90	≤200

SUS 304:

Chemical Component (%)
C	Si	Mn	P	S	Cr	Ni
≤0.07	≤1.00	≤2.00	≤0.35	≤0.30	17.00-19.00	8.00-11.00

Mechanical Properties
Tensile Test			Hardness Test
o b (MPa)	o s (MPa)	o 5(%)	HB	HRB	HV
≥520	≥205	≥40	≤187	≤90	≤200

Forged Steel:

Chemical Component(%)
C	Si	Mn	Mo	Cr	S	P	Ni	Cu	Other
0.32-0.40	0.17-0.37	0.50-0.80	/	≤0.25	≤0.035	≤0.035	≤0.25	≤0.25	/

Mechanical Properties at Nomal Temperature
Nominal Thickness (mm)	Heat Treatment Condition	Tempering Temperature (°C)	o b (MPa)	o s (MPa)	o 5(%)	Akv (J)	HB
≤100	Normalizing	/	510-670	≥265	≥18	≥20	136-200
100-300	Normalizing and Tempering	≥590	490-640	≥255	≥18	≥20	130-190

The Machining of the Marine Intermediate Shaft, Ship Shaft

Finished Product Area of the Shaft

I. Packaging Methord:

1. Wooden Csse;

2. Iron Frame;

For different shipping methods and destinations, we will suggest different packaging. If you have any requirement for the packaging, please let me know during enquiry.

II. Shipping:

We offer our clients one-stop service. The shipping tool can be by sea, by air or by train. It depends on the destination of our products. And we will suggest you the min. cost and min. damage of the products.

Product Range: Marine Equipemnet, Offshore Equipment & Dock Equipment, etc.

Customer Range: Shipyards , Shipowners, Ship Managers, Engineering Companies, Constructors, Trading Companies, Wholesalers, etc.

Design Ability: We have a very experienced, creative, and cooperative team, which can design the whole propulsion system according to different vessels and requirements.

Material Preparation: our purchasing dept. will choose the material from many aspects, such as cost, quality, machining, environment protection, etc.

Machining & Test: We have advanced processing equipment with responsible crews. Our factory also have strict quality control process and test skills.

After-sale Service: You will get the after-sale service all over the world. Convenient, Fast, High Efficiency, World-wide, etc.

Best service will be enjoyed by cooperating with us.

And different certificates will be availbale, such as CCS, ABS, BV, DNV, NK, KR, LR, GL, RINA, etc.

Besides the intermediate shaft, we can also design and manufacture the propeller shaft (stern shaft), bearings, stern tube, sealings, propellers, thrusters, etc.