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Discussion History

Propulsion System

Assembly

Twin diesel engines driving propellers through reduction gearboxes, shafts and thrust blocks. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Propulsion System parts and their functions

8 top-level parts · 72 parts in total · full bill of materials below
Propulsion System parts diagram: 1 marine diesel engine, 2 reduction gearbox, 3 propeller shaft, 4 propeller, 5 thrust block, 6 stern tube, 7 rudder, 8 bow thruster. 72 parts in 8 assemblies.
Propulsion System parts diagram. Numbers match the table below; each box is one top-level part or assembly with what it contains.
#PartQtyWhat it does
1 Marine Diesel Engine 2× 1,500-3,000 kW each
2 Reduction Gearbox 5 parts 2× Helical gear set in a cast housing stepping engine speed down to propeller speed.
3 Propeller Shaft 2× Forged steel shaft running aft through the stern tube to the propeller hub.
4 Propeller 2× Fixed-pitch bronze propeller, typically four or five blades.
5 Thrust Block 2× Bearing assembly transferring propeller thrust to the hull structure.
6 Stern Tube 2× Sealed bearing tube where the shaft passes through the hull, oil or water lubricated.
7 Rudder 2× Steel spade rudder turned by the steering gear to alter heading.
8 Bow Thruster 5 parts 1× Transverse tunnel thruster providing side thrust for low-speed berthing.

3D model

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Build & assembly graph

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Bill of materials for Propulsion System

8 top-level lines · 22 rows shown · 72 parts total · indented to 3 levels
# Item / sub-assembly Part no. Qty/assy Ext. qty Parts Type
1 Marine Diesel Engine car-ferry-diesel-engine 2× 2 · part
2 Reduction Gearbox 5 parts car-ferry-reduction-gearbox 2× 2 14 assembly
2.1 Gearbox Housing gearbox-housing 1× 2 · part
2.2 Helical Gear Pair gear-pair 2× 4 · part
2.3 Ball Bearing ball-bearing 6× 12 · part
2.4 Oil Seal oil-seal 4× 8 · part
2.5 Clutch Pack car-ferry-clutch-pack 1× 2 · part
3 Propeller Shaft car-ferry-propeller-shaft 2× 2 · part
4 Propeller car-ferry-propeller 2× 2 · part
5 Thrust Block car-ferry-thrust-block 2× 2 · part
6 Stern Tube car-ferry-stern-tube 2× 2 · part
7 Rudder car-ferry-rudder 2× 2 · part
8 Bow Thruster 5 parts car-ferry-bow-thruster 1× 1 32 assembly
8.1 Servo Motor 4 parts servo-motor 1× 1 24 assembly
8.1.1 Stator Assembly 3 parts + deeper › stator-assembly 1× 1 3 assembly
8.1.2 Rotor Assembly 4 parts + deeper › rotor-assembly 1× 1 19 assembly
8.1.3 Encoder encoder 1× 1 · part
8.1.4 Motor Housing motor-housing 1× 1 · part
8.2 Thruster Tunnel car-ferry-thruster-tunnel 1× 1 · part
8.3 Thruster Impeller car-ferry-thruster-impeller 1× 1 · part
8.4 Ball Bearing ball-bearing 4× 4 · part
8.5 Oil Seal oil-seal 2× 2 · part

Where the propulsion system is used

1 product across 1 domain contain it, directly or inside a sub-assembly

Used in 1 assembly

Car Ferry

Sourcing: possible vendors

Prices, MOQ, and lead times are algorithmic estimates, not quotes, and not claims about these companies. Company mappings are curated by keyword; est. price band $0.50–$100. How estimates work
VendorHQSpecialtyMOQLead time
🇨🇳Foxconn
foxconn.com ↗ 		Shenzhen, CN Electronics contract mfg 1,000 pcs 6–10 wks
🇸🇬Flex (Singapore)
flex.com ↗ 		Singapore Electronics contract mfg 1,000 pcs 6–10 wks
🇮🇳Dixon Technologies
dixoninfo.com ↗ 		Noida, IN Electronics contract mfg 1,000 pcs 6–10 wks
🇨🇳BYD Electronics
bydelectronic.com ↗ 		Shenzhen, CN Electronics contract mfg 1,000 pcs 6–10 wks
🇸🇬Venture Corp
venture.com.sg ↗ 		Singapore Electronics contract mfg 1,000 pcs 6–10 wks