The crankshaft ship engine is a key component that converts linear piston motion into rotational power. Essential parts include the crankshaft, pistons, connecting rods, and cylinder blocks. These components work together to drive propulsion systems in marine vessels.

Crankshaft Ship Engine Specifications:

Size: Varies (typically 1m to 10m in length, depending on engine size)

Grade: High-strength forged steel (e.g., ASTM A668, DIN 1.7225)

Viscosity: Engine oil viscosity typically SAE 30 to SAE 50 (depending on operating conditions)

Buoyancy: Not applicable (submerged components rely on sealing, not buoyancy)

Material: Forged steel (common), alloy steel (high-performance), or nodular cast iron (smaller engines)

Engine Parts Specifications:

Connecting Rods: Forged steel or aluminum alloy, length varies with stroke

Bearings: Lead bronze or babbitt metal, thickness 5-20mm

Pistons: Aluminum alloy or cast iron, diameter 100-500mm

Cylinder Liners: Cast iron or steel, thickness 10-30mm

Valves: Stainless steel or heat-resistant alloys, diameter 50-200mm

Gaskets: Multi-layer steel (MLS) or graphite, thickness 0.5-3mm