Propeller bushings in marine propulsion are flexible components that connect the propeller to the shaft, reducing vibrations and wear.

They absorb shocks and misalignments, ensuring smooth power transmission from the engine to the propeller.

Made from durable materials like rubber or composite, they enhance performance and longevity of the propulsion system.

Size: Typically ranges from 50 mm to 500 mm in diameter, depending on vessel size.

Grade: Commonly available in ASTM B505 C93700 (high-strength bronze) or equivalent marine-grade alloys.

Viscosity: Not directly applicable; bushings are solid components, but lubricants used may have viscosities of ISO VG 68 to 220.

Buoyancy: Neutral or negligible; material density ranges from 7.5 to 8.8 g/cm³ (bronze/steel).

Material: Bronze (e.g., manganese bronze, aluminum bronze), stainless steel, or composite polymers for corrosion resistance.

Load Capacity: Designed for radial loads up to 50 kN, axial loads up to 20 kN (varies by size).

Operating Temperature: -20°C to 120°C, depending on material and lubrication.

Corrosion Resistance: High, especially in seawater environments (bronze/stainless steel).

Installation: Press-fit or keyed, with tolerances of H7/p6 for secure shaft mounting.

Maintenance: Requires periodic lubrication (grease or oil) to reduce wear.

Propeller Bushings, Marine Propulsion may comply with maritime standards such as ISO 8845, ISO 8846, or ABS standards, depending on the manufacturer and specifications. Always verify with the supplier for exact compliance.