ZF 287401 – Pressure Spring for Marine Gearboxes Ø25 mm, 50 N/mm, 120 mm Length

ZF 287401 – Pressure Spring for Marine Gearboxes Ø25 mm, 50 N/mm, 120 mm Length

The ZF 287401 Pressure Spring is a precision-engineered compression spring designed for marine gearboxes, engines, and hydraulic systems. With a spring rate of 50 N/mm and load capacity of 500 N, it provides consistent mechanical force in high-pressure conditions. Built from corrosion-resistant stainless or alloy steel, it delivers long-lasting performance in saltwater environments. This compact spring (Ø25 mm outer diameter, 120 mm length) withstands temperatures from –40 °C to +120 °C, making it ideal for harsh marine applications. It reduces wear, improves system efficiency, and fits easily into a wide range of propulsion and mechanical assemblies.

Key Features:

• Precision pressure spring for marine gearboxes, engines, and hydraulic systems
• Outer diameter: 25 mm; Length: 120 mm; Spring rate: 50 N/mm
• Supports up to 500 N load with consistent performance
• Made from stainless or alloy steel for excellent corrosion resistance
• Engineered to operate in temperatures from –40 °C to +120 °C
• Compact design for tight integration into marine systems
• Reduces mechanical wear and helps maintain system pressure
• Protective coating for enhanced durability in saltwater environments

Specifications:

Compatibility and Application:

The ZF 287401 Pressure Spring is designed for marine gearboxes, engine assemblies, and hydraulic systems requiring high force in compact areas. Its corrosion-resistant design ensures reliable performance in saltwater environments. Compatible with a wide range of ZF systems and propulsion equipment, it helps maintain pressure consistency, reduce internal wear, and extend component life, especially under vibration and thermal stress.

Benefits:

• Maintains system pressure with 500 N load capacity
• High spring rate (50 N/mm) ensures consistent force output
• Withstands harsh marine environments and thermal cycling
• Protects components from overtravel, vibration, and impact
• Compact and easy to install into existing assemblies
• Reduces mechanical wear and improves equipment lifespan
• Ideal for both commercial and recreational marine applications