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PTFE Bronze Wear Rings

PTFE bronze wear rings are high-performance guiding elements used in hydraulic cylinders to prevent metal-to-metal contact between the piston or rod and the cylinder wall. Manufactured from PTFE filled with 40% bronze, these wear rings offer superior wear resistance, low friction, and excellent chemical compatibility, making them ideal for high-speed, high-load, and aggressive media environments.

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Description

Key Features

Made from PTFE with 40% bronze filler for enhanced mechanical strength

Excellent wear resistance and dimensional stability

Low coefficient of friction, reducing heat generation and energy loss

Chemical resistance to hydraulic oils, solvents, and many chemicals

Suitable for dry running and lubricated systems

Prevents metal-to-metal contact, extending cylinder lifespan

Easy installation and available in a wide range of sizes

Technical Specifications

Material: PTFE + 40% Bronze

Temperature Range: -60°C to +200°C

Maximum Speed: 15 m/s

Maximum Surface Pressure: 250 N/mm²

Applications: Reciprocating motion in hydraulic and pneumatic cylinders

Common Applications

Mobile hydraulics and heavy-duty equipment

Construction machinery (e.g., excavators, loaders)

Injection molding machines

Agricultural equipment

Steel and aluminum processing machinery

Presses and lifting systems

Material Comparison

Compared with other wear ring materials like phenolic resin or polyester fabric composites, PTFE bronze wear rings provide significantly lower friction and improved thermal performance, particularly in environments where traditional materials degrade more quickly.

For applications requiring higher load capacity and temperature resistance, consider our phenolic wear rings.