Premium DP4 Flanged Washers: Advanced PTFE & Fibre Lined Solutions for High-Performance Motion

Optimize your mechanical assemblies with our DP4 Series Flanged Washers. While standard bushings often struggle with friction-related heat and material swelling, our DP4 series is engineered with a specialized PTFE and Fibre composite. This unique material matrix is sintered onto a robust steel foundation, providing a maintenance-free, self-lubricating interface that excels in both dry-running and lubricated conditions.

Why Choose DP4 Flanged Washers?

The primary advantage of the DP4 series lies in its Enhanced Sliding Characteristics and Dimensional Stability. Unlike standard plastic or single-alloy washers, our multi-layer engineering provides:

• Superior Dry Running: Engineered with a low coefficient of friction and low wear rate, making it ideal for applications where external lubrication is difficult or prohibited.
• Transfer Film Protection: During operation, the PTFE/Fibre mixture creates a transfer film that coats and protects the mating metal surface from wear.
• Anti-Swelling Properties: Offers high chemical resistance and significantly lower water absorption compared to traditional materials, ensuring the washer maintains its shape and performance in humid environments.
• Versatile Motion Compatibility: Perfectly suited for rotary, oscillating, and reciprocating movements across a wide range of industrial loads.

Advanced Four-Layer Structural Engineering

The DP4 material stack is a masterpiece of material science, designed to dissipate heat and carry extreme loads:

1. PTFE/Fibre Mixture (mm): This lead-free surface layer provides an excellent initial transfer film, forming an oxide-type solid lubricant for smooth operation.
2. Sintered Bronze Powder (mm): This layer serves as a reservoir for the PTFE/Fibre mixture and provides maximum thermal conductivity away from the bearing surface.
3. Low-Carbon Steel Backing: The structural core of the washer, providing exceptionally high load-carrying capacity and superior heat dissipation.
4. Copper/Tin Plating (mm): A specialized protective coating that ensures the steel backing remains resistant to environmental corrosion.

Technical Data: Physical and Mechanical Properties

Usage Performance Ratings

Typical Applications

DP4 flanged washers meet the demanding criteria for long-life performance in critical sectors:

• Automotive Systems: Power steering cylinders, steering gear thrust washers, disc brakes, calipers, shock absorbers, and windshield wiper motors.
• Hydraulics & Valves: Gear pumps, rotary pumps, axial piston pumps, and various valve trunnions (ball, butterfly, and poppet).
• Business Automation: High-cycle components in photocopy machines, mail sorters, and computer terminal printers.
• Home Appliances: Reliable motion for air conditioners, refrigerators, sewing machines, and dishwashers.

Technical Specifications & Customization

Expert Guidance & Technical Support

Selecting the right composite material is essential for the longevity of your equipment. Whether you are replacing standard bronze bushings or designing a new high-cycle system, our team can provide detailed product data sheets for the DP4 Series. Please submit your inquiry via our website contact form or email us at [email protected] for a technical consultation.