Introduction to Truck Brake Linings No Asbestos Mixture
Truck brake linings no asbestos mixtures are eco-friendly brake linings friction materials designed for heavy-duty vehicles, replacing traditional asbestos with advanced synthetic fibers (e.g., aramid, ceramic) and metallic reinforcements. This brake linings formula prioritizes safety, durability, and compliance with global environmental regulations while maintaining high braking efficiency. Below is a detailed overview of its composition, technical specifications, advantages, and storage guidelines.
Technical Parameters
The table below highlights key properties of a typical no asbestos brake linings mixture:
| Parameter | Specification | Remarks |
|---|---|---|
| Non-Asbestos Composition | 60-80% (Aramid, Ceramic, Steel fibers) | Eliminates health hazards |
| Density | 2.4-2.8 g/cm³ | Lightweight yet robust design |
| Friction Coefficient (μ) | 0.38-0.48 (Dry) | Consistent under heavy loads |
| Operating Temperature | -40°C to 600°C | Minimal thermal fade |
| Wear Rate | ≤0.4 cm³/MJ | Extended service life |
| Compressive Strength | ≥250 MPa | Resists deformation under pressure |
| Shore Hardness | 55-70 Shore D | Optimized for drum/pad compatibility |
Key Advantages
- Eco-Friendly and Safe
Free from asbestos, the brake linings mixture eliminates carcinogenic risks, aligning with OSHA and EU regulations. - High Thermal Stability
Ceramic additives and steel fibers enhance heat dissipation, reducing brake fade during prolonged braking . - Low Noise and Vibration
Aramid fibers and damping agents minimize squeal, ensuring quieter operation . - Cost-Effective Durability
The brake linings mixes exhibit a 20-30% longer lifespan compared to semi-metallic alternatives . - Versatile Compatibility
Suitable for both drum and disc brake systems in trucks and trailers .
Storage and Packaging
- Moisture Protection: Sealed in moisture-resistant vacuum packaging to prevent fiber degradation .
- Temperature Control: Store in dry environments below 35°C; avoid freezing temperatures.
- Stacking Limits: Maximum 6 layers to avoid deformation of linings.
- Shelf Life: 18-24 months in unopened packaging .
Application of Brake Linings Formula
The brake linings formula is molded under high pressure (10-25 MPa) and bonded to steel backing plates using phenolic resins. Post-production, each lining undergoes rigorous testing for shear strength (≥3.5 MPa) and thermal cycling resistance . Customizable formulations are available to meet OEM specifications for friction gradients and wear rates.
This innovative blend of synthetic fibers and metallic components ensures reliable, eco-conscious braking performance for commercial vehicles operating in diverse conditions.