Introduction to Truck Brake Shoes Brass-Free Mixture
Truck brake shoes brass-free mixtures are eco-friendly brake shoes friction materials designed to meet stringent environmental regulations while maintaining high-performance braking efficiency. By eliminating brass and other copper-based elements, this brake shoes formula reduces environmental impact and minimizes wear on brake drums. Below is a detailed overview of its composition, technical specifications, advantages, and storage guidelines.
Technical Parameters
The table below summarizes critical properties of brass-free brake shoes mixes:
| Parameter | Specification | Remarks |
|---|---|---|
| Metallic Content | 0% Brass, 30-45% Steel Fibers | Complies with low-copper regulations |
| Density | 2.5-3.0 g/cm³ | Optimized for lightweight durability |
| Friction Coefficient (μ) | 0.38-0.42 (Dry) | Stable performance across conditions |
| Operating Temperature | -40°C to 650°C | Resists thermal degradation |
| Shear Strength | ≥3.8 MPa | Ensures structural integrity |
| Wear Rate | ≤0.4 cm³/MJ | Extended lifespan under heavy loads |
| Shore Hardness | 65-80 Shore D | Enhanced drum compatibility |
Key Advantages
- Environmental Compliance
Free from brass and copper, this brake shoes mixture aligns with global regulations (e.g., EU Directive 2000/53/EC) to reduce heavy metal pollution . - Reduced Drum Wear
Steel fibers and ceramic additives minimize abrasive damage to brake drums, lowering maintenance costs . - High Thermal Stability
Operates efficiently at extreme temperatures, preventing brake fade during prolonged braking . - Low Noise and Vibration
Ceramic particles and optimized brake shoes formula suppress noise, enhancing driver comfort . - Cost-Effectiveness
Long service life (up to 200,000 km) and compatibility with standard brake systems reduce replacement frequency .
Storage and Packaging
- Moisture Protection: Packaged in vacuum-sealed, anti-corrosion materials to prevent oxidation .
- Temperature Control: Store in dry environments below 35°C; avoid freezing temperatures .
- Stacking Limits: Maximum 6 layers to prevent deformation of friction materials.
- Shelf Life: 18 months in unopened packaging.
Application of Brake Shoes Mixes
The brake shoes mixes are molded under 20-35 MPa pressure and sintered to bond friction layers with shoe plates. Post-production tests validate shear strength (≥3.8 MPa) and thermal cycling resistance, ensuring compliance with OEM standards . Custom formulations are available to meet specific load capacities or regional regulatory requirements.
By integrating advanced materials and eco-conscious design, brass-free brake shoes mixtures deliver reliable, sustainable braking solutions for modern commercial vehicles.