Introduction to Car Brake Shoes with Non-Metallic Formula
Non-metallic brake shoes employ an innovative Brake Shoes Formula composed of advanced Brake Shoes Friction Materials, delivering superior performance while minimizing environmental impact. This Brake Shoes Mixture replaces traditional metallic components with composite materials, ensuring durability and compliance with global safety standards.
Technical Specifications
| Parameter | Value/Description |
|---|---|
| Friction Coefficient | 0.36–0.42 (μ) |
| Operating Temperature | -30°C to 600°C |
| Compressive Strength | ≥80 MPa |
| Density | 2.0–2.3 g/cm³ |
| Hardness (Shore D) | 75–80 |
| Certifications | SAE J661, ECE R90, ISO 9001 |
Key Advantages
- Low Noise & Vibration
- The Brake Shoes Mixes blend ceramic fibers (25–30%), aramid pulp (5–8%), and organic resins, reducing squeal noise by 50% compared to metallic variants.
- Enhanced Heat Resistance
- Stable friction performance across a wide temperature range (-30°C to 600°C), preventing brake fade during prolonged use.
- Eco-Friendly Design
- Asbestos-free and heavy-metal-free composition aligns with EU REACH and RoHS directives.
- Corrosion Resistance
- Non-metallic brake shoes friction materials resist saltwater and humidity, extending drum lifespan by 25%.
Storage & Packaging Guidelines
- Packaging:
- Individually wrapped in moisture-proof aluminum foil bags.
- Outer cartons feature crush-resistant padding and humidity indicators (max 55% RH).
- Storage:
- Temperature: 5°C–30°C in dry, UV-protected environments.
- Stacking limit: ≤8 layers to avoid deformation.
Formula Composition
The optimized brake shoes formula includes:
- Friction Modifiers: Graphite (10–12%), silica (6–8%)
- Binders: Modified phenolic resin (12–15%)
- Reinforcements: Ceramic fibers (30–35%), glass particles (5–7%)
This brake shoes mixture ensures balanced braking efficiency for commercial vehicles and urban transit systems.