Introduction to Car Brake Shoes with No Metallic Formula
Non-metallic brake shoes utilize an advanced Brake Shoes Formula composed of eco-friendly Brake Shoes Friction Materials, delivering superior performance while eliminating metal content. This innovative Brake Shoes Mixture combines high-performance composites to ensure durability, reduced noise, and environmental compliance.
Technical Specifications
| Parameter | Value/Description |
|---|---|
| Friction Coefficient | 0.35–0.42 (μ) |
| Operating Temperature | -40°C to 600°C |
| Compressive Strength | ≥90 MPa |
| Density | 2.2–2.5 g/cm³ |
| Hardness (Rockwell) | 80–85 HRB |
| Certifications | SAE J661, ECE R90, ISO 26865 |
Key Advantages
- Zero Metal Content
- The brake shoes friction materials blend ceramic fibers, aramid particles, and organic resins, eliminating rotor scoring and extending drum lifespan by 25%.
- Noise Reduction
- Optimized Brake Shoes Mixes reduce high-frequency squeal (<65 dB at 80 km/h braking), ideal for urban driving.
- Thermal Stability
- Maintain consistent friction performance across extreme temperatures (-40°C to 600°C), preventing brake fade during heavy loads.
- Eco-Friendly Design
- Asbestos-free and heavy-metal-free, complying with EU REACH and RoHS directives.
Formula Composition
The brake shoes formula includes:
- Friction Modifiers: Graphite (10–12%), boron nitride (5–8%)
- Reinforcements: Ceramic fibers (30–35%), glass wool (15–18%)
- Binders: Modified phenolic resin (12–15%)
- Lubricants: Cashew particles (3–5%)
This brake shoes mixture ensures balanced wear resistance and heat dissipation for commercial vehicles and passenger cars.
Storage & Packaging Guidelines
- Packaging:
- Individually wrapped in moisture-proof aluminum foil.
- Stacked on pallets with shock-absorbent edge protectors (max 4 layers).
- Storage:
- Temperature: 5°C–30°C in dry, dust-free environments.
- Avoid direct sunlight; relative humidity <55%.
Application Scenarios
Designed for heavy-duty vehicles (e.g., trucks, buses) and high-performance passenger cars, these brake shoes excel in:
- Frequent stop-and-go traffic
- Mountainous terrain with prolonged braking
- Corrosive environments (coastal/industrial areas).
This no-metallic formula redefines reliability and sustainability in braking systems, offering a 20% longer service life compared to traditional semi-metallic designs.