Introduction to Motorcycle Brake Shoes Metallic-Free Mixture
Motorcycle brake shoes metallic-free mixtures are eco-friendly brake shoes friction materials designed for lightweight urban and touring motorcycles. These brake shoes mixes eliminate metallic components like iron or copper, replacing them with advanced ceramic fibers, aramid reinforcements, and resin binders. This formulation prioritizes low noise, reduced rotor wear, and compliance with global environmental regulations. Below is a detailed analysis of their composition, technical specifications, advantages, and storage protocols.
Technical Parameters
The table below summarizes the critical properties of metallic-free brake shoes mixture:
| Parameter | Specification | Remarks |
|---|---|---|
| Ceramic Fiber Content | 20-35% (Silica-based fibers) | Enhances heat resistance and reduces dust emission |
| Density | 1.6-1.9 g/cm³ | 30% lighter than metallic alternatives |
| Friction Coefficient (μ) | 0.35-0.40 (Dry) | Stable under wet and dry conditions |
| Operating Temperature | -30°C to 500°C | Minimizes thermal fade in stop-and-go traffic |
| Compressive Strength | ≥200 MPa | Suitable for lightweight motorcycles |
| Wear Rate | ≤0.2 cm³/MJ | Extends rotor lifespan by 50% |
| Shore Hardness | 50-65 Shore D | Optimized for smooth drum contact |
Key Advantages
- Eco-Friendly Composition
Asbestos-free and metallic-free brake shoes formula reduces toxic dust emissions, aligning with EU REACH and RoHS standards. - Low Noise and Vibration
Ceramic additives dampen high-frequency vibrations, eliminating brake squeal common in urban riding . - Lightweight Design
A density of 1.6-1.9 g/cm³ improves motorcycle agility and fuel efficiency. - Reduced Rotor Wear
The brake shoes friction materials generate minimal abrasive particles, preserving brake drum surfaces. - Versatile Performance
Maintains stable friction coefficients (μ=0.35-0.40) in both dry and rainy conditions.
Storage and Packaging
- Moisture Protection: Vacuum-sealed in anti-static bags to prevent resin degradation.
- Temperature Limits: Store at 5°C–35°C; avoid freezing to maintain adhesive integrity.
- Stacking: Maximum 3 layers to prevent deformation of friction layers.
- Shelf Life: 12 months in unopened packaging; use within 6 months after opening.
Application of Brake Shoes Mixes
The brake shoes mixes are compression-molded at 10–20 MPa and cured at 150°C–200°C to bond friction layers to aluminum or steel backing plates. Post-production testing includes humidity cycling (95% RH, 48 hours) and shear strength validation (≥2.5 MPa). Customizable formulations are available for OEMs requiring specific wear rates or noise profiles.
By combining ceramic technology with rigorous environmental standards, these brake shoes friction materials deliver reliable, quiet, and sustainable braking solutions for modern motorcycles.