Introduction to Motorcycle Brake Shoes No Brass Mixture
Motorcycle brake shoes no brass mixtures are innovative brake shoes friction materials designed to address environmental concerns while maintaining high braking performance. By eliminating brass components, these brake shoes mixes reduce heavy metal pollution and enhance compatibility with modern braking systems. Below is a detailed overview of their composition, technical specifications, advantages, and storage guidelines.
Technical Parameters
The table below highlights the critical properties of a no brass brake shoes formula:
| Parameter | Specification | Remarks |
|---|---|---|
| Primary Components | Ceramic, Steel Fibers, Graphite (85-95%) | Brass-free composition ensures eco-friendliness |
| Density | 2.0-2.5 g/cm³ | Lightweight design for reduced unsprung mass |
| Friction Coefficient (μ) | 0.38-0.48 (Dry) | Stable performance across urban and off-road conditions |
| Operating Temperature | -40°C to 550°C | Minimal thermal fade under repeated braking |
| Compressive Strength | ≥220 MPa | Robust bonding to steel backing plates |
| Wear Rate | ≤0.4 cm³/MJ | 30% lower than brass-containing alternatives |
| Shore Hardness | 55-70 Shore D | Optimized for drum and disc compatibility |
Key Advantages
- Eco-Friendly Composition
Free from brass and other heavy metals, this brake shoes mixture aligns with global regulations (e.g., EU REACH) to minimize environmental impact. - Reduced Rotor/Drum Wear
Ceramic and graphite additives in the brake shoes friction materials generate less abrasive dust, prolonging the lifespan of brake drums. - Thermal Stability
Steel fibers and ceramic particles ensure consistent friction even during high-speed stops or downhill riding. - Low Noise
Vibration-damping properties eliminate squeal, enhancing rider comfort. - Versatility
Suitable for both drum and disc brake systems in motorcycles, scooters, and off-road vehicles.
Storage and Packaging
- Moisture Resistance: Packaged in vacuum-sealed, desiccant-included bags to prevent oxidation of steel fibers.
- Temperature Range: Store at 10°C–35°C; avoid freezing to maintain adhesive integrity.
- Stacking Limit: Maximum 3 layers to prevent deformation of friction linings.
- Shelf Life: 18 months in unopened, UV-protected containers.
Application of Brake Shoes Mixes
The brake shoes mixes are manufactured using high-pressure molding (10–25 MPa) and cured at 200°C–300°C to bond the friction layer to stamped steel shoes. Post-production testing includes thermal cycling (300 cycles at 550°C) and shear strength validation (≥3.5 MPa). Custom formulations are available for OEMs seeking specific friction profiles or compatibility with ABS systems.
By combining advanced materials with sustainable design, no brass brake shoes friction materials deliver reliable braking performance while meeting modern environmental and safety standards.