Introduction to Motorcycle Brake Shoes NAO (Non-Asbestos Organic) Mixture
Motorcycle brake shoes NAO mixtures are advanced brake shoes friction materials engineered to deliver eco-friendly, high-performance braking for lightweight and mid-weight motorcycles. Combining organic fibers, ceramic particles, and synthetic resins, this brake shoes formula prioritizes safety, durability, and environmental compliance. Below is a detailed overview of its composition, technical specifications, advantages, and storage guidelines.
Technical Parameters
The table below outlines key properties of a typical NAO-based brake shoes mixture:
| Parameter | Specification | Remarks |
|---|---|---|
| Organic Fiber Content | 30-45% (Aramid, Cellulose, Glass) | Ensures flexibility and noise reduction |
| Ceramic Additives | 10-20% (Silica, Alumina) | Enhances thermal stability and wear resistance |
| Density | 1.9-2.4 g/cm³ | Optimized for lightweight designs |
| Friction Coefficient (μ) | 0.35-0.45 (Dry) | Consistent across wet and dry conditions |
| Operating Temperature | -40°C to 400°C | Resists moderate thermal fade |
| Compressive Strength | ≥220 MPa | Suitable for urban and touring bikes |
| Wear Rate | ≤0.4 cm³/MJ | 30% lower than semi-metallic mixes |
| Shore Hardness | 55-65 Shore D | Balances grip and drum compatibility |
Key Advantages
- Eco-Friendly Composition
The brake shoes formula eliminates asbestos and heavy metals, aligning with global environmental regulations (e.g., REACH, RoHS). - Low Noise and Vibration
Organic fibers and ceramic additives dampen vibrations, reducing squeal during braking. - Stable Friction Performance
The brake shoes friction materials maintain consistent μ values across varying humidity and temperature conditions, ideal for unpredictable weather. - Extended Service Life
A wear rate of ≤0.4 cm³/MJ ensures longevity for motorcycles with frequent stop-and-go usage (e.g., city commuting). - Compatibility
Designed for compatibility with both cast iron and aluminum alloy brake drums, common in motorcycles like Honda CG150 and Suzuki AX100.
Storage and Packaging
- Moisture Control: Packaged in vacuum-sealed, desiccant-included bags to prevent resin degradation.
- Temperature: Store in dry environments (15°C–30°C); avoid prolonged exposure to UV light.
- Stacking: Limit stacking to 6 layers to prevent deformation of friction layers.
- Shelf Life: 18 months in unopened packaging; use within 6 months after opening.
Application of brake shoes mixes
The brake shoes mixes are molded under moderate pressure (10–20 MPa) and cured at 150°C–200°C to bond the organic-ceramic matrix to steel backing plates. Post-production tests include shear strength validation (≥2.5 MPa) and thermal cycling (300 cycles at 400°C) to ensure reliability. Custom formulations are available for OEMs seeking specific friction profiles or reduced dust emission.
By integrating eco-conscious materials with precision engineering, NAO-based brake shoes mixtures redefine safety and sustainability for modern motorcycles, particularly in urban and mixed-terrain environments.