Introduction to Truck Brake Linings Less Metallic Mixture
Truck brake linings with a less metallic mixture are engineered to balance performance, durability, and environmental compatibility. These brake linings friction materials incorporate reduced metallic content (typically below 30%) combined with ceramic compounds, organic fibers, and specialized binders, making them ideal for applications requiring lower noise, reduced rotor wear, and consistent braking under moderate to heavy loads. Below is a detailed overview of their technical specifications, advantages, and storage guidelines.
Technical Parameters
The table below outlines key properties of a typical less metallic brake linings mixture:
| Parameter | Specification | Remarks |
|---|---|---|
| Metallic Content | 10-30% (Iron, Copper particles) | Minimizes rotor abrasion |
| Friction Coefficient (μ) | 0.30-0.40 (Dry) | Stable at moderate temperatures |
| Operating Temperature | -30°C to 450°C | Resists thermal fade |
| Density | 2.0-2.5 g/cm³ | Lightweight design |
| Compressive Strength | ≥250 MPa | Suitable for hydraulic systems |
| Wear Rate | ≤0.4 cm³/MJ | Extended service life |
| Shore Hardness | 55-65 Shore D | Optimized for noise reduction |
Key Advantages
- Reduced Rotor Wear
The brake linings formula minimizes metallic abrasion, preserving brake disc/drum integrity . - Low Noise and Vibration
Ceramic additives and organic fibers dampen vibrations, reducing squeal . - Environmental Compliance
Free from asbestos and heavy metals, meeting global eco-standards . - Thermal Stability
Maintains consistent friction performance up to 450°C, ideal for urban and highway driving . - Cost-Effectiveness
Lower metallic content reduces material costs while maintaining durability .
Storage and Packaging
- Moisture Protection: Packed in vacuum-sealed, moisture-resistant polybags to prevent oxidation .
- Temperature Limits: Store in dry environments below 40°C to avoid binder degradation .
- Stacking Guidelines: Maximum 6 layers per pallet to prevent deformation.
- Shelf Life: 18 months in unopened packaging .
Application of brake linings mixes
The brake linings mixes are compression-molded under 10-20 MPa pressure and cured at 150-200°C to ensure adhesion to the backing plate . Post-production testing includes shear strength (≥3.5 MPa) and thermal cycling validation . Custom formulations can adjust ceramic-to-metallic ratios for specific OEM requirements .
This less metallic brake linings mixture offers a sustainable and efficient solution for modern trucks, aligning with industry demands for quieter, eco-friendly, and high-performance braking systems.