This page explains how Brake Pad is classified within Motor Vehicle Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.
A friction component that converts kinetic energy to heat to slow or stop a vehicle when pressed against a brake disc.
Technical details and manufacturing context for Brake Pad
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Friction Coefficient (μ) | 0.35–0.45 - | Typical range for passenger car pads; must be stable across temperature.SAE J866 |
| Operating Temperature Range | -40 to 400 °C | Continuous operation; peak may be higher. |
| Wear Rate | 0.1–0.5 mm/1000 km | Depends on material and driving conditions.GB 5763 |
| Shear Strength (backing plate to friction material) | ≥ 3.0 MPa | Minimum bond strength.ISO 15484 |
| Compressibility | 50–150 μm/kN | Measured at 16 MPa; affects pedal feel.ISO 15484 |
| Thickness | 10–20 mm | Typical total pad thickness; varies by vehicle. |
| Length | 80–200 mm | Depends on caliper size. |
| Width | 40–100 mm | Depends on caliper size. |
| Surface Roughness (friction surface) | 1.6–3.2 μm Ra | As-machined; affects bedding. |
| Density | 2.0–3.0 g/cm³ | Typical for friction material. |
| Hardness (friction material) | 60–90 Shore D | Indicates resistance to indentation. |
| Noise Level | < 70 dB(A) | Measured under specific conditions; lower is better. |
| Thermal Conductivity | 0.5–2.0 W/m·K | Affects heat transfer to caliper. |
| Coefficient of Variation (μ) | ≤ 10 % | Stability of friction coefficient across tests. |
Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.
A practical evidence checklist for RFQ preparation and supplier evaluation.
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12 companies list this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.
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For passenger car pads, the friction coefficient typically ranges from 0.35 to 0.45 as per SAE J866. This value must remain stable across the operating temperature range to ensure consistent braking performance.
Common friction materials include NAO (Non-Asbestos Organic) compounds, low-metallic, semi-metallic, and ceramic compounds. The backing plate is typically made of steel, such as SPCC or DC01.
Relevant standards include ISO 15484, SAE J866, GB 5763, and ECE R90. These standards cover testing methods, performance requirements, and quality criteria. Always verify compliance with the manufacturer.
Selection depends on vehicle type, driving conditions, and performance requirements. Consider dimensions, friction material, and performance parameters such as friction coefficient, temperature range, and wear rate. Always consult the vehicle manufacturer's specifications.
Commonly used trade names and technical identifiers for Brake Pad.
Editorial classification, named public sources where available, and source-reviewed manufacturer records.
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