INDUSTRY COMPONENT

Brake Pad (Friction Material)

Brake pads are friction materials that create stopping force by pressing against rotating brake discs or drums in automotive and industrial braking systems.

Component Specifications

Definition
Brake pads are critical components in disc brake systems, consisting of a steel backing plate bonded to a friction material layer. They convert kinetic energy into thermal energy through friction when pressed against a rotating brake rotor, enabling vehicle deceleration and stopping. Their performance directly affects braking efficiency, noise levels, and rotor wear.
Working Principle
When hydraulic pressure from the brake pedal activates the caliper, pistons push the brake pads against both sides of the rotating brake rotor. The resulting friction generates heat and torque opposite to the wheel's rotation, converting kinetic energy into thermal energy dissipated through the rotor and pads, thereby slowing the vehicle.
Materials
Friction materials typically consist of: 1) Organic/non-asbestos organic (NAO): Rubber, glass, Kevlar fibers with resin binders. 2) Semi-metallic: 30-65% steel/iron fibers with graphite/organic fillers. 3) Low-metallic NAO: Small metal content with organic materials. 4) Ceramic: Copper fibers embedded in ceramic compounds. Backing plates are made of stamped or cast steel.
Technical Parameters
ParameterTypical rangeNotes & selection driver
Thickness8-15 mm (new), 2-3 mm (wear limit)
Shear Strength>10 MPa
Compressibility<2% at 70 bar
Friction Coefficient0.35-0.45 (standard), 0.45-0.55 (performance)
Operating Temperature-40°C to 600°C

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards
ISO 15484, DIN 74100, SAE J866, ECE R90

Parent Products

This component is used in the following industrial products

Engineering Analysis

Risks & Mitigation
  • Pad glazing from overheating
  • Uneven wear causing vibration
  • Contamination reducing friction
  • Noise generation (squealing)
  • Premature rotor wear
FMEA Triads
Trigger: Overheating from aggressive braking
Failure: Fade reduced braking efficiency
Mitigation: Use high-temperature rated pads; improve cooling
Trigger: Contamination by oil/brake fluid
Failure: Loss of friction material adhesion
Mitigation: Proper sealing during installation; regular inspection

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance
Thickness variation ±0.2mm, parallelness 0.05mm
Test Method
Dynamometer testing per ISO 15484 for friction performance, wear rate, and noise

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation
Request current drawings, revision history, and a signed specification sheet.
Manufacturing capability
Verify equipment lists, process limits, capacity, and representative production evidence.
Inspection readiness
Confirm test methods, calibrated equipment, sampling plans, and traceable reports.
Supplier transparency
Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Brake Pad (Friction Material)

Manufacturer profiles associated with Brake Pad (Friction Material).

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Related Components

Brake Disc (Rotor)
A rotating disc in disc brake systems that creates friction with brake pads to slow or stop vehicle motion.
Main Bearing Journals
Main bearing journals are precision-machined cylindrical surfaces on a crankshaft that rotate within main bearings to support rotational motion in internal combustion engines.
Surround
Structural component that encloses and protects suspension system elements while providing mounting points and structural integrity.
Brake Disc/Rotor
A rotating disc component in disc brake systems that converts kinetic energy into thermal energy through friction to slow or stop vehicle motion.

Frequently Asked Questions

How often should brake pads be replaced?

Typically every 40,000-70,000 miles, but depends on driving conditions, pad material, and vehicle type. Check when thickness reaches 3mm or as indicated by wear sensors.

What's the difference between ceramic and semi-metallic brake pads?

Ceramic pads offer quieter operation, less dust, and consistent performance but are costlier. Semi-metallic pads provide better heat dissipation and cold performance but may produce more noise and dust.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

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Brake Disc/Rotor Brake Piston(s)
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