Editorial Technical Reference

Brake Shoe

This page explains how Brake Shoe is classified within Motor Vehicle Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

A curved metal component lined with friction material that presses against the brake drum to slow or stop a vehicle.

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Product Specifications

Technical details and manufacturing context for Brake Shoe

Definition

The brake shoe is a key part of drum brake systems, used in passenger cars, trucks, and trailers. It is mounted inside the brake drum and, when actuated, expands outward to press the friction lining against the drum's inner surface, converting kinetic energy into heat. Brake shoes are specified by vehicle model, drum diameter, lining material, and friction coefficient. Grades differ in lining composition (e.g., organic, semi-metallic, ceramic) and performance characteristics such as heat fade resistance and wear rate.

Working Principle

When the brake pedal is pressed, hydraulic or pneumatic pressure forces the wheel cylinder pistons outward, pushing the brake shoes against the rotating drum. The friction between the lining and drum converts the vehicle's kinetic energy into thermal energy, slowing the wheel. The shoe's curvature matches the drum's inner radius to ensure maximum contact area and even wear.

Common Materials

Steel (e.g., SPCC, SPHC) for the shoe body, Friction lining: organic (non-asbestos), semi-metallic, ceramic, Adhesive or rivets for lining attachment

Technical Parameters

Parameter	Typical range	Notes & selection driver
Friction Coefficient	0.35–0.45 μ	Dynamic friction coefficient at 100°CGB 5763-2008
Drum Diameter	200–420 mm	Nominal brake drum inner diameter
Lining Thickness	4–12 mm	Thickness of friction material
Lining Width	40–120 mm	Width of friction material
Shoe Arc Length	100–300 mm	Arc length of the shoe
Shoe Web Thickness	3–6 mm	Thickness of the steel shoe body
Shoe Radius Tolerance	±0.5 mm	Tolerance on the shoe's radius
Surface Roughness	Ra 1.6–3.2 μm	On the shoe table where lining is bonded
Shear Strength of Lining	≥1.5 MPa	Minimum shear strength of lining-to-shoe bondGB 5763-2008
Maximum Operating Temperature	250–400 °C	Continuous operating limit
Wear Rate	0.1–0.5 cm³/MJ	Volume loss per unit friction energyGB 5763-2008
Weight	1.5–8 kg	Per shoe, depending on size

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

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Brake Shoe.

Published Manufacturer Relationships

Source-reviewed profile relationships currently associated with Brake Shoe

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Data Basis

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Preliminary Technical Classification

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