行业组件数据 · 2026

刹车片/刹车蹄

Brake pads and shoes are friction components that convert kinetic energy into thermal energy to slow or stop vehicles and machinery.

技术定义与适配语境
典型 刹车片/刹车蹄 会按材料、尺寸公差、适配关系和失效风险在 汽车制造 中评估。

Brake pads (used in disc brake systems) and brake shoes (used in drum brake systems) are critical safety components in braking mechanisms. They consist of a steel backing plate bonded to a friction material formulation. When hydraulic or mechanical pressure is applied, these components press against rotating surfaces (rotors or drums), creating friction that decelerates the vehicle or equipment through energy conversion. Their performance directly affects braking efficiency, noise levels, dust generation, and system longevity.

组件规格

定义
Brake pads (used in disc brake systems) and brake shoes (used in drum brake systems) are critical safety components in braking mechanisms. They consist of a steel backing plate bonded to a friction material formulation. When hydraulic or mechanical pressure is applied, these components press against rotating surfaces (rotors or drums), creating friction that decelerates the vehicle or equipment through energy conversion. Their performance directly affects braking efficiency, noise levels, dust generation, and system longevity.
工作原理
The working principle relies on friction conversion: when the brake pedal is activated, hydraulic pressure forces the brake pad against the rotor (disc brakes) or the brake shoe against the drum (drum brakes). This contact creates kinetic friction, converting the vehicle's motion energy into heat energy dissipated into the atmosphere. The friction coefficient of the material determines braking force, while thermal management prevents brake fade and component failure.
材料
Friction materials typically include: organic compounds (resinsrubberglass)semi-metallic formulations (steel woolcoppergraphite)ceramic composites (ceramic fibersnon-ferrous fillers)and low-metallic NAO (Non-Asbestos Organic) materials. Backing plates are made from stamped or cast steel with anti-corrosion coatings. Some premium versions include shimswear sensorsand chamfered edges.
Thickness
8-15 mm (new), 2-3 mm (minimum wear)
Shear Strength
>15 MPa
Compressibility
<2%
Friction Coefficient
0.35-0.45 (EE rating)
Operating Temperature
-40°C to 600°C
标准
ISO 15484DIN 72551SAE J866ECE R90

行业分类与别名

刹车片/刹车蹄 的常用贸易名称、技术标识和检索关键词。

上级产品

该组件会出现在以下整机或工业产品中。

FMEA · 风险与缓解

诱因 → 失效模式 → 工程缓解

Overheating due to aggressive braking->Brake fade and reduced stopping power->Use high-temperature friction materials, improve cooling ventilation, implement proper bedding procedures
Contamination by brake fluid or oil->Loss of friction coefficient and uneven braking->Proper sealing of hydraulic systems, regular inspection, immediate replacement if contaminated
Improper installation or incompatible components->Premature wear, noise, and reduced performance->Follow manufacturer specifications, use proper installation tools, verify compatibility

工业生态与工程逻辑

0
Brake fade from overheating
1
Contamination from fluids or debris
2
Uneven wear leading to pulling
3
Cracking from thermal stress
4
Reduced effectiveness in wet conditions

合规与检测

tolerance
Thickness variation ±0.2 mm, parallelism within 0.05 mm, friction coefficient consistency within ±10%
test method
Dynamometer testing per ISO 15484, noise testing per SAE J2521, wear measurement through controlled stop cycles

制造该组件的工厂

来自 CNFX 组件能力表的相关制造商资料。

制造商列表用于前期研究和供应商能力理解,不代表认证、排名或交易担保。

采购评估维度

不是客户评论,也不是实时热度。以下维度用于前期 RFQ 准备和供应商评估。

技术文档
4/5
制造能力
4/5
可检验性
5/5
供应商透明度
3/5

这些分值是采购评估维度示例,不代表真实客户评分、具体国家买家反馈或实时询盘。

相关组件

常见问题

What is the difference between brake pads and brake shoes?

Brake pads are used in disc brake systems and press against a rotating rotor, while brake shoes are used in drum brake systems and expand outward against a rotating drum. Pads typically offer better heat dissipation, while shoes are more protected from environmental elements.

How often should brake pads/shoes be replaced?

Replacement intervals vary by usage (typically 40,000-70,000 km for vehicles), but should always be based on wear measurements. Industrial machinery follows maintenance schedules based on operating hours and load cycles. Always replace in axle sets.

What causes brake squealing noise?

Common causes include: vibration between pad and caliper (addressed with shims), glazed friction surfaces, worn hardware, or high-frequency resonance. Proper bedding-in procedures and quality components minimize noise.

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CNFX Industrial Component Index · 汽车制造

数据基础

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