行业组件数据 · 2026

制动钳壳体

繁體:制動鉗殼體

制动钳壳体是盘式制动系统中经过精密加工的主要结构件和功能单元。

技术定义与适配语境
典型 制动钳壳体 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。

制动钳壳体是盘式制动系统中经过精密加工的主要结构件和功能单元。它安装在制动盘上方,包含活塞、制动片和液压油通道。当主缸施加液压压力时,壳体内的活塞向外移动,将制动片压向制动盘,产生摩擦力使车辆减速。壳体必须承受极大的机械应力、制动热引起的热膨胀以及腐蚀性环境条件,同时保持尺寸稳定性和密封完整性。 制动钳壳体基于液压和机械原理工作。来自制动系统的液压流体压力驱动壳体内的活塞,活塞将力传递给制动片。壳体将液压能转换为线性机械运动,将制动片夹紧在旋转的制动盘上,产生摩擦并将动能转化为热能,从而使车辆停止。

组件规格

定义
制动钳壳体是盘式制动系统中经过精密加工的主要结构件和功能单元。它安装在制动盘上方,包含活塞、制动片和液压油通道。当主缸施加液压压力时,壳体内的活塞向外移动,将制动片压向制动盘,产生摩擦力使车辆减速。壳体必须承受极大的机械应力、制动热引起的热膨胀以及腐蚀性环境条件,同时保持尺寸稳定性和密封完整性。

制动钳壳体基于液压和机械原理工作。来自制动系统的液压流体压力驱动壳体内的活塞,活塞将力传递给制动片。壳体将液压能转换为线性机械运动,将制动片夹紧在旋转的制动盘上,产生摩擦并将动能转化为热能,从而使车辆停止。
工作原理
The caliper housing operates on hydraulic and mechanical principles. Hydraulic fluid pressure from the brake system actuates pistons inside the housing, which transfer force to brake pads. The housing converts this hydraulic energy into linear mechanical motion, clamping brake pads against the rotating rotor to generate friction and kinetic energy conversion into heat, thereby stopping the vehicle.
材料
通常由铸铁(灰铸铁或球墨铸铁)、铝合金(轻量化应用采用A356-T6)或偶尔使用锻钢制成。材料必须具有高抗拉强度(200-350 MPa)、良好的导热性、耐腐蚀性以及在热循环下的尺寸稳定性。铝制壳体通常含有硅(6.5-7.5%)以改善铸造性能和耐磨性。
Weight
1.5-4.5 kg
Bore Diameter
30-60 mm
Mounting Type
Fixed or Floating
Surface Finish
Ra 1.6-3.2 μm
Pressure Rating
Up to 200 bar
Casting Tolerance
±0.5 mm
Piston Configuration
Single, Dual, or Multi-piston
Operating Temperature
-40°C to 300°C
标准
ISO 15484DIN 74252SAE J431ISO 26262

行业分类与别名

制动钳壳体 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

Thermal cycling during braking->Housing cracks develop, leading to hydraulic fluid leakage->Use materials with proper thermal expansion coefficients, implement stress-relief heat treatments, and design with adequate wall thickness and reinforcement ribs
Corrosive road salt and moisture exposure->Piston bore corrosion causes sticking pistons and uneven braking->Apply corrosion-resistant coatings (e.g., powder coating, anodizing for aluminum), use stainless steel pistons, and ensure proper sealing
Improper installation or over-torquing->Mounting ear fractures or thread damage compromising structural integrity->Specify precise torque values (typically 70-120 Nm), use thread locking compounds, and provide clear installation guidelines

工业生态与工程逻辑

0
Cracking from thermal stress
1
Corrosion leading to piston seizure
2
Fluid leakage from seal failure
3
Mounting bolt fatigue failure
4
Incompatible material expansion

合规与检测

tolerance
Dimensional tolerances per ISO 2768-m, bore roundness within 0.01 mm, parallelism within 0.02 mm
test method
Pressure testing at 1.5x operating pressure, thermal cycling tests (-40°C to 300°C), salt spray corrosion testing per ASTM B117, fatigue testing with cyclic loading

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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 fixed and floating caliper housings?

Fixed caliper housings have pistons on both sides of the rotor and remain stationary, providing even pressure distribution and better performance. Floating caliper housings have pistons on only one side and slide on pins or bushings, making them simpler and more cost-effective for most passenger vehicles.

How often should caliper housings be inspected?

Caliper housings should be inspected during every brake service (typically every 20,000-40,000 miles) for cracks, corrosion, piston sticking, and fluid leaks. Complete visual and functional inspections are recommended annually or whenever brake performance issues are noticed.

Can aluminum caliper housings replace cast iron ones?

Yes, aluminum housings are increasingly used for weight reduction and better heat dissipation, but they require different manufacturing processes and may have different thermal expansion characteristics. Direct replacement depends on specific vehicle design and compatibility with existing brake systems.

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CNFX Industrial Component Index · 汽车制造

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初步技术归类
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URN:CNFX:ME:UNIT:CALIPER_HOUSING