行业组件数据 · 2026

车轴

A central shaft for rotating wheels or gears, transmitting torque and supporting loads in wheel assemblies.

技术定义与适配语境
典型 车轴 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。

An axle is a critical mechanical component that serves as the central rotating shaft in wheel assemblies, designed to transmit torque from the drivetrain to the wheels while supporting the vehicle's weight and handling dynamic loads from acceleration, braking, and cornering. In automotive applications, axles are integral to the suspension and drivetrain systems, ensuring proper wheel alignment, power distribution, and structural integrity under various operating conditions.

组件规格

定义
An axle is a critical mechanical component that serves as the central rotating shaft in wheel assemblies, designed to transmit torque from the drivetrain to the wheels while supporting the vehicle's weight and handling dynamic loads from acceleration, braking, and cornering. In automotive applications, axles are integral to the suspension and drivetrain systems, ensuring proper wheel alignment, power distribution, and structural integrity under various operating conditions.
工作原理
The axle operates on the principle of rotational mechanics, where torque applied to the shaft causes the attached wheels to rotate, enabling vehicle motion. It functions as a load-bearing member, transferring vertical loads from the vehicle chassis to the wheels and reacting to lateral and longitudinal forces during driving maneuvers. In driven axles, it transmits power from the differential to the wheels, while in non-driven axles, it primarily provides structural support and wheel mounting.
材料
Typically made from high-strength alloy steels such as AISI 4140 or 4340often heat-treated (quenched and tempered) to achieve tensile strengths of 850-1000 MPa. For lightweight applicationsaluminum alloys (e.g.6061-T6) or composite materials may be used. Surface treatments include induction hardeningshot peeningor chrome plating for wear resistance.
Length
800-1500 mm
Weight
15-50 kg
Diameter
30-100 mm
Spline Type
Involute splines (e.g., 10-32 teeth)
Load Capacity
2000-5000 kg per axle
Torque Rating
500-3000 Nm
Bearing Surfaces
Ground to Ra 0.4-0.8 μm
标准
ISO 286-2DIN 5480SAE J498ISO 1101

行业分类与别名

车轴 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

Material defects or improper heat treatment->Crack propagation leading to fracture->Implement ultrasonic testing during manufacturing and regular non-destructive inspections
Excessive torque or shock loads->Plastic deformation or twisting->Design with adequate safety factors and install torque limiters in drivetrain

工业生态与工程逻辑

0
Fatigue failure from cyclic loading
1
Bending or torsion overload
2
Spline wear leading to power loss
3
Corrosion in harsh environments
4
Improper alignment causing vibration

合规与检测

tolerance
±0.05 mm on critical diameters, straightness within 0.1 mm/m
test method
Dynamic fatigue testing per ISO 1143, torque testing per SAE J218, hardness verification per ASTM E18

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 a live axle and a dead axle?

A live axle transmits power to the wheels and rotates with them, typically connected to the drivetrain. A dead axle does not rotate and only provides structural support, commonly found in trailer applications.

How often should axles be inspected for wear?

Axles should be inspected during regular maintenance intervals (every 20,000-30,000 km) for signs of bending, spline wear, corrosion, or fatigue cracks, especially in high-load applications.

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CNFX Industrial Component Index · 汽车制造

数据基础

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初步技术归类
本页用于结构化准备研究、RFQ 和供应商评估,不替代买方自己的供应商资质审查、标准核验和技术批准。

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