行业组件数据 · 2026

半轴孔

半轴孔是差速器壳体两侧精密加工的圆柱孔,用于安装和固定半轴,实现扭矩传递并保持对中。

技术定义与适配语境
典型 半轴孔 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。

半轴孔是差速器壳体两侧精密加工的圆柱孔,用于容纳和固定半轴。这些孔作为差速器总成与车辆驱动轮之间的接口,允许扭矩从差速器齿轮传递到半轴,同时保持正确的对中和轴承支撑。孔内通常设有花键或键槽表面,与半轴上的对应特征啮合,确保无滑移的正向扭矩传递。 半轴孔在差速器总成中作为安装点和扭矩传递接口。当差速器齿轮旋转时,扭矩通过半轴齿轮经花键或键槽连接传递到半轴。孔通过支撑半轴的轴承表面保持精确的径向对中,而轴向位置由保持机构(卡环、螺栓或压配合)控制。这样,旋转力从差速器传递到车轮,同时适应车辆运行中差速器壳体与半轴之间的相对运动。

组件规格

定义
半轴孔是差速器壳体两侧精密加工的圆柱孔,用于容纳和固定半轴。这些孔作为差速器总成与车辆驱动轮之间的接口,允许扭矩从差速器齿轮传递到半轴,同时保持正确的对中和轴承支撑。孔内通常设有花键或键槽表面,与半轴上的对应特征啮合,确保无滑移的正向扭矩传递。

半轴孔在差速器总成中作为安装点和扭矩传递接口。当差速器齿轮旋转时,扭矩通过半轴齿轮经花键或键槽连接传递到半轴。孔通过支撑半轴的轴承表面保持精确的径向对中,而轴向位置由保持机构(卡环、螺栓或压配合)控制。这样,旋转力从差速器传递到车轮,同时适应车辆运行中差速器壳体与半轴之间的相对运动。
工作原理
Axle shaft openings function as mounting points and torque transfer interfaces within the differential assembly. When the differential gears rotate, torque is transmitted through the side gears to the axle shafts via the splined or keyed connection within these openings. The openings maintain precise radial alignment through bearing surfaces that support the axle shafts, while axial positioning is controlled by retaining mechanisms (snap rings, bolts, or press fits). This allows rotational force to be transferred from the differential to the wheels while accommodating the relative motion between differential case and axle shafts during vehicle operation.
材料
通常采用锻造或铸造钢合金制造如SAE 4140、SAE 8620或类似的中碳钢并进行表面渗碳处理。常见规格包括:材料:SAE 4140钢硬度:渗碳后表面硬度58-62 HRC显微组织:回火马氏体具有受控的渗碳层深度屈服强度:≥ 850 MPa抗拉强度:≥ 1000 MPa。
Roundness
≤ 0.02 mm
Case Depth
0.8-1.2 mm
Concentricity
≤ 0.05 mm TIR
Surface Finish
Ra 0.8-1.6 μm
Diameter Tolerance
H7/h6 fit
Spline Specification
SAE J498 or ISO 4156
Bearing Surface Hardness
58-62 HRC
标准
ISO 4156SAE J498DIN 5480ISO 286-2

行业分类与别名

半轴孔 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

Insufficient lubrication or contamination->Accelerated wear and scoring of bearing surfaces->Implement proper lubrication systems with filtration, use wear-resistant surface treatments, and establish regular maintenance intervals
Improper heat treatment leading to inadequate hardness->Premature spline wear and torque transfer degradation->Implement strict process controls for carburizing and tempering, conduct regular hardness testing, and use statistical process control for heat treatment parameters
Machining errors in diameter or concentricity->Vibration, noise, and accelerated bearing wear during operation->Implement precision machining with in-process gauging, use statistical process control for critical dimensions, and conduct 100% final inspection of key parameters

工业生态与工程逻辑

0
Wear and scoring of bearing surfaces
1
Spline wear leading to torque transfer loss
2
Corrosion in the bore area
3
Fatigue cracking at stress concentration points
4
Improper fit causing vibration or noise

合规与检测

tolerance
Diameter tolerance: H7/h6 fit per ISO 286-2; Concentricity: ≤ 0.05 mm TIR; Surface finish: Ra 0.8-1.6 μm
test method
Coordinate measuring machine (CMM) verification of dimensions; Surface roughness testing per ISO 4287; Hardness testing per ISO 6508; Dye penetrant inspection for surface defects

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 primary function of axle shaft openings in a differential case?

The primary function is to provide precise mounting and torque transfer interfaces between the differential assembly and axle shafts, enabling power transmission to the vehicle's driven wheels while maintaining proper alignment and bearing support.

What materials are commonly used for manufacturing axle shaft openings?

Common materials include forged or cast steel alloys like SAE 4140 or SAE 8620, typically case-hardened to achieve surface hardness of 58-62 HRC for wear resistance while maintaining core toughness.

How are axle shaft openings typically machined?

They are precision-machined using CNC turning and boring operations, followed by broaching or hobbling for spline formation. Heat treatment (carburizing and tempering) is applied, with final grinding or honing to achieve required tolerances and surface finishes.

我可以直接联系工厂吗?

CNFX 是开放目录,不是交易平台或采购代理。工厂资料和表单用于帮助你准备直接沟通。

CNFX Industrial Component Index · 汽车制造

数据基础

CNFX 制造商资料、技术分类、公开产品信息和持续合理性检查。

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。

请求制造能力信息: 半轴孔

说明目标数量、应用场景、交期和关键技术要求,用于准备 RFQ 或供应商评估。

谢谢,信息已发送。
谢谢,信息已收到。

需要制造 半轴孔?

对比具备该组件加工或装配能力的制造商资料。

创建制造商档案 联系我们
上一个组件
半轴
下一个组件
半轴齿轮
URN:CNFX:ME:UNIT:AXLE_SHAFT_OPENINGS