行业组件数据 · 2026

杆端关节轴承

A spherical bearing component that connects piston rods to machinery, allowing angular movement while transmitting force.

技术定义与适配语境
典型 杆端关节轴承 会按材料、尺寸公差、适配关系和失效风险在 机械和设备制造 中评估。

A rod end is a mechanical joint component featuring a spherical bearing within a housing, designed to connect piston rods or linkages to other machine elements. It accommodates misalignment and angular movement through its spherical bearing design while transmitting axial and radial loads. The component typically consists of an outer housing with a threaded shank and an inner spherical bearing race that rotates and articulates, providing smooth motion transfer in hydraulic, pneumatic, and mechanical systems.

组件规格

定义
A rod end is a mechanical joint component featuring a spherical bearing within a housing, designed to connect piston rods or linkages to other machine elements. It accommodates misalignment and angular movement through its spherical bearing design while transmitting axial and radial loads. The component typically consists of an outer housing with a threaded shank and an inner spherical bearing race that rotates and articulates, providing smooth motion transfer in hydraulic, pneumatic, and mechanical systems.
工作原理
The rod end operates on the principle of spherical articulation, where a ball-shaped bearing surface rotates within a matching spherical housing. This allows the connected rod to pivot and swivel while maintaining load transmission capability. The spherical bearing design accommodates angular misalignment up to ±10-15 degrees, reducing stress concentrations and wear on connected components. Lubrication channels or self-lubricating materials minimize friction during articulation.
材料
Housing: Carbon steel (AISI 1045/4140)stainless steel (AISI 304/316)or aluminum alloy (6061-T6). Bearing: Chrome steel (GCR15)bronze (C93200)or PTFE-lined composite. Threads: Rolled threads for strength (UNF or metric). Surface treatment: Zinc platingblack oxideor hard chrome coating for corrosion resistance.
Thread Size
M6-M30 or 1/4"-1 1/4"
Bore Diameter
6-50 mm
Load Capacity
5-200 kN static, 2-80 kN dynamic
Lubrication Type
Grease fitting or self-lubricating
Temperature Range
-40°C to +120°C
Angular Misalignment
±10° to ±15°
标准
ISO 12240-1DIN 648SAE AS81934

行业分类与别名

杆端关节轴承 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->Increased friction leading to bearing seizure->Implement regular lubrication schedule; use self-lubricating materials
Angular misalignment beyond design limits->Premature bearing wear and housing cracking->Install misalignment limiters; select higher-angle rod ends
Corrosive environment exposure->Material degradation and loss of structural integrity->Specify stainless steel or coated materials; implement protective covers

工业生态与工程逻辑

0
Bearing seizure due to contamination
1
Thread stripping from over-torquing
2
Fatigue failure from cyclic loading
3
Corrosion in harsh environments

合规与检测

tolerance
Bore diameter: H7 tolerance; Threads: 6g/6H tolerance per ISO 965
test method
Radial play test per ISO 12240-4; Load testing per ASTM F3142; Salt spray test per ASTM B117 for corrosion resistance

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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 male and female rod ends?

Male rod ends have external threads on the shank, while female rod ends have internal threads. Male types connect directly to threaded rods, while female types accept threaded bolts or studs.

How often should rod ends be lubricated?

Grease-lubricated rod ends require lubrication every 500-1000 operating hours or as specified by the manufacturer. Self-lubricating types typically require no maintenance.

Can rod ends handle both radial and axial loads?

Yes, most industrial rod ends are designed to handle combined radial and axial loads, with specific load ratings provided by manufacturers for each direction.

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CNFX Industrial Component Index · 机械和设备制造

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初步技术归类
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