行业组件数据 · 2026

联轴器螺母

A threaded fastener used to connect two shafts or components in coupling mechanisms for torque transmission.

技术定义与适配语境
典型 联轴器螺母 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 coupling nut is a cylindrical fastener with internal threading designed to join two externally threaded rods, shafts, or components end-to-end. It serves as a critical component in coupling mechanisms, providing a secure mechanical connection that transmits torque, rotational motion, and axial loads between connected elements while maintaining alignment and allowing for adjustable length or tension in the assembly.

组件规格

定义
A coupling nut is a cylindrical fastener with internal threading designed to join two externally threaded rods, shafts, or components end-to-end. It serves as a critical component in coupling mechanisms, providing a secure mechanical connection that transmits torque, rotational motion, and axial loads between connected elements while maintaining alignment and allowing for adjustable length or tension in the assembly.
工作原理
The coupling nut operates on the principle of threaded engagement, where its internal threads mate with external threads on two separate components. When tightened, it creates a clamping force that securely joins the components, enabling torque transmission through friction and mechanical interlock. The nut distributes loads evenly across the threaded interface, preventing separation under operational stresses while allowing for disassembly when required.
材料
Typically manufactured from carbon steel (Grade 5 or 8)alloy steel (41404340)stainless steel (304316)or brass. Materials are selected based on strength requirementscorrosion resistanceand environmental conditions. Common specifications include ASTM A193 for alloy steelASTM A276 for stainless steeland SAE J429 for carbon steel grades.
Length
20mm to 200mm (varies with application)
Hardness
HRC 22-35 for steel variants
Thread Size
M6 to M64 or equivalent imperial sizes
Thread Pitch
Standard coarse or fine threads
Surface Finish
Zinc-plated, hot-dip galvanized, or plain
Tensile Strength
400 MPa to 1200 MPa depending on material
标准
ISO 4032DIN 6334ASME B18.2.2ANSI B1.1

行业分类与别名

联轴器螺母 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

Incorrect torque application during installation->Thread stripping or nut cracking->Use calibrated torque wrenches and follow manufacturer specifications
Exposure to corrosive chemicals or moisture->Corrosion leading to weakened structural integrity->Select corrosion-resistant materials (e.g., stainless steel) or apply protective coatings
Misalignment of connected shafts->Uneven wear and premature failure->Ensure precise alignment during assembly and use alignment tools

工业生态与工程逻辑

0
Thread stripping due to over-torquing
1
Corrosion in harsh environments
2
Misalignment causing uneven load distribution
3
Fatigue failure under cyclic loading

合规与检测

tolerance
Thread tolerance per ISO 965-1 (6g for internal threads), dimensional tolerance per ISO 2768-m
test method
Torque testing per ASTM F606, tensile testing per ASTM A370, corrosion resistance testing per ASTM B117

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 a coupling nut?

To securely join two threaded rods or shafts end-to-end, enabling torque transmission and maintaining alignment in mechanical systems.

How do you select the right coupling nut material?

Choose based on application requirements: carbon steel for general use, alloy steel for high strength, stainless steel for corrosion resistance, and brass for non-sparking environments.

Can coupling nuts be reused?

Yes, if undamaged and threads are intact, but inspect for wear, corrosion, or deformation before reuse to ensure reliability.

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CNFX Industrial Component Index · 机械和设备制造

数据基础

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初步技术归类
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URN:CNFX:ME:UNIT:COUPLING_NUT