行业组件数据 · 2026

锁紧螺母

A specialized nut designed to secure threaded components against vibration-induced loosening in adjustable leveling foot assemblies.

技术定义与适配语境
典型 锁紧螺母 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 locking nut is a precision-engineered fastener used in adjustable leveling foot assemblies to prevent unintended rotation or loosening due to dynamic loads, vibrations, or thermal cycling. It typically features a self-locking mechanism, such as a nylon insert, deformed threads, or a prevailing torque design, that creates friction or mechanical interference to maintain clamping force without requiring secondary locking devices like washers or adhesives.

组件规格

定义
A locking nut is a precision-engineered fastener used in adjustable leveling foot assemblies to prevent unintended rotation or loosening due to dynamic loads, vibrations, or thermal cycling. It typically features a self-locking mechanism, such as a nylon insert, deformed threads, or a prevailing torque design, that creates friction or mechanical interference to maintain clamping force without requiring secondary locking devices like washers or adhesives.
工作原理
The locking nut operates on the principle of controlled friction or mechanical deformation. When threaded onto a bolt or stud, its internal features (e.g., nylon ring, elliptical top, or slotted crown) create radial pressure or thread distortion, increasing the torque required for rotation. This resistance prevents back-off under operational stresses, ensuring the leveling foot remains securely positioned to maintain machine alignment and stability.
材料
Common materials include medium-carbon steel (grade 5 or 8)stainless steel (AISI 304/316)or alloy steeloften with zinc platinghot-dip galvanizingor dichromate coatings for corrosion resistance. Nylon inserts are typically polyamide-based.
Height
8-20 mm
Thread Size
M8 to M20
Locking Type
Nylon insert
Torque Range
15-120 Nm
Temperature Range
-40°C to +120°C
标准
ISO 7042DIN 985

行业分类与别名

锁紧螺母 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

Insufficient torque during installation->Nut loosens, causing machine misalignment and instability->Use calibrated torque wrenches and follow manufacturer specs
Exposure to temperatures beyond nylon insert limits->Insert degrades, losing locking capability->Select all-metal locking nuts for high-temperature applications

工业生态与工程逻辑

0
Over-torquing can strip threads or damage the locking mechanism
1
Incorrect material selection may lead to corrosion in harsh environments
2
Reuse beyond limits reduces locking effectiveness

合规与检测

tolerance
Thread tolerance per ISO 965-1 medium class; locking torque meets ISO 2320
test method
Vibration testing per DIN 65151, torque-tension testing per ISO 16047

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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

How does a locking nut differ from a standard nut?

A locking nut incorporates design features like nylon inserts or deformed threads to resist loosening from vibration, while standard nuts rely solely on thread friction and may require lock washers.

Can locking nuts be reused?

Nylon insert locking nuts are generally limited to 5-10 reuses due to insert wear; all-metal prevailing torque nuts may allow more reuses if torque values remain within specifications.

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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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URN:CNFX:ME:UNIT:LOCKING_NUT