行业组件数据 · 2026

挡圈

Retaining rings are precision-engineered fasteners that secure components on shafts or in housings, preventing axial movement in mechanical assemblies.

技术定义与适配语境
典型 挡圈 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。

Retaining rings, also known as circlips or snap rings, are circular fasteners designed to fit into grooves on shafts or within housings to axially position and secure components such as bearings, gears, and pulleys. They function as shoulder replacements, providing a removable and reusable method for maintaining assembly integrity under rotational and axial loads. Available in internal (housing) and external (shaft) configurations, they are critical for precise component alignment and load distribution in rotating machinery.

组件规格

定义
Retaining rings, also known as circlips or snap rings, are circular fasteners designed to fit into grooves on shafts or within housings to axially position and secure components such as bearings, gears, and pulleys. They function as shoulder replacements, providing a removable and reusable method for maintaining assembly integrity under rotational and axial loads. Available in internal (housing) and external (shaft) configurations, they are critical for precise component alignment and load distribution in rotating machinery.
工作原理
Retaining rings operate by seating securely into a machined groove on a shaft or inside a housing. The ring's elastic deformation during installation allows it to snap into place, creating a rigid shoulder that restricts axial movement of adjacent components. The groove depth and ring cross-section are engineered to withstand thrust loads while maintaining assembly clearance, ensuring components remain fixed during operation without requiring threaded fasteners or adhesives.
材料
Typically made from carbon steel (e.g.SAE 1070/1095)stainless steel (e.g.AISI 302/316)or beryllium copper for corrosion resistance and high strength. Materials are heat-treated to Rockwell hardness C45-C50 for durability and spring propertieswith optional coatings like zinc plating or passivation for environmental protection.
Cross-Section
Rectangular, square, or crescent-shaped
Load Capacity
Up to 10 kN axial thrust
Diameter Range
1 mm to 300 mm
Groove Dimensions
Standardized per ISO/DIN specifications
Temperature Range
-50°C to 250°C
标准
ISO 8750ISO 13337DIN 471DIN 472

行业分类与别名

挡圈 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 groove depth or incorrect ring size->Ring pops out under axial load, causing component misalignment->Verify groove dimensions per standards and use precision measuring tools during installation
Corrosion in harsh environments->Reduced ring strength and seizure in groove->Specify corrosion-resistant materials (e.g., stainless steel) and apply protective coatings

工业生态与工程逻辑

0
Groove wear leading to ring dislodgement
1
Improper installation causing ring deformation
2
Material fatigue under cyclic loads

合规与检测

tolerance
±0.05 mm on ring diameter and groove width per ISO 286
test method
Axial load testing per ISO 8748, salt spray testing per ASTM B117 for corrosion resistance

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 internal and external retaining rings?

Internal rings fit into housings to retain components from the inside, while external rings mount on shafts to secure parts from the outside. Selection depends on assembly design and load direction.

How do I choose the right retaining ring material?

Select carbon steel for general use, stainless steel for corrosive environments, and beryllium copper for non-sparking applications. Consider load, temperature, and exposure conditions.

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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 · 机械和设备制造

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。

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URN:CNFX:ME:UNIT:RETAINING_RINGS