行业组件数据 · 2026

密封垫圈/唇形密封

A sealing gasket or lip seal is a mechanical component designed to prevent fluid leakage between mating surfaces in industrial machinery.

技术定义与适配语境
典型 密封垫圈/唇形密封 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 sealing gasket/lip is a critical sealing component used in industrial sealing systems to create a barrier against the escape or ingress of fluids (liquids or gases) between stationary or moving parts. It functions by filling irregularities between mating surfaces under compression, while lip seals specifically use flexible lips that maintain contact with rotating shafts to prevent leakage.

组件规格

定义
A sealing gasket/lip is a critical sealing component used in industrial sealing systems to create a barrier against the escape or ingress of fluids (liquids or gases) between stationary or moving parts. It functions by filling irregularities between mating surfaces under compression, while lip seals specifically use flexible lips that maintain contact with rotating shafts to prevent leakage.
工作原理
Works through compression (gaskets) or radial lip contact (lip seals) to fill surface imperfections and create a tight seal. Gaskets rely on bolt compression to deform and seal interfaces, while lip seals use spring-loaded flexible lips that maintain constant contact with rotating shafts through controlled interference fit.
材料
Nitrile rubber (NBR)Fluoroelastomer (FKM/Viton)Silicone (VMQ)Ethylene Propylene Diene Monomer (EPDM)Polytetrafluoroethylene (PTFE)Compressed fiberMetal-reinforced composites
Hardness
50-90 Shore A
Compression Set
<25%
Pressure Rating
Up to 100 bar
Temperature Range
-40°C to 200°C
Lip Spring Tension
0.5-2.5 N
Chemical Compatibility
Oil, water, chemicals
标准
ISO 3601DIN 3760ISO 6194SAE J946

行业分类与别名

密封垫圈/唇形密封 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

Improper installation torque->Uneven compression leading to leakage paths->Use calibrated torque wrenches and follow manufacturer specifications
Chemical incompatibility->Material degradation and seal swelling/shrinking->Verify chemical resistance charts and select appropriate material grade
Excessive shaft runout->Lip wear and premature seal failure->Maintain shaft runout within 0.1mm TIR and ensure proper alignment

工业生态与工程逻辑

0
Fluid leakage
1
Contamination ingress
2
Equipment downtime
3
Safety hazards
4
Environmental pollution

合规与检测

tolerance
±0.1mm on critical dimensions, surface finish Ra 0.4-0.8μm for sealing surfaces
test method
Pressure decay testing, helium leak testing, visual inspection per ASTM F37, ISO 188

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 a gasket and a lip seal?

Gaskets seal between stationary surfaces through compression, while lip seals seal between stationary and rotating surfaces using flexible lips that maintain contact with shafts.

How often should sealing gaskets be replaced?

Replacement intervals depend on operating conditions, but typically range from 6 months to 5 years. Factors include temperature, pressure, chemical exposure, and mechanical wear.

What causes premature seal failure?

Common causes include improper installation, excessive temperature, chemical incompatibility, shaft misalignment, surface roughness issues, and incorrect compression.

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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
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URN:CNFX:ME:UNIT:SEALING_GASKET_LIP