PU O-Ring
PU O-Ring
PU O-rings are precision-engineered sealing components made from premium polyurethane elastomer. Designed for demanding industrial, hydraulic, and pneumatic applications, these O-rings provide excellent wear resistance, elasticity, and chemical stability. They are ideal for sealing, cushioning, and vibration damping in machinery and equipment, outperforming traditional rubber or metal O-rings in many applications.
Specifications
- Material: High-quality polyurethane (PU) elastomer
- Form: O-ring / sealing ring
- Inner Diameter (ID): Customizable
- Outer Diameter (OD): Customizable
- Cross-Section / Thickness: Customizable
- Hardness: Multiple Shore A grades available
- Color Options: Standard or custom
- Resistance: Wear, abrasion, chemical, oil, and impact resistant
- Temperature Range: Suitable for hydraulic, pneumatic, and industrial applications
Key Features & Advantages
- Excellent Wear & Abrasion Resistance
Ensures long-lasting sealing performance under repetitive motion - Superior Elasticity & Compression Recovery
Maintains tight seals under pressure and mechanical stress - Chemical & Oil Resistance
Performs reliably in hydraulic fluids, oils, and industrial chemicals - Customizable Dimensions & Hardness
Tailored for OEM machinery, hydraulic systems, or industrial equipment - Durable & Long-Lasting
Reduces maintenance frequency and equipment downtime - Easy Replacement & Installation
Compatible with standard or custom machinery components
Typical Applications
- Hydraulic and pneumatic cylinders
- Industrial machinery and equipment seals
- Automotive and aerospace applications
- OEM replacement for machinery and mechanical assemblies
- Vibration and leakage prevention in moving parts
- Fluid transfer systems and pressurized equipment
Customization & OEM Support
- Custom inner diameter, outer diameter, cross-section, and hardness
- Color options for visual identification or coding
- Small-batch and large-scale OEM production
- Technical support for material selection, design, and performance optimization
FAQ
Q1: What are PU O-rings used for?
They are used as sealing components in hydraulic, pneumatic, and industrial applications to prevent leaks and maintain pressure.
Q2: Can PU O-rings be customized?
Yes, size, hardness, cross-section, and color can all be tailored to meet industrial or OEM requirements.
Q3: Are polyurethane O-rings durable?
Yes, they provide excellent wear resistance, elasticity, and chemical stability for long-lasting performance.
Q4: Can PU O-rings replace rubber or metal O-rings?
Yes, polyurethane O-rings often offer superior wear resistance and compression recovery compared with traditional rubber or metal alternatives.
Q5: What industries commonly use PU O-rings?
Industrial machinery, hydraulic and pneumatic systems, automotive, aerospace, and OEM manufacturing.









