Polyurethane Washers
Polyurethane washers—also known as urethane or PU washers—are engineered for industrial reliability and long service life. Combining exceptional elasticity, abrasion resistance, and chemical stability, they outperform traditional rubber or metal washers in demanding environments.
Lisen specializes in manufacturing custom polyurethane washers, tailored to your exact specifications. Whether you need vibration control, cushioning, or sealing for unique industrial or mechanical designs, our washers provide reliable, high-performance solutions for OEMs and engineering teams.
High-Performance Polyurethane & Urethane Washers
Durable polyurethane washers provide cushioning, vibration damping, and load distribution in industrial assemblies. Their wear resistance, chemical stability, and elasticity reduce maintenance, protect equipment, and extend machinery lifespan.
Polyurethane Flat Washers
Evenly distribute loads across mechanical joints, resist compression and wear, and maintain reliable performance under high-stress conditions. Urethane flat washers are ideal for use in high-impact environments, offering excellent durability and performance.
Polyurethane Sealing Washers
Flexible and durable, these washers create effective seals in hydraulic, pneumatic, and mechanical systems. Urethane seal washers resist oils, chemicals, and temperature fluctuations, providing leak-proof protection and enhanced performance in demanding environments.
Polyurethane Cushion Washers
Absorb vibration and prevent metal-to-metal contact, ensuring quieter operation and reducing wear in machinery. Polyurethane cushion washers are perfect for applications where impact protection and vibration control are crucial for equipment longevity.
Polyurethane Shock-Absorbing Washers
Dissipate shock and protect sensitive components from sudden impacts. Ideal for conveyors, heavy machinery, and assembly systems, polyurethane shock-absorbing washers help reduce mechanical stress and prevent damage in high-impact environments.
Polyurethane Vibration-Damping Washers
Minimize noise and mechanical stress in rotating or vibrating machinery. These polyurethane vibration-damping washers enhance operational stability and reduce wear on critical components, ensuring smooth and efficient performance in industrial settings.
Polyurethane Washer Gaskets
Provide both sealing and cushioning, ensuring long-lasting protection against leaks in industrial pipelines and machinery. Polyurethane washer gaskets are resistant to harsh chemicals, temperature extremes, and environmental degradation, offering reliable sealing performance.
Benefits of PU Washers
- High Wear Resistance: Maintains performance under continuous mechanical stress, reducing downtime and replacement costs.
- Excellent Elasticity: Recovers shape under load for consistent sealing and cushioning.
- Chemical & Oil Resistance: Suitable for harsh industrial environments.
- Shock & Vibration Absorption: Protects machinery and extends equipment life.
- Custom Hardness (Shore A 60–98): Tailored to operational requirements for precision load management.
Application of Industrial Polyurethane Washer
- Industrial machinery & mechanical assemblies;
- Pumps, valves, and hydraulic systems;
- OEM components and industrial equipment;
- Automotive, mining, and electronics;
- Vibration control and load-bearing interfaces.
Custom Industrial Polyurethane Washer Solutions
Tailored to meet your design and application requirements, our custom polyurethane washers are perfect for specialized load-bearing solutions. Whether you need enhanced vibration damping or sealing, these washers are ideal for precision applications in industries such as automotive, machinery, and OEM assemblies.
Engineered for high-load applications, cast polyurethane washers offer exceptional durability, dimensional stability, and resistance to continuous mechanical stress. Ideal for hydraulic systems, heavy machinery, and demanding industrial environments, they ensure long-lasting performance under rigorous conditions.
Molded polyurethane washers provide consistent hardness and compression resistance, making them a preferred choice for high-volume production in automotive, machinery, and industrial components. These washers are designed for precision and reliability, ensuring excellent wear resistance and performance over time.
Our polyurethane spacer washers are designed to maintain accurate spacing and alignment between mechanical components. In addition to their structural function, they absorb vibration and mechanical impact, enhancing operational stability in assembly lines, conveyors, and other industrial systems.
Built to withstand the demands of heavy-duty applications, industrial polyurethane washers offer unmatched wear resistance, shock absorption, and load-bearing capacity. They excel in vibration damping and sealing, outperforming traditional rubber or plastic washers in critical industrial applications.
- Product Specifications
- Gallery
| Property / Specification | Typical Range / Value | Performance Description |
| Hardness (Shore A) | 60–98 A | Adjustable hardness to match required load-bearing strength |
| Tensile Strength | 8–55 MPa | High strength for load and stress endurance |
| Elongation at Break | 400%–650% | Excellent flexibility and recovery |
| Tear Strength | 35–155 kN/m | Resists tearing and edge degradation under compression |
| Compression Set (22h × 70°C) | <10% | Retains shape after repeated compression |
| Density | 1.20–1.28 g/cm³ | Stable under mechanical and environmental stress |
| Elastic Impact Recovery | >25% | Ensures energy absorption and rebound |
| Abrasion Loss (Akron Test) | <0.05 cm³ / 1.61 km | Outstanding wear resistance for extended service life |
| Operating Temperature Range | -40°C to +120°C | Suitable for most industrial and mechanical environments |
| Outer Diameter (OD) | 5 mm – 500 mm (customizable) | Flexible sizing for mechanical and industrial applications |
| Inner Diameter (ID) | Per shaft or bolt dimension | Matches exact component requirements |
| Thickness | 1 mm – 50 mm or customized | Flexible to meet design and performance needs |
| Tolerance | ±0.05 mm to ±0.2 mm | Precision control based on size and material |
| Shape | Flat, stepped, tapered, or special-shaped | Per drawing or sample for specific applications |
| Color | Yellow, red, green, black, transparent, or custom | Options to match branding or visual identification |
| Finish | Smooth, matte, or polished | Functional or aesthetic surface options |
Material Options of Urethane Washer:
Polyurethane (PU / TPU / Urethane Elastomer), Cast Polyurethane (CPU), Thermoplastic Polyurethane (TPU), optional CSM, NBR, NR, SBR, or Nylon blends.Functional Types of Polyurethane (PU) Washer:
- Flat Washers;
- Sealing Washers;
- Cushion Washers;
- Shock-Absorbing Washers
- Spacer Washers
Urethane Washers
PU Washer
Urethane Flat Washers
Urethane Seal Washers
Molded Urethane Washers
Cast Urethane Washer
Urethane Spacer Washers
Industrial Urethane Washer
Related Products
Why Choose Custom & Industrial Polyurethane Washers?
- Fully customizable in size, hardness, and shape;
- Available in cast or molded forms for precision and durability;
- Can integrate with metal, rubber, or nylon inserts for hybrid solutions;
- Suitable for bulk production with consistent quality;
- OEM and ODM services for specialized industrial requirements.
Contact our sales team to discuss custom polyurethane washer, or provide us with your PDF drawings and quantity so we can quickly provide you with a price quote.
What are polyurethane washers and how do they differ from rubber ones?
Polyurethane washers are high‑performance elastomer discs used for load distribution, sealing, vibration damping or spacing. They outperform rubber washers in tear and abrasion resistance, load capacity and resilience, offering longer service life.
What key material properties should I look for when selecting a polyurethane washer?
Important criteria include hardness (durometer), tensile strength, elongation, tear resistance, compression set and chemical resistance. These determine load‑bearing capacity, durability and operational stability.
Are polyurethane washers suitable for harsh chemical or oil‑exposed environments?
Yes. Properly formulated polyurethane washers can resist oils, chemicals, water and weathering, and maintain performance in industrial or outdoor conditions.
How do I decide the correct hardness (Shore A) for my polyurethane washer?
Select hardness based on load conditions, compression amount, and movement. Softer grades (lower Shore A) provide more flexibility; harder grades support heavier loads and preserve shape under pressure.
Are polyurethane washers compatible with metal fasteners or shafts without damaging them?
Yes. Polyurethane washers offer a non‑marring surface, good shock absorption, and resist abrasion of mating metal parts—helping protect both the washer and the hardware.
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