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Premium polyurethane bushings with high wear resistance, vibration damping, and long service life. Custom sizes, hardness (Shore A/D), and formulations for automotive suspension, industrial machinery, and heavy-duty applications.
Product OverviewPolyurethane (PU) bushings are precision-engineered elastomeric components designed to replace rubber or metal bushings in dynamic systems. Molded from high-grade polyether/polyester polyurethane, they deliver superior durability, load-bearing capacity, and chemical resistance while effectively isolating vibration, reducing noise, and maintaining structural alignment. Ideal for automotive suspension, industrial machinery, mining equipment, and marine applications, our PU bushings outlast rubber by 3–5 times and perform reliably under extreme conditions. |  |
· Exceptional Durability: Resists wear, tear, cracking, and aging; lifespan 3–5× longer than rubber.
· High Load Capacity: Withstands heavy static/dynamic loads without permanent deformation.
· Vibration & Noise Reduction: Excellent elasticity absorbs shocks and minimizes operational noise.
· Chemical & Oil Resistance: Unaffected by oils, lubricants, fuels, and mild acids.
· Wide Temperature Tolerance: Operates reliably from -40°C to +80°C (peaks to 100°C).
· Precision Fit: Tight dimensional tolerances (±0.05mm machined) ensure easy installation.
· Low Maintenance: Self-lubricating options available; no regular lubrication required.
· Customizable: Tailored sizes, hardness, colors, and formulations for specific applications.
Technical Specifications
Parameter | Value | Test Standard |
Material | Polyether/Polyester Polyurethane | – |
Density | 1.15–1.20 g/cm³ | ASTM D792 |
Hardness (Durometer) | 25 Shore OO – 90 Shore A; 50–75 Shore D | ASTM D2240 |
Tensile Strength | 20–50 MPa | ASTM D412 |
Ultimate Elongation | 300%–600% | ASTM D412 |
Compression Set | 20%–35% (Method B) | ASTM D395 |
Tear Strength | 50–120 kN/m | ASTM D624 |
Parameter | Details | |
Inner Diameter (ID) | 10–150 mm (customizable) | |
Outer Diameter (OD) | 20–200 mm (customizable) | |
Length | 10–300 mm (customizable) | |
Dimensional Tolerance | ±0.15mm (molded); ±0.05mm (machined) | ISO 3302-1 Class M2/M1 |
Operating Temperature | -40°C to +80°C (continuous); up to 100°C (intermittent) | |
Speed Rating | Up to 3000 rpm (depending on size/load) | |
Color Options | Black, blue, red, yellow, orange (custom) | |
Installation | Press fit; bonded metal sleeves optional |
· Polyether PU: Superior hydrolysis resistance; ideal for wet/marine environments.
· Polyester PU: Excellent abrasion/chemical resistance; best for heavy-duty industrial use.
· FDA-Grade PU: Compliant with FDA 21 CFR; suitable for food contact applications.
· Static Dissipative PU: Anti-static properties for electronics/explosive environments.
· Automotive: Suspension control arms, sway bars, leaf springs, chassis mounts (street/race/off-road).
· Industrial Machinery: Conveyors, pumps, motors, compressors, and vibration isolators.
· Heavy Equipment: Mining, construction, and agricultural machinery (excavators, bulldozers, tractors).
· Marine: Engine mounts, propeller shaft supports, and deck vibration dampeners.
· Railroad: Suspension components and vibration damping systems.
· OEM Replacement: Direct replacement for rubber bushings in various equipment.
Feature | Polyurethane Bushings | Rubber Bushings |
Lifespan | 3–5× longer | Shorter (prone to aging/cracking) |
Durability | High (resists wear/tear) | Low (degrades under stress) |
Oil/Chemical Resistance | Excellent | Poor (swells/deteriorates) |
Temperature Range | -40°C to +80°C | -20°C to +60°C (narrower) |
Load Capacity | High | Low (deforms under heavy loads) |
Maintenance | Low (self-lubricating options) | High (requires regular lubrication) |
As a professional PU bushing manufacturer, we offer one-stop custom solutions:
· Custom design based on drawings/samples.
· Multiple hardness options (25 Shore OO to 90 Shore A).
· Precision CNC machining for tight tolerances.
· Bonded metal sleeves (steel/aluminum) available.
· Small-batch prototyping to mass production.
· Premium Quality: Made from 100% virgin polyurethane; strict quality control (ISO 9001).
· Competitive Pricing: Factory-direct pricing with no middlemen.
· Fast Delivery: 1–2 weeks for standard orders; expedited shipping available.
· Expert Support: Professional engineering team provides technical guidance.
For custom polyurethane bushing quotes or technical support, contact our team today. We provide free samples and design assistance to meet your specific requirements.
