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Polyurethane Bushings

Polyurethane Bushings

Improved Suspension, Shock Absorption & Extreme Durability

A urethane bushing acts as an independent plain bearing and is a specialty application for a urethane ring. Unlike most traditional bearings, bushings do not contain any rolling elements. Instead, they act as a protective interface between two parts and dampen the energy transmitted between the two, as the energy is redirected through the bushing.

PSI manufactures polyurethane bushings that offer superior performance to help reduce equipment downtime and overall material costs.

Polyurethane Bushings

Our staff can assist you with urethane bushing design and formulation selection all the way through prototyping to full production.

Available Custom Urethane Bushing Specs

Durometer Hardness

  • 25 Shore OO
  • 40 Shore OO
  • 50 Shore OO
  • 70 Shore OO
  • 20 Shore A to 90 Shore A
  • 50 Shore D to 70 Shore D

Here is a list of our standard durometer specifications and our technical brief, to assist you with choosing the correct material.

Durometer Reference Calculator
Durometer Chart
Select Durometer
Select Hardness
shoe icon

For reference, this hardness is as soft as a Gel Shoe Insole

rubber band

For reference, this hardness is as soft as a Rubber Band

eraser icon

For reference, this hardness is as soft as a Pencil Eraser


For reference, this hardness is as soft as a Tire Tread

shopping cart icon

For reference, this hardness is as soft as a Shopping Cart Wheel

hard hat icon

For reference, this hardness is as soft as a Hard Hat

Application Specific Formulations

  • FDA Dry Food Approved 20A to 85A
  • Static Dissipative material is available in 40A to 85A (other durometers may be available upon request)
  • Dual Durometers

Why Choose Urethane Bushings?

Urethane Bushings vs. Rubber Bushings

Urethane has many benefits over rubber, especially in the consistently high-stress suspension systems in which bushings are often installed.

Urethane tends to have a higher load-bearing capacity, greater tear strength, better compression set, and greater abrasion resistance than rubber. It is also more tolerant of greases, oils, and ozone.

Rubber bushings tend to deteriorate rapidly with age. As rubber bushings become softer and more pliable, they resist the forces placed on them less and less. In a vehicle in particular, this reduced resistance leads to increased movement of suspension components, excessive tire wear, and braking instability. Polyurethane bushings can withstand the elements of the road for the long haul, while rubber bushings can not. When installed in a vehicle, urethane bushings offer more controlled alignment and steering.

Urethane Bushings vs. Metal Bushings

Urethane bushings typically cost and weigh less than their metal counterparts. In some conditions, they run longer in harsh environments and under adverse conditions. Bushings can also be manufactured out of a variety of metals like brass, bronze, or steel.

Common Applications for Urethane Bushings

From consumer applications to urethane suspension bushings for commercial heavy-duty trucking and transportation applications, urethane bushings can be relied on to facilitate movement and provide stability in a wide array of environments. Their formula, size, and durometer are selected based on a combination of factors, including the velocity of the application and the applied load. Urethane bushings are often utilized in vehicle suspension systems, commercial equipment, and heavy-duty trucks. Common applications include:

  • Bump stops
  • Body mounts
  • Torque arms
  • Control arms
  • Hydraulic presses
  • Automation machinery
  • Material handling solutions
  • Hydraulic motors and pumps
  • Trailing arms

Call PSI for a Custom Quote

Call one of our experienced urethane professionals at (800) 888-5156 to get help selecting the right bushing for your needs. You can also conveniently request a quote for any size project online, at any time.

Three Common Bushing Designs

Common names for bushings include solid, sleeve, journal, and plain bearings.

Split Bushing

A split bushing has a cut along its length and does not require a perfectly matched bored component, as it can accommodate some shaft size changes without having to be replaced or retooled.

Clenched Bushing

Similar to a split bushing, a clenched bushing features a clench (tight grip) across the cut.

Solid Bushing

A solid bushing can be sleeved or flanged. This bushing features a seamless, smooth surface and is solid all the way around.

Industries Utilizing Urethane Product

Many industries rely on urethane product for their needs, including:

See How We Serve Your Industry

Ask Our Experts.

Contact us today to learn how we can meet your project’s requirements.