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.
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
- 25 Shore OO
- 40 Shore OO
- 50 Shore OO
- 20 Shore A to 90 Shore A
- 50 Shore D to 70 Shore D
Durometer Reference Calculator
For reference, this hardness is as soft as a Gel Shoe Insole
For reference, this hardness is as soft as a Rubber Band
For reference, this hardness is as soft as a Pencil Eraser
For reference, this hardness is as soft as a Tire Tread
For reference, this hardness is as soft as a Shopping Cart Wheel
For reference, this hardness is as soft as a Hard Hat
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
- Strut rods
- Sway bars
- End links
- Trailing arms
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Three Common Bushing Designs
Common names for bushings include solid, sleeve, journal, and plain bearings.
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.
Similar to a split bushing, a clenched bushing features a clench (tight grip) across the cut.
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:
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Contact us today to learn how we can meet your project’s requirements.