Supersoft Urethane Bushings

Low creep rate compared to other polymers  (rubber, neoprene, silicone etc.)  Superior damping coefficient over a very wide temperature range. Can absorb shock efficiently for millions of cycles. Temperature Ranges: -15°C to 98°C.

Bushings can isolate vibration and absorb shock.

This material is a soft visco-elastic polymer. Visco-elastic means that a material exhibits properties of both liquids (viscous solutions) and solids (elastic materials).

It has the properties of a thermoset, polyether-based, polyurethane material. The material combines shock absorbtion, good memory, vibration isolation and vibration damping characteristics.  In addition it is a very effective acoustic damper and absorber. While many materials exhibit one of these characteristics, it combines all of them in a stable material with a long fatigue life.

Using two bushings together or a bushing and washer(s), you can create a floating bolt that isolates the unit from any metal-to-metal contact.
Different shores allow for different spring rates. Load ratings assume a 10% - 20% deflection of the material. This deflection is achieved by a combination of system weight and torquing of the connecting bolts.

Do not over torque the bolts as this defeats the intended vibration isolation and shortens bushing life. Use a high-quality (thread deforming) lock nut or doubled jam nuts to prevent vibration from loosening the bolt.

Unlike other products, bushings may be used in tension connections.

To order: Specify part number, shore, quantity & colour. Colour black is standard. 
Other colours and dimensions are available to special order.

Material Properties:

* Reduced strength and damping up to 120C. Increased spring rate down to glass transition temperature.
** Underwriters Laboratory 94 Compatibility.
*** Modified for the effects of material tack.
^ At 50 hertz. Transmission loss increases with frequency.