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Designs that call for rugged, durable seals might benefit from polyurethane O-rings. That's because polyurethane generally outperforms other elastomeric sealing materials in terms of toughness, abrasion resistance, and extrusion resistance. Polyurethane O-rings handle pressures to 5,000 psi even with a 0.010-in. extrusion gap. The material also resists explosive decompression and handles temperatures from -90 to 225°F.
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Dynamic Seals

Dynamic seals include oil seals, hydraulic and pneumatic seals, exclusion seals, labyrinth seals, bearing isolators, and piston rings. They create a barrier between moving and stationary surfaces in applications such as rotating shafts and pistons rings.  This is a general search form; more detailed search forms are available.

O-rings

O-rings are solid-rubber seals that are shaped like a doughnut. When pressed between two mating surfaces,  O-rings block the passage of liquids or gases.

Round Belts and O-ring Belts

Round belts and o-ring belts are light-to-medium duty power transmission belts. They can be solid or hollow, and can easily be used in 3-D applications.

Solid Elastomeric Rings

Solid elastomeric rings are compression seals of differing cross sections. Some examples are X or multiple rings, rectangular rings, tetraseals, trapezoid rings, T-section rings, delta rings, D-rings, H-rings, heart rings, and diamond rings.

Self-sealing Fasteners

Self-sealing fasteners have an elastomeric insert or captive O-ring that simultaneously provides sealing and locking.

Topics of Interest

Like epoxies, polyurethane reactive adhesives include systems that are available as 100 percent solids or solvent-based and one- or two-part formulations. These adhesives can cure at room or...

Urethaneand polyurethane (PU, PUR) is a diverse class of flexible materials with good abrasion resistance, elongation, recovery and toughness. Often, the terms "urethane and "polyurethane" are used...

Elastomeric compound provides new balance of properties. A new compound combines chemical resistance with low-temperature properties. Xyfluor, developed by Greene, Tweed & Co. (Kulpsville, PA;...

Like few other hostile environments for industrial components, the deep sea is a forbidding place in which to launch a motion control application. Very cold temperatures, the corrosive effects of sea...

Elastomeric face seals or o-rings are flanges or a fitting type that uses an elastomeric face seal such as an o-ring or gasket. Elastomeric seals are not typically suitable for extremely high vacuum...

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