Urethane O-Rings
Urethane O-Rings
Urethane O-rings, also known as polyurethane O-rings, are sealing rings made from polyurethane elastomers. They are widely used in various industries due to their excellent mechanical properties, including high abrasion resistance, good tensile strength, and resistance to many chemicals.
Key Characteristics
Abrasion Resistance
Urethane O-rings are highly resistant to wear and abrasion, making them suitable for applications with high friction or where they are exposed to abrasive materials.
Tensile Strength
They possess high tensile strength, which allows them to maintain integrity under high pressure and load conditions.
Elasticity
Urethane O-rings offer good elasticity, enabling them to provide an effective seal even in dynamic applications where movement is involved.
Chemical Resistance
These O-rings are resistant to many oils, greases, and solvents, although they may not be suitable for strong acids, bases, or certain organic solvents.
Temperature Range
Urethane O-rings typically perform well within a moderate temperature range, though extreme temperatures can affect their performance.
Durability
Due to their robust material properties, urethane O-rings have a long service life and can withstand harsh operating conditions better than many other elastomer types.
A Guide for Calculating O-ring Gland Fill
Are you struggling to ensure a proper seal with your O-ring installations? Understanding gland fill is crucial for achieving effective sealing performance. In this quick tutorial, we'll walk you through the steps to calculate gland fill for your O-ring...
Products & Resources
R. E. Purvis & Associates, Inc. is a recognized Sealing Technology Center for Parker's EPS (Engineered Polymer Systems) Division. Parker's EPS Division is a premier manufacturer of hydraulic seals which offers many geometric sealing profiles along with a vast selection of material options.