A polyurethane O-ring is a sealing element made using a polyurethane material that has a unique set of performance characteristics that make it very popular for specific industrial applications. Below is a detailed description of polyurethane O-rings:

Wat is the PU O-rings Material Properties ?

• HIGH STRENGTH AND ABRASION RESISTANCE: Polyurethanes have high mechanical strength and excellent abrasion resistance, which enables polyurethane O-rings to maintain good sealing performance in environments with high pressure and frequent movement.
• Good elasticity: Polyurethanes have good elastic recovery, which allows them to maintain their shape and sealing effect even after prolonged compression.
• Oil and solvent resistance: polyurethanes have good resistance to a wide range of oils and chemical solvents and are suitable for use in oily and chemical media.
• Aging resistance: polyurethane materials have good aging resistance, can be used for a long time in outdoor or high-temperature environment without easy aging.
• Temperature resistance: The temperature range of polyurethane O-rings is usually between -30°C and +90°C, but in some special formulations the temperature range can be wider.

Wher is the Areas of application ?

• Polyurethane O-rings are widely used in automotive, hydraulic systems, pneumatic tools, agricultural machinery, construction machinery, food processing equipment and other fields.
• They are particularly suitable for use in applications requiring high wear resistance and high strength, such as piston seals, rod seals, valve seals, etc.

Which is the Sizes and Standards ?

• The dimensions of polyurethane O-rings can be customized according to international standards (e.g. ISO 3601) or specific customer requirements.
• They can be produced in a wide range of I.D., O.D., and cross-sectional diameter sizes to suit different sealing needs.

How is the Installation and Maintenance ?

• Installation of polyurethane O-rings is relatively simple, but care should be taken to avoid scratching or twisting to ensure their sealing performance.
• For maintenance, O-rings should be checked regularly for wear and replaced as needed.

Our CBD Seals Customized service:

Many manufacturers offer customization services to tailor polyurethane O-rings to specific customer needs, including special sizes, colors, hardnesses, and more.

What should we pay attention to? 

• When selecting polyurethane O-rings, the specific conditions of the application, such as operating temperature, pressure, and type of media, should be considered to ensure that the proper material and specifications are selected.
• Because of the relatively high cost of polyurethane materials, there may be a trade-off between performance and cost in cost-sensitive applications.