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O-ring seal

O-ring seal
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What is an O-ring?

An O-ring is a toroidal-shaped seal. This is a technical term to explain that this part is a geometric solid in the shape of a tube bent back on itself. This product is also known as an o-ring. It is a rubber gasket that provides an excellent seal on metal fittings in both static and dynamic applications. They are used in a multitude of applications including pumps and motors, valves and taps, tanks and hoses, laboratory equipment, pressure vessels, medical equipment, etc.

What material should I choose for O-rings?

These products are made of different materials. The three main materials are NBR (butadiene rubber), EPDM (ethylene rubber), and FPM (fluorinated rubber).

  • The NBR (NITRILE) material is mainly used for contact with oils and hydrocarbons from -40 °C to +110 °C. This model is also compatible with water.
  • The FPM material can also be in contact with oils and hydrocarbons. It is more suitable for high-temperature applications as it can withstand temperatures from -20 °C to +200 °C.
  • EPDM is often used for contact with mineral brake fluid and water. In terms of temperature, it can withstand from -50 °C to +150 °C.

How do you identify the o-ring you need?

There are different criteria to consider when choosing these seals for a given application: temperature, pressure, type of fluid, and type of material.

Today, o-rings are indispensable in many applications. They provide unparalleled sealing and durability. To choose the right O-ring for your needs, it is important to take into account the different criteria mentioned above.

To identify this product, it is necessary to take its dimensions. The measurement of the internal diameter and the diameter of the torus (thickness) are the two elements that will allow its identification. To be as precise as possible, it is necessary to take these dimensions with a caliper.

Why order from 123Bearing?

123Bearing offers a wide range of seals to meet all needs. Our products are available in several materials and sizes to provide you with the ideal seals for your application. Need advice? Our team of experts is available to provide advice and help you choose the right gasket for your needs at competitive prices. Do you have a short deadline to meet? Thanks to our large stock, we also offer express delivery to allow you to have the products the next day at the desired address (in France).

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