O-rings are one of the simplest and most widely used form of seals as they are affordable, easy to mount and reliable. Our extensive range of o-rings include nitrile, viton and silicone o-rings in metric and imperial sizes, suitable for most applications.

View our o-ring ranges by material type:

  • Nitrile O-Rings

    Our extensive range of nitrile o-rings include metric, imperial and hozelock sizes suitable for most applications.

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  • Viton O-Rings

    We also offer a wide range of highly chemically resistant viton o-rings, available in varying sizes and dimensions.

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  • Silicone O-Rings

    Our range of silicone o-rings are suitable for both freezing and extremely hot environments, and come in various sizes.

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Browse our full o-ring range:

475 products

What are o-rings?

O-Rings, also known as packing seals, are mechanical gaskets created in the shape of an O, which can be placed into a groove and compressed between two or more parts. They were first brought to market way back at the dawn of the 20th century, and even after 120 years of engineering, manufacturing and component innovations o-rings have stayed more or less identical in both form and function.

The materials used in the manufacture of o-rings have become more high-tech over time, but at its core, o-rings remain the beautifully straightforward and reliable solution to a problem that was first brought up more than a century ago.

What are o-rings used for?

Their name, as implied, simply refers to a classic doughnut or torus shape, and they exist purely to create a better, more leak-proof seal between two other components, with the aim usually being to prevent the unwanted escape of gases or liquids. Often used in static or dynamic applications, and they enable both linear and rotary movement, making them ideal for hydraulic cylinder pistons or rotating pump shafts. 

They are the most common seals used in machinery as they are simple, effective, cost-efficient and have a high resilience to pressure. With a wide variety of sizes available, O-rings are the top choice for most engineers on their mechanical projects.

Why buy from Totally Seals?

At Totally Seals we offer a wide variety of o-rings, in various materials, sizes and dimensions, whilst we can also produce them in almost any size, material, colour or hardness. Our years of experience, wealth of knowledge and industry connections enable us to supply you with the perfect o-ring for your requirements.

What’s more, if we have the o-rings in stock we offer same day dispatch (before 2pm) and next day delivery (UK) with Global Shipping Options.

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