Rubber o-rings

This mechanical gasket is formed of a loop with a round cross-section which would usually sit in an indentation and be compressed between two or more parts at time of machine assembly, returning to its natural shape once the cross-section is compressed to create an effective seal.

Also known as a toric joint owing to its shape or an elastomeric o-ring seal owing to its function, the rubber o-ring is reliable and easy to use. Though it can be used for static applications, the o-ring’s ability to seal a good amount of pressure makes it the ideal choice for dynamic applications with swivelling joints such as hydraulic cylinder pistons.
Many aircraft manufacturers use o-rings as seals in hydraulic systems for brakes, as well as wing flaps and landing gear. Most o-rings are made out of synthetic rubber that has been designed to withstand the high temperatures and extreme conditions of aerospace applications, which is why they are used in aircraft and even space shuttles.
Hydraulic rescue tools, which rescue people trapped in vehicles after crashes, and medical devices such as IV and implant components also need o-rings to work. O-rings designed for hygiene-critical environments are typically made from special medical-grade rubber that has heat-resistant and chemical-resistant properties to prevent cracking, bacteria and toxicity.
Southbourne Rubber stocks standard metric sizes to BS1806, ISO 3601 and BS4518 standards so that your o-ring needs can be fulfilled and shipped immediately. Whether you need silicone rubber o-rings or fluoroelastomer o-rings [Materials], we also make non-standard o-rings and custom o-rings to your exact requirements.