The O-ring is the most widely used type of seal because it requires little installation space and is very easy to fit. It is defined as a closed ring with a circular cross-section, made mainly from an elastic rubber material, known as an elastomer. The size of an O-ring is defined by its inner diameter (Ød1) and cross-section (Ød2).

O-rings are most often made from various types of rubber by vulcanization (cross-linking) of the blank in compression moulds or injection moulds with a seamless surface. With a correctly designed groove and a suitably chosen material, they perform reliably over the long term in both static and dynamic applications within the temperature range permitted for the rubber material concerned.

BOHEMIA SEAL advantages in O-rings:
» the widest stock in the Czech Republic
» our primary supplier is a German O-ring manufacturer that guarantees consistently high product quality
» for less demanding applications we offer more economical O-rings from Asia
» technical support in designing seal housings
» O-ring orders can be combined with orders for other products from the Bohemia Seal range, such as rotary seals, hydraulic and pneumatic seals, flat gaskets, belts, pulleys, chains, sprockets and bearings.