Trelleborg Sealing Solutions Germany GmbH O-Rings

O-Rings are the most widely used seals because they are efficient and economical and can be used in a wide variety of static and dynamic applications. O-Rings can be used to seal practically all liquid and gaseous media and they are available in elastomeric and other materials including EPDM, FKM and NBR, among others. O-Rings offer the designer an efficient and economical sealing element for a wide range of static or dynamic applications. Inexpensive production methods and its ease of use have made the O-Ring the most widely used seal. A wide choice of elastomer materials for both standard and special application allow the ORing to be used to seal practically all liquid and gaseous media. O-Rings are vulcanized in molds and are characterized by their circular form with annular cross section. The dimensions of the O-Ring are defined by the inside diameter d1 and cross section d2. Cross sections of approximately 1.0 to 10 mm and inside diameters up to 810 mm are available. O-Rings are used as sealing elements or as energizing elements for hydraulic slipper seals and wipers and thus cover a large number of fields of application. There are no fields of industry where the O-Ring is not used. From an individual seal for repairs or maintenance to a quality assured applications in general engineering. The O-ring is used predominantly for static sealing applications: - As a radial static seal, e.g. for bushings, covers, pipes, cylinders. - As an axial static seal, e.g. for flanges, plates, caps. O-Rings in dynamic applications are recommended only for moderate service conditions. They are limited by the speed and the pressure against which they are to seal: - For low duty sealing of reciprocating pistons, rods, plungers etc. - For sealing of slowly pivoting, rotating or spiral movements on shafts, spindles, rotary transmission leadthroughs, etc.