Oil Seals, also known as radial oil seals, radial shaft seals or rotary shaft lip seals, are round sealing devices used to seal between two machine parts that rotate relative to each other. They are used to seal lubrication in and/or contamination out, or to separate dissimilar media.
Oil Seal Design
Although there are many styles of Oil Seals, they all generally consist of a flexible rubber lip bonded to a rigid metal case. Most also contain a third element – a garter spring – fitted into the rubber lip to provide additional sealing force, both initially and over the life of the seal. The total radial force of the sealing lip is a function of the rubber pre-tension, coupled with the tensile spring force. The sealing lip may be lathe cut or ready molded, and may feature molded-in hydrodynamic aids to assist sealing in demanding applications. The metal case may be exposed or have rubber molded around it for ease of assembly or improved static sealing.
Trelleborg Sealing Solutions offers state-of-the-art Oil Seal design standards based on many years of experience in a wide range of application fields.
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