Walther Simmer developed the Simmerring^® in 1929. Since then, the original radial shaft seal has undergone many developments. Today, the Simmerring is a versatile, flexible high-tech product which can be used on a modular basis.

The Simmerring spectrum of products from Simrit is the leading one in the world. It is made up a comprehensive standard range with more than 3500 variants in various materials. Customer-specific solutions are also available to meet individual requirements and for special applications.

The Simmerring is used for sealing rotary shafts, primarily in general mechanical engineering, in agricultural and construction machinery, in power transmission engineering, in electrical engineering and in wind power plants.

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