The thesis discusses a teflon based radial shaft seal, the intended use of which is to operate in dry conditions. Because this technology has not yet been reasearched in the company, the decision was made to reasearch and develop a suitable test model. The research is of a practical nature, respectively focused on the validation of the radial shaft seal, for which the test model and test plan diagram were developed. The test plan diagram was used to define procedures and parameters of measurments, in order to ensure suitable in reliable results. Analysis results showed that the radial shaft seal worked as defined by the manufacturer and is thus capable of operating and remaining functional even after enduring different load tests.