SKF launches innovative new seal at InnoTrans 2016

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    2016 September 22, 13:00 CEST

    SKF is using the InnoTrans 2016 trade fair (Berlin, 20 - 23 September) to introduce its ground-breaking SKF Centrifugal Lip Seal, which is designed to save energy, improve performance and extend maintenance intervals in high speed rail applications.

    Gothenburg, Sweden, 21 September, 2016: SKF has launched a revolutionary new seal that has been developed to save energy and cut maintenance requirements in high speed passenger rail applications. Introduced to the market for the first time at InnoTrans 2016, the SKF Centrifugal Lip Seal features an innovative design that offers a unique combination of both contacting and non-contacting sealing on wheel set bearing units in one product.

    The sophisticated seal allows for an optimised friction pattern throughout the operation cycle of high speed trains. It incorporates a lip that is closed when the vehicle is travelling at low start and stop speeds to effectively exclude contamination from the bearing. When the speed is increased and the centrifugal force reaches a certain limit the lip opens and it becomes an almost zero friction seal, while the same centrifugal force prevents the ingress of pollution.

    This intelligent two-seals-in-one design balances the trade-off between sealing function and friction torque, eliminating the need for a compromise on either. As a result, the unit can operate at a low temperature and extended maintenance intervals can be realised to cut the cost of servicing and improve the reliability of the application through cleaner grease. The significantly enhanced efficiency and energy savings can also lead to a reduction in the environmental impact of high speed rail.

    “The SKF Centrifugal Lip Seal has been developed specifically to overcome the traditional sealing quandary manufacturers face with high speed train wheel set bearing units,” Maurizio Martinetti, Senior Project Manager at SKF Product Development, said. “No lip contact at low speeds meant there was a risk of contamination, while contact at high speeds led to energy-consuming friction and its other associated problems, such as excessive operating temperatures and the need for frequent maintenance. However, this new seal eliminates all of these issues for consistently efficient and high performance operation.”

    See SKF at InnoTrans 2016: Hall 22, booth 606

    For more information about SKF’s solutions for the railway industry, please visit:

    Aktiebolaget SKF

    For further information, please contact:
    Press Relations: Nia Kihlström, +46 31-337 2897; +46 706 67 28 97;

    SKF is a leading global supplier of bearings, seals, mechatronics, lubrication systems, and services which include technical support, maintenance and reliability services, engineering consulting and training. SKF is represented in more than 130 countries and has around 15,000 distributor locations worldwide. Annual sales in 2015 were SEK 75 997 million and the number of employees was 46 635.  

    ® SKF is a registered trademark of the SKF Group.

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