Reduced CO2 and fuel consumption with the new SKF Low Friction Engine Seal

2011 May 18, 22:43 CET

The new SKF Low Friction Engine Seal lowers CO2 emissions and improves fuel economy, via friction levels up to 55% lower than conventional seals. Seals are available in sizes to fit to all rotating shafts, primarily in engines, but also in transmissions. Special custom designs are available, e.g. plastic bayonet fitting, and also for SKF ROTOSTAT sealing modules.

The seal has a low friction elastomer sealing lip design based on the wafer technology used for PTFE shaft seals. However, the new seals use a specially formulated FKM material with improved compression set and relaxation properties to compensate for the lack of a spring, used in shaft seals. The result is a seal design that provides very low friction, outstanding sealing security and long service life.

SKF Low Friction Engine Seal is customized to meet the latest technical requirements of the intended applications. The superior features of these designs provide robust sealing and high durability, even at high speed. It also provides improved capability on eccentricity and dynamic run-out compared to PTFE seals, as well as good dry-running ability. It provides minimal shaft wear and has excellent dirt exclusion. And it is simple to install because no additional sealants or lubricants are necessary.

Additional benefits:

  • Gas tight sealing lip for the engine air leak test
  • Variety of outer diameter designs for best installation and retention of the seal

To give an indication of the CO2 reduction, we offer a service using the SKF Vehicle Environmental Performance Simulator, which bases the result on standard driving cycles (e.g. the New European Driving Cycle NEDC).

Example:

For a 4 cylinder gasoline engine passenger car, the SKF Vehicle Environmental Performance Simulator (VEPS) software calculates savings of:

  • 1.04 g CO2 /km in the NEDC (European) driving cycle
  • 1.34 g CO2 /km in the US FTP 75 driving cycle

"SKF has a strong focus on sustainability and we are pleased to be able to announce the launch of a new low friction seal generation to supplement our strategy. It perfectly addresses the current automotive industry needs of reducing fuel consumption and emissions. But these successes are not the only advantage. We have also been able to demonstrate that the sealing reliability is now even higher," says John Bohenick, Director SKF Sealing Solutions.

Göteborg, 18 May, 2011

Aktiebolaget SKF
(publ)

For further information, please contact:
PRESS: Ingalill Östman, SKF Group Communication, tel: +46 31-337 3260, mobile: +46 706-973260, e-mail: ingalill.ostman@skf.com

Technical Press: Colin Roberts, SKF Group Technical Press, tel: +31 30 607 56 08, mobile: +31 65 394 41 11, e-mail: colin.roberts@skf.com

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 15,000 distributor locations worldwide. Annual sales in 2010 were SEK 61,029 million and the number of employees was 44,742. www.skf.com

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