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.
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