SKF's Efficient Bearings

April 10, 2007
Energy consumtpion will be reduced 30%.

Energy efficiency, a traditional focus within The SKF Group, will be raised to a higher level as it introduces a new bearing family. SKF says the designs will reduce energy consumption by at least 30% compared with standard ISO products. Initial production will start with the two most used types, the deep-grooved ball bearing and the tapered roller bearings, says Tom Johnstone, president and CEO. He says the new family maintains the service life and load-carrying capacity of standard ISO bearings.

The new tapered roller bearing will initially target industrial segments where applications exceed 1 MW power consumption, according to SKF. Typical examples are found in railway applications and transmissions used in heavy industry, ships, wind energy, conveyors and extruders. The initial size range: 200 mm to 600 mm outside diameter. The first applications are expected to be in wind turbines, SKF adds.

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The company says the technical improvements that deliver the energy savings are design related, such as surface topography and raceway profiles and geometry, together with a special polymer cage and an optimized set of rollers.

Initial applications for the deep-groove ball bearings will be in industrial electrical motors. Its technical improvements include optimized internal geometry, a new polymer cage and lower friction grease.

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