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Spherical roller bearings boost energy efficiency of industrial fans and blowers

30 June 2013

SKF has introduced the Energy Efficient (E2) spherical roller bearing, which significantly enhances energy efficiency through reduced bearing friction.

Applications that can benefit from E2 technology include industrial fans, blowers and conveyors.

The SKF E2 spherical roller bearing achieves this improved efficiency through optimised internal design features designed to minimise friction, and a specially formulated grease designed specifically for this bearing by SKF.

The SKF LESA 2 grease combines fully synthetic polyalphaolefine base oil with a lithium soap thickener, which offers exceptional oxidation stability and resistance to water.  

To optimise the internal design, SKF re-engineered the cage and improved the surface finish of the rollers and raceways to reduce friction between the rollers and the rolling element lands. The optimised design also maximised the effects of the LESA 2 grease.

In laboratory tests, temperature reductions between 10 and 18°C have been measured for normal speeds and loads. As well as reducing running temperature, the lower operating conditions of the E2 bearing and LESA 2 combination also extend the re-lubrication interval by up to four times, depending upon operating conditions.  

The bearings are dimensionally interchangeable with ISO standard components, which means conventional bearings can be upgraded simply and quickly. E2 is manufactured in five sizes in the UK.

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