Ab Skf

Espejel Guillermo Morales

Antonio Gabelli

Pieter Martin Lugt

A rolling element having comprises an inner ring, an outer ring and a series of rolling elements which are in contact with the raceways of the rings, an ultra-low viscosity fluid being present in the contacts having a kinematic viscosity &#x3bd;=(&#x3b7;/&#x3c1;) of less than 2 mm/s, wherein the surfaces of the rings and the rolling elements have asperities which can have solid-to-solid contact during operation of the bearing. A factor &#x3c;i&#x3e;D&#x3c;/i&#x3e; is defined which is equal to (I) whereby the solid-to-solid contact of the asperities is reduced by selecting such design parameters and operating conditions of the bearing that &#x3c;i&#x3e;D&#x3c;/i&#x3e; is in the range from 8.0&#xd7;10mrad sto 1.36&#xd7;10mrad s.

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Huizen, Netherlands

Espejel Guillermo Morales