Technical Study: Bearing Fatigue Life Extension
Fine filtration has a significant beneficial effect on bearing life. A study conducted at the Imperial College, London, United Kingdom by Dr. P.B. Macpherson and others, demonstrated the relationship between filtration rating and the relative fatigue life of rolling contact bearings. Test on roller bearings showed that as the filtration rating decreased from 40µm to 3µm, bearing fatigue life increased by a factor of six.