Launched earlier this year at Hanover, Schaeffler’s new premium grade, X-life FAG E1 spherical roller thrust bearings now boast significant improvements, including increased load ratings (static: +10%, dynamic: +35%), limiting speeds (+50%), fatigue limiting load (+70%) and, not least, a 170% increase in bearing life.
The performance improvements were made possible by modifying and improving the bearing contact geometry and bearing kinematics. This included adding longer rollers with larger diameters, which results in higher load ratings. Surface improvements to the rolling elements ensure the formation of a lubrication film that is capable of supporting high loads. Improved osculation conditions and additional profiles further optimise the rolling contact, while modified osculation and precise rib geometry increase the load carrying capacity of the rib contact. A new sheet metal cage, with improved roller guidance and lubrication support, reduces wear and extends the life of the bearing.
Higher axial load carrying capacity and lower bearing temperature, as well as improved resistance to wear, have enabled a further increase in operational reliability and economic efficiency. The bearings are suitable for applications in which very high axial loads are present and where shaft deflections or misalignments of bearing seats must be compensated for.