Hybrid Bearings Static Load Capacity and Its Application

Abstract

The static load rating of hybrid bearings is a performance parameter used in designing hybrid bearings applications. The calculation of this load capacity factor is specified by the International Standard ISO 20056-2:2017. In this article, the static load rating of hybrid bearings is analysed using a novel experimental method for both point and line contact bearings. From the obtained measurements, an assessment of the ISO equations used for hybrid rolling bearings static load ratings is carried out. The comparison of the analytical and experimental results indicates good agreement and the overall validity of the current ISO formulation. The practical use of the ISO static load rating in designing hybrid bearing applications is also discussed. Using an actual hybrid bearing application case, it is shown when the static rating becomes the critical parameter in the design of hybrid bearings applications.