Bearing life and load ratings
In industrial applications, bearing size is usually determined by its load carrying capacity relative to the load, required life and required reliability of the application. For machine tool applications, bearing size is almost always determined by other factors such as system rigidity, fixed dimensions of the spindle, as well as the speed and feed parameters of the application.
For super-precision bearing arrangements, determining the actual load is particularly complex as it involves many influencing factors. SKF SimPro Spindle is a sophisticated computer program used to quickly analyse statically indeterminate spindle bearing arrangements. It supports the analysis of spindles and contains detailed models of super-precision bearings, and when calculating the rating life of hybrid bearings, the SKF Generalized Bearing Life Model (GBLM) can be used. For additional information, contact the SKF application engineering service.