X-life serves as a new design opportunity for engineers working with FAG and INA products. With the application of advanced manufacturing technologies, the entire contact surface of rolling elements and raceways has improved, becoming more consistent. As a result, under the same load conditions, the stress on the rolling elements and the mating surfaces is significantly reduced. Consequently, the X-life bearings will have a longer service life under the same working conditions. On the other hand, under the same rated life, they can withstand higher loads. With these optimized features, X-life bearings open up new application prospects, such as reducing the size of support bearings. Moreover, the higher cost-performance ratio enhances the overall economy of bearing supports.