Stiffness Analysis of High-speed Cylindrical Roller Bearing Subjected to Combined Loads

This paper presents an analytical investigation of the stiffness on high-speed cylindrical roller bearings which are subjected to various compound loads. A four degree-of-freedom quasi-static model is established to study the stiffness matrix of the high-speed cylindrical roller bearings. Then, a systematical research to thoroughly investigate the effect of rotating speed and external load on the stiffness for cylindrical roller bearing is presented. Moreover, the influences of the basic bearing structural parameters including roller profile and the number of rollers on the bearing stiffness matrix are also given.