Finite Element Analysis of Solid and Hollow Roller Bearings to Predict the Influence of Contact Factors on Cage Slip

Abstract

This study examines the influence of contact factors such as bearing deformation, contact width and contact pressure on cage slide in cylindrical roller bearings. A cylindrical shaped roller bearing test setup is designed in order to determine the operating speed of bearing components under varying working circumstances. Solid and hollow roller bearings are analyzed using finite element technique, and the contact parameters are obtained. The cage slip obtained by experimental work is correlated with the contact parameters of hollow and solid shaped roller bearings. The specific load acting on solid rollers at various angular positions and the corresponding bearing deflection are obtained by FEA and the bearing run out is estimated. A new methodology is developed for deriving the contact mechanics of hollow roller to predict contact pressure and contact width from the roller deflection. The effect of hollowness on these parameters is derived and the corresponding cage slip is correlated. The effect of hollowness on bending and resultant stresses is obtained by numerical and analytical methods to correlate the stability of hollow roller bearing with the percentage of hollowness.