Study on the Effect of Angular Misalignment on the Contact Load and Stiffness of Cylindrical Roller Bearings

Cylindrical Roller Bearings (CRB) find extensive application in rotating machinery. However, the issue of bearing angular misalignment has received limited research attention. Therefore, a four-degree-of-freedom quasi-static model of CRB is introduced, specifically considering angular misalignment in two directions. The model enables an investigation into the impact of angular misalignment on load distribution, contact moment, and bearing stiffness. The obtained results reveal that angular misalignment in two radial directions only marginally affects load distribution but significantly influences the contact moment. Furthermore, it is observed that misalignment angles in different directions have varying effects on rollers positioned at distinct azimuths. Moreover, the influence of angular misalignment on angular stiffness is considerably more substantial than its impact on radial stiffness. These findings carry significant implications for addressing misalignment concerns in CRB.