Non-Linearity of Stiffness Ball-Bearing to Support the Preventive Maintenance Rotating Machinery

Rolling element bearings are one of the machine components that transmit excitation and play an important role in the effective operation of rotary machines. This element is one of the main non-linear sources of machine rotation which significantly influences machine stiffeningThe main source of non-linearity comes from internal radius clearance, unbalanced forces, Hertzian contact, stiffness, damping, number of rolling elements, bearing preload, and so on. Routine maintenance tasks such as lubrication, cleaning and inspection can help prevent premature bearing failure and extend machine life. By performing routine preventive maintenance, businesses minimize downtime and increase productivity, ultimately resulting in cost savings and improved performance. This research has provided a practical understanding of the phenomenon, with wear there will be a response to various defects that must be considered, such as unbalance, mis-alignment, wear and others.Theoretical analysis and experimental results show that the large dynamic force on the roller due to unbalanced forces on both sides of the roller and deviation of the axial distance of the bearing are the main causes of abnormal wear. In the following article we discuss common causes of bearing failure, best lubrication practices, how to check and clean bearings, when to replace them, and much more.