I am having trouble with bearing connectors.The aim is to find the natural frequency of the system which has a shaft supported by a housing through a bearing.Shaft is free to rotate about its axis.The orginal angular contact (25 deg) bearing is having an axial stiffness of 250.6 N/micrometer and radial stiffness of 501.2 N/micrometer.For modelling sake i have put a skf bearing.Can anybody tell me how to carry out this analysis.Please help.model is attached below.