This is an Integrated Mathematical Model to predict the fatigue life of the bearing rolling element under the influence of both the Micro-Inclusion Effect and the Precessional Slip. The relationship between Micro-Inclusion Effect and Precessional Slip is investigated for the bearing ball undergoing Hertzian contact fatigue by performing the failure analysis. The predicted ball's life and Experimental cycles to failure are compared to validate the life model. The model is designed in such a way that the failure on the ball is singled out without damaging the cage and raceway. The presence of Larger Inclusions is measured using X-ray Spectroscopy and destructive testing.