Infrared Thermographic Diagnosis Mechnism for Fault Detection of Ball Bearing under Dynamic Loading Conditions

Fault detection during dynamic loading conditions of rotational machineries unlike the traditional diagnosis method, the use of contactless, non-destructive infrared thermographic method is proposed. In this paper, by using a rotating deep-grooved ball bearing, passive thermographic experiment was performed as an alternative to proceeding the traditional fault monitoring. In addition, the thermographic experiment was compared with the traditional vibration spectrum analysis to evaluate the efficiency of the proposed method. Based on the results, the temperature characteristics of the ball bearing under dynamic loading conditions were analyzed thoroughly.