Bearing Life Evaluation of Automotive Wheel Bearing Considering Operation Loading and Rotation Speed

작동하중과 회전속도를 고려한 자동차용 휠 베어링의 수명평가

  • Received : 2016.03.04
  • Accepted : 2016.04.25
  • Published : 2016.06.01


An automotive wheel bearing is important part that translates rotating motion and bears vehicle weight. Recently, in accordance with the demands for $CO_2$ emission reduction and fuel economy regulation, the requirements for the weight reduction and miniaturization of vehicles has increased. Therefore, life evaluation technology of the bearings has increased in necessity. Since the bearing life is affected by many parameters such as bearing geometry, bearing specifications, and vehicle specifications, it is difficult to predict. In this paper, the bearing life was tested by varying the applied load and rotation speed and comparing them with the basic rating life and modified rating life that were suggested in ISO standards. From the results, it was found that there was a difference between the test life and theoretical life and modified rating life than basic rating life was to be relatively well predicted by test life.


Automotive Wheel Bearing;Basic Rating Life of Rolling Bearings;Modified Rating Life of Rolling Bearings;Bearing Test Life


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