• CN: 11-2187/TH
  • ISSN: 0577-6686

›› 2002, Vol. 38 ›› Issue (10): 105-107.

• Article • Previous Articles     Next Articles

EXPERIMENT INVESTIGATION ON MULTIPLE FRETTING WEAR OF AUTOMOTIVE HUB BEARING

Zhang Xueping;Yao Zhenqiang   

  1. Shanghai Jiaotong University
  • Published:2002-10-15

Abstract: A new test rig to measure radical fretting wear of hub bearing is introduced, by which three-group bearings are tested. It turns out that macro fretting wear gratings take place in bearing raceway, micro-apertures appear continuously about 20μm under bearing raceway, and micro-crack parallels to bearing raceway more severe fretting wear. Followed, the 3D stress distribution of hub bearing is simulated under radical load. The simulation demonstrates spaced 3D stress stripe and its amplitude. Based on the experiment, stress distribution simulation of hub bearings under automobile’s typical running conditions, a generalized multiple fretting wear mechanism model for hub bearing is proposed. The model provides a new approach for alleviating fretting wear and enhancing the reliability of hub bearings.

Key words: Automotive, Fretting wear, Hub bearing, Mechanism model, Stress distribution

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