Tribological aspects of a strain wave gearing system with specific reference to its space application

  title={Tribological aspects of a strain wave gearing system with specific reference to its space application},
  author={Keiji Ueura and Yoshihide Kiyosawa and Jun Kurogi and Shigeru Kanai and Hiroshi Miyaba and Kazuaki Maniwa and M. Suzuki and Shingo Obara},
  journal={Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology},
  pages={1051 - 1061}
  • Keiji Ueura, Y. Kiyosawa, +5 authors S. Obara
  • Published 2008
  • Engineering
  • Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology
Strain wave gearing (SWG), also known as harmonic drive gear, has been used in many space applications. In 2003, a development of grease-lubricated-type SWG for space flight applications was begun. The life tests of the SWG exposed to vibration test and thermal vacuum test were performed in vacuum. The life test results showed that the in-vacuum operating life of the SWG was significantly short compared with the in-atmosphere life, which is normally corresponding to a rolling fatigue life of… Expand
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