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 wave generator bearing. This may be mainly caused by the severe wear at the wave generator-flexspline interface, where the lubricant is not supplied easily into the clearance in vacuum.
Trlbological aspects of a strain wave gearing system with specific reference to its space application
Tribologische Aspekte eines harmonischen Getriebesystems für den Einsatz in der Raumfahrt
2008
11 Seiten, 18 Bilder, 5 Tabellen, 6 Quellen
Aufsatz (Zeitschrift)
Englisch
Development of Strain Wave Gearing for Space Applications
British Library Conference Proceedings | 2007
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