A life test of lubricants for the R2 shaft bearings of a spacecraft oscillating scanner mechanism was performed under simulated orbital conditions. The lubricant originally used in the application, a chloroarylalkylsiloxane (CAS) oil, and a linear perfluoropolyalkylether (PEPE) oil failed in less than 2500 h or operation. A poly-alpha-olefin (PAO) oil has been running for more than 11,000 h without any indication of lubricant or system degradation. The performances of the oils are discussed in terms of the boundary lubrication conditions of the test. Keywords: Degradation, Lubricants, Oscillating spacecraft mechanism, Perfluoropolyalkylether wear tests. (JS)
Comparison of Lubricant Performance in an Oscillating Spacecraft Mechanism
1990
30 pages
Report
No indication
English
Comparison of lubricant performance in an oscillating spacecraft mechanism
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