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    Comparison of Lubricant Performance in an Oscillating Spacecraft Mechanism

    Comparison of Lubricant Performance in an Oscillating Spacecraft Mechanism


    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)

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    Titel :

    Comparison of Lubricant Performance in an Oscillating Spacecraft Mechanism

    Beteiligte:
    D. J. Carre (Autor:in) / P. D. Fleischauer (Autor:in) / C. G. Kalogeras (Autor:in) / D. H. Marten (Autor:in)
    Erscheinungsdatum :

    1990

    Format / Umfang :

    30 pages

    Medientyp :

    Report

    Format :

    Keine Angabe

    Sprache :

    Englisch

    Schlagwörter :

    Manned Spacecraft , Lubricants & Hydraulic Fluids , Lubricants , Oscillation , Spacecraft , Boundaries , Boundary layer , Comparison , Degradation , Life tests , Lubrication , Orbits , Simulation

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