The work to correct several design deficiencies present in the bearings used in the orbital extravehicular spacesuit is reported. These deficiencies included: difficult stitch-on interface between fabric and outer race; a tendency for the clamping threads to seize; and, most importantly, the failure of the sealing surfaces (Teflon seat, Delrin seal) to maintain integrity with cycling. The first problem was corrected by raising the stitch-on holes so as to be more accessible. The seizing was eliminated by changing to a coarser thread, from 32/inch to 24/inch. The solution to the sealing problem required a materials evaluation, candidate material selection, and adhesive evaluation (for bonding the seat material to the outer race) and bench-cycling of candidate seal/seat combinations. The final configuration, successfully bench-cycled and delivered to NASA, is shown. (Author)


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen


    Exportieren, teilen und zitieren



    Titel :

    On Development of a Sealed Bearing for Space Suits


    Beteiligte:
    J. Rayfield (Autor:in)

    Erscheinungsdatum :

    1975


    Format / Umfang :

    15 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch





    Sealed Joints for Hard Suits or Robots

    Vykukal, Hubert C. | NTRS | 1987


    Space suits.

    Hays, E. L. | NTRS | 1964


    Space suits.

    Radnofsky, M. I. | NTRS | 1967


    Space suits.

    Correale, J. V. / Guy, W. W. | NTRS | 1963