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  • Other Sources  (2)
  • MECHANICAL ENGINEERING  (2)
  • Carcinoma, Pancreatic Ductal/*immunology/pathology
  • Carcinoma, Lewis Lung/*immunology/pathology/therapy
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  • MECHANICAL ENGINEERING  (2)
  • Carcinoma, Pancreatic Ductal/*immunology/pathology
  • Carcinoma, Lewis Lung/*immunology/pathology/therapy
  • NONMETALLIC MATERIALS  (1)
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  • 1
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    Unknown
    The in-vacuo torque performance of dry-lubricated ball bearings at cryogenic temperatures (1989)
    In:  CASI
    Details
    Publication Date: 2013-08-31
    Description: The performance of dry-lubricated, angular contact ball bearings in vacuum at a temperature of 20 degrees K has been investigated, and is compared with the in-vacuo performance at room temperatures. Bearings were lubricated using dry-lubricant techniques which have been previously established for space applications involving operations at or near room temperature. Comparative tests were undertaken using three lubricants: molybdenum disulphide, lead, and PTFE. Results obtained using the three lubricants are presented.
    Keywords: MECHANICAL ENGINEERING
    Type: NASA, Marshall Space Flight Center, The 23rd Aerospace Mechanisms Symposium; p 319-333
    Format: application/pdf
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
  • 2
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    Development of long-life, low-noise linear bearings for atmospheric interferometry (1994)
    In:  CASI
    Details
    Publication Date: 2013-08-31
    Description: This paper describes the development of dry-lubricated linear bearings for use on the Michelson interferometer for passive atmospheric sounding (MIPAS). Two candidate bearing systems were developed and tested. In the first, use was made of linear roller (needle) bearings equipped with a pulley-and-cable arrangement to prevent cage drift and to minimize roller slip. The second design was of a roller-guided bearing system in which guidance was provided by all bearings rolling along guide rods. The paper focuses on the development of these linear bearings systems and describes the approach taken in terms of bearing design, lubrication methods, screening programs, and thermal-vacuum testing. Development difficulties are highlighted and the solutions ultimately adopted are described.
    Keywords: MECHANICAL ENGINEERING
    Type: NASA. Lewis Research Center, The 28th Aerospace Mechanisms Symposium; p 245-264; NASA-CP-3260
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
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