Accession Number:

ADA229445

Title:

Comparison of Lubricant Performance in an Oscillating Spacecraft Mechanism

Descriptive Note:

Technical rept.

Corporate Author:

AEROSPACE CORP EL SEGUNDO CA LAB OPERATIONS

Report Date:

1990-09-30

Pagination or Media Count:

30.0

Abstract:

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.

Subject Categories:

  • Lubricants and Hydraulic Fluids

Distribution Statement:

APPROVED FOR PUBLIC RELEASE