Comparison of Lubricant Performance in an Oscillating Spacecraft Mechanism
AEROSPACE CORP EL SEGUNDO CA LAB OPERATIONS
Pagination or Media Count:
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.
- Lubricants and Hydraulic Fluids