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NASA-LLIS-0439
Lessons Learned - Avoid Use of PFPE-based Lubricant on Moving Surfaces of Titanium (or Other Highly Reactive Metal) Bearings (1993)
Year: 1996
Abstract: Abstract:
A rotating prism motor aboard the TOPEX spacecraft experienced a sudden in-flight failure due to the use of perfluoropolyalkyether (PFPE) based lubricant on titanium bearings. Pure titanium debris produced by spalling of the motor shaft chemically reacted with the fluorocarbon-based lubricant, causing polymerization of the lubricant. Avoid the use of PFPE-based lubricants on titanium or other highly reactive bearing surfaces.
A rotating prism motor aboard the TOPEX spacecraft experienced a sudden in-flight failure due to the use of perfluoropolyalkyether (PFPE) based lubricant on titanium bearings. Pure titanium debris produced by spalling of the motor shaft chemically reacted with the fluorocarbon-based lubricant, causing polymerization of the lubricant. Avoid the use of PFPE-based lubricants on titanium or other highly reactive bearing surfaces.
Subject: Hardware
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| contributor author | NASA - National Aeronautics and Space Administration (NASA) | |
| date accessioned | 2017-09-04T17:37:27Z | |
| date available | 2017-09-04T17:37:27Z | |
| date copyright | 07/19/1996 | |
| date issued | 1996 | |
| identifier other | DNBEQCAAAAAAAAAA.pdf | |
| identifier uri | http://yse.yabesh.ir/std/handle/yse/160302 | |
| description abstract | Abstract: A rotating prism motor aboard the TOPEX spacecraft experienced a sudden in-flight failure due to the use of perfluoropolyalkyether (PFPE) based lubricant on titanium bearings. Pure titanium debris produced by spalling of the motor shaft chemically reacted with the fluorocarbon-based lubricant, causing polymerization of the lubricant. Avoid the use of PFPE-based lubricants on titanium or other highly reactive bearing surfaces. | |
| language | English | |
| title | NASA-LLIS-0439 | num |
| title | Lessons Learned - Avoid Use of PFPE-based Lubricant on Moving Surfaces of Titanium (or Other Highly Reactive Metal) Bearings (1993) | en |
| type | standard | |
| page | 3 | |
| status | Active | |
| tree | NASA - National Aeronautics and Space Administration (NASA):;1996 | |
| contenttype | fulltext | |
| subject keywords | Hardware | |
| subject keywords | Parts Materials & Processes |