NASA NTRS · 19870020448
Anatomy of a bearing torque problem
Abstract
In the early 1970s, an antenna despin drive was developed for MBB solar science satellite HELIOS. A problem with high bearing drag torque that was encountered on the two flight models of this drive, after successful tests were completed on twelve bearings, an engineering model, and the qualification unit is discussed.
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Phinney, Damon D.. 1987-05-01. Anatomy of a bearing torque problem. https://ntrs.nasa.gov/citations/19870020448
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