See-through machine enables direct observation and indirect measurements at moderate speeds. Model of ball bearing, six times larger than real bearing, rotated in test machine. Transparency of walls and simulated lubricant reveal flow patterns and allow visible-light and infrared photographs to be made.
Test Apparatus For Oversize Ball-Bearing Models
NASA Tech Briefs ; 12 , 5
1988-05-01
Miscellaneous
No indication
English
Squeezing Salvages Oversize Seals
NTRS | 1990
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SAE Technical Papers | 1999