Results of Environmental Testing of Modified OH-58A Tail Rotor Drive Shaft Bearing Assemblies.
BELL HELICOPTER TEXTRON FORT WORTH TEX
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This report presents the results of testing OH58A tail rotor bearings with dust shields and modified seals. The spring loaded bearing clamp up feature incorporated into 206-040-344-1 hanger assembly was also tested. Testing was accomplished in a closed circuit wind tunnel. Air filtration media test dust was introduced into the test machine periodically to produce a test environment of high velocity air laden with sand and dust. Bearing arrangement exhibited a 5X B10 Life Improvement. Author
- Machinery and Tools