Three-bearing swivel duct of a Pratt & Whitney F135 engine. The F135 powers all three variants of the F-35 Lightning II.
https://diqn32j8nouaz.cloudfront.net...wivel_duct.jpg
Previously:
https://www.homemadetools.net/forum/...367#post150701
https://www.homemadetools.net/forum/...517#post139355
https://www.homemadetools.net/forum/...233#post138513
https://www.homemadetools.net/forum/...586#post132536
