Fan Bearing Differences: Fluid Dynamic, Ball, Hydro Dynamic, & Sleeve Explained, ft. Noctua

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We dive into fan bearing differences with Noctua's Jakob Dellinger to have an engineering discussion. For our simplified version of the fan bearings topic, we focus on common misconceptions (particularly in marketing for fluid-dynamic bearings, or FDB, and hydro-dynamic bearings). This also covers some basic differences of ball bearings, sleeve bearings vs. "fluid-dynamic bearings" -- or what we're using to refer to groove-based fluid dynamic bearings in particular.

We made this video about how ball bearings (and grooved bearings) are made!    • How Computer Fan Bearings Are Made: Ball B...  
Watch our video about beat frequency noises, also featuring Jakob!    • The Most Annoying Computer Noise | Noctua ...  
Watch our "Forbidden Interview" with Jakob of Noctua last year:    • The Forbidden Noctua Interview: Fan Engine...  
Watch our video (also featuring Jakob) about Noctua's pressure scan results and new Noctua NH-D15 G2:    • Noctua Finally Did It | NH-D15 G2 Launchin...  
Find all of our engineering interviews here:    • Noctua Finally Did It | NH-D15 G2 Launchin...  

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TIMESTAMPS

00:00 - Fan Bearing Misconceptions
01:39 - Fluid-Dynamic Bearings Often Mismarketed
06:34 - Should We Rename "FDB?"
08:10 - Fan & Bearing Explosion Diagram
12:38 - What Makes a Good Bearing
17:39 - Conclusion & Complications

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Steve Burke: Host
Vitalii Makhnovets: Camera, Editing
Tim Phetdara: Editing