Correction: Hard drive spindles typically use ball bearings. It is the readwrite heads which ride on a cushion of air (ie they are aerodynamic bearings). Also, the spin stands used to inspect hard drive discs use air bearings.

Brought to you by the Machine Tech Video Blog!

In this video, Adam introduces hydrodynamic bearings. He covers:

+ The pros and cons of hydrodynamic bearings
+ The construction of a hydrodynamic bearing
+ A stepbystep explanation of the operation of a hydrodynamic bearing
+ A breakdown of fluid viscosity
+ Some variations on the hydrodynamic bearing: hydrostatic lift, tilting pad journal and thrust bearings, gases as lubricants

Title music by Andrew Applepie "Festivities":
http://andrewapplepie.com

Special thanks to Laney College in Oakland, CA.

For more about Laney College, check out the website: http://laney.edu/machine_technology/

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