X-Mozilla-Keys:                                                                                 
Kevin Walsh wrote:

Paul-

This double stack of bearings should be angular contact bearings.  If
you are going to take the thrust with them, they should both face the
same direction.  If you are not, they should face opposite directions.
This way you can preload them against each other.  For this design you
should really reference Prof. Alex Slocum's book Precision Machine
Design.  It is available online at http://pergatory.mit.edu/.

Alex was a professor of mine a few years ago.  Truly an amazing machine
designer.

Kevin

Thanks Kevin. I think I have heard of him. Interesting web site name.

Paul Lamar
 
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