[python] Re: Pivot bearing

Brian,
 remember here that the doubling of the thickness of a beam almost adds a 
factor of seven wrt. stiffness for many materials. The reverse is naturally 
also true. Add in the threads and the breakage factor due to them and you just 
have too little material for the repeated loads perpendicular to the designed 
load vector. You probably wouldn't think of laying a bike down on the curb with 
the front fork fastener on the concrete curb and then weighing down the frame 
with something weighing more than you do so that you could sit comfortably on 
the tire. /*not only the spokes would be overstressed. */

One proviso: I am not an engineer! So these are my opinions and smatterings of 
things I think I remember reading.

regards,
ron


> -----Ursprüngliche Nachricht-----
> Von: "brian smith" <briannsmith@xxxxxxxxxxxxx>
> Gesendet: 09.06.08 02:51:24
> An: python@xxxxxxxxxxxxx
> Betreff: [python] Pivot bearing


> Pardon me if this has been adequately covered.
> 
> Have rear and/or front wheel hub bearings been used for the center 
> steer pivot of a python
> If robust enough those with threaded axles should be easy to bolt at 
> each end into the frame.
> Just wondering
> Regards to all
> Brian in SC USA
> 
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