|
Posted by Joseph Gwinn on April 8, 2008, 9:29 am
Please log in for more thread options
> On Mon, 07 Apr 2008 21:58:26 -0400, Joseph Gwinn
>
>
> >>
> >> Hmm ... with a 6" plate instead of 9" you have less flywheel
> >> effect, so I would make the test time about 1/2 turn.
> >
> >Hmm. Rotational momentum will vary with the moment of rotational
> >inertia, which will vary as the square of diameter: (6/9)^2= 0.444,
> >call it one half.
> >
>
> Polar moment of inertia is proportional to the fourth power of the
> diameter.
Right. Should have looked it up. It's the contribution of an element
that varies as the square.
Also again looked at the 5914 manual. It is a 6" driving plate that one
uses, not 9". Don't know where the 9" came from. Perhaps somewhere
else in the manual. In any event, I'll go through the spindle bearing
adjustment dance
Joe Gwinn
| 
Yahoo! 
Google 
Windows Live 
del.icio.us 
digg 
Netscape 
XML Sitemap
>> Hmm ... with a 6" plate instead of 9" you have less flywheel
>> effect, so I would make the test time about 1/2 turn.