<VV> Re: bearing race fit

[James Davis]

Great answer.  I will include it in my tech tips for the next Ultra 
Sounder.  Thanks.
Jim Davis

At 07:29 PM 1/6/2005, djtcz@comcast.net wrote:
>http://www.ntnamerica.com/Engineering/PDFs/2200/brgfits.pdf
>
>The load example is the same for a fan or pump with a rotating shaft, and 
>a typical rear axle,.
>Inner ring : Rotating / Outer ring : Stationary / Load : Constant direction
>The motion with a 1 inch diameter shaft and 0.001 inch clearance is like a 
>1000 - 1 gear ratio, so the race has to creep on the axle.  The clamping 
>force would have to be enormous (like way over 15,000 pounds) to keep the 
>race fromshifting downward under the weight of the car.
>
> > > The tech tip on sanding down the shafts is still listed in
> > > the Ultra Van tech tips (available online and searchable at
> > > www.corvair.org/chapters/ultravan/ ) but it is definitely NOT 
> recommended
> > > by anyone who has tried it.
> >
> > Why is that, Jim? Please explain.
> > Regards,
> > Bob Helt
>  ____________________