Re: [CR]Does the QR really affect bearing adjustment?

(Example: Framebuilders:Rene Herse)

Date: Fri, 10 Jun 2005 12:28:17 -0700 (PDT)
From: "John Barry" <usazorro@yahoo.com>
Subject: Re: [CR]Does the QR really affect bearing adjustment?
To: marcus.e.helman@gm.com, classicrendezvous@bikelist.org
In-Reply-To: <OFE0C9FC41.2AF03D02-ON8525701C.005B075A-8525701C.006928CD@gm.com>


Marcus,

I too am a little skeptical about the axle itself being compressed, but I think I can answer your question about nutted axles. With a nutted axle, the holding force is applied to the nuts and to the threads on axle that are outside of the dropouts. If anything, a force similar to tightening down the quick release would be found on the components inside the dropouts.

Regards,

John Barry
Mechanicsburg, PA


--- marcus.e.helman@gm.com wrote:


> I know it is common wisdom that clamping a wheel
> into a frame with a QR
> affects the adjustment of the bearings, causing them
> to move inward, and
> perhaps bind. Is there any proof of this? I find
> it kind of hard to
> believe. Is the idea that the axle compresses? I
> would have thought that
> a relatively short piece of steel would not respond
> to force this way. If
> it is not axle compression, what accounts for this
> supposed phenomenon?
>
> If axles are in fact this flexible, wouldn't we
> observe the opposite effect
> with bolt-on wheels? It seems to me that tightening
> the nuts on bolt-on
> wheels would essentially be stretching the axle. I
> have never heard that
> track axles should be adjusted to bind just a bit
> because tightening the
> nuts would cause the wheel to loosen up.
>
> Just wondering,
> Marcus Helman
> Huntington Woods, MI
>
> _______________________________________________
> Classicrendezvous mailing list
> Classicrendezvous@bikelist.org
> http://www.bikelist.org/mailman/listinfo/classicrendezvous
>

__________________________________ Discover Yahoo! Stay in touch with email, IM, photo sharing and more. Check it out! http://discover.yahoo.com/stayintouch.html _______________________________________________ Classicrendezvous mailing list Classicrendezvous@bikelist.org http://www.bikelist.org/mailman/listinfo/classicrendezvous