[modeleng] Re: Steel Wheels
- From: "Ron Head" <ron.head@xxxxxxxxxxxxx>
- To: <modeleng@xxxxxxxxxxxxx>
- Date: Fri, 18 Nov 2005 19:32:16 -0000
Hi Phil
Have you thought about putting a lip on the outside of the tyre, as in full
size practice?
Interesting, what you say about tyres coming loose if the fit is too heavy.
I know this can also happen in full size as the wheels get progressively
turned down - presumably the hoop stress increases with the reduction in
cross section, till the material reaches its yield point.
Regards
Ron
----- Original Message -----
From: "Phill Smith" <steam@xxxxxxxxxxxxxx>
To: <modeleng@xxxxxxxxxxxxx>
Sent: Friday, November 18, 2005 1:59 PM
Subject: [modeleng] Re: Steel Wheels
> The best way to do this accurately (and so they can't come of through
> continual cornering) is to put a small step on the inside of the rim, with
> a
> matching inner bore in the tyre. ........ There is no need for this step
> to
> be a press fit, but I make it so anyway. It is also under the flange so it
> can't be seen.....
> Don't be tempted to increase the interference
> fit, as the stresses may be increased enough that the rolling stresses
> (compressive stress) may permanently stretch the tyre so that it comes
> loose......
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