[modeleng] Re: Steel Wheels
- From: David Everett <deverett2003@xxxxxxxxxxx>
- To: modeleng@xxxxxxxxxxxxx
- Date: Fri, 18 Nov 2005 06:51:24 +0000 (GMT)
Following on what Rich said, I think it was Keith Wilson who advocated screwed
dowels half in the
wheel and half in the shrunk-on tyre to hold everything in place 'belt and
braces' style.
Dave
Saudi-Arabia-On-Sea
--- "R.L. Roebuck" <rlr20@xxxxxxxxxxxxxxxx> wrote:
> One other thought - best to make sure you have a shoulder
> somewhere on the arrangment, to make sure that the tyre is dead
> square on the wheel when the whole thing goes tight. If it goes
> tight on the 'huh' I suspect it might work itself loose in >
> service, no matter how tight an inteference fit you think you've
> got.
> On Thu, 17 Nov 2005, cbrumbelow@xxxxxxxxxxx wrote:
>
> > Be sure your assembly arrangement allows time to get the tyres/tires on and
> > lined up before
> the temperature difference is gone. It might be well to leave the exteriors
> of the tires enough
> oversize to allow truing cuts once everything has been assembled. Some might
> even suggest that
> the final truing take place between centers with the tires on the wheels and
> the wheels on the
> axles. And, you might want to match each tire to a specific wheel center as
> you turn the sets.
> Am I reading correctly that you will have wheel centers of a nominal 8"
> diameter and an
> interfereance fit of 0.008 inches? Charles
> > -------------- Original message --------------
> >
> >> I have just acquired, at great expense, a piece of steel tube 8" I.D. and
> >> 3/4ins. wall thickness. I am about to start machining it to produce six
> >> steel
> >> tyres which I intend to shrink onto three pairs of existing, cast iron
> >> wheel
> >> sets (after machining off the current treads). The plan is to make the
> >> tyres
> >> with one thou per inch of interference, expand them with heat then shrink
> >> them
> >> onto the wheels.
> >> Before I pluck up courage to do this job does anyone have any advice to
> >> offer?
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