[s-cars] alignment Q

[LL - NY]

Can you perhaps use washers that are pressed fit to the axles (to contain
the wobble)?

And yes, friction is independent of surface area. It's a surface area vs.
pressure trade-off thing.  So, I'd avoid the scrub.

I'd think solid axle tuning. Usually on RWD solid axle cars, alignment in
the rear is easy.

On 1/15/09, pkrasusky at ups.com <pkrasusky at ups.com> wrote:
>
>
> Interesting on the surface area Bob.  Guess I shoulda stayed awake during
> Physics - too busy doing funnels (etc.) before school - sigh.
>
> Sorry, I should have mentioned rules dictate use of supplied wheels, axles
> (sans modification), and no bushings / bearings.  Can use graphite which we
> are.
>
> Tx.
>
> -Paul
>
>
>
> -----Original Message-----
> From: Robert Myers [mailto:bob at chips-ur-s.com]
> Sent: Thursday, January 15, 2009 9:35 AM
> To: Krasusky Paul (WQQ2PXK)
>
> Cc: djdawson2 at aol.com; s-car-list at audifans.com
> Subject: Re: [s-cars] alignment Q
>
>
> Dredging faint memories from my sophomore physics class ISTR that
> friction forces are the result of coefficient of friction times the
> "normal force".  Normal in this sense means perpendicular to the
> surface.  The surface area has no part in the process.  Whether the
> contact patch is razopr narrow or somewhat wider should have no effect.
>
>
> Internal friction (from compression and relaxation of internal forces
> when the rubber tire is flexed should be much lower for the virtually
> rigid plastic "tires".  This should then reduce frictional drag from
> the wheels rubbing on the axles.
>
>
> A bushing?  Perhaps machine a slightly larger diameter
> axle?  Elimination of wobble should help significantly by reducing
> the normal forces of the wheel sliding on the axle.
>
> Do the rules permit lubrication of the axle?
>
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