Stud Piloted vs Hub Piloted

[Jeff Miller]

That's pretty much it.

The most important difference is that on a "stud-piloted" wheel the
weight of the coach is borne by the friction between the wheel and
the hub via the clamping force of the nut (so NO GREASE between wheel
and hub on stud-piloted). On the "hub-piloted" wheel the weight of
the coach is borne by the hub flange in the center of the wheel/hub,
the studs just keep it there and transfer lateral loads and torque
(thus the smaller studs/nuts). The stud-piloted is an older system ,
the hub-piloted was a European standard. Most American cars and Class-
8 trucks changed in the late '80s on, BB changed in '02 I believe,
some RVs still haven't changed.

They are not compatible. Both work fine if properly installed.

- Jeff Miller
in Holland, MI


--- In WanderlodgeForum@yahoogroups.com, Curt Sprenger
wrote:
>
> Hi Dick,
> I'll try to explain.
>
> Stud piloted...the wheel centers on the studs. The wheel stud holes
and
> lug nuts are tapered. The tapers center the wheel when the lug nuts
are
> tightened.
>
> Hub piloted...the wheel is centered on the hub. The wheel stud
holes and
> lug nuts are not tapered.
>
> Someone will chime in if my explanation needs refinement.
>
> Curt Sprenger 1987 PT38, Anaheim Hills, Calif.
>
>
>
> Richard Hayden wrote:
>
> > Am I the only one who doesen't know what hub "piloted and stud
> > piloted" means? At the risk of embarrassing myself, what do
those
> > terms mean?
> >
> > Dick Hayden - '87 PT 38 - Lk. Stevens, WA
> > ----- Original Message -----
> > From: Jeff Miller
> > To:
> >
WanderlodgeForum@yahoogroups.com om>
> > Sent: Friday, December 16, 2005 6:35 AM
> > Subject: [WanderlodgeForum] Re: Stud Piloted vs Hub Piloted
> >
> >
> > New hubs, new brake drums, new studs/nuts, new center-caps.
> >
> > The cost would be too much to be worth it IMO, you can buy stud-
piloted
> > wheels new.
> >
> > - Jeff Miller
> > in Holland, MI
> >
> >
> > --- In
> >
WanderlodgeForum@yahoogroups.com om>,
> > "Henry Claeys" ...>
> > wrote:
> > >
> > >
> > > I'm searching for 8.25 X 22.5 rims for my 1979 FC 35. So far
I've
> > found many more hub piloted instead of the stud piloted rims.
Is much
> > modification required to use the hub piloted rims? I'm
guessing that
> > I'd need different hubs. Henry@H... McAllen, Tx 1979 FC 35.
> > >
> >
> >
> >
> >
> >
> >
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