[Shotimes] offsets and wheel bearing stress was: RE: RE: RE: [Shotimes] Widebody '94 SHO

[Ian Fisher]

I can't speak for rear bearings but those of us who
run Todd Cook's wilwood setup with extra fat rotor
hats do go through wheel bearings fairly frequently
because the wheel is pushed out further from the hub.
On a street car I usually average new wheel front
wheel bearings every 2 years whereas some of the track
junkies replace theirs about once a year.

This is a known issue that even Todd acknowledges. The
fix is to dump the slicers and run thinner rotor hats
which I plan on doing shortly.

Ian

--- Ron Porter <ronporter@prodigy.net> wrote:

> Yes, but keeping the same offset with wider rims
> changes the relationship of
> the hub to the rim edges, as the centerline of the
> rim changes.
> 
> If you are worried about the bearing load (which is
> a non-issue, IMHO),
> keeping the same offset on a wider rim increases the
> load, as more weight is
> outboard of the hub.
> 
> Ron Porter
> 
> -----Original Message-----
> From: shotimes-admin@autox.team.net
> [mailto:shotimes-admin@autox.team.net]
> On Behalf Of cmichaelo@optonline.net
> Sent: Friday, November 11, 2005 5:45 PM
> To: shotimes@autox.team.net
> Subject: Re: RE: RE: [Shotimes] Widebody '94 SHO
> 
> Offset is measured from the centerline, not from the
> outer face of the rim!
> 
> So if your offset is 42mm, you're 42mm from the
> centerline. Increasing rim
> width won't change the offset, you just get deeper
> dish rims.
> 
> Michael
> 94MTX,green,BOS+,Koni/Intrax,Baer,Corbeau
> SHO items for sale:
> http://hometown.aol.com/cmichaelo/for_sale.html
> 
> ----- Original Message -----
> From: Zach Leahy <leahyz@gmail.com>
> Date: Thursday, November 10, 2005 2:04 pm
> Subject: Re: RE: RE: [Shotimes] Widebody '94 SHO
> 
> > You are 42mm from the outer face of the rim, so
> adding rim width 
> > changes the
> > depth which moved the centerline if your offsett
> stays the same.
> > Z
> > 
> > On 11/10/05, cmichaelo@optonline.net
> <cmichaelo@optonline.net> wrote:
> > >
> > > OK, help me understand something then. I'm
> starting to get myself
> > > confused.
> > >
> > > I believe "ground zero" is +42mm offset,
> regardless of rim 
> > width. Thus
> > > getting wider rims shouldn't make a difference
> on the stress, as 
> > long as
> > the
> > > offset is the same.
> > >
> > > On the other hand, I would think that any time
> you move the 
> > wheels out (or
> > > in for that matter) you change the stress on the
> bearing, cause 
> > you are in
> > > effect changing the relative pivot point when
> you insert spacer, 
> > or when
> > you
> > > install wheels with a different offset.
> > >
> > > Michael
> > > 94MTX,green,BOS+,Koni/Intrax,Baer,Corbeau
> > > SHO items for sale:
> http://hometown.aol.com/cmichaelo/for_sale.html
> > >
> > > ----- Original Message -----
> > > From: Ron Porter <ronporter@prodigy.net>
> > > Date: Wednesday, November 9, 2005 5:27 pm
> > > Subject: RE: RE: [Shotimes] Widebody '94 SHO
> > >
> > > > No
> > > >
> > > > If he gets 2" wider wheels, and gets 1" less
> offset, he's back to
> > > > groundzero.
> > > >
> > > > Ron Porter
> > > >
> > > > -----Original Message-----
> > > > From: shotimes-admin@autox.team.net
> [mailto:shotimes-
> > > > admin@autox.team.net]On Behalf Of
> cmichaelo@optonline.net
> > > > Sent: Tuesday, November 08, 2005 10:48 PM
> > > > To: Bill Murray
> > > > Cc: shotimes@autox.team.net
> > > > Subject: Re: RE: [Shotimes] Widebody '94 SHO
> > > >
> > > > Whether he pushes the wheels out with say 2"
> spacers or he get
> > > > wheels with
> > > > 2" shorter offset will have the same effect on
> the spindles wrt
> > > > stress.
> > > > http://www.team.net/mailman/listinfo/shotimes
> > > >
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