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Re: A question on wheel bearings

To: Ulix Goettsch <ulix@u.washington.edu>, spridgets@Autox.Team.Net
Subject: Re: A question on wheel bearings
From: Jeff Boatright <jboatri@emory.edu>
Date: Fri, 30 Oct 1998 14:37:40 -0500
In-reply-to: <Pine.OSF.3.96b.981030111255.26567B-100000@saul6.u.washington.edu>
References: <l0313030cb25faec893ab@[163.246.48.154]>
Reply-to: Jeff Boatright <jboatri@emory.edu>
Sender: owner-spridgets@Autox.Team.Net
Ulix,

When I torqued the big nut down after installing new bearings, the spacer
was still mobile. If I go way over the torque value it might squeeze the
spacer as it apprently should be squeezed, but I seem to recall that
over-torquing the big nut is a no-no.

As to your second point, I too had a little play (as felt with the 12 and 6
o'clock tire shake test) after installing the new bearings, but it
miraculously went away, which means it's probably on the verge of falling
off :).

Jeff

Jeff

At 2:16 PM -0500 10/30/98, Ulix Goettsch wrote:


> Jeff,
> the spacer is supposed to be firmly squeezed.  You tighten the nut until
> it is.  I have never seen shims used.  I guess they would be necessary
> when, after tightening the nut, the wheel was locked up.
> Similarily, I had a brand new wheel bearing that still had a little play
> after the nut was tightened and considered machining a little off the
> spacer.  I didn't, but would like to know if this is common practice of if
> everyone's front wheel bearings are perfect after they are installed.
> Ulix
>
> On Fri, 30 Oct 1998, Jeff Boatright wrote:
>
> > This whole spacer question was hashed about on the mgs list also. I've
> > replaced both sets of front bearings and both sides had the spacers but no
> > shims. First, are there supposed to be shims, and second, if not, how would
> > the spacer add strength since it's not long enough to be firmly squeezed
> > between the inner and outer bearings? Or is it? (This is starting to sound
> > like an X-files thang...)
> >
> > Crash, I loved that note. :)
> >
> > Jeff
> >
> >  At 12:31 PM -0500 10/30/98, David Ramsey wrote:
> >
> >
> > > Sorry guys I can't resist, I run tapered cone roller bearings from timken
> > >without the spacer in my hubs.  This allows you adjust the pre-load on the
> > >bearings and kicks butt when compared to ball bearings.  I thought
> > >everybody knew that, but when I posted it before I found out that my
> > >wheels are going to fall off because the axles are so weak on these cars
> > >that they need the bearing spacer to support them. Was I surprised that
> > >this spacer that gives the ball bearings some kind of pre-load (not really
> > >it just spaces them apart) is the only thing between me and the front
> > >wheels on my car flying off.  Last month I hit a pot hole on I-80 east of
> > >Reno that threw my car into the air and had an axle snapped I still would
> > >run the tapered cone roller bearings!  I was surprised the whole front of
> > >the car didn't break off. It was so bad that I spilled my beer, dropped my
> > >cel-phone (I was talking to my lawyer), and worst of all I lost the draft
> > >of the "triple trailer" 18 wheeler. OK you can all go back to more
> > >important things on the list now.
> > >           Crash
> >
> >
> >
> >
> > Jeffrey H. Boatright, PhD
> > Senior Editor, Molecular Vision
> > http://www.molvis.org/molvis
> > Mailto:jboatri@emory.edu
> > 404-778-4113
> >
> >
> >
>
>     Ulix                                                    __/__,__
> .......................................................... (_o____o_)....
>                                                            '67 Sprite




Jeffrey H. Boatright, PhD
Senior Editor, Molecular Vision
http://www.molvis.org/molvis
Mailto:jboatri@emory.edu
404-778-4113




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