[Tvr] [Fot] Hubs n Bearings

malaboge at aol.com malaboge at aol.com
Mon Dec 23 10:45:59 MST 2013


John,
I actually have already drilled/taped/installed bolts thru the bottom of the
uprights but have still seen too many failures.  Don't know how many of those
that have failed had the mod done to them but assume that some of the broken
uprights on race cars were done and still failed.

How did you mod the GT axle to fit the TR hub? You actually don't need to do
anything for the outer bearing as Timken lists one to do the job. The inner is
the problem. Did you cut the GT axle down to fit the TR  bearing? About 60
thou would have to removed from the axle and doing that just sounds like a new
place for a stress riser with a stepped axle just as it goes into the
upright!

Guess this becoming a more difficult mod...was hopin for a simple bearing to
fit.

Lookin for the simple fixes in life...
Nick in Nor Cal







-----Original Message-----
From: jkhagen <jkhagen at charter.net>
To: malaboge <malaboge at aol.com>
Cc: fot <fot at autox.team.net>; tvr <tvr at autox.team.net>; vintage-race
<vintage-race at autox.team.net>
Sent: Mon, Dec 23, 2013 8:20 am
Subject: RE: [Fot] Hubs n Bearings


I'll reply all to see if anybody out there thinks I'm crazy-
    I have TVR Grandtura  MK III  '63--I use the Spit uprights drill out
the hollow lower ends [for grease] thread and install grade 5-8 bolts to
re-enforce-[must now grease by hand every once in  awhile] Machine outer
GT-6 spindle to accept TR-3-4 hubs---worked for 7+ years.  John Hagen
Merry Christmas!

On Mon, Dec 23, 2013 at 1:01 AM, malaboge at aol.com wrote:

> Herebs the issue-
>
>
> Ibm workin on front suspension thatbs made up of GT6 styleuprights
> with
> TR4 style hubs.  Theuprights are like the GT6 unit except that they
> are
> drilled for the TR4 taperedaxle (smaller than the GT6 axle). Ibve seen
> these
> uprights on some of the more esotericBritish bgarden shedb cars
> (TVRbs,
> Elvabs and Loti) so theybre not totallystrange.  BUT, I want to put a
> set
> of thetrunionless uprights on this ride so that I do not suffer the
> indignity
> ofwatching one of the wheels leave the car at some inopportune moment!
>
>
>
> Herebs thefly in the ointmentb&they only make them for the GT6 stub
> axle.
>
>
> So, I can find a bearing that will fit the outer end of the GTaxle and
> TR hub,
> but not the inner. Seems the closest I can find is about 50 thou
> larger in
> O.D.  So before I chuck the hub up and bore thebearing hole in the
> inner TR
> hub largerb& does anyone have a way to accomplish thissetup without my
> having
> to unscrupulously modify the TR hubs?
>
>
> Nick in Nor Cal
> _______________________________________________
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>
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