[Fot] Fwd: TR6 inner shaft bearing

Tue Apr 14 08:57:22 MDT 2020

Guys,

I have rebuilt over a hundred of these over the years and can tell you that some of them will require up to 40 tons of pressure on a good press and good fitting press plates.  Please do not heat these up and quench or anything of the sort, same with the stock wheel hubs.  I have come across many flanges both inner and outer that had cracks running along the keyway slot and evidence of severe heating.  You are playing with disaster if these should completely fail under a load.  And as stated if the small step on the shaft has been removed by some hack get a new one or again disaster can happen.

There is only one way to fix these parts and that is the right way…..  I have been sickened by some of the means and ways dispersed..

Steve Yott

From: Fot <fot-bounces at autox.team.net> On Behalf Of fubog1 via Fot
Sent: Tuesday, April 14, 2020 7:58 AM
To: van.mulders.marcel at telenet.be
Cc: fot at autox.team.net
Subject: Re: [Fot] Fwd: TR6 inner shaft bearing

Yeah when a simple straightforward seal replacement turns into a nightmare job due to a stuck flange...

Again, it's not the correct/preferred method, but considering that there isn't normally any significant axial load on it, assembled with a little loctite green will keep the bearing in place, and it'll get the job done in those cases where a big $$ axle & flange are at risk of being damaged.

They usually come apart OK but every now & then I get one that won't.

If the press doesn't pop it, sometimes a heat flange to cherry & quench will, but I'm sure that doesn't do any good for the metallurgy...

Glen.

-----Original Message-----
To: fubog1 <fubog1 at aol.com <mailto:fubog1 at aol.com> >
Cc: fot <fot at autox.team.net <mailto:fot at autox.team.net> >
Sent: Tue, Apr 14, 2020 8:40 am
Subject: Re: [Fot] Fwd: TR6 inner shaft bearing

Hi Glen,

that is explaining the issue. It seems that lot's of these bearings have been replaced in that way by now!

Marcel

  _____  

Van: "fot" <fot at autox.team.net <mailto:fot at autox.team.net> >
Aan: "fot" <fot at autox.team.net <mailto:fot at autox.team.net> >
Verzonden: Dinsdag 14 april 2020 13:56:06
Onderwerp: Re: [Fot] Fwd:  TR6 inner shaft bearing

There's a slight step on the shaft that prevents inward movement of the bearing, relative to the shaft; if your shaft slid out, that step has been removed.

I've run into this several times, it's done in a last-ditch effort to change the bearing when the hub can't be removed.

Glen

Note... I'm not advocating this as a correct repair procedure

-----Original Message-----
From: van.mulders.marcel--- via Fot <fot at autox.team.net <mailto:fot at autox.team.net> >
To: fot <fot at autox.team.net <mailto:fot at autox.team.net> >
Sent: Tue, Apr 14, 2020 5:48 am
Subject: [Fot] Fwd: TR6 inner shaft bearing

  _____  

Van: "van mulders marcel" <van.mulders.marcel at telenet.be <mailto:van.mulders.marcel at telenet.be> >
Aan: "Chip Collingwood" <chip at theukmotorsports.com <mailto:chip at theukmotorsports.com> >
Verzonden: Dinsdag 14 april 2020 09:18:41
Onderwerp: Re: [Fot] TR6 inner shaft bearing

I discovered a couple of times that the bearing did move on the shaft by as much as 1/2". As a result the shaft had moved outwards by that amount. Is that common? Is there a simple fix?

Marcel

Aan: "Jay Galbreath" <tr4jay at gmail.com <mailto:tr4jay at gmail.com> >
Cc: "fot" <fot at autox.team.net <mailto:fot at autox.team.net> >
Verzonden: Zondag 12 april 2020 01:55:19
Onderwerp: Re: [Fot] TR6 inner shaft bearing

the flange fits on a tapered shaft which is the bear...the bearing doesn't take much at all...if you do happen to find a shop that can get it apart for you make sure you make a note of the bearing position on the shaft...take a measurement before you press it off for reference. I use a 50 ton press to get the flange apart...usually takes at least 20 tons...sometimes more...always wrap a towel around the assembly...dont think I've ever had one i couldn't get apart.

On Sat, Apr 11, 2020, 7:49 PM Jay Galbreath via Fot <fot at autox.team.net <mailto:fot at autox.team.net> > wrote:

Hah!  I just attempted that this week. The two stub shafts would NOT press out even with 10 tons and red hot from my firewrench. Scott Harper at Team Triumph came to my rescue and went through his stash to find a couple that did press out for him. So give him a call if you can't break them apart. Good Luck!  Jay     WPTA

On Sat, Apr 11, 2020 at 6:22 PM Michael Deweerd via Fot <fot at autox.team.net <mailto:fot at autox.team.net> > wrote:

Amici 

How much force is typically required to separate the driving flange from the shaft 

-- 

Mike Deweerd

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