Subject: Re: [Fot] FW: variation in Timken carrier bearing width?

From: Jason Sukey <[email-masked]>
Date: Fri, 30 Sep 2016 23:05:49 -0400

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Jim, do you know the set that includes the 15123/15245 bearing/race used in
the earlier gt6/spit differential?
The sets for the later differentials are easy to find, but I've had no luck
with finding the earlier ones in a set.
Jason

On Sep 30, 2016 8:21 PM, "Jim Cox" <[email-masked]> wrote:

------------------------------

.012 would not surprise me for stack height variation. My guess is that he
ordered by bearing NUMBER-not by bearing assembly. There is a thing called
=E2=80=9Chalf stand tolerance=E2=80=9D that would cut his error in at least=
 half. There
isn=E2=80=99t really an issue here-he is just seeing the standard deviation=
 in
assemblies, and that is why they have to use shims to get it perfect. The
original assembly probably has that stand tolerance and over time that
information has been lost.  Each assembly throws off a unique set of
dimensions. MORE SHIMS!!!!!

*Jim Cox*

*800.335.3063 <800.335.3063> /417.849.2095 <417.849.2095>*

*www.bransonauction.com <http://www.bransonauction.com>*

------------------------------

*From:* Fot [mailto:[email-masked] <[email-masked]>=
]
*On Behalf Of *John Styduhar
*Sent:* Thursday, September 29, 2016 11:52 AM
*To:* Jason Sukey
*Cc:* FOT list

*Subject:* Re: [Fot] variation in Timken carrier bearing width?

Some of the USA-stamped Timkens even look cheap when you compare them to
the England-made.  I wouldn't be surprised if they were made overseas. If
there is nothing wrong with your old bearings, why replace them?

On Thu, Sep 29, 2016 at 8:59 AM, Jason Sukey <[email-masked]> wrote:

Has anyone else noticed rather large variation in carrier bearing width's
when rebuilding a spitfire differential?  The one I'm building right now,
I've replaced what I suspect are the original bearings (Timken England)
with brand new Timken USA bearings.  In order to reach the required .004"
preload, it will require .012" LESS total shim than what was in there
originally.  That seems like a big difference with the only variable being
new bearings.  I'm using the same housing, same carrier, the bearings
visually look to be fully pressed home.  Anyone else experience this?

Thanks,

Jason Sukey

_______________________________________________
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Archive: http://www.team.net/archive
options/fot/[email-masked]

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<p dir=3D"ltr">Jim, do you know the set that includes the 15123/15245 beari=
ng/race used in the earlier gt6/spit differential?=C2=A0 <br>
The sets for the later differentials are easy to find, but I&#39;ve had no =
luck with finding the earlier ones in a set.<br>
Jason</p>
<div class=3D"gmail_extra"><br><div class=3D"gmail_quote">On Sep 30, 2016 8=
:21 PM, &quot;Jim Cox&quot; &lt;<a href=3D"mailto:[email-masked]">=
[email-masked]</a>&gt; wrote:<br type=3D"attribution"><blockquote =
class=3D"quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;paddi=
ng-left:1ex">

<u></u>
<u></u>

<div lang=3D"EN-US" link=3D"blue" vlink=3D"blue">

<div class=3D"m_-5081728804061909181Section1">

<div>

<p class=3D"MsoNormal"><span style=3D"color:navy"><u></u>=C2=A0<u></u></spa=
n></p>

</div>

<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:Arial;co=
lor:navy"><u></u>=C2=A0<u></u></span></p>

<div>

<div class=3D"MsoNormal" align=3D"center" style=3D"text-align:center">

<hr size=3D"2" width=3D"100%" align=3D"center">

</div>

<p class=3D"MsoNormal"><b><span style=3D"font-size:10.0pt;font-family:Tahom=
a"><span>=C2=A0</span></span></b><u></u><u></u></p>

</div>

<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>

<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:Calibri;=
color:#1f497d">.012 would not surprise me for stack height variation. My gu=
ess
is that he ordered by bearing NUMBER-not by bearing assembly. There is a th=
ing
called =E2=80=9Chalf stand tolerance=E2=80=9D that would cut his error in a=
t least
half. There isn=E2=80=99t really an issue here-he is just seeing the standa=
rd
deviation in assemblies, and that is why they have to use shims to get it
perfect. The original assembly probably has that stand tolerance and over t=
ime
that information has been lost.=C2=A0 Each assembly throws off a unique set=
 of
dimensions. MORE SHIMS!!!!!</span><span style=3D"font-size:11.0pt;font-fami=
ly:Calibri;color:navy"><u></u><u></u></span></p>

<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:Arial;co=
lor:navy"><u></u>=C2=A0<u></u></span></p>

<div>

<p class=3D"m_-5081728804061909181MsoAutoSig"><b><span style=3D"font-size:1=
4.0pt;font-family:&quot;Lucida Sans&quot;;color:navy">Jim Cox<u></u><u></u>=
</span></b></p>

<p class=3D"m_-5081728804061909181MsoAutoSig"><b><span style=3D"font-size:1=
4.0pt;font-family:&quot;Lucida Sans&quot;;color:navy"><a href=3D"tel:800.33=
5.3063" value=3D"+18003353063" target=3D"_blank">800.335.3063</a> /<a href=
=3D"tel:417.849.2095" value=3D"+14178492095" target=3D"_blank">417.849.2095=
</a><u></u><u></u></span></b></p>

<p class=3D"m_-5081728804061909181MsoAutoSig"><b><span style=3D"font-size:1=
4.0pt;font-family:&quot;Lucida Sans&quot;;color:navy"><a href=3D"http://www=
.bransonauction.com" target=3D"_blank">www.bransonauction.com</a><u></u><u>=
</u></span></b></p>

<p class=3D"MsoNormal"><span style=3D"color:navy"><img border=3D"0" width=
=3D"432" height=3D"108" id=3D"m_-5081728804061909181_x0000_i1025" src=3D"ci=
d:[email-masked]"><u></u><u></u></span></p>

</div>

<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:Arial;co=
lor:navy"><u></u>=C2=A0<u></u></span></p>

<div>

<div class=3D"MsoNormal" align=3D"center" style=3D"text-align:center">

<hr size=3D"2" width=3D"100%" align=3D"center">

</div>

<p class=3D"MsoNormal"><b><span style=3D"font-size:10.0pt;font-family:Tahom=
a">From:</span></b><span style=3D"font-size:10.0pt;font-family:Tahoma"> Fot=
 [<a href=3D"mailto:[email-masked]" target=3D"_blank">mailto:fo=
t-bounces@autox.<wbr>team.net</a>]
<b>On Behalf Of </b>John Styduhar<br>
<b>Sent:</b> Thursday, September 29, 2016 11:52 AM<br>
<b>To:</b> Jason Sukey<br>
<b>Cc:</b> FOT list<div class=3D"quoted-text"><br>
<b>Subject:</b> Re: [Fot] variation in Timken carrier bearing width?</div><=
/span><u></u><u></u></p>

</div>

<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>

<div>

<div>

<p class=3D"MsoNormal">Some of the USA-stamped Timkens even look cheap when=
 you compare
them to the England-made.=C2=A0 I wouldn&#39;t be surprised if they were ma=
de
overseas. If there is nothing wrong with your old bearings, why replace the=
m?<u></u><u></u></p>

</div>

</div><div class=3D"quoted-text">

<div>

<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>

<div>

<p class=3D"MsoNormal">On Thu, Sep 29, 2016 at 8:59 AM, Jason Sukey &lt;<a =
href=3D"mailto:[email-masked]" target=3D"_blank">[email-masked]</a>&gt;=
 wrote:<u></u><u></u></p>

<div>

<p class=3D"MsoNormal">Has anyone else noticed rather large variation in ca=
rrier
bearing width&#39;s when rebuilding a spitfire differential?=C2=A0 The one =
I&#39;m
building right now, I&#39;ve replaced what I suspect are the original beari=
ngs
(Timken <u></u>England<u></u>) with brand
new Timken <u></u><u></u>USA<u></u><u></u>
bearings.=C2=A0 In order to reach the required .004&quot; preload, it will
require .012&quot; LESS total shim than what was in there originally.=C2=A0
That seems like a big difference with the only variable being new
bearings.=C2=A0 I&#39;m using the same housing, same carrier, the bearings =
visually
look to be fully pressed home.=C2=A0 Anyone else experience this?<u></u><u>=
</u></p>

<div>

<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>

</div>

<div>

<p class=3D"MsoNormal">Thanks,<u></u><u></u></p>

<div>

<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>

</div>

<div>

<p class=3D"MsoNormal">Jason Sukey<u></u><u></u></p>

</div>

</div>

</div>

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