Subject: Re: [Spridgets] Heating a bearing for interference fit ... good idea or not?

From: Rick Fisk via Spridgets <[email-masked]>
Date: Sun, 12 Apr 2015 12:01:49 -0400

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That only works in Canada where they speak that 100 C crap. =20

Sent from my keyboard

> On Apr 12, 2015, at 11:27 AM, Trevor Jessie via Spridgets <spridgets@autox=
.team.net> wrote:
>=20
> Warning ... foul language.=20
>=20
> https://www.youtube.com/watch?v=3DLVODJm05plw#t=3D199
> ------------------------
>=20
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From: Brian Morse via Spridgets <[email-masked]>
Date: Sun, 12 Apr 2015 20:28:05 -0400

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The way I learned it in tool and die school- heating a solid cylindrical
object actually causes the ID to shrink, not enlarge.

Maybe bearings are different animals?

3wheel in A2

On Sunday, April 12, 2015, Billy Zoom via Spridgets <
[email-masked]> wrote:

>  What=E2=80=99s wrong with a pan of oil on a hot plate?
>

--=20
Sent from my Tardis

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The way I learned it in tool and die school- heating a solid cylindrical ob=
ject actually=C2=A0causes the ID to shrink, not enlarge.<div><br></div><div=
>Maybe bearings are different animals?</div><div><br></div><div>3wheel<span=
></span> in A2<br><br>On Sunday, April 12, 2015, Billy Zoom via Spridgets &=
lt;<a href=3D"mailto:[email-masked]">[email-masked]</a>=
&gt; wrote:<br><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex=
;border-left:1px #ccc solid;padding-left:1ex">

<div>
<font face=3D"Geneva, Verdana, Helvetica, Arial"><span style=3D"font-size:1=
4.0px">What=E2=80=99s wrong with a pan of oil on a hot plate?</span></font>
</div>

</blockquote></div><br><br>-- <br>Sent from my Tardis<br>

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[email-masked]

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From: Ron Soave via Spridgets <[email-masked]>
Date: Sun, 12 Apr 2015 21:00:16 -0500

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That only happens at very specific and extreme temperatures when the metal e=
ssentially flows. Heat a tube and its ID and OD get larger.

Ron Soave

> On Apr 12, 2015, at 7:28 PM, Brian Morse via Spridgets <[email-masked]=
am.net> wrote:
>=20
> The way I learned it in tool and die school- heating a solid cylindrical o=
bject actually causes the ID to shrink, not enlarge.
>> On Sunday, April 12, 2015, Billy Zoom via Spridgets <[email-masked]=
.net> wrote:
> Unsubscribe/Manage: http://autox.team.net/mailman/options/spridgets/soaver=
[email-masked]

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<html><head><meta http-equiv=3D"content-type" content=3D"text/html; charset=3D=
utf-8"></head><body dir=3D"auto"><div>That only happens at very specific and=
 extreme temperatures when the metal essentially flows. Heat a tube and its I=
D and OD get larger.<br><br>Ron Soave</div><div><br>On Apr 12, 2015, at 7:28=
 PM, Brian Morse via Spridgets &lt;<a href=3D"mailto:[email-masked]=
t">[email-masked]</a>&gt; wrote:<br><br></div><blockquote type=3D"=
cite"><div>The way I learned it in tool and die school- heating a solid cyli=
ndrical object actually&nbsp;causes the ID to shrink, not enlarge.<div><br><=
/div><div>Maybe bearings are different animals?</div><div><br></div><div>3wh=
eel<span></span> in A2<br><br>On Sunday, April 12, 2015, Billy Zoom via Spri=
dgets &lt;<a href=3D"mailto:[email-masked]">[email-masked]=
et</a>&gt; wrote:<br><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0=
 .8ex;border-left:1px #ccc solid;padding-left:1ex">

<div>
<font face=3D"Geneva, Verdana, Helvetica, Arial"><span style=3D"font-size:14=
.0px">What=E2=80=99s wrong with a pan of oil on a hot plate?</span></font>
</div>

</blockquote></div><br><br>-- <br>Sent from my Tardis<br>
</div></blockquote><blockquote type=3D"cite"><div><span>--------------------=
----</span><br><span></span><br><span><a href=3D"mailto:[email-masked]=
.net">[email-masked]</a></span><br><span></span><br><span>Donate: <=
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From: Brian Morse via Spridgets <[email-masked]>
Date: Sun, 12 Apr 2015 22:09:56 -0400

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I responded to David Lieb off list on this.

So I used to work for a big German auto parts manufacturer- we had cast
cylinder liners made in Brazil that eventually ended up in inline GM
aluminum blocks.  Part of their process was to chill the blocks and the
liners to allow a "slip fit" in their assembly process, which lead to an
interference fit before they were machined.

I should have been more specific...

3wheel in A2

On Sunday, April 12, 2015, Ron Soave <[email-masked]> wrote:

> That only happens at very specific and extreme temperatures when the meta=
l
> essentially flows. Heat a tube and its ID and OD get larger.
>
> Ron Soave
>
> On Apr 12, 2015, at 7:28 PM, Brian Morse via Spridgets <
> [email-masked]
> <javascript:_e(%7B%7D,'cvml',[email-masked]');>> wrote:
>
> <javascript:_e(%7B%7D,'cvml',[email-masked]');>> wrote:
>
> --
> <javascript:_e(%7B%7D,'cvml',[email-masked]');>
>
> Unsubscribe/Manage:
> http://autox.team.net/mailman/options/spridgets/[email-masked]
>
>

--=20
Sent from my Tardis

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I responded to David Lieb off list on this.<div><br></div><div>So I used to=
 work for a big German auto parts manufacturer- we had cast cylinder liners=
 made in Brazil that eventually ended up in inline GM aluminum blocks.=C2=
=A0 Part of their process was to chill the blocks and the liners to allow a=
 &quot;slip fit&quot; in their assembly process, which lead to an interfere=
nce fit before they were machined.</div><div><br></div><div>I should have b=
een more specific...</div><div><br></div><div>3wheel in A2<span></span><br>=
<br>On Sunday, April 12, 2015, Ron Soave &lt;<a href=3D"mailto:soavero@yaho=
o.com">[email-masked]</a>&gt; wrote:<br><blockquote class=3D"gmail_quote=
" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><=
div dir=3D"auto"><div>That only happens at very specific and extreme temper=
atures when the metal essentially flows. Heat a tube and its ID and OD get =
larger.<br><br>Ron Soave</div><div><br>On Apr 12, 2015, at 7:28 PM, Brian M=
orse via Spridgets &lt;<a href=3D"javascript:_e(%7B%7D,&#39;cvml&#39;,&#39;=
[email-masked]&#39;);" target=3D"_blank">[email-masked]=
</a>&gt; wrote:<br><br></div><blockquote type=3D"cite"><div>The way I learn=
ed it in tool and die school- heating a solid cylindrical object actually=
=C2=A0causes the ID to shrink, not enlarge.<div><br></div><div>Maybe bearin=
gs are different animals?</div><div><br></div><div>3wheel<span></span> in A=
2<br><br>On Sunday, April 12, 2015, Billy Zoom via Spridgets &lt;<a href=3D=
"javascript:_e(%7B%7D,&#39;cvml&#39;,&#39;[email-masked]&#39;);" =
target=3D"_blank">[email-masked]</a>&gt; wrote:<br><blockquote cl=
ass=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;p=
adding-left:1ex">

<div>

</blockquote></div><br><br>-- <br>Sent from my Tardis<br>
</div></blockquote><blockquote type=3D"cite"><div><span>-------------------=
-----</span><br><span></span><br><span><a href=3D"javascript:_e(%7B%7D,&#39=
;cvml&#39;,&#39;[email-masked]&#39;);" target=3D"_blank">spridget=
[email-masked]</a></span><br><span></span><br><span>Donate: <a href=3D"ht=
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/blockquote></div></blockquote></div><br><br>-- <br>Sent from my Tardis<br>

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From: Linda Grunthaner via Spridgets <[email-masked]>
Date: Sun, 19 Apr 2015 12:34:20 -0400

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Interesting Billy, I'm glad as much as I want either scooter I am not
willing to work so hard on them : )
Lin

On Sun, Apr 12, 2015 at 9:28 PM, Billy Zoom via Spridgets <
[email-masked]> wrote:

>  That was the procedure outlined in the Vespa factory shop manuals, and
> it did make the bearings fit on the crankshafts when they absolutely
> wouldn=E2=80=99t at room temperature. There was a lot of hot oil and free=
zers
> involved in rebuilding Vespas and Lambrettas.
>
> ------------------------
>
> [email-masked]
>
> http://autox.team.net/mailman/options/spridgets/[email-masked]
>
>

--=20
"Pay if forward" in honor of Frank Clarici III, Spritenut

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<div dir=3D"ltr">Interesting Billy, I&#39;m glad as much as I want either s=
cooter I am not willing to work so hard on them : )<div>Lin</div></div><div=
 class=3D"gmail_extra"><br><div class=3D"gmail_quote">On Sun, Apr 12, 2015 =
at 9:28 PM, Billy Zoom via Spridgets <span dir=3D"ltr">&lt;<a href=3D"mailt=
o:[email-masked]" target=3D"_blank">[email-masked]</a>&=
gt;</span> wrote:<br><blockquote class=3D"gmail_quote" style=3D"margin:0 0 =
0 .8ex;border-left:1px #ccc solid;padding-left:1ex">

<div>
<font face=3D"Geneva, Verdana, Helvetica, Arial"><span style=3D"font-size:1=
4.0px">That was the procedure outlined in the Vespa factory shop manuals, a=
nd it did make the bearings fit on the crankshafts when they absolutely wou=
ldn=E2=80=99t at room temperature. There was a lot of hot oil and freezers =
involved in rebuilding Vespas and Lambrettas.</span></font>
</div>

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ss=3D"gmail_signature"><div dir=3D"ltr"><span style=3D"font-size:small">&qu=
ot;Pay if forward&quot; in honor of Frank Clarici III, Spritenut</span><br>=
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