| Ball bearings [message #460895] |
Mon, 03 October 2005 15:50 |
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Not necessarily a motorcycle only question but
- how do bearing manufacturers make their spherical balls?
I've asked many a knowledgeable person & never received a reply.
Bummers.
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| Re: Ball bearings [message #460896 ] |
Mon, 03 October 2005 16:54 |
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Bummers wrote:
> Not necessarily a motorcycle only question but
> - how do bearing manufacturers make their spherical balls?
>
> I've asked many a knowledgeable person & never received a reply.
> Bummers.
What, they don't have Google where you live?
Search for
how ball bearings are made
Basically, they're squished into shape, then trimmed, then polished,
and then -- sorted for grade.
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| Re: Ball bearings [message #460927 ] |
Mon, 03 October 2005 23:32 |
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My computer wasn't working (blush)
Michael Sierchio wrote:
> Bummers wrote:
>
>> Not necessarily a motorcycle only question but
>> - how do bearing manufacturers make their spherical balls?
>>
>> I've asked many a knowledgeable person & never received a reply.
>> Bummers.
>
>
> What, they don't have Google where you live?
>
> Search for
> how ball bearings are made
>
> Basically, they're squished into shape, then trimmed, then polished,
> and then -- sorted for grade.
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| Re: Ball bearings [message #460944 ] |
Tue, 04 October 2005 06:18 |
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Bummers wrote:
> Not necessarily a motorcycle only question but
> - how do bearing manufacturers make their spherical balls?
>
> I've asked many a knowledgeable person & never received a reply.
> Bummers.
http://science.howstuffworks.com/question513.htm
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| Re: Ball bearings [message #466534 ] |
Tue, 04 October 2005 19:46 |
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Matt wrote:
> Bummers wrote:
> > Not necessarily a motorcycle only question but
> > - how do bearing manufacturers make their spherical balls?
> >
> > I've asked many a knowledgeable person & never received a reply.
> > Bummers.
>
> http://science.howstuffworks.com/question513.htm
Thaks for googling that site up, Matt. I knew that the process was
*centerless grinding*, and my tooling and manufacturing engineering
textbooks do have some 2-dimensional drawings of centerless grinding
tooling, but I just couldn't envision the tooling in THREE dimensions.
Grooved rotating and stationary plates! Awright! Farm out!
And the first part of the process also involves what is called "crush
forming", before the centerless grinding process and polishing begins.
Let us now boldly go forth and challenge Fafnir and Timken for market
share while chanting, "crush forming" and "centerless grinding"!
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| Re: Ball bearings [message #466535 ] |
Tue, 04 October 2005 21:19 |
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krusty kritter wrote:
> *centerless grinding*
Maybe "axisless grinding" would be more descriptive.
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| Re: Ball bearings [message #466537 ] |
Tue, 04 October 2005 23:09 |
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Bummers wrote:
> My computer wasn't working (blush)
>
> Michael Sierchio wrote:
<<Snip>>
> > What, they don't have Google where you live?
<<Snip>>
I'm sorry, but the Devil is making me ask how you posted with a
non-working computer.
Later,
Charlie
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| Re: Ball bearings [message #466540 ] |
Wed, 05 October 2005 00:39 |
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Matt wrote:
> krusty kritter wrote:
> > *centerless grinding*
>
> Maybe "axisless grinding" would be more descriptive.
It's not in any of my tooling and manufacturing engineering textbooks,
"Centerless grinding" means that there's no headstock with a 3 or 4 jaw
chuck to turn the workpiece and no tailstock to support it. "Center"
would refer to the center of the head stock and the tailstock on a
lathe. The tailstock would have a conical-shaped "dead center"
supporting the end of a long workpiece to keep it from whipping around.
But the length of the lathe bed determines how long a cylindrical work
piece can be ground "on center".
In centerless cylindrical grinding, there's no limit to the length of
the workpiece, which is spun by the grinding wheel and controlled by
the regulating wheel.
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| Re: Ball bearings [message #466541 ] |
Wed, 05 October 2005 01:14 |
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krusty kritter wrote:
> Matt wrote:
>
>>krusty kritter wrote:
>>
>>>*centerless grinding*
>>
>>Maybe "axisless grinding" would be more descriptive.
>
>
> It's not in any of my tooling and manufacturing engineering textbooks,
Google has never heard of it either.
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| Re: Ball bearings [message #466554 ] |
Thu, 06 October 2005 06:30 |
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If you really want to boggle your mind, ask yourself how do they make
hypodermic needles?
A Google search will prove pointless; there is a secret propriatary process
involved. You will never be allowed to visit the manufacturing facility
and observe, nor will you even be shown the machines used to fabricate
them. Not even a doctor or pharmacist is ever allowed to be present such
is the secrecy. I guarantee you will never see its secrets exposed on
Discovery Channel's Modern Marvels.
The needle is stainless steel, a difficult metal to work. It is a seamless
tube of incredible precision. Put a micrometer to one and it is absolutely
round, straight and of uniform diameter along its length. But the real
secret is not in making a cylinder like a drill stock, but the bore which
runs down its length. It is a perfect bore and uniform in diameter as
measured with a tiny numbered drill for a gauge. I've done that close
inspection and it really is a marvel of engineering on a very small scale.
The business end is a perfectly sharp bevel with no burrs. To top it all
off, hypos are mass produced at low cost!! All in all it has to be the
most difficult thing on this Earth to manufacture, even much more so than a
sewing needle (which itself is a challenge to fabricate).
My guess is the machines are designed in secrecy in Switzerland or Germany.
No other culture could do it.
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| Re: Ball bearings [message #466559 ] |
Thu, 06 October 2005 10:52 |
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Without knowing anything about it, but having drawn some very tiny (makes
the smalles hypo seem huge) glass pippettes, I'd expect that the process has
something to do with taking the smallest possible extruded tubing, and
drawing it while hot.
Al...
"Nomen Nescio" <nobody [at] dizum.com> wrote in message
news:a7fa1cff36c5e81f5ab597826de22f69 [at] dizum.com...
> If you really want to boggle your mind, ask yourself how do they make
> hypodermic needles?
>
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| Go away, Nomen Nescio! [message #466560 ] |
Thu, 06 October 2005 16:14 |
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Nomen Nescio wrote:
> If you really want to boggle your mind, ask yourself (snip!)
Ask yourself, "WTFGAS?"
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| Re: Ball bearings [message #466561 ] |
Thu, 06 October 2005 16:39 |
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Nomen Nescio wrote:
> If you really want to boggle your mind, ask yourself how do they make
> hypodermic needles?
>
> A Google search will prove pointless; there is a secret propriatary process
> involved.
More mindless drivel -- there are patents, long since expired, which
teach (as all patents must) how to make these. Go away, idiot.
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| Re: Ball bearings [message #470748 ] |
Sun, 09 October 2005 22:01 |
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Buddy of mine works in a welding rod factory where they make .035" MIG
wire with flux in the middle miles at a time. Same principle, not
rocket science, no secret machines. Perhaps you are from the past,
traveling here in a time machine & awed by modern technology or, more
likely, just a stupid idiot. Good luck.
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| Re: Ball bearings [message #475500 ] |
Mon, 10 October 2005 16:30 |
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Nomen Nescio wrote:
> If you really want to boggle your mind, ask yourself how do they make
> hypodermic needles?
<<Snip>>
>
> The needle is stainless steel, a difficult metal to work. It is a seamless
> tube of incredible precision. Put a micrometer to one and it is absolutely
> round, straight and of uniform diameter along its length. But the real
> secret is not in making a cylinder like a drill stock, but the bore which
> runs down its length. It is a perfect bore and uniform in diameter as
> measured with a tiny numbered drill for a gauge. I've done that close
> inspection and it really is a marvel of engineering on a very small scale.
> The business end is a perfectly sharp bevel with no burrs. To top it all
> off, hypos are mass produced at low cost!! All in all it has to be the
> most difficult thing on this Earth to manufacture, even much more so than a
> sewing needle (which itself is a challenge to fabricate).
>
> My guess is the machines are designed in secrecy in Switzerland or Germany.
> No other culture could do it.
What a [at] #$%ing troll. It's drawn stainless steel tubing. BFD. Cut on
an angle on the end. BFD. Not even remotely close to the most
difficult thing on earth to manufacture. And Made in USA, BTW.
http://www.nesmalltube.com/index.html
Stainless is relatively easy to work when compared to hard stuff.
Later,
Charlie
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| Re: Ball bearings [message #475501 ] |
Mon, 10 October 2005 17:10 |
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Charlie Gary wrote:
> Nomen Nescio wrote:
> > If you really want to boggle your mind, ask yourself how do they make
> > hypodermic needles?
> What a [at] #$%ing troll.
Unfortunately, Nomen Nescio's trolls are successful whenever somebody
wastes his time answering them.
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| Re: Ball bearings [message #475502 ] |
Mon, 10 October 2005 17:31 |
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krusty kritter wrote:
> Charlie Gary wrote:
> > Nomen Nescio wrote:
> > > If you really want to boggle your mind, ask yourself how do they make
> > > hypodermic needles?
>
> > What a [at] #$%ing troll.
>
> Unfortunately, Nomen Nescio's trolls are successful whenever somebody
> wastes his time answering them.
I know. Usually I resist, but his ignorance was just sooooo blatant
this time, I couldn't help myself.
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| Re: Ball bearings [message #693284 ] |
Mon, 10 April 2006 04:24 |
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Alan Adrian wrote:
> Without knowing anything about it, but having drawn some very tiny (makes
> the smalles hypo seem huge) glass pippettes, I'd expect that the process has
> something to do with taking the smallest possible extruded tubing, and
> drawing it while hot.
20 years ago my mom's company made steel tubing smaller than a human
hair. Now it's a parking lot.
--
Cheers,
Bev
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
What if there were no hypothetical questions?
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| Re: Ball bearings [message #693286 ] |
Mon, 10 April 2006 04:40 |
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On Sun, 09 Apr 2006 19:24:44 -0700, The Real Bev
<bashley101+usenet [at] gmail.com> wrote:
>Alan Adrian wrote:
>
>> Without knowing anything about it, but having drawn some very tiny (makes
>> the smalles hypo seem huge) glass pippettes, I'd expect that the process has
>> something to do with taking the smallest possible extruded tubing, and
>> drawing it while hot.
>
>20 years ago my mom's company made steel tubing smaller than a human
>hair. Now it's a parking lot.
What happened, did she push the wrong button ?
--
Click here every day to feed an animal that needs you today !!!
http://www.theanimalrescuesite.com/
Paul ( pjm [at] pobox . com ) - remove spaces to email me
'Some days, it's just not worth chewing through the restraints.'
'With sufficient thrust, pigs fly just fine.'
HVAC/R program for Palm PDA's
Free demo now available online http://pmilligan.net/palm/
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| Re: Ball bearings [message #693289 ] |
Mon, 10 April 2006 05:25 |
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Sorry about replying to an old article, I just subscribed and downloaded
everything. Only a couple thousand left to go...
..p.jm [at] see_my_sig_for_address.com wrote:
> On Sun, 09 Apr 2006 19:24:44 -0700, The Real Bev
> <bashley101+usenet [at] gmail.com> wrote:
>
>>Alan Adrian wrote:
>>
>>> Without knowing anything about it, but having drawn some very tiny (makes
>>> the smalles hypo seem huge) glass pippettes, I'd expect that the process has
>>> something to do with taking the smallest possible extruded tubing, and
>>> drawing it while hot.
>>
>>20 years ago my mom's company made steel tubing smaller than a human
>>hair. Now it's a parking lot.
>
> What happened, did she push the wrong button ?
The same thing that happened to the rest of the US steel industry. They
made tubing for Harley at one time. She said toward the end if you
ordered American steel it came late, wrong and rusty. If you ordered
Japanese steel and had a problem, an executive would fly over and
disembowel himself in the parking lot. Well, not really, but they
brought gifts and apologies and made everything right.
--
Cheers,
Bev
+++++++++++++++++++++++++++++++++++++++++++++++++
Little Mary took her skis upon the snow to frisk.
Wasn't she a silly girl her little * ?
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| Re: Ball bearings [message #693293 ] |
Mon, 10 April 2006 08:26 |
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The Real Bev <bashley101+usenet [at] gmail.com> wrote:
> Sorry about replying to an old article, I just subscribed and downloaded
> everything. Only a couple thousand left to go...
>
> .p.jm [at] see_my_sig_for_address.com wrote:
>
> > On Sun, 09 Apr 2006 19:24:44 -0700, The Real Bev
> > <bashley101+usenet [at] gmail.com> wrote:
> >
> >>Alan Adrian wrote:
> >>
> >>> Without knowing anything about it, but having drawn some very tiny (makes
> >>> the smalles hypo seem huge) glass pippettes, I'd expect that the
> >>> process has something to do with taking the smallest possible extruded
> >>> tubing, and drawing it while hot.
> >>
> >>20 years ago my mom's company made steel tubing smaller than a human
> >>hair. Now it's a parking lot.
> >
> > What happened, did she push the wrong button ?
>
> The same thing that happened to the rest of the US steel industry. They
> made tubing for Harley at one time.
And the US steel industry decided that building aircraft carriers was
easier on raw material supply.....
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| Re: Ball bearings [message #701830 ] |
Tue, 11 April 2006 01:38 |
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The Real Bev wrote:
> Alan Adrian wrote:
>
> > Without knowing anything about it, but having drawn some very tiny (makes
> > the smalles hypo seem huge) glass pippettes, I'd expect that the process has
> > something to do with taking the smallest possible extruded tubing, and
> > drawing it while hot.
>
> 20 years ago my mom's company made steel tubing smaller than a human
> hair. Now it's a parking lot.
Maybe it's just the deja reader, but it looks to me as if you're
replying
to six month old threads. Not that I especially care, just curious.
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| Re: Ball bearings [message #701835 ] |
Tue, 11 April 2006 04:56 |
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Rob Kleinschmidt wrote:
> The Real Bev wrote:
>> Alan Adrian wrote:
>>
>>> Without knowing anything about it, but having drawn some very
>>> tiny (makes the smalles hypo seem huge) glass pippettes, I'd
>>> expect that the process has something to do with taking the
>>> smallest possible extruded tubing, and drawing it while hot.
>>
>> 20 years ago my mom's company made steel tubing smaller than a
>> human hair. Now it's a parking lot.
>
> Maybe it's just the deja reader, but it looks to me as if you're
> replying to six month old threads. Not that I especially care, just
> curious.
Just subscribed and downloaded all the headers. Didn't notice the date
until later. Charter keeps stuff a LOOOOONG time.
--
Cheers, Bev
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ^^^
"Nobody ever went broke underestimating the intelligence of the
American Public." -- H.L. Mencken
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