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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>McMaster is also a great resource for bearing info. All I need is a caliper and their book/website and I have found most all I need. And as mentioned earlier, mostly measured in metric. Weird ones and some metric OEM, Motion always came through for us. <o:p></o:p></p><p class=MsoNormal>Brad.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><b>From:</b> AT <at-bounces@lists.antique-tractor.com> <b>On Behalf Of </b>Stephen Offiler<br><b>Sent:</b> Tuesday, February 25, 2020 5:45 AM<br><b>To:</b> Antique Tractor Email Discussion Group <at@lists.antique-tractor.com><br><b>Subject:</b> Re: [AT] Supposedly why our old tractors are not metric and a fairly simple tutorial<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal>Speaking of fittings - this probably won't be totally comprehensive, worldwide, but the info contained in this link has been adequate to get me by every time I am confronted by some oddball fitting. From this link you still need to hit, at the top of the page, "How To Identify And Measure Fittings"<o:p></o:p></p><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal><a href="https://www.mcmaster.com/standard-metal-pipe-fittings/=cde88b1872814775b41abc201f70a579k71xsig6">https://www.mcmaster.com/standard-metal-pipe-fittings/=cde88b1872814775b41abc201f70a579k71xsig6</a><o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>SO<o:p></o:p></p></div><div><p class=MsoNormal style='margin-bottom:12.0pt'><o:p> </o:p></p></div></div><p class=MsoNormal><o:p> </o:p></p><div><div><p class=MsoNormal>On Mon, Feb 24, 2020 at 9:17 PM John Hall <<a href="mailto:jtchall@nc.rr.com">jtchall@nc.rr.com</a>> wrote:<o:p></o:p></p></div><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0in;margin-bottom:5.0pt'><p class=MsoNormal>Fun fact. Did you know metric pipe threads are actually in inches? They <br>are actually 55 deg threadform (British Whitworth) but the pitch is in <br>metric. And the real fun part is that the rest of the planet can't even <br>decide how to spec them on drawing/print/blueprint. Different countries <br>have different designations for the same thing. Off the top of my head, <br>I think there are a combined 7 different ways of designating metric pipe <br>threads (taper and straight), as opposed to just 2. Now we won't split <br>hairs with short projection, dryseal or other specialty threads--lets <br>stick to 99.999% of pipe threads.<br><br>FWIW, I have 30 years in a machine shop and have continually used both <br>english and metric without an issue. Its the rest of the planet that <br>makes a big ordeal out of it, we just grab a print and go with it. <br>English, German, Japanese--its all the same--until we have to use <br>Translate Google to figure out the notes.<br><br>One more fun fact. Next time you need some roller bearings for your old <br>tractor and start measuring them only to find they aren't exactly <br>english, convert them to metric--you might ought to sit down first.<br><br>I won't even get into European conduit threads--I've only had to do them <br>twice.<br><br>John Hall<br><br><br>_______________________________________________<br>AT mailing list<br><a href="mailto:AT@lists.antique-tractor.com" target="_blank">AT@lists.antique-tractor.com</a><br><a href="http://lists.antique-tractor.com/listinfo.cgi/at-antique-tractor.com" target="_blank">http://lists.antique-tractor.com/listinfo.cgi/at-antique-tractor.com</a><o:p></o:p></p></blockquote></div></div></body></html>