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--></style></head><body>Na tohle se vždycky používal materiál NBR o tvrdosti 70 Shore, čili obyčejná "nitrilová" guma. Mechanická odolnost výborná, chemická a klimatická horší, ale pár let vydrží. O nějakém zatížení v tahu ale nemůže být řeč, modul pružnosti v tahu je zcela nepatrný (řádu 1 MPa), což je ale u pryže přímo záměr.<div><br></div><div>Aleš Procháska<br><br><br><div><strong>
Od:
</strong>
Pavel Urbancik <hw@itherm.cz>
<br>
<strong>
Komu:
</strong>
'HW-news' <hw-list@list.hw.cz>
<br>
<strong>
Odesláno:
</strong>
3.1.2018 15:11
<br>
<strong>
Předmět:
</strong>
RE: O-krouzek jaky material
<br><br><blockquote class="mcnt mori" style="margin:0 0 0 .8ex;border-left:1px solid #CCC;padding-left:1ex;"><div class="email-body"><div class="mcntWordSection1"><p class="mcntMsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US">Toto znam, v praci pouzivam s mensim prurezem, ale je dost tvrdy (tedy alespon ten co mam doma) a prokluzuje.</span></p><p class="mcntMsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"> </span></p><p class="mcntMsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US">Netusi nekdo ktery material je lepsi pro zatizeni v tahu</span><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US">?</span></p><p class="mcntMsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"> </span></p><p class="mcntMsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US">Pavel</span></p><p class="mcntMsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"> </span></p><p class="mcntMsoNormal"><span style="mso-fareast-language:EN-US"> </span></p><p class="mcntMsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> Hw-list [mailto:hw-list-bounces@list.hw.cz] <b>On Behalf Of </b>hwnews konference<br><b>Sent:</b> Mittwoch, 3. Januar 2018 12:50<br><b>To:</b> HW-news <hw-list@list.hw.cz><br><b>Subject:</b> Re: O-krouzek jaky material</span></p><p class="mcntMsoNormal"> </p><div><p class="mcntMsoNormal">Dd, ja na tyhle veci pouzivam PU reminky v metrazi....delku si svarim jakou potrebuji</p><div><p class="mcntMsoNormal"> </p></div><div><p class="mcntMsoNormal"><a href="https://www.ebay.com/itm/12-Feet-Transmission-Belt-for-Watchmaker-Lathe-Jewelers-Belt-Watchmakers-PU-3-6M-/281431791340?ssPageName=ADME:L:OC:US:3160" target="_blank">https://www.ebay.com/itm/12-Feet-Transmission-Belt-for-Watchmaker-Lathe-Jewelers-Belt-Watchmakers-PU-3-6M-/281431791340?ssPageName=ADME:L:OC:US:3160</a></p></div><div><p class="mcntMsoNormal"> </p></div><div><p class="mcntMsoNormal">RV</p></div></div><div><p class="mcntMsoNormal"> </p><div><p class="mcntMsoNormal">Dne 3. ledna 2018 11:51 Pavel Urbancik <<a href="mailto:hw@itherm.cz" target="_blank" title="Odeslat e-mail na adresu hw@itherm.cz" class="mailto">hw@itherm.cz</a>> napsal(a):</p><blockquote style="border:none;border-left:solid #CCCCCC 1.0pt;padding:0cm 0cm 0cm 6.0pt;margin-left:4.8pt;margin-right:0cm"><p class="mcntMsoNormal">Zdravim konferu,<br><br>Do 8mm promitacky bych potreboval reminek, podle vseho se tam hodi 50x5.<br>Rubena jich ma v nabidce dost, ale jaky material pouzit aby to vydrzelo.<br>Provizorne jsem tam dal tesneni z HT trubky a to prasklo po cca hodine.<br><br><br>Pavel<br><br><br><br>_______________________________________________<br>HW-list mailing list - sponsored by <a href="http://www.HW.cz" target="_blank">www.HW.cz</a><br><a href="mailto:Hw-list@list.hw.cz" title="Odeslat e-mail na adresu Hw-list@list.hw.cz" class="mailto" target="_blank">Hw-list@list.hw.cz</a><br><a href="http://list.hw.cz/mailman/listinfo/hw-list" target="_blank">http://list.hw.cz/mailman/listinfo/hw-list</a></p></blockquote></div><p class="mcntMsoNormal"> </p></div></div></div><br><br>_______________________________________________<br>HW-list mailing list - sponsored by www.HW.cz<br>Hw-list@list.hw.cz<br>http://list.hw.cz/mailman/listinfo/hw-list<br></blockquote></div></div></body></html>