{"id":1762,"date":"2021-01-20T10:19:58","date_gmt":"2021-01-20T09:19:58","guid":{"rendered":"https:\/\/www.redhillballs.com\/produkty\/keramicke-kulicky\/kulicky-z-nitridu-kremiku-si3n4\/"},"modified":"2025-10-25T13:21:34","modified_gmt":"2025-10-25T11:21:34","slug":"gulicky-z-nitridu-kremika-si3n4","status":"publish","type":"page","link":"https:\/\/www.redhillballs.com\/sk\/produkty\/keramicke-gulicky\/gulicky-z-nitridu-kremika-si3n4\/","title":{"rendered":"Guli\u010dky z Nitridu Krem\u00edka Si3N4"},"content":{"rendered":"<h2>\ud83d\udee0\ufe0f <a href=\"https:\/\/en.wikipedia.org\/wiki\/Ball_%28bearing%29?utm_source=chatgpt.com\">Keramick\u00e9 guli\u010dky z nitridu krem\u00edka (Si\u2083N\u2084) \u2013 vysokov\u00fdkonn\u00e9 presn\u00e9 komponenty<\/a><\/h2>\n<p>Guli\u010dky z nitridu krem\u00edka (Si\u2083N\u2084) s\u00fa pokro\u010dil\u00e9 komponenty zn\u00e1me v\u00fdnimo\u010dnou tvrdos\u0165ou, n\u00edzkou hustotou a vynikaj\u00facou tepelnou a oteruvzdornou odolnos\u0165ou. Tieto vlastnosti ich predur\u010duj\u00fa pre n\u00e1ro\u010dn\u00e9 aplik\u00e1cie v letectve, v hybridn\u00fdch aj celokeramick\u00fdch lo\u017eisk\u00e1ch a vo vysokor\u00fdchlostn\u00fdch rota\u010dn\u00fdch syst\u00e9moch.<\/p>\n<h3>\ud83d\udd27 K\u013e\u00fa\u010dov\u00e9 technick\u00e9 \u0161pecifik\u00e1cie<\/h3>\n<ul>\n<li><strong>Hustota<\/strong>: ~3,2\u20133,3 g\/cm\u00b3 (~40 % ocele)<\/li>\n<li><strong>Tvrdos\u0165<\/strong>: &gt;2000 Knoop (\u2248 15 GPa Vickers)<\/li>\n<li><strong>Pevnos\u0165 v ohybe<\/strong>: ~800\u20131000 MPa<\/li>\n<li><strong>Pevnos\u0165 v tlaku<\/strong>: ~2500\u20133000 MPa<\/li>\n<li><strong>Modul pru\u017enosti<\/strong>: ~310\u2013320 GPa<\/li>\n<li><strong>Lomov\u00e1 h\u00fa\u017eevnatos\u0165 (K\u2081c)<\/strong>: ~6 MPa\u00b7m\u2070\u00b7\u2075<\/li>\n<li><strong>Tepeln\u00e1 vodivos\u0165<\/strong>: ~28\u201330 W\/(m\u00b7K)<\/li>\n<li><strong>S\u00fa\u010dinite\u013e tepelnej roz\u0165a\u017enosti (CTE)<\/strong>: ~3\u00d710\u207b\u2076 \/K<\/li>\n<li><strong>Elektrick\u00e1 rezistivita<\/strong>: &gt;10\u00b9\u00b2 \u03a9\u00b7cm (elektrick\u00fd izolant)<\/li>\n<li><strong>Prev\u00e1dzkov\u00e1 teplota<\/strong>: do ~1100\u20131200 \u00b0C<\/li>\n<li><strong>Triedy<\/strong>: ISO \/ ABMA G1\u2013G60<\/li>\n<li><strong>Rozsah priemerov<\/strong>: 0,5 mm \u2013 50 mm<\/li>\n<\/ul>\n<h3>\u2705 V\u00fdhody<\/h3>\n<ul>\n<li><strong>N\u00edzka hustota &amp; zn\u00ed\u017een\u00e1 odstrediv\u00e1 sila<\/strong> \u2013 \u013dah\u0161ie ne\u017e oce\u013e, umo\u017e\u0148uj\u00fa vy\u0161\u0161ie r\u00fdchlosti a ni\u017e\u0161ie energetick\u00e9 straty.<\/li>\n<li><strong>V\u00fdnimo\u010dn\u00e1 tvrdos\u0165 &amp; odolnos\u0165 vo\u010di opotrebeniu<\/strong> \u2013 Dlh\u00e1 \u017eivotnos\u0165 v n\u00e1ro\u010dn\u00fdch podmienkach.<\/li>\n<li><strong>Vysok\u00e1 tepeln\u00e1 stabilita &amp; n\u00edzka roz\u0165a\u017enos\u0165<\/strong> \u2013 Zachov\u00e1va integritu pri extr\u00e9mnych teplotn\u00fdch zmen\u00e1ch.<\/li>\n<li><strong>Elektrick\u00e1 izol\u00e1cia &amp; nemagnetick\u00e9 vlastnosti<\/strong> \u2013 Bezpe\u010dn\u00e9 pri motoroch, senzoroch a v magnetick\u00fdch poliach.<\/li>\n<li><strong>Vysok\u00e1 lomov\u00e1 h\u00fa\u017eevnatos\u0165<\/strong> \u2013 V\u00fdborn\u00e1 odolnos\u0165 proti mechanick\u00fdm r\u00e1zom.<\/li>\n<li><strong>Pred\u013a\u017een\u00e1 \u017eivotnos\u0165<\/strong> \u2013 Ni\u017e\u0161ie trenie zni\u017euje po\u017eiadavky na mazanie a \u00fadr\u017ebu.<\/li>\n<\/ul>\n<h3>\ud83d\udd04 Aplik\u00e1cie guli\u010diek z nitridu krem\u00edka<\/h3>\n<p>Guli\u010dky Si\u2083N\u2084 sa \u0161iroko pou\u017e\u00edvaj\u00fa vo vysokov\u00fdkonn\u00fdch aplik\u00e1ci\u00e1ch, vr\u00e1tane:<\/p>\n<ul>\n<li><strong>Hybridn\u00e9 a celokeramick\u00e9 lo\u017eisk\u00e1<\/strong> \u2013 Pre vysokor\u00fdchlostn\u00e9, n\u00edzkotrecie rota\u010dn\u00e9 platformy.<\/li>\n<li><strong>Leteck\u00e9 motory &amp; turb\u00edny<\/strong> \u2013 Overen\u00e9 v kritick\u00fdch pohonn\u00fdch a riadiacich syst\u00e9moch.<\/li>\n<li><strong>Elektromobily a motory<\/strong> \u2013 Poskytuj\u00fa izol\u00e1ciu a odolnos\u0165 v trak\u010dn\u00fdch syst\u00e9moch.<\/li>\n<li><strong>Gener\u00e1tory vetern\u00fdch turb\u00edn<\/strong> \u2013 Dlhodob\u00e1 spo\u013eahlivos\u0165 pri ve\u013ekom dynamickom za\u0165a\u017een\u00ed.<\/li>\n<li><strong>Polovodi\u010dov\u00e9 a medic\u00ednske zariadenia<\/strong> \u2013 Nemagnetick\u00e9, dielektrick\u00e9 vlastnosti pre citliv\u00e9 syst\u00e9my.<\/li>\n<li><strong>Priemyseln\u00e9 n\u00e1stroje &amp; vysokoteplotn\u00e9 stroje<\/strong> \u2013 Odoln\u00e9 vo\u010di teplu, chemik\u00e1li\u00e1m a opotrebeniu.<\/li>\n<\/ul>\n<h3>\ud83d\udce6 Dostupn\u00e9 triedy &amp; ve\u013ekosti<\/h3>\n<p>Guli\u010dky z nitridu krem\u00edka s\u00fa dostupn\u00e9 v r\u00f4znych presnostn\u00fdch triedach a ve\u013ekostiach:<\/p>\n<ul>\n<li><a href=\"https:\/\/www.redhillballs.com\/company\/precision-grades\/\"><strong>Triedy<\/strong>: G1, G5, G10 a\u017e G60<\/a><\/li>\n<li><strong>Rozsah priemerov<\/strong>: 0,5 mm \u2013 50 mm<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\ud83d\udee0\ufe0f Keramick\u00e9 guli\u010dky z nitridu krem\u00edka (Si\u2083N\u2084) \u2013 vysokov\u00fdkonn\u00e9 presn\u00e9 komponenty Guli\u010dky z nitridu krem\u00edka (Si\u2083N\u2084) s\u00fa pokro\u010dil\u00e9 komponenty zn\u00e1me v\u00fdnimo\u010dnou tvrdos\u0165ou, n\u00edzkou hustotou a vynikaj\u00facou tepelnou a oteruvzdornou odolnos\u0165ou. Tieto vlastnosti ich predur\u010duj\u00fa pre n\u00e1ro\u010dn\u00e9 aplik\u00e1cie v letectve, v hybridn\u00fdch aj celokeramick\u00fdch lo\u017eisk\u00e1ch a vo vysokor\u00fdchlostn\u00fdch rota\u010dn\u00fdch syst\u00e9moch. \ud83d\udd27 K\u013e\u00fa\u010dov\u00e9 technick\u00e9 \u0161pecifik\u00e1cie Hustota: ~3,2\u20133,3 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":8947,"parent":1761,"menu_order":1,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-1762","page","type-page","status-publish","has-post-thumbnail","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.8 (Yoast SEO v28.8) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Guli\u010dky z nitridu krem\u00edka Si3N4 \u2013 lo\u017eisk\u00e1, ventily, \u010derpadl\u00e1<\/title>\n<meta name=\"description\" content=\"Guli\u010dky z nitridu krem\u00edka pre vysokoot\u00e1\u010dkov\u00e9 lo\u017eisk\u00e1, sp\u00e4tn\u00e9 ventily a prietokomery; 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