{"id":1785,"date":"2021-01-20T10:32:14","date_gmt":"2021-01-20T09:32:14","guid":{"rendered":"https:\/\/www.redhillballs.com\/produkty\/rubinove-safirove-kulicky\/rubinove-kulicky\/"},"modified":"2025-10-26T13:49:38","modified_gmt":"2025-10-26T12:49:38","slug":"rubinove-gulicky","status":"publish","type":"page","link":"https:\/\/www.redhillballs.com\/sk\/produkty\/zafirove-a-rubinove-gulicky\/rubinove-gulicky\/","title":{"rendered":"Rub\u00ednov\u00e9 Guli\u010dky"},"content":{"rendered":"<h2>\ud83d\udee0\ufe0f <a href=\"https:\/\/en.wikipedia.org\/wiki\/Corundum\">Rub\u00ednov\u00e9 guli\u010dky \u2013 Vysokov\u00fdkonn\u00e9 presn\u00e9 komponenty<\/a><\/h2>\n<p>Rub\u00ednov\u00e9 guli\u010dky s\u00fa presne vyroben\u00e9 sf\u00e9ry zo syntetick\u00e9ho rub\u00ednu (Al\u2082O\u2083:Cr), kry\u0161talickej formy korundu dopovanej chr\u00f3mom. V\u010faka v\u00fdnimo\u010dnej tvrdosti \u2014 hne\u010f po diamante \u2014 a pozoruhodnej odolnosti vo\u010di opotrebovaniu s\u00fa nevyhnutn\u00e9 v aplik\u00e1ci\u00e1ch vy\u017eaduj\u00facich odolnos\u0165, rozmerov\u00fa stabilitu a odolnos\u0165 vo\u010di extr\u00e9mnym podmienkam. Ich vlastnosti ich predur\u010duj\u00fa na pou\u017eitie v letectve, biomedic\u00ednskej instrument\u00e1cii a technike vysok\u00e9ho v\u00e1kua.<\/p>\n<h3>\ud83d\udd27 K\u013e\u00fa\u010dov\u00e9 technick\u00e9 \u0161pecifik\u00e1cie<\/h3>\n<ul>\n<li><strong>Kristalick\u00e1 \u0161trukt\u00fara<\/strong>: Rombicky hexagon\u00e1lny monokry\u0161t\u00e1l<\/li>\n<li><strong>Zlo\u017eenie<\/strong>: Al\u2082O\u2083:Cr (syntetick\u00fd rub\u00edn)<\/li>\n<li><strong>\u010cistota<\/strong>: 99,99 %<\/li>\n<li><strong>Hustota<\/strong>: ~3,99 g\/cm\u00b3<\/li>\n<li><strong>Mohsova tvrdos\u0165<\/strong>: 9<\/li>\n<li><strong>Knoopova tvrdos\u0165<\/strong>: ~2200 (os C), ~1800 (kolmo na os C)<\/li>\n<li><strong>Youngov modul<\/strong>: ~440 GPa<\/li>\n<li><strong>Bod tavenia<\/strong>: ~2050 \u00b0C<\/li>\n<li><strong>Tepeln\u00e1 vodivos\u0165<\/strong>: ~40 W\/m\u00b7K pri 300 K<\/li>\n<li><strong>Tepeln\u00e1 roz\u0165a\u017enos\u0165<\/strong>: 6,2 \u00d7 10\u207b\u2076 \/\u00b0C (rovnobe\u017ene s osou C), 5,4 \u00d7 10\u207b\u2076 \/\u00b0C (kolmo)<\/li>\n<li><strong>Elektrick\u00e1 rezistivita<\/strong>: &gt;10\u00b9\u00b2 \u03a9\u00b7cm (izolant)<\/li>\n<li><strong>Dielektrick\u00e1 kon\u0161tanta<\/strong>: 10,6 (rovnobe\u017ene s osou C), 8,6 (kolmo)<\/li>\n<\/ul>\n<h3>\u2705 V\u00fdhody<\/h3>\n<ul>\n<li><strong>V\u00fdnimo\u010dn\u00e1 tvrdos\u0165 a odolnos\u0165 vo\u010di opotrebovaniu<\/strong>: Dlh\u00e1 \u017eivotnos\u0165 vo vysoko tren\u00fdch prostrediach.<\/li>\n<li><strong>Vysok\u00e1 tepeln\u00e1 stabilita<\/strong>: Prev\u00e1dzka a\u017e do ~2050 \u00b0C.<\/li>\n<li><strong>Chemick\u00e1 inertnos\u0165 rub\u00ednov\u00fdch guli\u010diek<\/strong>: Odoln\u00e9 vo\u010di v\u00e4\u010d\u0161ine kysel\u00edn a z\u00e1sad.<\/li>\n<li><strong>Rozmerov\u00e1 stabilita<\/strong>: Zachovanie tvaru pri mechanickom a tepelnom nam\u00e1han\u00ed.<\/li>\n<li><strong>Elektrick\u00e1 izol\u00e1cia<\/strong>: Ide\u00e1lne, kde je po\u017eadovan\u00fd nevodiv\u00fd materi\u00e1l.<\/li>\n<li><strong>Optick\u00e1 \u010d\u00edros\u0165<\/strong>: U\u017eito\u010dn\u00e9, kde je k\u013e\u00fa\u010dov\u00e1 transparentnos\u0165.<\/li>\n<\/ul>\n<h3>\ud83d\udd04 Aplik\u00e1cie pre Rub\u00ednov\u00e9 Guli\u010dky<\/h3>\n<p>Rub\u00ednov\u00e9 guli\u010dky sa pou\u017e\u00edvaj\u00fa v r\u00f4znych vysoko presn\u00fdch aplik\u00e1ci\u00e1ch vr\u00e1tane:<\/p>\n<ul>\n<li><strong>Presn\u00e9 lo\u017eisk\u00e1<\/strong>: Mechanick\u00e9 hodinky, gyroskopy a in\u00e9 pr\u00edstroje s n\u00edzkym tren\u00edm.<\/li>\n<li><strong>Optick\u00e9 syst\u00e9my<\/strong>: Konektory optick\u00fdch vl\u00e1kien, laserov\u00e9 syst\u00e9my a optick\u00e9 zarovn\u00e1vacie zariadenia.<\/li>\n<li><strong>Meracie pr\u00edstroje<\/strong>: Prietokomery, \u010d\u00edta\u010dky \u010diarov\u00fdch k\u00f3dov a \u010fal\u0161ie metrologick\u00e9 zariadenia.<\/li>\n<li><strong>Leteck\u00e9 a biomedic\u00ednske zariadenia<\/strong>: Prostredia s vysok\u00fdmi n\u00e1rokmi na spo\u013eahlivos\u0165 a v\u00fdkon.<\/li>\n<\/ul>\n<h3>\ud83d\udce6 Dostupn\u00e9 triedy a ve\u013ekosti<\/h3>\n<p>Rub\u00ednov\u00e9 guli\u010dky s\u00fa dostupn\u00e9 v r\u00f4znych triedach a ve\u013ekostiach pod\u013ea po\u017eiadaviek aplik\u00e1cie:<\/p>\n<ul>\n<li><a href=\"https:\/\/www.redhillballs.com\/company\/precision-grades\/\"><strong>Triedy<\/strong>: G1, G2, G3, G5, G10 a\u017e G25<\/a><\/li>\n<li><strong>Ve\u013ekosti<\/strong>: Priemery od 0,16 mm do 10 mm; z\u00e1kazkov\u00e9 rozmery na po\u017eiadanie.<\/li>\n<\/ul>\n<p>::contentReference[oaicite:0]{index=0}<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\ud83d\udee0\ufe0f Rub\u00ednov\u00e9 guli\u010dky \u2013 Vysokov\u00fdkonn\u00e9 presn\u00e9 komponenty Rub\u00ednov\u00e9 guli\u010dky s\u00fa presne vyroben\u00e9 sf\u00e9ry zo syntetick\u00e9ho rub\u00ednu (Al\u2082O\u2083:Cr), kry\u0161talickej formy korundu dopovanej chr\u00f3mom. V\u010faka v\u00fdnimo\u010dnej tvrdosti \u2014 hne\u010f po diamante \u2014 a pozoruhodnej odolnosti vo\u010di opotrebovaniu s\u00fa nevyhnutn\u00e9 v aplik\u00e1ci\u00e1ch vy\u017eaduj\u00facich odolnos\u0165, rozmerov\u00fa stabilitu a odolnos\u0165 vo\u010di extr\u00e9mnym podmienkam. Ich vlastnosti ich predur\u010duj\u00fa na pou\u017eitie v [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":9235,"parent":1784,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-1785","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>Rub\u00ednov\u00e9 guli\u010dky \u2013 sp\u00e4tn\u00e9 ventily, meracie dotykov\u00e9 hroty<\/title>\n<meta name=\"description\" content=\"Rub\u00ednov\u00e9 guli\u010dky: presn\u00e9 dosadacie prvky v sp\u00e4tn\u00fdch ventiloch a d\u00e1vkovac\u00edch ihl\u00e1ch; pou\u017e\u00edvan\u00e9 aj ako dotykov\u00e9 hroty sn\u00edma\u010dov a merac\u00edch sond\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.redhillballs.com\/sk\/produkty\/zafirove-a-rubinove-gulicky\/rubinove-gulicky\/\" \/>\n<meta property=\"og:locale\" content=\"sk_SK\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Rub\u00ednov\u00e9 Guli\u010dky\" \/>\n<meta property=\"og:description\" content=\"Rub\u00ednov\u00e9 guli\u010dky: presn\u00e9 dosadacie prvky v sp\u00e4tn\u00fdch ventiloch a d\u00e1vkovac\u00edch ihl\u00e1ch; 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