{"id":1601,"date":"2021-01-20T10:32:14","date_gmt":"2021-01-20T09:32:14","guid":{"rendered":"https:\/\/www.redhillballs.com\/?page_id=1601"},"modified":"2025-09-30T16:58:03","modified_gmt":"2025-09-30T14:58:03","slug":"rubinove-kulicky","status":"publish","type":"page","link":"https:\/\/www.redhillballs.com\/cs\/produkty\/rubinove-a-safirove-kulicky\/rubinove-kulicky\/","title":{"rendered":"Rub\u00ednov\u00e9 Kuli\u010dky"},"content":{"rendered":"<h2>\ud83d\udee0\ufe0f <a href=\"https:\/\/en.wikipedia.org\/wiki\/Corundum\">Rub\u00ednov\u00e9 kuli\u010dky \u2013 Vysoce v\u00fdkonn\u00e9 p\u0159esn\u00e9 komponenty<\/a><\/h2>\n<p>Rub\u00ednov\u00e9 kuli\u010dky jsou precizn\u011b vyr\u00e1b\u011bn\u00e9 sf\u00e9ry ze syntetick\u00e9ho rub\u00ednu (Al\u2082O\u2083:Cr), krystalick\u00e9 formy korundu dopovan\u00e9 chromem. D\u00edky v\u00fdjime\u010dn\u00e9 tvrdosti \u2013 druh\u00e9 nejvy\u0161\u0161\u00ed po diamantu \u2013 a pozoruhodn\u00e9 odolnosti proti opot\u0159eben\u00ed jsou nepostradateln\u00e9 v aplikac\u00edch vy\u017eaduj\u00edc\u00edch odolnost, rozm\u011brovou stabilitu a odolnost v\u016f\u010di extr\u00e9mn\u00edm podm\u00ednk\u00e1m. Jejich jedine\u010dn\u00e9 vlastnosti je p\u0159edur\u010duj\u00ed pro pou\u017eit\u00ed v letectv\u00ed, biomedic\u00ednsk\u00fdch p\u0159\u00edstroj\u00edch a ve vakuov\u00e9 technice.<\/p>\n<h3>\ud83d\udd27 Kl\u00ed\u010dov\u00e9 technick\u00e9 specifikace<\/h3>\n<ul>\n<li><strong>Krystalick\u00e1 struktura<\/strong>: Rombicky hexagon\u00e1ln\u00ed monokrystal<\/li>\n<li><strong>Slo\u017een\u00ed<\/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>Tvrdost podle Mohse<\/strong>: 9<\/li>\n<li><strong>Knoopova tvrdost<\/strong>: ~2200 (osa C), ~1800 (kolmo na osu C)<\/li>\n<li><strong>Young\u016fv modul<\/strong>: ~440 GPa<\/li>\n<li><strong>Teplota t\u00e1n\u00ed<\/strong>: ~2050 \u00b0C<\/li>\n<li><strong>Tepeln\u00e1 vodivost<\/strong>: ~40 W\/m\u00b7K p\u0159i 300 K<\/li>\n<li><strong>Tepeln\u00e1 rozta\u017enost<\/strong>: 6,2 \u00d7 10\u207b\u2076 \/\u00b0C (rovnob\u011b\u017en\u011b s osou C), 5,4 \u00d7 10\u207b\u2076 \/\u00b0C (kolmo na osu C)<\/li>\n<li><strong>Elektrick\u00e1 rezistivita<\/strong>: &gt;10\u00b9\u00b2 \u03a9\u00b7cm (izolant)<\/li>\n<li><strong>Dielektrick\u00e1 konstanta<\/strong>: 10,6 (rovnob\u011b\u017en\u011b s osou C), 8,6 (kolmo na osu C)<\/li>\n<\/ul>\n<h3>\u2705 V\u00fdhody<\/h3>\n<ul>\n<li><strong>V\u00fdjime\u010dn\u00e1 tvrdost a odolnost proti opot\u0159eben\u00ed<\/strong>: Zaji\u0161\u0165uje dlouhou \u017eivotnost ve vysoce t\u0159ec\u00edch prost\u0159ed\u00edch.<\/li>\n<li><strong>Vysok\u00e1 tepeln\u00e1 stabilita<\/strong>: Efektivn\u00ed provoz p\u0159i teplot\u00e1ch a\u017e ~2050 \u00b0C.<\/li>\n<li><strong>Chemick\u00e1 inertnost rub\u00ednov\u00fdch koul\u00ed<\/strong>: Odoln\u00e9 v\u016f\u010di v\u011bt\u0161in\u011b kyselin a z\u00e1sad.<\/li>\n<li><strong>Rozm\u011brov\u00e1 stabilita<\/strong>: Udr\u017euj\u00ed tvar p\u0159i mechanick\u00e9m a tepeln\u00e9m nam\u00e1h\u00e1n\u00ed.<\/li>\n<li><strong>Elektrick\u00e1 izolace<\/strong>: Ide\u00e1ln\u00ed tam, kde je vy\u017eadov\u00e1n nevodiv\u00fd materi\u00e1l.<\/li>\n<li><strong>Optick\u00e1 \u010dirost<\/strong>: U\u017eite\u010dn\u00e9 tam, kde je z\u00e1sadn\u00ed transparentnost.<\/li>\n<\/ul>\n<h3>\ud83d\udd04 Aplikace pro Rub\u00ednov\u00e9 Kuli\u010dky<\/h3>\n<p>Rub\u00ednov\u00e9 koule se pou\u017e\u00edvaj\u00ed v cel\u00e9 \u0159ad\u011b vysoce p\u0159esn\u00fdch aplikac\u00ed, v\u010detn\u011b:<\/p>\n<ul>\n<li><strong>P\u0159esn\u00e1 lo\u017eiska<\/strong>: Mechanick\u00e9 hodinky, gyroskopy a dal\u0161\u00ed p\u0159\u00edstroje vy\u017eaduj\u00edc\u00ed n\u00edzk\u00e9 t\u0159en\u00ed a vysokou odolnost.<\/li>\n<li><strong>Optick\u00e9 syst\u00e9my<\/strong>: Konektory optick\u00fdch vl\u00e1ken, laserov\u00e9 syst\u00e9my a optick\u00e9 vyrovn\u00e1vac\u00ed p\u0159\u00edstroje.<\/li>\n<li><strong>M\u011b\u0159ic\u00ed p\u0159\u00edstroje<\/strong>: Pr\u016ftokom\u011bry, \u010dte\u010dky \u010d\u00e1rov\u00fdch k\u00f3d\u016f a dal\u0161\u00ed metrologick\u00e1 za\u0159\u00edzen\u00ed.<\/li>\n<li><strong>Leteck\u00e9 a biomedic\u00ednsk\u00e9 p\u0159\u00edstroje<\/strong>: Prost\u0159ed\u00ed s vysok\u00fdmi n\u00e1roky na spolehlivost a v\u00fdkon.<\/li>\n<\/ul>\n<h3>\ud83d\udce6 Dostupn\u00e9 jakosti a velikosti<\/h3>\n<p>Rub\u00ednov\u00e9 koule jsou k dispozici v r\u016fzn\u00fdch jakostech a velikostech pro specifick\u00e9 po\u017eadavky aplikac\u00ed:<\/p>\n<ul>\n<li><a href=\"https:\/\/www.redhillballs.com\/company\/precision-grades\/\"><strong>Jakosti<\/strong>: G1, G2, G3, G5, G10 a\u017e G25<\/a><\/li>\n<li><strong>Velikosti<\/strong>: Pr\u016fm\u011bry od 0,16 mm do 10 mm; zak\u00e1zkov\u00e9 rozm\u011bry na vy\u017e\u00e1d\u00e1n\u00ed.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\ud83d\udee0\ufe0f Rub\u00ednov\u00e9 kuli\u010dky \u2013 Vysoce v\u00fdkonn\u00e9 p\u0159esn\u00e9 komponenty Rub\u00ednov\u00e9 kuli\u010dky jsou precizn\u011b vyr\u00e1b\u011bn\u00e9 sf\u00e9ry ze syntetick\u00e9ho rub\u00ednu (Al\u2082O\u2083:Cr), krystalick\u00e9 formy korundu dopovan\u00e9 chromem. D\u00edky v\u00fdjime\u010dn\u00e9 tvrdosti \u2013 druh\u00e9 nejvy\u0161\u0161\u00ed po diamantu \u2013 a pozoruhodn\u00e9 odolnosti proti opot\u0159eben\u00ed jsou nepostradateln\u00e9 v aplikac\u00edch vy\u017eaduj\u00edc\u00edch odolnost, rozm\u011brovou stabilitu a odolnost v\u016f\u010di extr\u00e9mn\u00edm podm\u00ednk\u00e1m. Jejich jedine\u010dn\u00e9 vlastnosti je p\u0159edur\u010duj\u00ed [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":9227,"parent":1599,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-1601","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 kuli\u010dky \u2013 extr\u00e9mn\u00ed tvrdost a p\u0159esnost<\/title>\n<meta name=\"description\" content=\"Rub\u00ednov\u00e9 kuli\u010dky vynikaj\u00ed extr\u00e9mn\u00ed tvrdost\u00ed, odolnost\u00ed proti opot\u0159eben\u00ed a vysokou p\u0159esnost\u00ed, ide\u00e1ln\u00ed pro optick\u00e9 a technick\u00e9 aplikace\" \/>\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\/cs\/produkty\/rubinove-a-safirove-kulicky\/rubinove-kulicky\/\" \/>\n<meta property=\"og:locale\" content=\"cs_CZ\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Rub\u00ednov\u00e9 Kuli\u010dky\" \/>\n<meta property=\"og:description\" content=\"Rub\u00ednov\u00e9 kuli\u010dky vynikaj\u00ed extr\u00e9mn\u00ed tvrdost\u00ed, odolnost\u00ed proti opot\u0159eben\u00ed a vysokou p\u0159esnost\u00ed, ide\u00e1ln\u00ed pro optick\u00e9 a technick\u00e9 aplikace\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.redhillballs.com\/cs\/produkty\/rubinove-a-safirove-kulicky\/rubinove-kulicky\/\" \/>\n<meta property=\"og:site_name\" content=\"Redhill Precision Specialty Balls\" \/>\n<meta property=\"article:modified_time\" content=\"2025-09-30T14:58:03+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.redhillballs.com\/wp-content\/uploads\/2025\/09\/red-ruby-balls.png\" \/>\n\t<meta property=\"og:image:width\" content=\"750\" \/>\n\t<meta property=\"og:image:height\" content=\"500\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Odhadovan\u00e1 doba \u010dten\u00ed\" \/>\n\t<meta name=\"twitter:data1\" content=\"2 minuty\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.redhillballs.com\\\/cs\\\/produkty\\\/rubinove-a-safirove-kulicky\\\/rubinove-kulicky\\\/\",\"url\":\"https:\\\/\\\/www.redhillballs.com\\\/cs\\\/produkty\\\/rubinove-a-safirove-kulicky\\\/rubinove-kulicky\\\/\",\"name\":\"Rub\u00ednov\u00e9 kuli\u010dky \u2013 extr\u00e9mn\u00ed tvrdost a p\u0159esnost\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.redhillballs.com\\\/cs\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.redhillballs.com\\\/cs\\\/produkty\\\/rubinove-a-safirove-kulicky\\\/rubinove-kulicky\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.redhillballs.com\\\/cs\\\/produkty\\\/rubinove-a-safirove-kulicky\\\/rubinove-kulicky\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.redhillballs.com\\\/wp-content\\\/uploads\\\/2025\\\/09\\\/red-ruby-balls.png\",\"datePublished\":\"2021-01-20T09:32:14+00:00\",\"dateModified\":\"2025-09-30T14:58:03+00:00\",\"description\":\"Rub\u00ednov\u00e9 kuli\u010dky vynikaj\u00ed extr\u00e9mn\u00ed tvrdost\u00ed, odolnost\u00ed proti opot\u0159eben\u00ed a vysokou p\u0159esnost\u00ed, ide\u00e1ln\u00ed pro optick\u00e9 a technick\u00e9 aplikace\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.redhillballs.com\\\/cs\\\/produkty\\\/rubinove-a-safirove-kulicky\\\/rubinove-kulicky\\\/#breadcrumb\"},\"inLanguage\":\"cs\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.redhillballs.com\\\/cs\\\/produkty\\\/rubinove-a-safirove-kulicky\\\/rubinove-kulicky\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"cs\",\"@id\":\"https:\\\/\\\/www.redhillballs.com\\\/cs\\\/produkty\\\/rubinove-a-safirove-kulicky\\\/rubinove-kulicky\\\/#primaryimage\",\"url\":\"https:\\\/\\\/www.redhillballs.com\\\/wp-content\\\/uploads\\\/2025\\\/09\\\/red-ruby-balls.png\",\"contentUrl\":\"https:\\\/\\\/www.redhillballs.com\\\/wp-content\\\/uploads\\\/2025\\\/09\\\/red-ruby-balls.png\",\"width\":750,\"height\":500,\"caption\":\"Rub\u00ednov\u00e9 Kuli\u010dky\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.redhillballs.com\\\/cs\\\/produkty\\\/rubinove-a-safirove-kulicky\\\/rubinove-kulicky\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Dom\u016f\",\"item\":\"https:\\\/\\\/www.redhillballs.com\\\/cs\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Produkty\",\"item\":\"https:\\\/\\\/www.redhillballs.com\\\/cs\\\/produkty\\\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Rub\u00ednov\u00e9 a Saf\u00edrov\u00e9 Kuli\u010dky\",\"item\":\"https:\\\/\\\/www.redhillballs.com\\\/cs\\\/produkty\\\/rubinove-a-safirove-kulicky\\\/\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Rub\u00ednov\u00e9 Kuli\u010dky\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.redhillballs.com\\\/cs\\\/#website\",\"url\":\"https:\\\/\\\/www.redhillballs.com\\\/cs\\\/\",\"name\":\"Redhill Precision Specialty Balls\",\"description\":\"\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.redhillballs.com\\\/cs\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"cs\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Rub\u00ednov\u00e9 kuli\u010dky \u2013 extr\u00e9mn\u00ed tvrdost a p\u0159esnost","description":"Rub\u00ednov\u00e9 kuli\u010dky vynikaj\u00ed extr\u00e9mn\u00ed tvrdost\u00ed, odolnost\u00ed proti opot\u0159eben\u00ed a vysokou p\u0159esnost\u00ed, ide\u00e1ln\u00ed pro optick\u00e9 a technick\u00e9 aplikace","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.redhillballs.com\/cs\/produkty\/rubinove-a-safirove-kulicky\/rubinove-kulicky\/","og_locale":"cs_CZ","og_type":"article","og_title":"Rub\u00ednov\u00e9 Kuli\u010dky","og_description":"Rub\u00ednov\u00e9 kuli\u010dky vynikaj\u00ed extr\u00e9mn\u00ed tvrdost\u00ed, odolnost\u00ed proti opot\u0159eben\u00ed a vysokou p\u0159esnost\u00ed, ide\u00e1ln\u00ed pro optick\u00e9 a technick\u00e9 aplikace","og_url":"https:\/\/www.redhillballs.com\/cs\/produkty\/rubinove-a-safirove-kulicky\/rubinove-kulicky\/","og_site_name":"Redhill Precision Specialty Balls","article_modified_time":"2025-09-30T14:58:03+00:00","og_image":[{"width":750,"height":500,"url":"https:\/\/www.redhillballs.com\/wp-content\/uploads\/2025\/09\/red-ruby-balls.png","type":"image\/png"}],"twitter_card":"summary_large_image","twitter_misc":{"Odhadovan\u00e1 doba \u010dten\u00ed":"2 minuty"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.redhillballs.com\/cs\/produkty\/rubinove-a-safirove-kulicky\/rubinove-kulicky\/","url":"https:\/\/www.redhillballs.com\/cs\/produkty\/rubinove-a-safirove-kulicky\/rubinove-kulicky\/","name":"Rub\u00ednov\u00e9 kuli\u010dky \u2013 extr\u00e9mn\u00ed tvrdost a p\u0159esnost","isPartOf":{"@id":"https:\/\/www.redhillballs.com\/cs\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.redhillballs.com\/cs\/produkty\/rubinove-a-safirove-kulicky\/rubinove-kulicky\/#primaryimage"},"image":{"@id":"https:\/\/www.redhillballs.com\/cs\/produkty\/rubinove-a-safirove-kulicky\/rubinove-kulicky\/#primaryimage"},"thumbnailUrl":"https:\/\/www.redhillballs.com\/wp-content\/uploads\/2025\/09\/red-ruby-balls.png","datePublished":"2021-01-20T09:32:14+00:00","dateModified":"2025-09-30T14:58:03+00:00","description":"Rub\u00ednov\u00e9 kuli\u010dky vynikaj\u00ed extr\u00e9mn\u00ed tvrdost\u00ed, odolnost\u00ed proti opot\u0159eben\u00ed a vysokou p\u0159esnost\u00ed, ide\u00e1ln\u00ed pro optick\u00e9 a technick\u00e9 aplikace","breadcrumb":{"@id":"https:\/\/www.redhillballs.com\/cs\/produkty\/rubinove-a-safirove-kulicky\/rubinove-kulicky\/#breadcrumb"},"inLanguage":"cs","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.redhillballs.com\/cs\/produkty\/rubinove-a-safirove-kulicky\/rubinove-kulicky\/"]}]},{"@type":"ImageObject","inLanguage":"cs","@id":"https:\/\/www.redhillballs.com\/cs\/produkty\/rubinove-a-safirove-kulicky\/rubinove-kulicky\/#primaryimage","url":"https:\/\/www.redhillballs.com\/wp-content\/uploads\/2025\/09\/red-ruby-balls.png","contentUrl":"https:\/\/www.redhillballs.com\/wp-content\/uploads\/2025\/09\/red-ruby-balls.png","width":750,"height":500,"caption":"Rub\u00ednov\u00e9 Kuli\u010dky"},{"@type":"BreadcrumbList","@id":"https:\/\/www.redhillballs.com\/cs\/produkty\/rubinove-a-safirove-kulicky\/rubinove-kulicky\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Dom\u016f","item":"https:\/\/www.redhillballs.com\/cs\/"},{"@type":"ListItem","position":2,"name":"Produkty","item":"https:\/\/www.redhillballs.com\/cs\/produkty\/"},{"@type":"ListItem","position":3,"name":"Rub\u00ednov\u00e9 a Saf\u00edrov\u00e9 Kuli\u010dky","item":"https:\/\/www.redhillballs.com\/cs\/produkty\/rubinove-a-safirove-kulicky\/"},{"@type":"ListItem","position":4,"name":"Rub\u00ednov\u00e9 Kuli\u010dky"}]},{"@type":"WebSite","@id":"https:\/\/www.redhillballs.com\/cs\/#website","url":"https:\/\/www.redhillballs.com\/cs\/","name":"Redhill Precision Specialty Balls","description":"","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.redhillballs.com\/cs\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"cs"}]}},"_links":{"self":[{"href":"https:\/\/www.redhillballs.com\/cs\/wp-json\/wp\/v2\/pages\/1601","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.redhillballs.com\/cs\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.redhillballs.com\/cs\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.redhillballs.com\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.redhillballs.com\/cs\/wp-json\/wp\/v2\/comments?post=1601"}],"version-history":[{"count":10,"href":"https:\/\/www.redhillballs.com\/cs\/wp-json\/wp\/v2\/pages\/1601\/revisions"}],"predecessor-version":[{"id":9448,"href":"https:\/\/www.redhillballs.com\/cs\/wp-json\/wp\/v2\/pages\/1601\/revisions\/9448"}],"up":[{"embeddable":true,"href":"https:\/\/www.redhillballs.com\/cs\/wp-json\/wp\/v2\/pages\/1599"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.redhillballs.com\/cs\/wp-json\/wp\/v2\/media\/9227"}],"wp:attachment":[{"href":"https:\/\/www.redhillballs.com\/cs\/wp-json\/wp\/v2\/media?parent=1601"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}