{"id":3011,"date":"2021-01-21T09:20:02","date_gmt":"2021-01-21T08:20:02","guid":{"rendered":"https:\/\/www.redhillballs.com\/?page_id=3011"},"modified":"2025-09-29T10:43:35","modified_gmt":"2025-09-29T08:43:35","slug":"esferas-de-polietileno","status":"publish","type":"page","link":"https:\/\/www.redhillballs.com\/pt-pt\/produtos\/esferas-de-plastico\/esferas-de-polietileno\/","title":{"rendered":"Esferas de polietileno"},"content":{"rendered":"<h2>\ud83d\udee0\ufe0f <a href=\"https:\/\/en.wikipedia.org\/wiki\/Polyethylene\">Esferas de polietileno (PE) \u2013 componentes leves de baixo atrito<\/a><\/h2>\n<p>As esferas de polietileno oferecem massa ultrabaixa, baixo atrito e opera\u00e7\u00e3o silenciosa e livre de corros\u00e3o. Nas qualidades HDPE e UHMW-PE, combinam excelente resist\u00eancia qu\u00edmica com alta tenacidade ao impacto\u2014ideais onde metais corroem ou o peso \u00e9 cr\u00edtico, como em instrumenta\u00e7\u00e3o, v\u00e1lvulas, flutuadores e mancais de baixa carga.<\/p>\n<h3>\ud83d\udd27 Principais especifica\u00e7\u00f5es t\u00e9cnicas<\/h3>\n<ul>\n<li><strong>Composi\u00e7\u00e3o<\/strong>: HDPE \/ UHMW-PE<\/li>\n<li><strong>Estrutura<\/strong>: Termopl\u00e1stico semicristalino<\/li>\n<li><strong>Dureza<\/strong>: Shore D ~60\u201370<\/li>\n<li><strong>Densidade<\/strong>: ~0,93\u20130,96 g\/cm\u00b3<\/li>\n<li><strong>Temperatura de servi\u00e7o<\/strong>: \u221280 a +80 \u00b0C (curto prazo +90 \u00b0C)<\/li>\n<li><strong>El\u00e9trico<\/strong>: Excelente isolante; n\u00e3o magn\u00e9ticas<\/li>\n<\/ul>\n<h3>\u2705 Vantagens<\/h3>\n<ul>\n<li><strong>Ultraleves<\/strong>: Menor densidade entre pl\u00e1sticos de engenharia comuns<\/li>\n<li><strong>Baixo atrito &amp; sil\u00eancio<\/strong>: Movimento suave e de baixo ru\u00eddo<\/li>\n<li><strong>Resist\u00eancia qu\u00edmica &amp; \u00e0 umidade<\/strong>: Sem corros\u00e3o ou inchamento<\/li>\n<li><strong>Tenacidade ao impacto<\/strong>: Especialmente com UHMW-PE<\/li>\n<\/ul>\n<h3>\ud83d\udd04 Aplica\u00e7\u00f5es das esferas de polietileno<\/h3>\n<ul>\n<li><strong>Mancais &amp; roletes de baixa carga<\/strong><\/li>\n<li><strong>V\u00e1lvulas de reten\u00e7\u00e3o, assentos &amp; flutuadores<\/strong><\/li>\n<li><strong>Medidores de vaz\u00e3o &amp; bombas<\/strong><\/li>\n<li><strong>Equipamentos para alimentos &amp; uso marinho<\/strong><\/li>\n<\/ul>\n<h3>\ud83d\udce6 Classes &amp; tamanhos dispon\u00edveis<\/h3>\n<ul>\n<li><a href=\"https:\/\/www.redhillballs.com\/company\/precision-grades\/\"><strong>Classes<\/strong>: ISO 3290 GI \u2013 GIII<\/a><\/li>\n<li><strong>Faixa de di\u00e2metros<\/strong>: 1\/16&#8243; \u2013 4&#8243;<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\ud83d\udee0\ufe0f Esferas de polietileno (PE) \u2013 componentes leves de baixo atrito As esferas de polietileno oferecem massa ultrabaixa, baixo atrito e opera\u00e7\u00e3o silenciosa e livre de corros\u00e3o. Nas qualidades HDPE e UHMW-PE, combinam excelente resist\u00eancia qu\u00edmica com alta tenacidade ao impacto\u2014ideais onde metais corroem ou o peso \u00e9 cr\u00edtico, como em instrumenta\u00e7\u00e3o, v\u00e1lvulas, flutuadores e [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":9100,"parent":3007,"menu_order":2,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-3011","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>Esferas de polietileno (PE) \u2013 componentes leves de baixo atrito<\/title>\n<meta name=\"description\" content=\"Esferas de polietileno s\u00e3o leves, resistentes a produtos qu\u00edmicos e vers\u00e1teis, ideais para aplica\u00e7\u00f5es m\u00e9dicas, qu\u00edmicas e industriais\" \/>\n<meta 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