{"id":20416,"date":"2024-12-18T19:58:25","date_gmt":"2024-12-18T22:58:25","guid":{"rendered":"https:\/\/hangarmma.com.br\/blog\/?post_type=glossary&#038;p=20416"},"modified":"2025-03-16T16:57:01","modified_gmt":"2025-03-16T19:57:01","slug":"a-polia","status":"publish","type":"glossary","link":"https:\/\/hangarmma.com.br\/blog\/a-polia\/","title":{"rendered":"Polia"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Polias em Mec&#xE2;nica<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">As polias s&atilde;o elementos simples usados em mec&acirc;nica para multiplicar for&ccedil;as ou alterar dire&ccedil;&otilde;es de aplica&ccedil;&atilde;o de for&ccedil;as. Elas consistem em uma roda girat&oacute;ria montada em um eixo fixo e suportada por uma estrutura chamada de bloco. A roda frequentemente apresenta um sulco para acomodar uma corda ou <a class=\"glossaryLink\"  aria-describedby=\"tt\"  data-cmtooltip=\"cmtt_0ecce43fc2fb413cde5f8560103567d2\"  data-link=\"https:\/\/hangarmma.com.br\/blog\/cabo\/\"  href=\"https:\/\/hangarmma.com.br\/blog\/cabo\/\"  target=\"_blank\"  data-mobile-support=\"0\"  data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex='0' role='link'>cabo<\/a>.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"196\" height=\"280\" src=\"https:\/\/hangarmma.com.br\/blog\/wp-content\/uploads\/2024\/12\/image-18.png\" alt=\"\" class=\"wp-image-25181\"\/><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">Uma polia isolada &#xE9; chamada de roldana. O conjunto de uma ou mais polias em um suporte forma um sistema de polias que pode ser usado para criar <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"cmtt_34a6c37f203bf0ca0d3cbf3c6f4a8622\" data-link=\"https:\/\/hangarmma.com.br\/blog\/vantagem-mecanica\/\" href=\"https:\/\/hangarmma.com.br\/blog\/vantagem-mecanica\/\" target=\"_blank\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">vantagem mec&#xE2;nica<\/a>, permitindo o levantamento de cargas mais pesadas com menor esfor&#xE7;o. O funcionamento das polias se baseia em princ&#xED;pios de transmiss&#xE3;o de for&#xE7;a e &#xE9; amplamente utilizado em sistemas de i&#xE7;amento, transporte e <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"cmtt_33c1f808eb271e5aca46500dda133fcc\" data-link=\"https:\/\/hangarmma.com.br\/blog\/maquinas\/\" href=\"https:\/\/hangarmma.com.br\/blog\/maquinas\/\" target=\"_blank\" data-mobile-support=\"0\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">m&#xE1;quinas<\/a> diversas.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"201\" height=\"395\" src=\"https:\/\/hangarmma.com.br\/blog\/wp-content\/uploads\/2024\/12\/image-19.png\" alt=\"\" class=\"wp-image-25183\" style=\"width:245px;height:auto\" srcset=\"https:\/\/hangarmma.com.br\/blog\/wp-content\/uploads\/2024\/12\/image-19.png 201w, https:\/\/hangarmma.com.br\/blog\/wp-content\/uploads\/2024\/12\/image-19-153x300.png 153w\" sizes=\"auto, (max-width: 201px) 100vw, 201px\"\/><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">O bloco &#xE9; a estrutura que sustenta as polias, permitindo sua rota&#xE7;&#xE3;o e garantindo a distribui&#xE7;&#xE3;o de for&#xE7;a atrav&#xE9;s da corda conectada. Sistemas compostos, como talhas, utilizam m&#xFA;ltiplas polias para maximizar o ganho mec&#xE2;nico.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"247\" height=\"516\" src=\"https:\/\/hangarmma.com.br\/blog\/wp-content\/uploads\/2024\/12\/image-20.png\" alt=\"\" class=\"wp-image-25184\" srcset=\"https:\/\/hangarmma.com.br\/blog\/wp-content\/uploads\/2024\/12\/image-20.png 247w, https:\/\/hangarmma.com.br\/blog\/wp-content\/uploads\/2024\/12\/image-20-144x300.png 144w\" sizes=\"auto, (max-width: 247px) 100vw, 247px\"\/><\/figure>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Polias em Mec\u00e2nica As polias s\u00e3o elementos simples usados em mec\u00e2nica para multiplicar for\u00e7as ou alterar dire\u00e7\u00f5es de aplica\u00e7\u00e3o de for\u00e7as. Elas consistem em uma roda girat\u00f3ria montada em um eixo fixo e suportada por uma estrutura chamada de bloco. A roda frequentemente apresenta um sulco para acomodar uma corda ou cabo. Uma polia isolada [&hellip;]<\/p>\n","protected":false},"author":12,"featured_media":0,"menu_order":0,"template":"","meta":{"_acf_changed":false,"footnotes":""},"glossary-categories":[],"glossary-tags":[],"class_list":["post-20416","glossary","type-glossary","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Polia - HANGAR MMA<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/hangarmma.com.br\/blog\/a-polia\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Polia - HANGAR MMA\" \/>\n<meta property=\"og:description\" content=\"Polias em Mec\u00e2nica As polias s\u00e3o elementos simples usados em mec\u00e2nica para multiplicar for\u00e7as ou alterar dire\u00e7\u00f5es de aplica\u00e7\u00e3o de for\u00e7as. 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