{"id":9913,"date":"2025-04-23T02:04:55","date_gmt":"2025-04-23T02:04:55","guid":{"rendered":"https:\/\/www.skf-eu.com\/?post_type=product&#038;p=9913"},"modified":"2025-04-24T08:19:36","modified_gmt":"2025-04-24T08:19:36","slug":"single-direction-thrust-ball-bearing","status":"publish","type":"product","link":"https:\/\/www.skf-eu.com\/pt\/produto\/single-direction-thrust-ball-bearing\/","title":{"rendered":"Rolamento axial de esferas de dire\u00e7\u00e3o \u00fanica"},"content":{"rendered":"<h2><strong>Rolamento axial de esferas de dire\u00e7\u00e3o \u00fanica Introdu\u00e7\u00e3o detalhada<\/strong><\/h2>\n<p><a href=\"https:\/\/www.skf-eu.com\/product\/single-direction-thrust-ball-bearing\/\"><strong>Rolamento axial de esferas de dire\u00e7\u00e3o \u00fanica<\/strong><\/a> \u00e9 um <a href=\"https:\/\/www.skf-eu.com\/category\/ball-bearings\/thrust-ball-bearings\/\"><strong>Rolamento axial de esferas<\/strong><\/a> especialmente concebido para suportar cargas axiais unidireccionais e \u00e9 amplamente utilizado em ocasi\u00f5es que requerem alta velocidade e baixa fric\u00e7\u00e3o. A sua estrutura \u00e9 simples, composta principalmente por um anel interior (em contacto com o eixo), um anel exterior (em contacto com o assento do rolamento), uma esfera de a\u00e7o e uma gaiola.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-9918 aligncenter\" data-src=\"https:\/\/www.skf-eu.com\/wp-content\/uploads\/2025\/04\/Single-row-thrust-ball-bearings-1.webp\" alt=\"Single-Direction Thrust Ball Bearing\" width=\"1500\" height=\"1267\" srcset=\"https:\/\/www.skf-eu.com\/wp-content\/uploads\/2025\/04\/Single-row-thrust-ball-bearings-1.webp 1500w, https:\/\/www.skf-eu.com\/wp-content\/uploads\/2025\/04\/Single-row-thrust-ball-bearings-1-1280x1081.webp 1280w, https:\/\/www.skf-eu.com\/wp-content\/uploads\/2025\/04\/Single-row-thrust-ball-bearings-1-980x828.webp 980w, https:\/\/www.skf-eu.com\/wp-content\/uploads\/2025\/04\/Single-row-thrust-ball-bearings-1-480x405.webp 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) and (max-width: 1280px) 1280px, (min-width: 1281px) 1500px, 100vw\" \/><\/p>\n<h3><strong>1. Estrutura e carater\u00edsticas do rolamento axial de esferas de dire\u00e7\u00e3o \u00fanica<\/strong><\/h3>\n<p>Suporte de carga unidirecional: s\u00f3 pode suportar carga axial unidirecional, n\u00e3o pode suportar carga radial.<\/p>\n<p>Adaptar-se a alta velocidade: adotar o design de fric\u00e7\u00e3o de rolamento, adequado para funcionamento a alta velocidade, o desempenho \u00e9 melhor do que os rolamentos deslizantes.<\/p>\n<p>Baixo atrito de arranque: tem um atrito de arranque reduzido, muito adequado para aplica\u00e7\u00f5es frequentes de arranque-paragem.<\/p>\n<p>Design padronizado: tem boa versatilidade, f\u00e1cil de instalar e substituir.<\/p>\n<p><strong>Limita\u00e7\u00f5es:<\/strong><\/p>\n<p>N\u00e3o suporta carga radial.<\/p>\n<p>Elevados requisitos de precis\u00e3o de instala\u00e7\u00e3o, como o desvio de instala\u00e7\u00e3o, causar\u00e3o concentra\u00e7\u00e3o de tens\u00f5es, afectando a vida \u00fatil da chumaceira.<\/p>\n<h3><strong>2. Modelos comuns e tabela de par\u00e2metros<\/strong><\/h3>\n<p>Seguem-se os par\u00e2metros de alguns modelos comuns:<\/p>\n<table class=\"tg\" style=\"border-collapse: collapse; border-spacing: 0;\">\n<thead>\n<tr>\n<th style=\"font-family: Arial, sans-serif; font-size: 14px; font-weight: normal; overflow: hidden; padding: 10px 5px; text-align: left; vertical-align: top; word-break: normal; border: 1px solid black;\">Modelo<\/th>\n<th style=\"font-family: Arial, sans-serif; font-size: 14px; font-weight: normal; overflow: hidden; padding: 10px 5px; text-align: left; vertical-align: top; word-break: normal; border: 1px solid black;\">Di\u00e2metro interior (mm)<\/th>\n<th style=\"font-family: Arial, sans-serif; font-size: 14px; font-weight: normal; overflow: hidden; padding: 10px 5px; text-align: left; vertical-align: top; word-break: normal; border: 1px solid black;\">Di\u00e2metro exterior (mm)<\/th>\n<th style=\"font-family: Arial, sans-serif; font-size: 14px; font-weight: normal; overflow: hidden; padding: 10px 5px; text-align: left; vertical-align: top; word-break: normal; border: 1px solid black;\">Altura (mm)<\/th>\n<th style=\"font-family: Arial, sans-serif; font-size: 14px; font-weight: normal; overflow: hidden; padding: 10px 5px; text-align: left; vertical-align: top; word-break: normal; border: 1px solid black;\">Carga din\u00e2mica (kN)<\/th>\n<th style=\"font-family: Arial, sans-serif; font-size: 14px; font-weight: normal; overflow: hidden; padding: 10px 5px; text-align: left; vertical-align: top; word-break: normal; border: 1px solid black;\">Carga est\u00e1tica (kN)<\/th>\n<th style=\"font-family: Arial, sans-serif; font-size: 14px; font-weight: normal; overflow: hidden; padding: 10px 5px; text-align: left; vertical-align: top; word-break: normal; border: 1px solid black;\">Velocidade limite (rpm)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: left; vertical-align: top; word-break: normal; border: 1px solid black;\">51100<\/td>\n<td style=\"font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: left; vertical-align: top; word-break: normal; border: 1px solid black;\">10<\/td>\n<td style=\"font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: left; vertical-align: top; word-break: normal; border: 1px solid black;\">24<\/td>\n<td style=\"font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: left; vertical-align: top; word-break: normal; border: 1px solid black;\">9<\/td>\n<td style=\"font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: left; vertical-align: top; word-break: normal; border: 1px solid black;\">5.6<\/td>\n<td style=\"font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: left; vertical-align: top; word-break: normal; border: 1px solid black;\">10.2<\/td>\n<td style=\"font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: left; vertical-align: top; word-break: normal; border: 1px solid black;\">6000<\/td>\n<\/tr>\n<tr>\n<td style=\"font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: left; vertical-align: top; word-break: normal; border: 1px solid black;\">51105<\/td>\n<td style=\"font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: left; vertical-align: top; word-break: normal; border: 1px solid black;\">25<\/td>\n<td style=\"font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: left; vertical-align: top; word-break: normal; border: 1px solid black;\">42<\/td>\n<td style=\"font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: left; vertical-align: top; word-break: normal; border: 1px solid black;\">11<\/td>\n<td style=\"font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: left; vertical-align: top; word-break: normal; border: 1px solid black;\">15.2<\/td>\n<td style=\"font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: left; vertical-align: top; word-break: normal; border: 1px solid black;\">28.5<\/td>\n<td style=\"font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: left; vertical-align: top; word-break: normal; border: 1px solid black;\">4500<\/td>\n<\/tr>\n<tr>\n<td style=\"font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: left; vertical-align: top; word-break: normal; border: 1px solid black;\">51110<\/td>\n<td style=\"font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: left; vertical-align: top; word-break: normal; border: 1px solid black;\">50<\/td>\n<td style=\"font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: left; vertical-align: top; word-break: normal; border: 1px solid black;\">70<\/td>\n<td style=\"font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: left; vertical-align: top; word-break: normal; border: 1px solid black;\">14<\/td>\n<td style=\"font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: left; vertical-align: top; word-break: normal; border: 1px solid black;\">32.0<\/td>\n<td style=\"font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: left; vertical-align: top; word-break: normal; border: 1px solid black;\">60.0<\/td>\n<td style=\"font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: left; vertical-align: top; word-break: normal; border: 1px solid black;\">3800<\/td>\n<\/tr>\n<tr>\n<td style=\"font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: left; vertical-align: top; word-break: normal; border: 1px solid black;\">51120<\/td>\n<td style=\"font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: left; vertical-align: top; word-break: normal; border: 1px solid black;\">100<\/td>\n<td style=\"font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: left; vertical-align: top; word-break: normal; border: 1px solid black;\">135<\/td>\n<td style=\"font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: left; vertical-align: top; word-break: normal; border: 1px solid black;\">25<\/td>\n<td style=\"font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: left; vertical-align: top; word-break: normal; border: 1px solid black;\">78.0<\/td>\n<td style=\"font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: left; vertical-align: top; word-break: normal; border: 1px solid black;\">150.0<\/td>\n<td style=\"font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: left; vertical-align: top; word-break: normal; border: 1px solid black;\">2400<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>Nota:<\/strong><\/p>\n<p>Carga din\u00e2mica (C): refere-se \u00e0 carga m\u00e1xima que a chumaceira pode suportar quando est\u00e1 a rodar.<\/p>\n<p>Carga est\u00e1tica (C\u2080): refere-se \u00e0 carga m\u00e1xima que o rolamento pode suportar quando est\u00e1 parado.<\/p>\n<p>Velocidade limite: A velocidade m\u00e1xima em condi\u00e7\u00f5es de lubrifica\u00e7\u00e3o com massa, que pode ser aumentada em 20%~30% em condi\u00e7\u00f5es de lubrifica\u00e7\u00e3o com \u00f3leo.<\/p>\n<h3><strong>Marcas comuns:<\/strong><\/h3>\n<p>Rolamento axial de esferas de uma carreira da SKF<br \/>\nRolamento axial de esferas de uma carreira da FAG<br \/>\nRolamento axial de esferas de uma fila NSK<br \/>\nRolamento axial de esferas de uma carreira da NTN<br \/>\nRolamento axial de esferas de uma carreira da TIMKEN<br \/>\nRolamento axial de esferas de uma fila KOYO<br \/>\nRolamento axial de esferas INA de uma fila<\/p>\n<h3><strong>3. Aplica\u00e7\u00f5es t\u00edpicas<\/strong><\/h3>\n<p>Os rolamentos axiais de esferas de uma fila s\u00e3o adequados para ocasi\u00f5es que suportam especificamente cargas axiais. As aplica\u00e7\u00f5es mais comuns s\u00e3o as seguintes:<\/p>\n<p>Ind\u00fastria autom\u00f3vel: rolamentos de desbloqueio da embraiagem e suportes axiais em caixas de velocidades.<\/p>\n<p>Equipamento de m\u00e1quinas-ferramentas: como o posicionamento axial de fusos de tornos verticais e m\u00e1quinas de perfura\u00e7\u00e3o.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-9919 aligncenter\" data-src=\"https:\/\/www.skf-eu.com\/wp-content\/uploads\/2025\/04\/Single-row-thrust-ball-bearings-for-Vertical-drilling-machine-spindle.webp\" alt=\"Single row thrust ball bearings for Vertical drilling machine spindle\" width=\"512\" height=\"384\" srcset=\"https:\/\/www.skf-eu.com\/wp-content\/uploads\/2025\/04\/Single-row-thrust-ball-bearings-for-Vertical-drilling-machine-spindle.webp 512w, https:\/\/www.skf-eu.com\/wp-content\/uploads\/2025\/04\/Single-row-thrust-ball-bearings-for-Vertical-drilling-machine-spindle-480x360.webp 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) 512px, 100vw\" \/><\/p>\n<p>Equipamento de bombagem: tais como suportes axiais em bombas centr\u00edfugas e bombas submers\u00edveis.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-9920 aligncenter\" data-src=\"https:\/\/www.skf-eu.com\/wp-content\/uploads\/2025\/04\/Single-row-thrust-ball-bearings-for-Axial-force-balance-of-centrifugal-pumps.webp\" alt=\"Single row thrust ball bearings for Axial force balance of centrifugal pumps\" width=\"600\" height=\"468\" srcset=\"https:\/\/www.skf-eu.com\/wp-content\/uploads\/2025\/04\/Single-row-thrust-ball-bearings-for-Axial-force-balance-of-centrifugal-pumps.webp 600w, https:\/\/www.skf-eu.com\/wp-content\/uploads\/2025\/04\/Single-row-thrust-ball-bearings-for-Axial-force-balance-of-centrifugal-pumps-480x374.webp 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) 600px, 100vw\" \/><\/p>\n<p>Electrodom\u00e9sticos: como a fixa\u00e7\u00e3o axial de barris de desidrata\u00e7\u00e3o de m\u00e1quinas de lavar roupa e motores de ventiladores.<\/p>\n<h3><strong>4. Perguntas frequentes (FAQ)<\/strong><\/h3>\n<p>Q1: Os rolamentos axiais de esferas de uma fila podem suportar for\u00e7as radiais?<\/p>\n<p>R: N\u00e3o, s\u00f3 \u00e9 adequado para cargas axiais numa dire\u00e7\u00e3o. Se precisar de suportar cargas radiais ao mesmo tempo, deve escolher outros tipos de rolamentos, como os rolamentos de esferas de contacto angular ou os rolamentos de rolos c\u00f3nicos.<\/p>\n<p>Q2: A que \u00e9 que se deve prestar aten\u00e7\u00e3o durante a instala\u00e7\u00e3o?<\/p>\n<p>A:<\/p>\n<p>Certifique-se de que o anel interior est\u00e1 pr\u00f3ximo do ressalto do veio e o anel exterior est\u00e1 pr\u00f3ximo do assento da chumaceira.<\/p>\n<p>A verticalidade do veio e do assento da chumaceira deve ser garantida. A deflex\u00e3o provoca danos prematuros na chumaceira.<\/p>\n<p>Selecionar o m\u00e9todo de lubrifica\u00e7\u00e3o (lubrifica\u00e7\u00e3o com massa ou lubrifica\u00e7\u00e3o com \u00f3leo) de acordo com a velocidade.<\/p>\n<p>Q3: Como avaliar se a chumaceira est\u00e1 danificada?<\/p>\n<p>A:<\/p>\n<p>Quando se ouve um ru\u00eddo anormal (som de fric\u00e7\u00e3o do metal), pode tratar-se de lubrifica\u00e7\u00e3o insuficiente ou de danos na esfera de a\u00e7o.<\/p>\n<p>Se a folga axial for demasiado grande, ir\u00e1 mostrar um tremor \u00f3bvio, indicando que a chumaceira est\u00e1 muito gasta e precisa de ser substitu\u00edda.<\/p>\n<p>O sobreaquecimento do rolamento (acima de 80 \u2103) pode ser devido a lubrifica\u00e7\u00e3o insuficiente ou carga excessiva.<\/p>\n<p>Q4: Como escolher rolamentos axiais de esferas de uma fila e de duas filas?<\/p>\n<p>A:<\/p>\n<p>As chumaceiras de uma fila s\u00e3o adequadas para cargas axiais unidireccionais (como os veios das bombas).<\/p>\n<p>Os rolamentos axiais de esferas de duas carreiras (como os da s\u00e9rie 52200) s\u00e3o adequados para cargas axiais bidireccionais (como os suportes girat\u00f3rios de gruas).<\/p>\n<p>P5: Os rolamentos axiais de esferas de uma fila podem ser utilizados em temperaturas elevadas ou em ambientes corrosivos?<\/p>\n<p>A:<\/p>\n<p>Os modelos standard (como o 51100) s\u00e3o adequados para ambientes com temperaturas normais.<\/p>\n<p>Para ambientes de alta temperatura, pode ser selecionado a\u00e7o de alta temperatura (como o SKF 51105 C4).<\/p>\n<p>Em ambientes corrosivos, devem ser selecionados rolamentos de a\u00e7o inoxid\u00e1vel (como 51103 SS).<\/p>\n<h3><strong>5. Recomenda\u00e7\u00f5es de manuten\u00e7\u00e3o e substitui\u00e7\u00e3o<\/strong><\/h3>\n<p>Lubrifica\u00e7\u00e3o: Encher regularmente os rolamentos com massa lubrificante \u00e0 base de l\u00edtio de alta temperatura (como a SKF LGMT 2).<\/p>\n<p>Ciclo de inspe\u00e7\u00e3o: Verificar a folga axial e o ru\u00eddo de 3 em 3 ou de 6 em 6 meses.<\/p>\n<p>Norma de substitui\u00e7\u00e3o: Se a folga axial for superior a 0,3 mm, ou se ocorrer descama\u00e7\u00e3o, encravamento, etc., o rolamento tem de ser substitu\u00eddo a tempo.<\/p>\n<h2><strong>Resumo<\/strong><\/h2>\n<p>Os rolamentos axiais de esferas de uma fila t\u00eam um bom desempenho quando sujeitos a cargas axiais puras e s\u00e3o particularmente adequados para aplica\u00e7\u00f5es de alta velocidade e de baixa fric\u00e7\u00e3o. Uma instala\u00e7\u00e3o correta e uma manuten\u00e7\u00e3o regular podem prolongar eficazmente a vida \u00fatil do rolamento. Quando \u00e9 necess\u00e1rio suportar cargas bidireccionais ou cargas complexas, recomendam-se os rolamentos axiais de duas carreiras ou os rolamentos de esferas de contacto angular.<\/p>","protected":false},"excerpt":{"rendered":"<p><strong>Principais vantagens<\/strong><br \/>\nCarga axial elevada - Concebida para cargas axiais puras, com uma forte capacidade de carga.<br \/>\nBaixo atrito e alta velocidade - Design de atrito de rolamento, adequado para velocidades mais altas (melhor do que rolamentos deslizantes).<br \/>\n\u2714 Compacto e leve - Estrutura simples, pequeno espa\u00e7o de instala\u00e7\u00e3o, adequado para design leve.<br \/>\nPadronizado e universal - Modelos unificados (como a s\u00e9rie 51100), f\u00e1ceis de adquirir e substituir.<\/p>\n<p><strong>Aplica\u00e7\u00f5es t\u00edpicas<\/strong><br \/>\nAutom\u00f3vel: Rolamento de desbloqueio da embraiagem, suporte axial da caixa de velocidades.<\/p>\n<p>M\u00e1quinas-ferramentas: Eixo da m\u00e1quina de perfura\u00e7\u00e3o vertical, posicionamento axial do torno.<\/p>\n<p>Bombas: Equil\u00edbrio da for\u00e7a axial de bombas centr\u00edfugas e bombas submers\u00edveis.<\/p>\n<p>Electrodom\u00e9sticos: Barril de desidrata\u00e7\u00e3o da m\u00e1quina de lavar roupa, fixa\u00e7\u00e3o do motor do ventilador.<\/p>","protected":false},"featured_media":9916,"template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_cat":[260],"product_tag":[261],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.0 - 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