{"id":9530,"date":"2025-02-26T02:53:20","date_gmt":"2025-02-26T02:53:20","guid":{"rendered":"https:\/\/www.skf-eu.com\/?post_type=product&p=9530"},"modified":"2025-05-12T09:48:07","modified_gmt":"2025-05-12T09:48:07","slug":"double-row-cylindrical-roller-bearings","status":"publish","type":"product","link":"https:\/\/www.skf-eu.com\/pt\/produto\/double-row-cylindrical-roller-bearings\/","title":{"rendered":"Rolamentos de rolos cil\u00edndricos de duas carreiras"},"content":{"rendered":"

Introdu\u00e7\u00e3o dos rolamentos de rolos cil\u00edndricos de duas carreiras<\/h2>\n

Rolamentos de rolos cil\u00edndricos de duas carreiras<\/strong><\/a> pertencem a um tipo de Rolamentos de rolos cil\u00edndricos<\/strong><\/a>que t\u00eam as vantagens de estrutura compacta, alta rigidez, grande capacidade de carga, pequena deforma\u00e7\u00e3o ap\u00f3s a carga, etc. S\u00e3o especialmente adequados para o suporte do eixo da m\u00e1quina-ferramenta. De acordo com a estrutura diferente dos elementos rolantes carregados, os rolamentos de rolos cil\u00edndricos de duas carreiras podem ser divididos em v\u00e1rios tipos, como o tipo NN, o tipo NNF, etc., e cada tipo tem os seus pr\u00f3prios cen\u00e1rios de aplica\u00e7\u00e3o espec\u00edficos e vantagens. Por exemplo, os rolamentos do tipo NNF podem suportar grandes cargas radiais e axiais, bem como momentos de inclina\u00e7\u00e3o, pelo que s\u00e3o frequentemente utilizados como rolamentos de extremidade fixa.<\/p>\n

\"Double<\/p>\n

Carater\u00edsticas principais:<\/h2>\n
    \n
  • Design de linha dupla<\/strong>: Duas filas de rolos cil\u00edndricos num \u00fanico rolamento proporcionam uma maior \u00e1rea de contacto, o que aumenta a capacidade de carga e a rigidez.<\/li>\n
  • Capacidade de carga axial<\/strong>: Para al\u00e9m da elevada capacidade de carga radial, os rolamentos de rolos cil\u00edndricos de duas carreiras tamb\u00e9m podem suportar cargas axiais em ambas as direc\u00e7\u00f5es, o que os torna adequados para aplica\u00e7\u00f5es de carga combinada.<\/li>\n
  • Elevada rigidez<\/strong>: A estrutura de duas carreiras resulta numa maior rigidez, tornando estes rolamentos ideais para aplica\u00e7\u00f5es de alta precis\u00e3o e elevada rigidez.<\/li>\n
  • Baixa fric\u00e7\u00e3o e baixo aumento de temperatura<\/strong>: Um atrito muito reduzido contribui para reduzir a produ\u00e7\u00e3o de calor, o que permite adaptar os rolamentos aos equipamentos de alta velocidade.<\/li>\n<\/ul>\n

    Tabela de par\u00e2metros parciais do produto<\/h2>\n\n\n\n\n\n\n\n\n\n
    Modelo<\/span><\/th>\nDi\u00e2metro interior (mm)<\/span><\/th>\nDi\u00e2metro exterior (mm)<\/span><\/th>\nLargura (mm)<\/span><\/th>\nCapacidade de carga din\u00e2mica\/est\u00e1tica (kN)<\/span><\/th>\nGama de velocidades (rpm)<\/span><\/th>\nPeso (kg)<\/span><\/th>\n<\/tr>\n<\/thead>\n
    NNU 4952<\/td>\n260<\/td>\n360<\/td>\n80<\/td>\n460\/340<\/td>\n2500<\/td>\n13.5<\/td>\n<\/tr>\n
    31310A<\/td>\n50<\/td>\n110<\/td>\n27<\/td>\n23\/15<\/td>\n4500<\/td>\n1.5<\/td>\n<\/tr>\n
    NN3009K<\/td>\n45<\/td>\n75<\/td>\n23<\/td>\n20\/13<\/td>\n5000<\/td>\n0.55<\/td>\n<\/tr>\n
    NNF 5024<\/td>\n120<\/td>\n180<\/td>\n46<\/td>\n120\/85<\/td>\n3000<\/td>\n4.0<\/td>\n<\/tr>\n
    30312A<\/td>\n60<\/td>\n130<\/td>\n31<\/td>\n25\/14<\/td>\n4200<\/td>\n1.2<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    Aplica\u00e7\u00f5es dos rolamentos de rolos cil\u00edndricos de duas carreiras<\/h2>\n

    Os rolamentos de rolos cil\u00edndricos de duas carreiras desempenham um papel importante em muitas \u00e1reas de maquinaria pesada, como m\u00e1quinas-ferramentas, metalurgia, minera\u00e7\u00e3o, petr\u00f3leo, ind\u00fastria qu\u00edmica e cimento. As carater\u00edsticas de desempenho significativas deste rolamento incluem uma excelente capacidade de carga pesada, para que possa facilmente enfrentar os desafios da maquinaria pesada; ao mesmo tempo, tamb\u00e9m pode suportar eficazmente a carga composta radial e axial, para garantir o funcionamento suave e fi\u00e1vel do equipamento. Al\u00e9m disso, o rolamento de rolos cil\u00edndricos de duas carreiras apresenta uma forte adaptabilidade \u00e0 velocidade, quer se trate de uma opera\u00e7\u00e3o a baixa ou alta velocidade, podendo manter um excelente desempenho. O seu design de alta precis\u00e3o aumenta a estabilidade e a exatid\u00e3o do trabalho, proporcionando uma garantia s\u00f3lida para v\u00e1rias aplica\u00e7\u00f5es industriais. Em resumo, os rolamentos de rolos cil\u00edndricos de duas carreiras t\u00eam sido amplamente utilizados e reconhecidos em muitos dom\u00ednios industriais devido \u00e0s suas excelentes carater\u00edsticas de desempenho.<\/p>\n

    aplica\u00e7\u00f5es, os rolamentos de rolos cil\u00edndricos de duas carreiras oferecem uma combina\u00e7\u00e3o de resist\u00eancia, fiabilidade e longa vida \u00fatil.<\/p>\n

    \"\" \"\"<\/p>\n

    FAQ<\/h2>\n

    1. Os rolamentos de rolos cil\u00edndricos de duas carreiras podem ser desmontados e montados? <\/b><\/strong><\/p>\n

    Os rolamentos de rolos cil\u00edndricos de duas carreiras podem ser desmontados, mas n\u00e3o podem ser utilizados ap\u00f3s a desmontagem. Os an\u00e9is interior e exterior destes rolamentos s\u00e3o de constru\u00e7\u00e3o separ\u00e1vel, mas em utiliza\u00e7\u00e3o normal t\u00eam de encaixar firmemente para suportar as pe\u00e7as rotativas.<\/b><\/strong><\/p>\n

    <\/b>2. Quais s\u00e3o os tipos mais comuns de rolamentos de rolos cil\u00edndricos de duas carreiras?<\/b><\/strong><\/p>\n

    Os rolamentos de rolos cil\u00edndricos de duas carreiras podem ser classificados em NNU, NN e outros modelos, dependendo do facto de o colar ter ou n\u00e3o uma aresta de bloqueio. Estes rolamentos s\u00e3o adequados para suportar cargas pesadas e cargas de choque, e tamb\u00e9m s\u00e3o adequados para ocasi\u00f5es de rota\u00e7\u00e3o de alta velocidade.<\/b><\/strong><\/p>\n

    \u00a03. <\/b><\/strong><\/b>Como instalar corretamente os rolamentos de rolos cil\u00edndricos de duas carreiras? <\/b><\/strong><\/p>\n

    A montagem de rolamentos de rolos cil\u00edndricos de duas carreiras pode ser efectuada por press\u00e3o ou montagem a quente. Ao utilizar uma prensa para pressionar, certifique-se de que o anel interior do rolamento est\u00e1 em contacto estreito com o ressalto do eixo, para evitar causar indenta\u00e7\u00e3o ou esmagamento na pista. Para as chumaceiras de grandes dimens\u00f5es, o m\u00e9todo de montagem a quente \u00e9 mais adequado, ou seja, a chumaceira \u00e9 aquecida e expandida em \u00f3leo e, em seguida, montada no veio para evitar adicionar for\u00e7a indevida \u00e0 chumaceira.<\/b><\/strong><\/p>\n

    <\/b>4. Rolamentos de rolos cil\u00edndricos de duas carreiras na utiliza\u00e7\u00e3o do processo de que falha pode ocorrer?<\/b><\/strong><\/p>\n

    As poss\u00edveis falhas dos rolamentos de rolos cil\u00edndricos de duas carreiras durante a utiliza\u00e7\u00e3o incluem a quebra dos an\u00e9is internos ou externos. Estas falhas podem ser causadas por cargas excessivas durante a montagem, grandes choques ou cargas de choque repetidas. Para al\u00e9m disso, as m\u00e1s condi\u00e7\u00f5es de lubrifica\u00e7\u00e3o da chumaceira tamb\u00e9m podem levar a falhas.<\/b><\/strong><\/p>","protected":false},"excerpt":{"rendered":"

    Elevada capacidade de carga, baixo coeficiente de atrito, elevada rigidez, capacidade de compensa\u00e7\u00e3o do deslocamento axial, v\u00e1rios tipos, f\u00e1cil de instalar e desmontar. Aplica\u00e7\u00f5es: Utilizados em fusos de m\u00e1quinas-ferramentas, laminadores, equipamento de eleva\u00e7\u00e3o, redutores de velocidade, motores el\u00e9ctricos e outros campos industriais, especialmente em cen\u00e1rios que exigem elevada rigidez, elevada precis\u00e3o e cargas elevadas.<\/p>","protected":false},"featured_media":9550,"template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_cat":[240,242],"product_tag":[262],"yoast_head":"\nChina Wholesale Double Row Cylindrical Roller Bearings Supplier - Comdale Bearing<\/title>\n<meta name=\"description\" content=\"As Professional Double Row Cylindrical Roller Bearings distributor , Comdale supply Roller Bearings, Ball Bearings, Plain Bearing, Slewing Ring Bearings, Combined Bearings, Linear Bearings\" \/>\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.skf-eu.com\/pt\/produto\/double-row-cylindrical-roller-bearings\/\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"China Wholesale Double Row Cylindrical Roller Bearings Supplier - 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