{"id":2414,"date":"2026-04-12T14:49:56","date_gmt":"2026-04-12T14:49:56","guid":{"rendered":"https:\/\/www.machinerybearings.com\/?post_type=product&p=2414"},"modified":"2026-05-04T12:45:14","modified_gmt":"2026-05-04T12:45:14","slug":"nn3020-double-row-cylindrical-roller-bearing-high-load-precision-bearing-for-heavy-industrial-applications","status":"publish","type":"product","link":"https:\/\/www.machinerybearings.com\/pt\/produto\/nn3020-double-row-cylindrical-roller-bearing-high-load-precision-bearing-for-heavy-industrial-applications\/","title":{"rendered":"Rolamento Cil\u00edndrico de Dupla Fileira NN3020 \u2013 Rolamento de Precis\u00e3o de Alta Carga para Aplica\u00e7\u00f5es Industriais Pesadas"},"content":{"rendered":"

The NN3020 Double Row Cylindrical Roller Bearing<\/strong> is a high-capacity precision bearing designed for applications requiring extremely high radial load capacity and excellent rigidity. Its double-row structure significantly increases load performance while maintaining stable operation under heavy-duty conditions.<\/p>\n

Unlike single-row bearings, the NN type features a non-locating design that allows axial displacement, making it ideal for systems where thermal expansion must be accommodated. This ensures smooth operation and reduced internal stress during continuous industrial use.<\/p>\n

Manufactured from high-quality chrome steel and available in stainless steel or special material options, the NN3020 bearing delivers long service life, low friction, and high reliability in demanding environments such as steel production, mining, and heavy machinery.<\/p>\n

Principais Caracter\u00edsticas<\/strong><\/span><\/h1>\n
    \n
  • Double row cylindrical roller design for ultra-high radial load capacity<\/li>\n
  • High rigidity and stable performance under heavy loads<\/li>\n
  • Non-locating structure allows axial displacement<\/li>\n
  • Baixo atrito e opera\u00e7\u00e3o suave<\/li>\n
  • Suitable for high-speed and heavy-duty applications<\/li>\n
  • Excellent durability and long service life<\/li>\n
  • Optional stainless steel and custom material versions<\/li>\n<\/ul>\n

    Especifica\u00e7\u00f5es T\u00e9cnicas<\/strong><\/span><\/h1>\n
    \n
    \n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
    Par\u00e2metro<\/th>\nValor<\/th>\n<\/tr>\n<\/thead>\n
    Modelo de Rolamento<\/td>\nNN3020<\/td>\n<\/tr>\n
    Di\u00e2metro Interno (d)<\/td>\n100 mm<\/td>\n<\/tr>\n
    Di\u00e2metro Externo (D)<\/td>\n150 mm<\/td>\n<\/tr>\n
    Largura (B)<\/td>\n37 mm<\/td>\n<\/tr>\n
    Tipo de Rolamento<\/td>\nDouble Row Cylindrical Roller Bearing (NN Type)<\/td>\n<\/tr>\n
    Material<\/td>\nA\u00e7o Cromado \/ A\u00e7o Inoxid\u00e1vel<\/td>\n<\/tr>\n
    Material da Gaiola<\/td>\nA\u00e7o \/ Lat\u00e3o<\/td>\n<\/tr>\n
    Lubrifica\u00e7\u00e3o<\/td>\nGraxa \/ \u00d3leo<\/td>\n<\/tr>\n
    Classifica\u00e7\u00e3o de Precis\u00e3o<\/td>\nP0 \/ P6 \/ P5<\/td>\n<\/tr>\n
    Temperatura de Opera\u00e7\u00e3o<\/td>\n-20\u00b0C a 120\u00b0C<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

    Aplica\u00e7\u00f5es<\/strong><\/span><\/h1>\n

    The NN3020 double row cylindrical roller bearing is widely used in:<\/p>\n

      \n
    • Steel rolling mills<\/li>\n
    • Heavy-duty industrial gearboxes<\/li>\n
    • Mining machinery<\/li>\n
    • Equipamentos de constru\u00e7\u00e3o<\/li>\n
    • Large electric motors<\/li>\n
    • Paper and textile machinery<\/li>\n
    • Industrial transmission systems<\/li>\n<\/ul>\n

      Por que nos escolher<\/strong><\/span><\/h1>\n
        \n
      • Forte capacidade na fabrica\u00e7\u00e3o de rolamentos para servi\u00e7os pesados<\/li>\n
      • OEM and custom engineering support available<\/li>\n
      • Advanced production and heat treatment technology<\/li>\n
      • Sistema rigoroso de inspe\u00e7\u00e3o e teste de qualidade<\/li>\n
      • Fast global delivery and stable supply<\/li>\n<\/ul>\n

        Perguntas Frequentes<\/strong><\/span><\/h1>\n

        Q1: What is the advantage of double row cylindrical roller bearings?<\/strong>
        A: They provide significantly higher radial load capacity and improved rigidity compared to single-row designs.<\/p>\n

        Q2: What is the difference between NN and NNU types?<\/strong>
        A: NN type allows axial displacement of the shaft, while NNU type allows axial displacement of the housing.<\/p>\n

        Q3: Can NN3020 be used in heavy industrial applications?<\/strong>
        A: Yes, it is specifically designed for heavy-load environments such as steel mills and mining equipment.<\/p>","protected":false},"excerpt":{"rendered":"

        The NN3020 Double Row Cylindrical Roller Bearing<\/strong> is a high-capacity precision bearing designed for applications requiring extremely high radial load capacity and excellent rigidity. Its double-row structure significantly increases load performance while maintaining stable operation under heavy-duty conditions.<\/p>","protected":false},"featured_media":2590,"comment_status":"open","ping_status":"closed","template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center 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