{"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\/fr\/produit\/nn3020-double-row-cylindrical-roller-bearing-high-load-precision-bearing-for-heavy-industrial-applications\/","title":{"rendered":"Roulement \u00e0 rouleaux cylindriques \u00e0 double rang\u00e9e NN3020 \u2013 Roulement de pr\u00e9cision haute charge pour applications industrielles lourdes"},"content":{"rendered":"

Le 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

Caract\u00e9ristiques cl\u00e9s<\/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
  • Faible friction et fonctionnement fluide<\/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

    Sp\u00e9cifications techniques<\/strong><\/span><\/h1>\n
    \n
    \n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
    Param\u00e8tre<\/th>\nValeur<\/th>\n<\/tr>\n<\/thead>\n
    Mod\u00e8le de roulement<\/td>\nNN3020<\/td>\n<\/tr>\n
    Diam\u00e8tre int\u00e9rieur (d)<\/td>\n100 mm<\/td>\n<\/tr>\n
    Diam\u00e8tre ext\u00e9rieur (D)<\/td>\n150 mm<\/td>\n<\/tr>\n
    Largeur (B)<\/td>\n37 mm<\/td>\n<\/tr>\n
    Type de roulement<\/td>\nDouble Row Cylindrical Roller Bearing (NN Type)<\/td>\n<\/tr>\n
    Mat\u00e9riau<\/td>\nAcier au chrome \/ Acier inoxydable<\/td>\n<\/tr>\n
    Mat\u00e9riau de la cage<\/td>\nAcier \/ Laiton<\/td>\n<\/tr>\n
    Lubrification<\/td>\nGraisse \/ Huile<\/td>\n<\/tr>\n
    Classe de pr\u00e9cision<\/td>\nP0 \/ P6 \/ P5<\/td>\n<\/tr>\n
    Temp\u00e9rature de fonctionnement<\/td>\n-20\u00b0C \u00e0 120\u00b0C<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

    Applications<\/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
    • \u00c9quipements de construction<\/li>\n
    • Large electric motors<\/li>\n
    • Paper and textile machinery<\/li>\n
    • Industrial transmission systems<\/li>\n<\/ul>\n

      Pourquoi nous choisir<\/strong><\/span><\/h1>\n
        \n
      • Forte capacit\u00e9 dans la fabrication de roulements lourds<\/li>\n
      • OEM and custom engineering support available<\/li>\n
      • Advanced production and heat treatment technology<\/li>\n
      • Syst\u00e8me d'inspection et de test de qualit\u00e9 strict<\/li>\n
      • Fast global delivery and stable supply<\/li>\n<\/ul>\n

        FAQ<\/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":"

        Le 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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