{"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\/de\/produkt\/nn3020-double-row-cylindrical-roller-bearing-high-load-precision-bearing-for-heavy-industrial-applications\/","title":{"rendered":"NN3020 Doppelte Reihe zylindrisches Rollenlager \u2013 Hochlast-Pr\u00e4zisionslager f\u00fcr schwere industrielle Anwendungen"},"content":{"rendered":"

Das 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

Hauptmerkmale<\/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
  • Geringe Reibung und sanfter Betrieb<\/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

    Technische Spezifikationen<\/strong><\/span><\/h1>\n
    \n
    \n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
    Parameter<\/th>\nWert<\/th>\n<\/tr>\n<\/thead>\n
    Lager Modell<\/td>\nNN3020<\/td>\n<\/tr>\n
    Innendurchmesser (d)<\/td>\n100 mm<\/td>\n<\/tr>\n
    Au\u00dfendurchmesser (D)<\/td>\n150 mm<\/td>\n<\/tr>\n
    Breite (B)<\/td>\n37 mm<\/td>\n<\/tr>\n
    Lagerart<\/td>\nDouble Row Cylindrical Roller Bearing (NN Type)<\/td>\n<\/tr>\n
    Material<\/td>\nChromstahl \/ Edelstahl<\/td>\n<\/tr>\n
    K\u00e4figmaterial<\/td>\nStahl \/ Messing<\/td>\n<\/tr>\n
    Schmierung<\/td>\nFett \/ \u00d6l<\/td>\n<\/tr>\n
    Pr\u00e4zisionsbewertung<\/td>\nP0 \/ P6 \/ P5<\/td>\n<\/tr>\n
    Betriebstemperatur<\/td>\n-20\u00b0C bis 120\u00b0C<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

    Anwendungen<\/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
    • Baumaschinen<\/li>\n
    • Large electric motors<\/li>\n
    • Paper and textile machinery<\/li>\n
    • Industrial transmission systems<\/li>\n<\/ul>\n

      Warum uns w\u00e4hlen<\/strong><\/span><\/h1>\n
        \n
      • Starke F\u00e4higkeit in der Herstellung von Schwerlastlagern<\/li>\n
      • OEM and custom engineering support available<\/li>\n
      • Advanced production and heat treatment technology<\/li>\n
      • Strenges Qualit\u00e4tspr\u00fcfungs- und Testsystem<\/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":"

        Das 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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