{"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\/cs\/produkt\/nn3020-double-row-cylindrical-roller-bearing-high-load-precision-bearing-for-heavy-industrial-applications\/","title":{"rendered":"NN3020 Dvoj\u0159ad\u00e9 v\u00e1lcov\u00e9 lo\u017eisko \u2013 Lo\u017eisko s vysokou p\u0159esnost\u00ed pro t\u011b\u017ek\u00e9 pr\u016fmyslov\u00e9 aplikace"},"content":{"rendered":"

Tento 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

Kl\u00ed\u010dov\u00e9 vlastnosti<\/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
  • N\u00edzk\u00e9 t\u0159en\u00ed a hladk\u00fd chod<\/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

    Technick\u00e9 specifikace<\/strong><\/span><\/h1>\n
    \n
    \n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
    Parametr<\/th>\nHodnota<\/th>\n<\/tr>\n<\/thead>\n
    Model lo\u017eiska<\/td>\nNN3020<\/td>\n<\/tr>\n
    Vnit\u0159n\u00ed pr\u016fm\u011br (d)<\/td>\n100 mm<\/td>\n<\/tr>\n
    Vn\u011bj\u0161\u00ed pr\u016fm\u011br (D)<\/td>\n150 mm<\/td>\n<\/tr>\n
    \u0160\u00ed\u0159ka (B)<\/td>\n37 mm<\/td>\n<\/tr>\n
    Typ lo\u017eiska<\/td>\nDouble Row Cylindrical Roller Bearing (NN Type)<\/td>\n<\/tr>\n
    Materi\u00e1l<\/td>\nChromov\u00e1 ocel \/ Nerezov\u00e1 ocel<\/td>\n<\/tr>\n
    Materi\u00e1l klece<\/td>\nOcel \/ Mosaz<\/td>\n<\/tr>\n
    Maz\u00e1n\u00ed<\/td>\nMazivo \/ Olej<\/td>\n<\/tr>\n
    T\u0159\u00edda p\u0159esnosti<\/td>\nP0 \/ P6 \/ P5<\/td>\n<\/tr>\n
    Prev\u00e1dzkov\u00e1 teplota<\/td>\n-20\u00b0C a\u017e 120\u00b0C<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

    Aplikace<\/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
    • Stavebn\u00ed stroje<\/li>\n
    • Large electric motors<\/li>\n
    • Paper and textile machinery<\/li>\n
    • Industrial transmission systems<\/li>\n<\/ul>\n

      Pro\u010d si vybrat n\u00e1s<\/strong><\/span><\/h1>\n
        \n
      • Siln\u00e1 schopnost ve v\u00fdrob\u011b lo\u017eisek pro t\u011b\u017ek\u00e9 zat\u00ed\u017een\u00ed<\/li>\n
      • OEM and custom engineering support available<\/li>\n
      • Advanced production and heat treatment technology<\/li>\n
      • P\u0159\u00edsn\u00fd syst\u00e9m kontroly kvality a testov\u00e1n\u00ed<\/li>\n
      • Fast global delivery and stable supply<\/li>\n<\/ul>\n

        \u010casto kladen\u00e9 ot\u00e1zky<\/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":"

        Tento 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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