{"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\/fr\/produit\/double-row-cylindrical-roller-bearings\/","title":{"rendered":"Roulements \u00e0 rouleaux cylindriques \u00e0 deux rang\u00e9es"},"content":{"rendered":"

Introduction of Double Row Cylindrical Roller Bearings<\/h2>\n

Double row Cylindrical Roller Bearings<\/strong><\/a> belong to one kind of Roulements \u00e0 rouleaux cylindriques<\/strong><\/a>, which have the advantages of compact structure, high rigidity, large load carrying capacity, small deformation after load, etc. They are especially suitable for machine tool spindle support. According to the different structure of the loaded rolling elements, double row cylindrical roller bearings can be divided into various types, such as NN type, NNF type, etc., and each type has its own specific application scenarios and advantages. For example, NNF type bearings can withstand large radial and axial loads, as well as tilting moments, so they are often used as fixed end bearings.<\/p>\n

\"Double<\/p>\n

Caract\u00e9ristiques principales :<\/h2>\n
    \n
  • Mod\u00e8le \u00e0 double rang\u00e9e<\/strong>: Deux rang\u00e9es de rouleaux cylindriques dans un seul roulement offrent une plus grande surface de contact, ce qui augmente la capacit\u00e9 de charge et la rigidit\u00e9.<\/li>\n
  • Capacit\u00e9 de charge axiale<\/strong>: Outre une capacit\u00e9 de charge radiale \u00e9lev\u00e9e, les roulements \u00e0 rouleaux cylindriques \u00e0 deux rang\u00e9es peuvent \u00e9galement supporter des charges axiales dans les deux sens, ce qui les rend adapt\u00e9s aux applications \u00e0 charges combin\u00e9es.<\/li>\n
  • Grande rigidit\u00e9<\/strong>: La structure \u00e0 deux rang\u00e9es permet d'obtenir une plus grande rigidit\u00e9, ce qui rend ces roulements id\u00e9aux pour les applications de haute pr\u00e9cision et de grande rigidit\u00e9.<\/li>\n
  • Faible frottement et faible \u00e9l\u00e9vation de temp\u00e9rature<\/strong>: Un frottement fortement r\u00e9duit contribue \u00e0 diminuer la production de chaleur, ce qui permet d'adapter les roulements aux \u00e9quipements dans les applications \u00e0 grande vitesse.<\/li>\n<\/ul>\n

    Tableau partiel des param\u00e8tres du produit<\/h2>\n\n\n\n\n\n\n\n\n\n
    Mod\u00e8le<\/span><\/th>\nDiam\u00e8tre int\u00e9rieur (mm)<\/span><\/th>\nDiam\u00e8tre ext\u00e9rieur (mm)<\/span><\/th>\nLargeur (mm)<\/span><\/th>\nCapacit\u00e9 de charge dynamique\/statique (kN)<\/span><\/th>\nPlage de vitesse (tr\/min)<\/span><\/th>\nPoids (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

    Applications of Double Row Cylindrical Roller Bearings<\/h2>\n

    Double row cylindrical roller bearings play a significant role in many heavy machinery fields such as machine tools, metallurgy, mining, petroleum, chemical industry and cement. The significant performance characteristics of this bearing include excellent heavy load bearing capacity, so that it can easily meet the challenges of heavy machinery; at the same time, it can also effectively withstand the radial and axial composite load, to ensure the smooth and reliable operation of the equipment. In addition, double row cylindrical roller bearing shows strong speed adaptability, whether low speed or high speed operation, can maintain excellent performance. Its high-precision design enhances the stability and accuracy of the work, providing a solid guarantee for various industrial applications. In summary, double row cylindrical roller bearing have been widely used and recognised in many industrial fields due to their excellent performance characteristics.<\/p>\n

    applications, double row cylindrical roller bearing offers a combination of strength, reliability, and long service life.<\/p>\n

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

    FAQ<\/h2>\n

    1. Les roulements \u00e0 rouleaux cylindriques \u00e0 deux rang\u00e9es peuvent-ils \u00eatre d\u00e9mont\u00e9s et mont\u00e9s ? <\/b><\/strong><\/p>\n

    Les roulements \u00e0 rouleaux cylindriques \u00e0 deux rang\u00e9es peuvent \u00eatre d\u00e9mont\u00e9s, mais ils ne peuvent pas \u00eatre utilis\u00e9s apr\u00e8s le d\u00e9montage. Les bagues int\u00e9rieures et ext\u00e9rieures de ces roulements sont s\u00e9parables, mais en utilisation normale, elles doivent s'ajuster \u00e9troitement pour supporter les pi\u00e8ces en rotation.<\/b><\/strong><\/p>\n

    <\/b>2. Quels sont les types courants de roulements \u00e0 rouleaux cylindriques \u00e0 deux rang\u00e9es ?<\/b><\/strong><\/p>\n

    Les roulements \u00e0 rouleaux cylindriques \u00e0 deux rang\u00e9es peuvent \u00eatre class\u00e9s dans les cat\u00e9gories NNU, NN et autres mod\u00e8les selon que le collet pr\u00e9sente ou non un bord de d\u00e9crochage. Ces roulements conviennent pour supporter des charges lourdes et des chocs, et sont \u00e9galement adapt\u00e9s aux situations de rotation \u00e0 grande vitesse.<\/b><\/strong><\/p>\n

    \u00a03. <\/b><\/strong><\/b>Comment installer correctement les roulements \u00e0 rouleaux cylindriques \u00e0 deux rang\u00e9es ? <\/b><\/strong><\/p>\n

    Le montage des roulements \u00e0 rouleaux cylindriques \u00e0 deux rang\u00e9es peut se faire par emmanchement \u00e0 la presse ou \u00e0 chaud. Lorsqu'on utilise une presse pour l'emmanchement, il faut s'assurer que la bague int\u00e9rieure du roulement est en contact \u00e9troit avec l'\u00e9paulement de l'arbre afin d'\u00e9viter de causer une indentation ou un \u00e9crasement sur le chemin de roulement. Pour les roulements de grande taille, la m\u00e9thode de montage \u00e0 chaud est plus appropri\u00e9e, c'est-\u00e0-dire que le roulement est chauff\u00e9 et expans\u00e9 dans l'huile, puis mont\u00e9 sur l'arbre afin d'\u00e9viter d'ajouter une force excessive au roulement.<\/b><\/strong><\/p>\n

    <\/b>4. Roulements \u00e0 rouleaux cylindriques \u00e0 deux rang\u00e9es dans l'utilisation du processus de quelle d\u00e9faillance peut se produire ?<\/b><\/strong><\/p>\n

    Les d\u00e9faillances possibles des roulements \u00e0 rouleaux cylindriques \u00e0 deux rang\u00e9es en cours d'utilisation comprennent la rupture des bagues int\u00e9rieures ou ext\u00e9rieures. Ces d\u00e9faillances peuvent \u00eatre caus\u00e9es par des charges excessives lors du montage, des chocs importants ou des chocs r\u00e9p\u00e9t\u00e9s. En outre, de mauvaises conditions de lubrification du roulement peuvent \u00e9galement entra\u00eener des d\u00e9faillances.<\/b><\/strong><\/p>","protected":false},"excerpt":{"rendered":"

    Capacit\u00e9 de charge \u00e9lev\u00e9e, faible coefficient de frottement, grande rigidit\u00e9, capacit\u00e9 de compensation du d\u00e9placement axial, diff\u00e9rents types, faciles \u00e0 installer et \u00e0 d\u00e9monter. Applications : Utilis\u00e9es dans les broches de machines-outils, les laminoirs, les \u00e9quipements de levage, les r\u00e9ducteurs de vitesse, les moteurs \u00e9lectriques et d'autres domaines industriels, en particulier dans les sc\u00e9narios n\u00e9cessitant une grande rigidit\u00e9, une grande pr\u00e9cision et des charges \u00e9lev\u00e9es.<\/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\/fr\/produit\/double-row-cylindrical-roller-bearings\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\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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