{"id":2528,"date":"2026-03-08T09:06:00","date_gmt":"2026-03-08T01:06:00","guid":{"rendered":"https:\/\/www.takebrakes.com\/?p=2528"},"modified":"2026-02-24T17:09:47","modified_gmt":"2026-02-24T09:09:47","slug":"brake-torque-testing-and-verification","status":"publish","type":"post","link":"https:\/\/www.takebrakes.com\/fr\/brake-torque-testing-and-verification\/","title":{"rendered":"Test et v\u00e9rification du couple de frein : Comment prouver que votre frein maintient la charge"},"content":{"rendered":"

You\u2019ve installed the brake, adjusted the clearance, and wired the controls. But does it actually hold the rated torque? In critical lifting (hoists, elevators) and holding (conveyors, wind turbines) applications, trust is not enough<\/strong>. You need proof.<\/p>\n\n\n\n

This article outlines the practical methods for verifying brake torque<\/strong> on site, from simple static load tests to dynamic functional checks. We cover procedures applicable to YWZ13 drum brakes<\/strong><\/a>, SH fail-safe disc brakes<\/strong><\/a>et SE electromagnetic brakes<\/strong><\/a>.<\/p>\n\n\n\n

Diagramme d'un montage de test de couple statique : cellule de charge sur un bras de levier attach\u00e9 \u00e0 l'arbre de frein.<\/p>\n\n\n\n

1) Pourquoi le couple nominal \u2260 le couple r\u00e9el<\/h2>\n\n\n\n

Une plaque signal\u00e9tique de frein peut indiquer \u00ab 2000 N\u00b7m \u00bb, mais le couple de maintien r\u00e9el d\u00e9pend de :<\/p>\n\n\n\n

    \n
  • Rodage :<\/strong> Les nouvelles doublures ne contactent que 50\u201360 % de la surface. Le couple est plus faible jusqu'\u00e0 ce qu'il soit rod\u00e9.<\/li>\n\n\n\n
  • R\u00e9glage du ressort :<\/strong> Si la longueur du ressort est mal r\u00e9gl\u00e9e (trop longue), la force de serrage est faible.<\/li>\n\n\n\n
  • \u00c9tat de friction :<\/strong> L'huile, la graisse ou la rouille sur le disque\/tambour r\u00e9duisent le coefficient de friction ($\\mu$).<\/li>\n\n\n\n
  • Temp\u00e9rature :<\/strong> Les freins chauds s'estompent. Les freins froids peuvent saisir.<\/li>\n<\/ul>\n\n\n\n

    2) M\u00e9thode A : Test de charge statique (le test \u00ab poids mort \u00bb)<\/h2>\n\n\n\n

    This is the standard for cranes and hoists. It tests the brake’s ability to hold<\/strong> a stationary load.<\/p>\n\n\n\n

    Proc\u00e9dure<\/h3>\n\n\n\n
      \n
    1. Appliquer le frein :<\/strong> Assurez-vous que le frein est compl\u00e8tement ferm\u00e9 (ressorts comprim\u00e9s).<\/li>\n\n\n\n
    2. Appliquer la charge d'essai :<\/strong>\n
        \n
      • Palans :<\/strong> Soulevez 125 % de la charge nominale (SWL) l\u00e9g\u00e8rement au-dessus du sol. Maintenez pendant 10 minutes.<\/li>\n\n\n\n
      • Treuils\/Convoyeurs :<\/strong> Appliquez le couple via le moteur (si capable) ou un bras de levier avec des poids.<\/li>\n<\/ul>\n<\/li>\n\n\n\n
      • Mesurer le glissement :<\/strong> Marquez la roue\/disque de frein et un point fixe. Si la marque bouge, le frein a \u00e9chou\u00e9.<\/li>\n\n\n\n
      • S\u00e9curit\u00e9 :<\/strong> Gardez la charge pr\u00e8s du sol. Ayez un frein de secours ou un blocage pr\u00eat.<\/li>\n<\/ol>\n\n\n\n

        3) M\u00e9thode B : Test de glissement dynamique (le test \u00ab Motor Drive-Through \u00bb)<\/h2>\n\n\n\n

        This tests the brake’s maximum breakaway torque<\/strong>. It is safer than lifting weights because the load is generated by the motor against the brake.<\/p>\n\n\n\n

        Proc\u00e9dure<\/h3>\n\n\n\n
          \n
        1. Verrouiller la sortie :<\/strong> (Optionnel) Si vous testez le frein moteur, verrouillez m\u00e9caniquement l'arbre de sortie de la bo\u00eete de vitesses (si c'est s\u00fbr).<\/li>\n\n\n\n
        2. Appliquer le frein :<\/strong> Maintenez le frein ferm\u00e9.<\/li>\n\n\n\n
        3. Augmenter progressivement le couple moteur :<\/strong> Utilisez le VFD pour augmenter lentement le couple moteur contre le frein ferm\u00e9.<\/li>\n\n\n\n
        4. Surveillez le courant\/couple :<\/strong> Surveillez le retour d'information de couple du VFD.<\/li>\n\n\n\n
        5. D\u00e9tecter le glissement :<\/strong> Notez la valeur de couple o\u00f9 l'arbre de frein commence \u00e0 tourner (glissement).<\/li>\n\n\n\n
        6. R\u00e9sultat :<\/strong> Si le glissement se produit \u00e0 < 150\u2013200 % du couple moteur nominal (selon la taille du frein), le frein est faible.<\/li>\n<\/ol>\n\n\n\n

          Warning:<\/strong> Do not run this test for more than a few seconds. Slipping a closed brake generates massive heat rapidly. Cool down between attempts.<\/p>\n\n\n\n

          4) M\u00e9thode C : Test de distance d'arr\u00eat (v\u00e9rification fonctionnelle)<\/h2>\n\n\n\n

          For travel drives and conveyors, holding torque matters less than stopping energy<\/strong>.<\/p>\n\n\n\n

          Proc\u00e9dure<\/h3>\n\n\n\n
            \n
          1. Fonctionner \u00e0 pleine vitesse :<\/strong> Faire fonctionner la machine \u00e0 vitesse normale avec une charge normale.<\/li>\n\n\n\n
          2. Arr\u00eat d'urgence :<\/strong> D\u00e9clencher un arr\u00eat d'urgence (couper l'alimentation du frein imm\u00e9diatement).<\/li>\n\n\n\n
          3. Mesurer la distance\/temps :<\/strong> Enregistrez le temps ou la distance jusqu'\u00e0 l'arr\u00eat complet.<\/li>\n\n\n\n
          4. Comparer :<\/strong> Est-ce dans la limite de s\u00e9curit\u00e9 ? (par exemple, < 3 m\u00e8tres). Si la distance d'arr\u00eat augmente avec le temps, le couple de frein diminue ou les doublures sont us\u00e9es.<\/li>\n<\/ol>\n\n\n\n

            5) D\u00e9pannage du couple faible<\/h2>\n\n\n\n
            Cause li\u00e9e \u00e0 l\u2019huile (courante)<\/th>Cause probable<\/th>R\u00e9parer<\/th><\/tr><\/thead>
            Glissement \u00e0 < 80 % de la capacit\u00e9 nominale<\/strong><\/td>Huile\/graisse sur la surface de friction.<\/td>Nettoyez le disque\/tambour avec un solvant. Remplacez les doublures contamin\u00e9es (elles absorbent l'huile).<\/td><\/tr>
            Glissement \u00e0 80\u201390 % de la capacit\u00e9 nominale<\/strong><\/td>Nouvelles doublures non rod\u00e9es.<\/td>Effectuer des cycles de rodage (arr\u00eats l\u00e9gers) pour am\u00e9liorer la zone de contact.<\/td><\/tr>
            Le couple diminue lorsqu'il est chaud.<\/strong><\/td>Mauvais mat\u00e9riau de doublure (grade basse temp\u00e9rature) ou tra\u00een\u00e9e.<\/td>V\u00e9rifiez la tra\u00een\u00e9e (course du pousseur). Passez \u00e0 une doublure de temp\u00e9rature plus \u00e9lev\u00e9e.<\/td><\/tr>
            Le couple fluctue.<\/strong><\/td>Surface \u00e9maill\u00e9e ou pression de ressort in\u00e9gale.<\/td>Poncer la surface de friction pour enlever le vernis. V\u00e9rifiez les r\u00e9glages des ressorts.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

            6) Documentation : Le certificat de couple<\/h2>\n\n\n\n

            For critical projects, we provide a factory torque test certificate<\/strong>. This documents that the specific serial number brake held its rated torque on our test bench before shipping. However, on-site verification is still recommended to account for installation variables.<\/p>\n\n\n\n

            Besoin d'une proc\u00e9dure ou d'un certificat de test de couple ?<\/h2>\n\n\n\n

            If you need a formal brake torque test procedure<\/strong> for your maintenance team or a replacement brake with a certified torque rating, contact us. We can support your commissioning process.<\/p>","protected":false},"excerpt":{"rendered":"

            You\u2019ve installed the brake, adjusted the clearance, and wired the controls. But does it actually hold the rated torque? In critical lifting (hoists, elevators) and holding (conveyors, wind turbines) applications, trust is not enough. You need proof. This article outlines the practical methods for verifying brake torque on site, from simple static load tests to […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[5,3],"tags":[],"class_list":["post-2528","post","type-post","status-publish","format-standard","hentry","category-info","category-blog"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.takebrakes.com\/fr\/wp-json\/wp\/v2\/posts\/2528","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.takebrakes.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.takebrakes.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.takebrakes.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.takebrakes.com\/fr\/wp-json\/wp\/v2\/comments?post=2528"}],"version-history":[{"count":1,"href":"https:\/\/www.takebrakes.com\/fr\/wp-json\/wp\/v2\/posts\/2528\/revisions"}],"predecessor-version":[{"id":2529,"href":"https:\/\/www.takebrakes.com\/fr\/wp-json\/wp\/v2\/posts\/2528\/revisions\/2529"}],"wp:attachment":[{"href":"https:\/\/www.takebrakes.com\/fr\/wp-json\/wp\/v2\/media?parent=2528"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.takebrakes.com\/fr\/wp-json\/wp\/v2\/categories?post=2528"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.takebrakes.com\/fr\/wp-json\/wp\/v2\/tags?post=2528"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}