{"id":4959,"date":"2026-01-03T14:33:00","date_gmt":"2026-01-03T06:33:00","guid":{"rendered":"https:\/\/www.slewbearingtec.com\/?p=4959"},"modified":"2026-03-05T15:27:00","modified_gmt":"2026-03-05T07:27:00","slug":"essai-de-basculement-du-palier-dorientation-de-la-grue","status":"publish","type":"post","link":"https:\/\/www.slewbearingtec.com\/fr\/essai-de-basculement-du-palier-dorientation-de-la-grue-html","title":{"rendered":"Essai de basculement du palier d'orientation de la grue"},"content":{"rendered":"<div class=\"wp-block-themepark-block-themepark-wright content-super-p  blog-jiange\" style=\"font-size:16px;line-height:28px;color:#211c1c;padding:10px 20px;\">\n<div class=\"wp-block-column\">\n<p>Pour effectuer un test correct de basculement du roulement d'orientation de la grue, vous devez mesurer le d\u00e9placement axial du roulement sous l'effet de moments de charge oppos\u00e9s. Tout d'abord, positionnez la fl\u00e8che de la grue de mani\u00e8re \u00e0 cr\u00e9er un moment maximal vers l'avant et mettez \u00e0 z\u00e9ro votre comparateur magn\u00e9tique, en pla\u00e7ant la sonde entre la superstructure en rotation et la bague fixe du ch\u00e2ssis. Ensuite, inversez le moment (g\u00e9n\u00e9ralement en soulevant une lourde charge ou en augmentant la fl\u00e8che jusqu'\u00e0 un rayon minimum) pour \"faire basculer\" le roulement vers l'arri\u00e8re. Enregistrez la d\u00e9flexion totale indiqu\u00e9e sur le cadran. Comparez cette valeur au tableau d'usure maximale admissible du fabricant ; en g\u00e9n\u00e9ral, une d\u00e9flexion sup\u00e9rieure \u00e0 2,0 mm ou 3,0 mm (selon le diam\u00e8tre de la bille et le mod\u00e8le de grue) indique une fatigue structurelle et n\u00e9cessite le remplacement imm\u00e9diat du roulement afin d'\u00e9viter une d\u00e9faillance catastrophique.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Understand_The_Physical_Logic_Behind_Swing_Testing\"><\/span>Comprendre la logique physique des tests d'oscillation<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>L'objectif fondamental de ce test est de quantifier le degr\u00e9 d'usure des chemins de roulement et des \u00e9l\u00e9ments roulants. Pour ce faire, nous mesurons le d\u00e9placement axial.<\/p>\n\n\n\n<p>Lorsque des roulements neufs sortent de l'usine, le jeu interne est tr\u00e8s faible. Cependant, apr\u00e8s une longue p\u00e9riode de travail sur le chantier, la bille ou le rouleau s'\u00e9crase continuellement sur le chemin de roulement, et l'espace devient naturellement plus important. En d'autres termes, le test d'oscillation consiste \u00e0 utiliser les deux moments de charge oppos\u00e9s avant et apr\u00e8s le test d'oscillation pour \"pousser\" le roulement d'une position extr\u00eame \u00e0 l'autre. Ce d\u00e9placement physique r\u00e9v\u00e8le directement l'ampleur du \"jeu\" vertical g\u00e9n\u00e9r\u00e9 \u00e0 l'int\u00e9rieur de l'ensemble du composant.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"437\" src=\"https:\/\/www.slewbearingtec.com\/wp-content\/uploads\/2026\/01\/image-28-1024x437.jpg\" alt=\"Pourquoi un essai d&#039;oscillation est-il effectu\u00e9 sur les roulements d&#039;orientation des grues ?\" class=\"wp-image-4961\" srcset=\"https:\/\/www.slewbearingtec.com\/wp-content\/uploads\/2026\/01\/image-28-1024x437.jpg 1024w, https:\/\/www.slewbearingtec.com\/wp-content\/uploads\/2026\/01\/image-28-300x128.jpg 300w, https:\/\/www.slewbearingtec.com\/wp-content\/uploads\/2026\/01\/image-28-768x328.jpg 768w, https:\/\/www.slewbearingtec.com\/wp-content\/uploads\/2026\/01\/image-28-18x8.jpg 18w, https:\/\/www.slewbearingtec.com\/wp-content\/uploads\/2026\/01\/image-28.jpg 1206w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Necessary_Tools_For_Work\"><\/span>Outils n\u00e9cessaires au travail<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Selon le processus, la pr\u00e9cision est l'\u00e9l\u00e9ment essentiel. Le type qui mange est principalement un comparateur \u00e0 base magn\u00e9tique.<\/p>\n\n\n\n<p>Placement : La base doit \u00eatre fermement aspir\u00e9e sur le ch\u00e2ssis (ou d'autres parties fixes) et ne doit pas trembler. La sonde doit traverser l'espace et se trouver au-dessus de la structure sup\u00e9rieure en rotation.<\/p>\n\n\n\n<p>Z\u00e9ro : il est tr\u00e8s important de remettre la table \u00e0 z\u00e9ro au moment de l'inclinaison maximale vers l'avant. Si la table n'est pas remise \u00e0 z\u00e9ro avant l'inversion de la charge, les derni\u00e8res donn\u00e9es lues n'ont aucun sens, ce qui entra\u00eene un diagnostic erron\u00e9 de l'\u00e9tat de sant\u00e9 du roulement.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Stepwise_Disassembly_Of_The_Measurement_Process\"><\/span>D\u00e9montage progressif du processus de mesure<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Step_1_Make_The_Maximum_Forward_Tilting_Moment\"><\/span>Etape 1 : Faire le maximum de mouvement d'inclinaison vers l'avant<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>La premi\u00e8re \u00e9tape du test consiste \u00e0 d\u00e9placer le centre de gravit\u00e9. Placez le grand bras vers l'avant (g\u00e9n\u00e9ralement allong\u00e9 sur le grand rayon sans charge, ou avec une charge l\u00e9g\u00e8re, selon les instructions de la voiture), et utilisez le poids du grand bras pour forcer la structure de la voiture \u00e0 \"planter\" vers l'avant. Cela aura pour effet de comprimer l'extr\u00e9mit\u00e9 avant du roulement et de faire basculer l'extr\u00e9mit\u00e9 arri\u00e8re.<\/p>\n\n\n\n<p>Note : C'est le meilleur moment pour installer et mettre \u00e0 z\u00e9ro le comparateur \u00e0 l'arri\u00e8re du roulement.<\/p>\n\n\n\n<section class=\"wp-block-themepark-block-themepark-area block_layout thempark-block\" id=\"maxw\" style=\"padding-bottom:60px;padding-top:60px;\" data-swiper-parallax=\"-700\"><div class=\"block_layout_in clomnsmal  clomnnone\" style=\"\">\n<div class=\"wp-block-column block_layout_in\">\n<div class=\"wp-block-columns\">\n<div class=\"wp-block-column\">\n<section class=\"wp-block-themepark-block-themepark-area block_layout thempark-block undefined  newproduct-hover\" id=\"maxw\" style=\"\" data-swiper-parallax=\"-700\"><div class=\"block_layout_in\" style=\"\">\n<div class=\"wp-block-column block_layout_in\">\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading has-text-align-center has-monte-white-color has-text-color has-link-color wp-elements-daf1ee6944680a904474e06b6426c596\" style=\"font-size:20px\"><span class=\"ez-toc-section\" id=\"Single_Row_Ball_Slewing_Bearing\"><\/span><strong>Douille \u00e0 billes \u00e0 une rang\u00e9e<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<div class=\"wp-block-themepark-block-themepark-wright content-super-p\" style=\"font-size:13px;line-height:26px;color:#ffffff;padding:10px 10px;\">\n<div class=\"wp-block-column\">\n<p class=\"has-text-align-center has-text-color has-link-color wp-elements-dd58f9899cd92bc6cc0f460b6a252a6a\" style=\"color:#ececec\">Les rotules \u00e0 une rang\u00e9e de billes sont divis\u00e9es en structure \u00e0 denture interne, \u00e0 denture externe et sans dent, qui conviennent \u00e0 une grande vari\u00e9t\u00e9 de besoins en mati\u00e8re de transmission.&nbsp;<\/p>\n<\/div>\n<\/div>\n\n\n\n<div style=\"height:22px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-themepark-block-btn themepark-i-btn-out shadow  productfenleianniu\" style=\"text-align:center;\"><div class=\"themepark-i-btn-out_ins\" style=\"\"><div class=\"themepark-i-btn-out_in\"><div class=\"themepark-i-btn\" style=\"background-color:#ffffff99;color:#333333;font-size:20px;border:solid 1px #ccc;border-radius:20px;padding:3px 10px;\"><a href=\"https:\/\/www.slewbearingtec.com\/fr\/roulements-a-billes-a-une-rangee-html\/\" rel=\"noopener noreferrer \">Obtenir un devis<\/a><a class=\"hovers\" data-title=\"Get Quote\" style=\"color:#333333;background-color:#ffffff99;padding:3px 10px;border-radius:20px;\" href=\"https:\/\/www.slewbearingtec.com\/fr\/roulements-a-billes-a-une-rangee-html\/\" rel=\"noopener noreferrer\" target=\"_self\"><\/a><\/div><\/div><\/div><\/div>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<\/div>\n<\/div><div class=\"layout_badh\"><div class=\"PcOnly themepark-block_layout_ba lazyload swiper-lazy\" style=\"background-repeat:no-repeat;background-size:cover;background-position:center;\" data-background=\"https:\/\/www.slewbearingtec.com\/wp-content\/uploads\/2026\/01\/image1.jpg\"><\/div><div class=\"MovePnly themepark-block_layout_ba lazyload swiper-move-lazy\" style=\"background-repeat:no-repeat;background-size:cover;background-position:center;\" data-background=\"https:\/\/www.slewbearingtec.com\/wp-content\/uploads\/2026\/01\/image1.jpg\"><\/div><\/div><\/section>\n<\/div>\n\n\n\n<div class=\"wp-block-column\" style=\"flex-basis:10px\"><\/div>\n\n\n\n<div class=\"wp-block-column\">\n<section class=\"wp-block-themepark-block-themepark-area block_layout thempark-block undefined  newproduct-hover\" id=\"maxw\" style=\"\" data-swiper-parallax=\"-700\"><div class=\"block_layout_in\" style=\"\">\n<div class=\"wp-block-column block_layout_in\">\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading has-text-align-center has-monte-white-color has-text-color has-link-color wp-elements-bf33c33292ba39d894223d056392733c\" style=\"font-size:20px\"><span class=\"ez-toc-section\" id=\"Double_Row_Ball_Slewing_Bearing\"><\/span><strong>Roulement \u00e0 billes \u00e0 double rang\u00e9e<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<div class=\"wp-block-themepark-block-themepark-wright content-super-p\" style=\"font-size:13px;line-height:26px;color:#ffffff;padding:10px 10px;\">\n<div class=\"wp-block-column\">\n<p class=\"has-text-align-center has-text-color has-link-color wp-elements-32266f73fe49fe024cbe33f0f3fa5945\" style=\"color:#ececec\">Les rotules \u00e0 deux rang\u00e9es de billes sont sp\u00e9cialement con\u00e7ues pour les charges tr\u00e8s lourdes.&nbsp;<\/p>\n<\/div>\n<\/div>\n\n\n\n<div style=\"height:22px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-themepark-block-btn themepark-i-btn-out shadow  productfenleianniu\" style=\"text-align:center;\"><div class=\"themepark-i-btn-out_ins\" style=\"\"><div class=\"themepark-i-btn-out_in\"><div class=\"themepark-i-btn\" style=\"background-color:#ffffff99;color:#333333;font-size:20px;border:solid 1px #ccc;border-radius:20px;padding:3px 10px;\"><a href=\"https:\/\/www.slewbearingtec.com\/fr\/roulements-a-billes-a-deux-rangees-html\/\" rel=\"noopener noreferrer \">Obtenir un devis<\/a><a class=\"hovers\" data-title=\"Get Quote\" style=\"color:#333333;background-color:#ffffff99;padding:3px 10px;border-radius:20px;\" href=\"https:\/\/www.slewbearingtec.com\/fr\/roulements-a-billes-a-deux-rangees-html\/\" rel=\"noopener noreferrer\" target=\"_self\"><\/a><\/div><\/div><\/div><\/div>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<\/div>\n<\/div><div class=\"layout_badh\"><div class=\"PcOnly themepark-block_layout_ba lazyload swiper-lazy\" style=\"background-repeat:no-repeat;background-size:cover;background-position:center;\" data-background=\"https:\/\/www.slewbearingtec.com\/wp-content\/uploads\/2026\/01\/image2.jpg\"><\/div><div class=\"MovePnly themepark-block_layout_ba lazyload swiper-move-lazy\" style=\"background-repeat:no-repeat;background-size:cover;background-position:center;\" data-background=\"https:\/\/www.slewbearingtec.com\/wp-content\/uploads\/2026\/01\/image2.jpg\"><\/div><\/div><\/section>\n<\/div>\n\n\n\n<div class=\"wp-block-column\" style=\"flex-basis:10px\"><\/div>\n\n\n\n<div class=\"wp-block-column\" style=\"flex-basis:50%\">\n<section class=\"wp-block-themepark-block-themepark-area block_layout thempark-block undefined  newproduct-hover\" id=\"maxw\" style=\"\" data-swiper-parallax=\"-700\"><div class=\"block_layout_in\" style=\"\">\n<div class=\"wp-block-column block_layout_in\">\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading has-text-align-center has-monte-white-color has-text-color has-link-color wp-elements-5a202bb6be1386d2831f4153e4385d1d\" style=\"font-size:20px\"><span class=\"ez-toc-section\" id=\"Slewing_Bearing_With_External_Gear\"><\/span><strong>Couronne d'orientation avec engrenage ext\u00e9rieur<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<div class=\"wp-block-themepark-block-themepark-wright content-super-p\" style=\"font-size:13px;line-height:26px;color:#ffffff;padding:10px 10px;\">\n<div class=\"wp-block-column\">\n<p class=\"has-text-align-center has-text-color has-link-color wp-elements-833cf839fa9b37fc8c88a0c705917e2c\" style=\"color:#ececec\">La couronne d'orientation \u00e0 engrenage ext\u00e9rieur et \u00e0 bride int\u00e9rieure int\u00e8gre les avantages de la transmission \u00e0 engrenage ext\u00e9rieur et du montage \u00e0 bride int\u00e9rieure.&nbsp;<\/p>\n<\/div>\n<\/div>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-themepark-block-btn themepark-i-btn-out shadow  productfenleianniu\" style=\"text-align:center;\"><div class=\"themepark-i-btn-out_ins\" style=\"\"><div class=\"themepark-i-btn-out_in\"><div class=\"themepark-i-btn\" style=\"background-color:#ffffff99;color:#333333;font-size:20px;border:solid 1px #ccc;border-radius:20px;padding:3px 42px;\"><a href=\"https:\/\/www.slewbearingtec.com\/fr\/roulement-dorientation-avec-engrenage-exterieur-html\/\" rel=\"noopener noreferrer \">Obtenir un devis<\/a><a class=\"hovers\" data-title=\"Get Quote\" style=\"color:#333333;background-color:#ffffff99;padding:3px 42px;border-radius:20px;\" href=\"https:\/\/www.slewbearingtec.com\/fr\/roulement-dorientation-avec-engrenage-exterieur-html\/\" rel=\"noopener noreferrer\" target=\"_self\"><\/a><\/div><\/div><\/div><\/div>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<\/div>\n<\/div><div class=\"layout_badh\"><div class=\"PcOnly themepark-block_layout_ba lazyload swiper-lazy\" style=\"background-repeat:no-repeat;background-size:cover;background-position:center;\" data-background=\"https:\/\/www.slewbearingtec.com\/wp-content\/uploads\/2026\/01\/image3.jpg\"><\/div><div class=\"MovePnly themepark-block_layout_ba lazyload swiper-move-lazy\" style=\"background-repeat:no-repeat;background-size:cover;background-position:center;\" data-background=\"https:\/\/www.slewbearingtec.com\/wp-content\/uploads\/2026\/01\/image3.jpg\"><\/div><\/div><\/section>\n<\/div>\n<\/div>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-columns\">\n<div class=\"wp-block-column\">\n<section class=\"wp-block-themepark-block-themepark-area block_layout thempark-block undefined  newproduct-hover\" id=\"maxw\" style=\"\" data-swiper-parallax=\"-700\"><div class=\"block_layout_in\" style=\"\">\n<div class=\"wp-block-column block_layout_in\">\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading has-text-align-center has-monte-white-color has-text-color has-link-color wp-elements-e1dbfa8a294371f9c22771cdbfbae243\" style=\"font-size:20px\"><span class=\"ez-toc-section\" id=\"Slewing_Bearing_With_Internal_Gear\"><\/span><strong>Couronne d'orientation avec engrenage interne<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<div class=\"wp-block-themepark-block-themepark-wright content-super-p\" style=\"font-size:13px;line-height:26px;color:#ffffff;padding:10px 10px;\">\n<div class=\"wp-block-column\">\n<p class=\"has-text-align-center has-text-color has-link-color wp-elements-053d8055357e8ef0d864442e003d894a\" style=\"color:#ececec\">La couronne d'orientation \u00e0 denture int\u00e9rieure et \u00e0 bride ext\u00e9rieure se caract\u00e9rise par la combinaison d'une transmission \u00e0 denture int\u00e9rieure.&nbsp;<\/p>\n<\/div>\n<\/div>\n\n\n\n<div style=\"height:22px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-themepark-block-btn themepark-i-btn-out shadow  productfenleianniu\" style=\"text-align:center;\"><div class=\"themepark-i-btn-out_ins\" style=\"\"><div class=\"themepark-i-btn-out_in\"><div class=\"themepark-i-btn\" style=\"background-color:#ffffff99;color:#333333;font-size:20px;border:solid 1px #ccc;border-radius:20px;padding:3px 10px;\"><a href=\"https:\/\/www.slewbearingtec.com\/fr\/roulement-dorientation-avec-engrenage-interieur-html\/\" rel=\"noopener noreferrer \">Obtenir un devis<\/a><a class=\"hovers\" data-title=\"Get Quote\" style=\"color:#333333;background-color:#ffffff99;padding:3px 10px;border-radius:20px;\" href=\"https:\/\/www.slewbearingtec.com\/fr\/roulement-dorientation-avec-engrenage-interieur-html\/\" rel=\"noopener noreferrer\" target=\"_self\"><\/a><\/div><\/div><\/div><\/div>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<\/div>\n<\/div><div class=\"layout_badh\"><div class=\"PcOnly themepark-block_layout_ba lazyload swiper-lazy\" style=\"background-repeat:no-repeat;background-size:cover;background-position:center;\" data-background=\"https:\/\/www.slewbearingtec.com\/wp-content\/uploads\/2026\/01\/image4.jpg\"><\/div><div class=\"MovePnly themepark-block_layout_ba lazyload swiper-move-lazy\" style=\"background-repeat:no-repeat;background-size:cover;background-position:center;\" data-background=\"https:\/\/www.slewbearingtec.com\/wp-content\/uploads\/2026\/01\/image4.jpg\"><\/div><\/div><\/section>\n<\/div>\n\n\n\n<div class=\"wp-block-column\" style=\"flex-basis:10px\"><\/div>\n\n\n\n<div class=\"wp-block-column\">\n<section class=\"wp-block-themepark-block-themepark-area block_layout thempark-block undefined  newproduct-hover\" id=\"maxw\" style=\"\" data-swiper-parallax=\"-700\"><div class=\"block_layout_in\" style=\"\">\n<div class=\"wp-block-column block_layout_in\">\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading has-text-align-center has-monte-white-color has-text-color has-link-color wp-elements-fd69d5fc93db46dd81dc3f203f3ac3d5\" style=\"font-size:20px\"><span class=\"ez-toc-section\" id=\"Slewing_Bearing_Without_Gear\"><\/span><strong>Couronne d'orientation sans engrenage<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<div class=\"wp-block-themepark-block-themepark-wright content-super-p\" style=\"font-size:13px;line-height:26px;color:#ffffff;padding:10px 10px;\">\n<div class=\"wp-block-column\">\n<p class=\"has-text-align-center has-text-color has-link-color wp-elements-ebe75f30cc602902ee8d103b28a02085\" style=\"color:#ececec\">La couronne d'orientation \u00e0 double bride sans engrenage est l\u00e9g\u00e8re et compacte.&nbsp;<\/p>\n<\/div>\n<\/div>\n\n\n\n<div style=\"height:22px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-themepark-block-btn themepark-i-btn-out shadow  productfenleianniu\" style=\"text-align:center;\"><div class=\"themepark-i-btn-out_ins\" style=\"\"><div class=\"themepark-i-btn-out_in\"><div class=\"themepark-i-btn\" style=\"background-color:#ffffff99;color:#333333;font-size:20px;border:solid 1px #ccc;border-radius:20px;padding:3px 10px;\"><a href=\"https:\/\/www.slewbearingtec.com\/fr\/palier-dorientation-sans-engrenage-html\/\" rel=\"noopener noreferrer \">Obtenir un devis<\/a><a class=\"hovers\" data-title=\"Get Quote\" style=\"color:#333333;background-color:#ffffff99;padding:3px 10px;border-radius:20px;\" href=\"https:\/\/www.slewbearingtec.com\/fr\/palier-dorientation-sans-engrenage-html\/\" rel=\"noopener noreferrer\" target=\"_self\"><\/a><\/div><\/div><\/div><\/div>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<\/div>\n<\/div><div class=\"layout_badh\"><div class=\"PcOnly themepark-block_layout_ba lazyload swiper-lazy\" style=\"background-repeat:no-repeat;background-size:cover;background-position:center;\" data-background=\"https:\/\/www.slewbearingtec.com\/wp-content\/uploads\/2026\/01\/image5.jpg\"><\/div><div class=\"MovePnly themepark-block_layout_ba lazyload swiper-move-lazy\" style=\"background-repeat:no-repeat;background-size:cover;background-position:center;\" data-background=\"https:\/\/www.slewbearingtec.com\/wp-content\/uploads\/2026\/01\/image5.jpg\"><\/div><\/div><\/section>\n<\/div>\n\n\n\n<div class=\"wp-block-column\" style=\"flex-basis:10px\"><\/div>\n\n\n\n<div class=\"wp-block-column\" style=\"flex-basis:50%\">\n<section class=\"wp-block-themepark-block-themepark-area block_layout thempark-block undefined  newproduct-hover\" id=\"maxw\" style=\"\" data-swiper-parallax=\"-700\"><div class=\"block_layout_in\" style=\"\">\n<div class=\"wp-block-column block_layout_in\">\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading has-text-align-center has-monte-white-color has-text-color has-link-color wp-elements-86cc1441f279dd4ab0c24f28d592a00b\" style=\"font-size:20px\"><span class=\"ez-toc-section\" id=\"Cross_Roller_Slewing_Bearing\"><\/span><strong>Couronne d'orientation \u00e0 rouleaux crois\u00e9s<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<div class=\"wp-block-themepark-block-themepark-wright content-super-p\" style=\"font-size:13px;line-height:26px;color:#ffffff;padding:10px 10px;\">\n<div class=\"wp-block-column\">\n<p class=\"has-text-align-center has-text-color has-link-color wp-elements-4ad0d76060e9d847ece2735fddc577d7\" style=\"color:#ececec\">La couronne d'orientation \u00e0 une rang\u00e9e de rouleaux crois\u00e9s adopte une disposition en croix des rouleaux, une grande surface de contact, peut supporter de mani\u00e8re synchronis\u00e9e et efficace les charges axiales et radiales et le moment de renversement,<\/p>\n<\/div>\n<\/div>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-themepark-block-btn themepark-i-btn-out shadow  productfenleianniu\" style=\"text-align:center;\"><div class=\"themepark-i-btn-out_ins\" style=\"\"><div class=\"themepark-i-btn-out_in\"><div class=\"themepark-i-btn\" style=\"background-color:#ffffff99;color:#333333;font-size:20px;border:solid 1px #ccc;border-radius:20px;padding:3px 42px;\"><a href=\"https:\/\/www.slewbearingtec.com\/fr\/roulements-a-rouleaux-croises-html\/\" rel=\"noopener noreferrer \">Obtenir un devis<\/a><a class=\"hovers\" data-title=\"Get Quote\" style=\"color:#333333;background-color:#ffffff99;padding:3px 42px;border-radius:20px;\" href=\"https:\/\/www.slewbearingtec.com\/fr\/roulements-a-rouleaux-croises-html\/\" rel=\"noopener noreferrer\" target=\"_self\"><\/a><\/div><\/div><\/div><\/div>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<\/div>\n<\/div><div class=\"layout_badh\"><div class=\"PcOnly themepark-block_layout_ba lazyload swiper-lazy\" style=\"background-repeat:no-repeat;background-size:cover;background-position:center;\" data-background=\"https:\/\/www.slewbearingtec.com\/wp-content\/uploads\/2026\/01\/image6.jpg\"><\/div><div class=\"MovePnly themepark-block_layout_ba lazyload swiper-move-lazy\" style=\"background-repeat:no-repeat;background-size:cover;background-position:center;\" data-background=\"https:\/\/www.slewbearingtec.com\/wp-content\/uploads\/2026\/01\/image6.jpg\"><\/div><\/div><\/section>\n<\/div>\n<\/div>\n\n\n\n<style>\n\/* ==============================\n   1. \u5bb9\u5668\u57fa\u7840\u8bbe\u7f6e\n   ============================== *\/\n.newproduct-hover {\n    position: relative !important;\n    overflow: hidden !important;\n    padding: 0 !important;\n    border: none !important;\n    height: 100% !important;\n 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\u6539\u7528\u4e3b\u984c\u8272\u7684\u67d4\u548c\u5149\u6688\/\u6a21\u7cca\u5c64\uff08\u53d6\u4ee3\u539f\u672c\u7684\u767d\u8272 0.35\uff09 *\/\n    10px 10px 20px color-mix(in srgb, var(--wp--preset--color--themecolor-1) 25%, transparent),\n    \n    \/* \u6574\u9ad4\u9670\u5f71\u4e5f\u5e36\u4e00\u9ede\u4e3b\u984c\u8272\u8abf\uff08\u53d6\u4ee3\u7d14\u9ed1\uff09 *\/\n    0 10px 24px color-mix(in srgb, var(--wp--preset--color--themecolor-1) 12%, rgba(0,0,0,0.10));\n  \n  transform: translateY(-3px);\n}\n\n.product-hover:hover .themepark-i-btn {\n  background-color: var(--wp--preset--color--themecolor-1) !important;\n  color: #ffffff !important;\n  transition: all 0.3s ease;\n}\n\n.product-hover:hover .hovers {\n  background-color: var(--wp--preset--color--themecolor-1) !important;\n  color: #ffffff !important;\n}\n<\/style>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Step_2_Reverse_Torque_%E2%80%9CShake%E2%80%9D_Bearing\"><\/span>\u00c9tape 2 : Inversion du couple de serrage du palier \"Shake<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Si le point de r\u00e9f\u00e9rence est bon, la dynamique de la charge doit \u00eatre compl\u00e8tement invers\u00e9e. Pour mesurer l'usure totale, il faut faire passer la voiture d'une \"tendance vers l'avant\" \u00e0 une \"tendance vers l'arri\u00e8re\".<\/p>\n\n\n\n<p>Soulever des objets lourds : Comme indiqu\u00e9 pr\u00e9c\u00e9demment, soulevez un contrepoids d'essai calibr\u00e9, qui tirera le grand bras vers le bas et utilisera le principe du levier pour soulever le fond de la voiture.<\/p>\n\n\n\n<p>Guindage variable : Ou bien, allonger directement le grand bras au rayon minimum (angle d'\u00e9l\u00e9vation \u00e9lev\u00e9) et d\u00e9placer le centre de gravit\u00e9 vers l'arri\u00e8re.<\/p>\n\n\n\n<p>Ce processus de conversion fera \"osciller\" le roulement. Au fur et \u00e0 mesure que l'\u00e9quilibre se modifie, vous verrez la structure sup\u00e9rieure se soulever \u00e0 l'arri\u00e8re (l\u00e0 o\u00f9 vous placez la montre).<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Interpreting_Deflection_Data\"><\/span>Interpr\u00e9tation des donn\u00e9es de d\u00e9flexion<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>J'ai obtenu la lecture sur la table, et l'exp\u00e9rience la plus \u00e9prouvante ne faisait que commencer.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Maximum_Allowable_Wear_Chart\"><\/span>Tableau d'usure maximale admissible<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Ne vous attendez pas \u00e0 ce qu'une \"ligne de passage\" universelle s'applique \u00e0 toutes les grues. Vous devrez consulter le tableau du fabricant pour votre machine particuli\u00e8re. Ce tableau tient compte d'un trop grand nombre de variables : le mod\u00e8le sp\u00e9cifique de la grue, le diam\u00e8tre de la bille ou du rouleau et la valeur du jeu de la conception d'origine.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Hazardous_Area_20mm_To_30mm\"><\/span>Zone dangereuse : 2,0 mm \u00e0 3,0 mm<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Bien que les sp\u00e9cifications soient diff\u00e9rentes, il existe une r\u00e8gle non \u00e9crite dans l'industrie : si la d\u00e9flexion totale d\u00e9passe 2,0 mm \u00e0 3,0 mm, c'est un feu rouge.<\/p>\n\n\n\n<p>&lt;1,5 mm : g\u00e9n\u00e9ralement dans la plage de fonctionnement autoris\u00e9e par le fabricant, il peut \u00eatre utilis\u00e9.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote\">\n<p>2,0 mm-3,0 mm : Ce niveau de d\u00e9placement est synonyme de fatigue structurelle grave. \u00c0 ce moment-l\u00e0, on estime que la couche de durcissement superficielle du chemin de roulement s'est effondr\u00e9e et que la vitesse d'usure s'acc\u00e9l\u00e8re de mani\u00e8re exponentielle.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"471\" src=\"https:\/\/www.slewbearingtec.com\/wp-content\/uploads\/2026\/01\/image-27-1024x471.jpg\" alt=\"Analyse des donn\u00e9es d&#039;essais de secousses pour les roulements d&#039;orientation de grues.\" class=\"wp-image-4960\" srcset=\"https:\/\/www.slewbearingtec.com\/wp-content\/uploads\/2026\/01\/image-27-1024x471.jpg 1024w, https:\/\/www.slewbearingtec.com\/wp-content\/uploads\/2026\/01\/image-27-300x138.jpg 300w, https:\/\/www.slewbearingtec.com\/wp-content\/uploads\/2026\/01\/image-27-768x353.jpg 768w, https:\/\/www.slewbearingtec.com\/wp-content\/uploads\/2026\/01\/image-27-18x8.jpg 18w, https:\/\/www.slewbearingtec.com\/wp-content\/uploads\/2026\/01\/image-27.jpg 1166w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Why_Replace_Now\"><\/span>Pourquoi remplacer maintenant ?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Si les r\u00e9sultats de votre test d'oscillation d\u00e9passent la norme, il n'y a qu'un seul plan d'action : changer le roulement imm\u00e9diatement, il n'y a pas de discussion.<\/p>\n\n\n\n<p>Dans ce secteur, ignorer un \u00e9cart de plus de 3,0 mm est un pari. Pour les grues, la d\u00e9faillance n'est pas synonyme de temps d'arr\u00eat, mais d'\"arr\u00eat de la plaque tournante\", c'est-\u00e0-dire la s\u00e9paration directe du chariot rotatif et du ch\u00e2ssis. La mise en \u0153uvre rigoureuse de ce processus de test - mesurer le d\u00e9placement sous des moments oppos\u00e9s - est votre seule ligne de d\u00e9fense pour l'int\u00e9grit\u00e9 structurelle de votre \u00e9quipement et la s\u00e9curit\u00e9 de votre site de travail.<\/p>\n\n\n\n<p><strong>Auteur<\/strong>\uff1a<strong>David Miller<\/strong><\/p>\n\n\n\n<p>Je suis un sp\u00e9cialiste de l'inspection des \u00e9quipements lourds avec plus de 15 ans d'exp\u00e9rience sur le terrain. Je me concentre sur l'int\u00e9grit\u00e9 structurelle des grues, en me sp\u00e9cialisant dans les domaines suivants&nbsp;<strong>essais de basculement des roulements d'orientation<\/strong>&nbsp;et l'analyse de l'usure. J'esp\u00e8re aider les op\u00e9rateurs \u00e0 mesurer avec pr\u00e9cision le d\u00e9placement axial et \u00e0 interpr\u00e9ter les donn\u00e9es de diagnostic afin de pr\u00e9venir les d\u00e9faillances catastrophiques des 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