{"id":291,"date":"2025-10-31T00:25:51","date_gmt":"2025-10-31T00:25:51","guid":{"rendered":"https:\/\/vibromera.eu\/glossary\/unbalance\/"},"modified":"2026-05-23T22:32:21","modified_gmt":"2026-05-23T22:32:21","slug":"unbalance","status":"publish","type":"glossary","link":"https:\/\/vibromera.eu\/fr\/glossary\/unbalance\/","title":{"rendered":"Qu&#039;est-ce que le balourd ?"},"content":{"rendered":"<h1>Comprendre le balourd dans les machines tournantes<\/h1>\n\t\t<section class=\"woocommerce hestia-shop products is-shortcode\" id=\"products\" data-sorder=\"hestia_shop\" >\n\t\t\t\t\t\t<div class=\"\">\n\t\t\t\t\t\t<div class=\"hestia-shop-content\">\n\t\t\t<div class=\"row\" data-aos=\"fade-up\" >\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/fr\/product\/balanset-1\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/fr\/product\/balanset-1\/\" title=\"\u00c9quilibreuse portable et analyseur de vibrations Balanset-1A\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Balanset-1A kit complet \u00e9quilibreur portable et analyseur de vibrations\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-18x12.webp 18w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-272x182.webp 272w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/fr\/product-category\/devices\/\" rel=\"tag\">Dispositifs<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/fr\/product\/balanset-1\/\" title=\"\u00c9quilibreuse portable et analyseur de vibrations Balanset-1A\">\u00c9quilibreur portable et analyseur de vibrations Balanset-1A<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>1,975.00<\/span> + TVA (le cas \u00e9ch\u00e9ant)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/fr\/wp-json\/wp\/v2\/glossary\/291?add-to-cart=986\" data-quantity=\"1\" data-product_id=\"986\" data-product_sku=\"BS-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Ajouter au panier\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Ajouter au panier\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/fr\/wp-json\/wp\/v2\/glossary\/291?add-to-cart=986\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_986\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"986\" data-product_sku=\"BS-1\" aria-label=\"Ajouter au panier\u00a0: \u201cPortable balancer &amp; Vibration analyzer Balanset-1A\u201d\" rel=\"nofollow\" data-success_message=\"\u00ab\u00a0Portable balancer &amp; Vibration analyzer Balanset-1A\u00a0\u00bb a \u00e9t\u00e9 ajout\u00e9 \u00e0 votre panier\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Ajouter au panier<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_986\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/fr\/product\/vibration-sensor\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/fr\/product\/vibration-sensor\/\" title=\"Capteur de vibrations\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Gros plan du capteur de vibrations Balanset-1A\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-768x512.webp 768w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-1024x682.webp 1024w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3.webp 1280w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/fr\/product-category\/parts\/\" rel=\"tag\">Pi\u00e8ces d\u00e9tach\u00e9es<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/fr\/product\/vibration-sensor\/\" title=\"Capteur de vibrations\">Capteur de vibrations<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>90.00<\/span> + TVA (le cas \u00e9ch\u00e9ant)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/fr\/wp-json\/wp\/v2\/glossary\/291?add-to-cart=1820\" data-quantity=\"1\" data-product_id=\"1820\" data-product_sku=\"VS-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Ajouter au panier\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Ajouter au panier\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/fr\/wp-json\/wp\/v2\/glossary\/291?add-to-cart=1820\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1820\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1820\" data-product_sku=\"VS-1\" aria-label=\"Ajouter au panier\u00a0: \u201cVibration sensor\u201d\" rel=\"nofollow\" data-success_message=\"\u00ab\u00a0Vibration sensor\u00a0\u00bb a \u00e9t\u00e9 ajout\u00e9 \u00e0 votre panier\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Ajouter au panier<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1820\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/fr\/product\/optical-sensor-for-balanset-and-arbalance\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/fr\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Capteur optique (tachym\u00e8tre laser)\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Capteur optique (tachym\u00e8tre laser)\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-1024x682.webp 1024w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-768x512.webp 768w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-1536x1023.webp 1536w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-18x12.webp 18w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-460x306.webp 460w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU.webp 1600w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/fr\/product-category\/parts\/\" rel=\"tag\">Pi\u00e8ces d\u00e9tach\u00e9es<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/fr\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Capteur optique (tachym\u00e8tre laser)\">Capteur optique (tachym\u00e8tre laser)<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>124.00<\/span> + TVA (le cas \u00e9ch\u00e9ant)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/fr\/wp-json\/wp\/v2\/glossary\/291?add-to-cart=1832\" data-quantity=\"1\" data-product_id=\"1832\" data-product_sku=\"Tach-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Ajouter au panier\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Ajouter au panier\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/fr\/wp-json\/wp\/v2\/glossary\/291?add-to-cart=1832\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1832\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1832\" data-product_sku=\"Tach-1\" aria-label=\"Ajouter au panier\u00a0: \u201cOptical Sensor (Laser Tachometer)\u201d\" rel=\"nofollow\" data-success_message=\"\u00ab\u00a0Optical Sensor (Laser Tachometer)\u00a0\u00bb a \u00e9t\u00e9 ajout\u00e9 \u00e0 votre panier\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Ajouter au panier<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1832\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/fr\/product\/balanset-4\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/fr\/product\/balanset-4\/\" title=\"Balanset-4\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Kit d&#039;\u00e9quilibrage de rotor Vibromera\u00a0: mallette de transport, conditionneur de signal multicanal, analyseur portable, base magn\u00e9tique, capteurs de vibrations et c\u00e2bles enroul\u00e9s.\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-18x12.webp 18w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-460x306.webp 460w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4.webp 640w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/fr\/product-category\/devices\/\" rel=\"tag\">Dispositifs<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/fr\/product\/balanset-4\/\" title=\"Balanset-4\">Balanset-4<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>6,803.00<\/span> + TVA (le cas \u00e9ch\u00e9ant)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/fr\/wp-json\/wp\/v2\/glossary\/291?add-to-cart=1833\" data-quantity=\"1\" data-product_id=\"1833\" data-product_sku=\"BS-4\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Ajouter au panier\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Ajouter au panier\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/fr\/wp-json\/wp\/v2\/glossary\/291?add-to-cart=1833\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1833\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1833\" data-product_sku=\"BS-4\" aria-label=\"Ajouter au panier\u00a0: \u201cBalanset-4\u201d\" rel=\"nofollow\" data-success_message=\"\u00ab\u00a0Balanset-4\u00a0\u00bb a \u00e9t\u00e9 ajout\u00e9 \u00e0 votre panier\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Ajouter au panier<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1833\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div><!-- \/.row --><div class=\"row\">\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/fr\/product\/magnet-stand\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/fr\/product\/magnet-stand\/\" title=\"Support magn\u00e9tique Insize - 60 kgf\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Base magn\u00e9tique.\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-1024x682.webp 1024w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-768x512.webp 768w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36.webp 1280w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/fr\/product-category\/parts\/\" rel=\"tag\">Pi\u00e8ces 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title=\"\u00c9quilibreur dynamique &quot;Balanset-1A&quot; OEM\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Kit Balanset-1A comprenant l&#039;unit\u00e9 d&#039;interface, les capteurs, le tachym\u00e8tre et les accessoires\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-300x200.webp 300w, 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100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/fr\/product-category\/devices\/\" rel=\"tag\">Dispositifs<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/fr\/product\/dynamic-balancer-balanset-1a\/\" title=\"\u00c9quilibreur dynamique &quot;Balanset-1A&quot; OEM\">\u00c9quilibreur dynamique \"Balanset-1A\" OEM<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>1,735.00<\/span> + TVA (le cas \u00e9ch\u00e9ant)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/fr\/wp-json\/wp\/v2\/glossary\/291?add-to-cart=4193\" data-quantity=\"1\" data-product_id=\"4193\" data-product_sku=\"BS-1OEM\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Ajouter au panier\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Ajouter au panier\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/fr\/wp-json\/wp\/v2\/glossary\/291?add-to-cart=4193\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_4193\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"4193\" data-product_sku=\"BS-1OEM\" aria-label=\"Ajouter au panier\u00a0: \u201cDynamic balancer \u201cBalanset-1A\u201d OEM\u201d\" rel=\"nofollow\" data-success_message=\"\u00ab\u00a0Dynamic balancer \u201cBalanset-1A\u201d OEM\u00a0\u00bb a \u00e9t\u00e9 ajout\u00e9 \u00e0 votre panier\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Ajouter au panier<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_4193\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/section>\n\t\t\n<p><strong>D\u00e9s\u00e9quilibre<\/strong> (utilis\u00e9 de mani\u00e8re interchangeable avec <a href=\"https:\/\/vibromera.eu\/fr\/glossary\/imbalance\/\">d\u00e9s\u00e9quilibre<\/a>) est la condition dans un <a href=\"https:\/\/vibromera.eu\/fr\/glossary\/rotor\/\">rotor<\/a> lorsque le centre de masse ne se trouve pas sur l&#x27;axe de rotation. Ce d\u00e9calage \u2014 le <a href=\"https:\/\/vibromera.eu\/fr\/glossary\/eccentricity\/\">excentricit\u00e9<\/a> \u2014 signifie que la masse est r\u00e9partie de mani\u00e8re in\u00e9gale autour de l&#x27;arbre. Lorsque le rotor tourne, la masse d\u00e9centr\u00e9e est projet\u00e9e vers l&#x27;ext\u00e9rieur par <a href=\"https:\/\/vibromera.eu\/fr\/glossary\/centrifugal-force\/\">force centrifuge<\/a>, ce qui g\u00e9n\u00e8re une charge rotative qui fait vibrer les roulements et l&#x27;ensemble de la machine. Le balourd est, de loin, la cause la plus fr\u00e9quente de <a href=\"https:\/\/vibromera.eu\/fr\/glossary\/vibration\/\">Vibrations<\/a> dans les \u00e9quipements rotatifs, et c&#x27;est cette d\u00e9faillance qui <a href=\"https:\/\/vibromera.eu\/fr\/glossary\/equilibrage\/\">\u00e9quilibrage<\/a> est l\u00e0 pour corriger.<\/p>\n<h2>1. D\u00e9finition et principes physiques sous-jacents<\/h2>\n<p>Sur le plan quantitatif, le balourd <em>U<\/em> est le produit de la masse d\u00e9cal\u00e9e et de son rayon par rapport \u00e0 l&#x27;axe \u2014 un point de masse concentr\u00e9e <em>m<\/em> assis au rayon <em>r<\/em> donne U = m\u00b7r, exprim\u00e9 en <strong>grammes-millim\u00e8tres (g\u00b7mm)<\/strong> ou en grammes-pouces. On peut \u00e9galement l&#x27;exprimer en multipliant la masse totale du rotor par l&#x27;excentricit\u00e9 de son centre de gravit\u00e9 (U = M\u00b7e). Ce qui importe d&#x27;un point de vue m\u00e9canique, c&#x27;est la force ainsi g\u00e9n\u00e9r\u00e9e. La force centrifuge cro\u00eet proportionnellement au carr\u00e9 de la vitesse angulaire :<\/p>\n<blockquote><p>F = m \u00b7 r \u00b7 \u03c9\u00b2  \u2014 doublez la vitesse et la force perturbatrice <em>quadruple<\/em>.<\/p><\/blockquote>\n<p>C&#x27;est cette relation quadratique qui explique pourquoi un rotor qui tourne sans \u00e0-coups \u00e0 la main peut vibrer violemment \u00e0 vitesse de fonctionnement, et pourquoi les machines \u00e0 grande vitesse doivent \u00eatre \u00e9quilibr\u00e9es avec bien plus de pr\u00e9cision que celles \u00e0 faible vitesse. La force tourne avec l&#x27;arbre, ce qui fait qu&#x27;elle agit sur la structure une fois par tour \u2014 d&#x27;o\u00f9 la signature caract\u00e9ristique du balourd.<\/p>\n<h2>2. La signature vibratoire classique<\/h2>\n<p>Le balourd est l&#x27;un des d\u00e9fauts les plus faciles \u00e0 diagnostiquer, car ses caract\u00e9ristiques sont tr\u00e8s constantes :<\/p>\n<ul>\n<li><strong>Fr\u00e9quence\u00a0:<\/strong> la vibration appara\u00eet exactement \u00e0 <strong>1 fois la vitesse de rotation<\/strong> (le <a href=\"https:\/\/vibromera.eu\/fr\/glossary\/running-speed\/\">vitesse de fonctionnement<\/a>). Modifiez la vitesse et le pic le suit avec pr\u00e9cision \u2014 une caract\u00e9ristique distinctive qui le diff\u00e9rencie de nombreux autres d\u00e9fauts.<\/li>\n<li><strong>Direction :<\/strong> l&#x27;\u00e9nergie est principalement <a href=\"https:\/\/vibromera.eu\/fr\/glossary\/radial-vibration\/\">radial<\/a> (horizontal et vertical), avec peu de <a href=\"https:\/\/vibromera.eu\/fr\/glossary\/axial-vibration\/\">axiale<\/a> (axiale).<\/li>\n<li><strong>Amplitude :<\/strong> Elle est proportionnelle au carr\u00e9 de la vitesse : doubler le r\u00e9gime multiplie environ par quatre la r\u00e9ponse, comme le pr\u00e9dit la loi physique mentionn\u00e9e plus haut.<\/li>\n<li><strong>Phase :<\/strong> le 1\u00d7 <a href=\"https:\/\/vibromera.eu\/fr\/glossary\/phase\/\">phase<\/a> La mesure est stable et reproductible, ce qui permet justement de localiser et de corriger le point lourd.<\/li>\n<\/ul>\n<p>Cette paire stable d&#x27;amplitude et de phase constitue la base de la correction : conna\u00eetre l&#x27;amplitude de la r\u00e9ponse 1\u00d7 et <em>o\u00f9<\/em> Ces indications permettent \u00e0 un analyste de d\u00e9terminer la taille et l&#x27;angle du contrepoids n\u00e9cessaire. Un pic pur de 1\u00d7 accompagn\u00e9 de faibles vibrations axiales indique un d\u00e9s\u00e9quilibre ; en revanche, une forte composante de 2\u00d7 sugg\u00e8re <a href=\"https:\/\/vibromera.eu\/fr\/glossary\/misalignment\/\">d\u00e9salignement<\/a> ou <a href=\"https:\/\/vibromera.eu\/fr\/glossary\/looseness\/\">rel\u00e2chement<\/a>.<\/p>\n<h2>3. Les trois types de balourd<\/h2>\n<h3>Balourd statique<\/h3>\n<p>\u00c9galement appel\u00e9 \u00ab balourd de force \u00bb, il s&#x27;agit du cas le plus simple : la masse est d\u00e9cal\u00e9e dans un seul plan, comme un point lourd sur un disque mince. On parle alors de <em>statique<\/em> car cela se produit lorsque le rotor est au repos : plac\u00e9 sur des ar\u00eates de couteau sans frottement, le rotor tourne jusqu'\u00e0 ce que le point lourd se stabilise en bas. On corrige ce ph\u00e9nom\u00e8ne en pla\u00e7ant une seule masse \u00e0 180\u00b0 du point lourd, dans la zone de <a href=\"https:\/\/vibromera.eu\/fr\/glossary\/static-balancing\/\">\u00e9quilibrage monoplan<\/a>.<\/p>\n<h3>Balourd de couple<\/h3>\n<p>Ici, deux masses identiques sont situ\u00e9es aux extr\u00e9mit\u00e9s oppos\u00e9es du rotor, \u00e0 180\u00b0 l&#x27;une de l&#x27;autre. Elles s&#x27;annulent en tant que force r\u00e9sultante, mais forment un <a href=\"https:\/\/vibromera.eu\/fr\/glossary\/couple-unbalance\/\">couple<\/a> \u2014 un moment de basculement qui tente de faire pivoter le rotor bout \u00e0 bout. Un rotor pr\u00e9sentant un balourd de couple pur est \u00e9quilibr\u00e9 statiquement (il ne bascule pas sur ses ar\u00eates) mais vibre fortement une fois en rotation. La correction n\u00e9cessite deux masses situ\u00e9es dans deux plans distincts pour contrebalancer ce moment de basculement.<\/p>\n<h3>d\u00e9s\u00e9quilibre dynamique<\/h3>\n<p>Le balourd dynamique, ph\u00e9nom\u00e8ne que l&#x27;on retrouve sur presque toutes les machines r\u00e9elles, r\u00e9sulte de la combinaison de composantes de balourd statique et de composantes de couple. Pour y rem\u00e9dier, il faut modifier la masse dans au moins deux plans le long du rotor \u2014 le processus consistant \u00e0 <a href=\"https:\/\/vibromera.eu\/fr\/glossary\/dynamic-balancing\/\">\u00e9quilibrage dynamique (sur deux plans)<\/a>. Un cas tr\u00e8s similaire, dans lequel les effets statiques et de couple occupent la m\u00eame position angulaire, est appel\u00e9 <a href=\"https:\/\/vibromera.eu\/fr\/glossary\/quasi-static-unbalance\/\">d\u00e9s\u00e9quilibre quasi-statique<\/a>.<\/p>\n<h2>4. Causes courantes du balourd<\/h2>\n<p>Un balourd peut \u00eatre pr\u00e9sent d\u00e8s la fabrication ou appara\u00eetre en cours d&#x27;utilisation. Parmi les causes courantes, on peut citer :<\/p>\n<ul>\n<li><strong>D\u00e9fauts de fabrication :<\/strong> Porosit\u00e9 dans les pi\u00e8ces moul\u00e9es, densit\u00e9 in\u00e9gale du mat\u00e9riau et tol\u00e9rances d&#039;usinage.<\/li>\n<li><strong>Erreurs d'assemblage :<\/strong> des composants mal mont\u00e9s, des boulons mal serr\u00e9s ou des clavettes mal align\u00e9es qui modifient la r\u00e9partition des masses.<\/li>\n<li><strong>Usure et d\u00e9t\u00e9rioration :<\/strong> \u00e9rosion irr\u00e9guli\u00e8re, <a href=\"https:\/\/vibromera.eu\/fr\/glossary\/corrosion\/\">corrosion<\/a> ou <a href=\"https:\/\/vibromera.eu\/fr\/glossary\/wear\/\">l'usure<\/a> sur les pales du ventilateur et la pompe <a href=\"https:\/\/vibromera.eu\/fr\/glossary\/impeller-defects\/\">roues \u00e0 aubes<\/a>.<\/li>\n<li><strong>Accumulation de mat\u00e9riaux :<\/strong> accumulation de salet\u00e9s, de poussi\u00e8re ou de r\u00e9sidus de produit sur les rotors des ventilateurs, des soufflantes et des centrifugeuses.<\/li>\n<li><strong>D\u00e9faillance d&#x27;un composant :<\/strong> Un contrepoids d\u00e9log\u00e9 ou une pale cass\u00e9e provoque instantan\u00e9ment un balourd important.<\/li>\n<\/ul>\n<h2>5. Pourquoi il est essentiel de corriger le balourd<\/h2>\n<p>L&#x27;utilisation d&#x27;une machine pr\u00e9sentant un balourd important l&#x27;endommage progressivement, car la force de rotation exerce une contrainte cyclique sur la structure \u00e0 chaque tour :<\/p>\n<ul>\n<li><strong>D\u00e9faillance pr\u00e9matur\u00e9e des roulements :<\/strong> Les roulements sont soumis \u00e0 des charges dynamiques \u00e9lev\u00e9es et s&#x27;usent rapidement.<\/li>\n<li><strong>Fatigue et fissuration :<\/strong> les contraintes cycliques s&#x27;accumulent <a href=\"https:\/\/vibromera.eu\/fr\/glossary\/fatigue\/\">fatigue<\/a> dommages au niveau de l&#x27;arbre, des fondations et de la structure.<\/li>\n<li><strong>Baisse de rendement :<\/strong> l&#x27;\u00e9nergie est dissip\u00e9e sous forme de vibrations et de chaleur au lieu d&#x27;\u00eatre transform\u00e9e en travail utile.<\/li>\n<li><strong>Risques pour la s\u00e9curit\u00e9 :<\/strong> Un balourd s\u00e9v\u00e8re peut entra\u00eener une d\u00e9faillance catastrophique.<\/li>\n<\/ul>\n<h2>6. Mesure, correction et tol\u00e9rances du balourd<\/h2>\n<p>Le balourd est \u00e9limin\u00e9 gr\u00e2ce \u00e0 une proc\u00e9dure d&#x27;\u00e9quilibrage syst\u00e9matique \u2014 l&#x27;un des moyens les plus rentables d&#x27;am\u00e9liorer la fiabilit\u00e9 des machines. Sur une machine d\u00e9j\u00e0 assembl\u00e9e, cette op\u00e9ration est effectu\u00e9e sur place plut\u00f4t que sur un <a href=\"https:\/\/vibromera.eu\/fr\/glossary\/balancing-machine\/\">machine \u00e0 \u00e9quilibrer<\/a>. Un analyseur portable \u00e0 deux canaux tel que le <a href=\"https:\/\/vibromera.eu\/fr\/produit\/balanset-1\/\">Balanset-1A<\/a> mesure l&#x27;amplitude et la phase de la composante 1\u00d7, calcule la <a href=\"https:\/\/vibromera.eu\/fr\/glossary\/influence-coefficient\/\">coefficients d&#039;influence<\/a> d'un <a href=\"https:\/\/vibromera.eu\/fr\/glossary\/trial-weight\/\">poids d&#039;essai<\/a>, et indique \u00e0 l&#x27;ing\u00e9nieur la masse et l&#x27;angle de la correction n\u00e9cessaire pour une correction \u00e0 un ou deux plans <a href=\"https:\/\/vibromera.eu\/fr\/glossary\/equilibrage-des-champs\/\">\u00e9quilibrage sur place<\/a>. Comme il fonctionne dans les roulements de la machine \u00e0 vitesse de fonctionnement, il refl\u00e8te fid\u00e8lement son \u00e9tat de fonctionnement r\u00e9el.<\/p>\n<p>L&#x27;\u00e9quilibrage ne consiste jamais \u00e0 atteindre z\u00e9ro, mais \u00e0 maintenir le balourd en dessous d&#x27;une limite d\u00e9finie. Cette limite d\u00e9coule de la <a href=\"https:\/\/vibromera.eu\/fr\/glossary\/g-grade\/\">classe de qualit\u00e9 d&#039;\u00e9quilibrage (classe G)<\/a> syst\u00e8me de <strong>ISO 21940-11<\/strong> (qui a remplac\u00e9 la norme ISO 1940-1, bien connue depuis longtemps). La classe d&#x27;\u00e9quilibrage et la vitesse de service se traduisent par une valeur admissible <a href=\"https:\/\/vibromera.eu\/fr\/glossary\/residual-unbalance\/\">balourd r\u00e9siduel<\/a> en g\u00b7mm ; un <a href=\"https:\/\/vibromera.eu\/fr\/calculators\/residual-unbalance-iso1940\/\">Calculateur de d\u00e9s\u00e9quilibre r\u00e9siduel (ISO 21940-11)<\/a> convertit directement la classe d&#x27;\u00e9quilibrage et le r\u00e9gime s\u00e9lectionn\u00e9s en valeur admissible pour chaque plan.<\/p>\n<hr>\n<p><a href=\"https:\/\/vibromera.eu\/fr\/glossary\/\">\u2190 Retour \u00e0 l&#039;index principal<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>D\u00e9couvrez le balourd (d\u00e9s\u00e9quilibre), la cause la plus fr\u00e9quente de vibrations des machines. Comprenez ses types (statique, de couple, dynamique), ses causes et sa signature vibratoire classique (1x tr\/min).<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[109,111],"tags":[],"class_list":["post-291","glossary","type-glossary","status-publish","hentry","category-glossary","category-rotor-balancing"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/fr\/wp-json\/wp\/v2\/glossary\/291","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/fr\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/vibromera.eu\/fr\/wp-json\/wp\/v2\/types\/glossary"}],"version-history":[{"count":1,"href":"https:\/\/vibromera.eu\/fr\/wp-json\/wp\/v2\/glossary\/291\/revisions"}],"predecessor-version":[{"id":101268,"href":"https:\/\/vibromera.eu\/fr\/wp-json\/wp\/v2\/glossary\/291\/revisions\/101268"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/fr\/wp-json\/wp\/v2\/media?parent=291"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/fr\/wp-json\/wp\/v2\/categories?post=291"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/fr\/wp-json\/wp\/v2\/tags?post=291"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}