{"id":160,"date":"2025-10-31T00:25:51","date_gmt":"2025-10-31T00:25:51","guid":{"rendered":"https:\/\/vibromera.eu\/glossary\/magnetic-pull\/"},"modified":"2026-07-03T09:54:32","modified_gmt":"2026-07-03T09:54:32","slug":"magnetic-pull","status":"publish","type":"glossary","link":"https:\/\/vibromera.eu\/pt\/glossary\/magnetic-pull\/","title":{"rendered":"O que \u00e9 atra\u00e7\u00e3o magn\u00e9tica? For\u00e7a magn\u00e9tica desequilibrada em motores."},"content":{"rendered":"<h1>Compreender a atra\u00e7\u00e3o magn\u00e9tica em motores el\u00e9tricos<\/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\/pt\/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\/pt\/product\/balanset-1\/\" title=\"Equilibrador port\u00e1til e analisador de vibra\u00e7\u00f5es 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 completo de balanceador port\u00e1til e analisador de vibra\u00e7\u00f5es\" 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\/pt\/product-category\/devices\/\" rel=\"tag\">Dispositivos<\/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\/pt\/product\/balanset-1\/\" title=\"Equilibrador port\u00e1til e analisador de vibra\u00e7\u00f5es Balanset-1A\">Equilibrador port\u00e1til e analisador de vibra\u00e7\u00f5es 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> + IVA (se aplic\u00e1vel)<\/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=\"\/pt\/wp-json\/wp\/v2\/glossary\/160?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=\"Adicionar\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adicionar\" 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=\"\/pt\/wp-json\/wp\/v2\/glossary\/160?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=\"Adiciona ao carrinho: \u201cPortable balancer &amp; Vibration analyzer Balanset-1A\u201d\" rel=\"nofollow\" data-success_message=\"\u201cPortable balancer &amp; Vibration analyzer Balanset-1A\u201d foi adicionado ao seu carrinho\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adicionar<\/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\/pt\/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\/pt\/product\/vibration-sensor\/\" title=\"Sensor de vibra\u00e7\u00e3o\">\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=\"Grande plano do sensor de vibra\u00e7\u00e3o 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\/pt\/product-category\/parts\/\" rel=\"tag\">Pe\u00e7as<\/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\/pt\/product\/vibration-sensor\/\" title=\"Sensor de vibra\u00e7\u00e3o\">Sensor de vibra\u00e7\u00e3o<\/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> + IVA (se aplic\u00e1vel)<\/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=\"\/pt\/wp-json\/wp\/v2\/glossary\/160?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=\"Adicionar\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adicionar\" 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=\"\/pt\/wp-json\/wp\/v2\/glossary\/160?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=\"Adiciona ao carrinho: \u201cVibration sensor\u201d\" rel=\"nofollow\" data-success_message=\"\u201cVibration sensor\u201d foi adicionado ao seu carrinho\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adicionar<\/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\/pt\/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\/pt\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Sensor \u00f3tico (tac\u00f3metro 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=\"Sensor \u00f3tico (tac\u00f3metro 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\/pt\/product-category\/parts\/\" rel=\"tag\">Pe\u00e7as<\/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\/pt\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Sensor \u00f3tico (tac\u00f3metro laser)\">Sensor \u00f3tico (tac\u00f3metro 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> + IVA (se aplic\u00e1vel)<\/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=\"\/pt\/wp-json\/wp\/v2\/glossary\/160?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=\"Adicionar\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adicionar\" 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=\"\/pt\/wp-json\/wp\/v2\/glossary\/160?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=\"Adiciona ao carrinho: \u201cOptical Sensor (Laser Tachometer)\u201d\" rel=\"nofollow\" data-success_message=\"\u201cOptical Sensor (Laser Tachometer)\u201d foi adicionado ao seu carrinho\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adicionar<\/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\/pt\/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\/pt\/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 de balanceamento de rotor Vibromera: estojo de transporte, condicionador de sinal multicanal, analisador port\u00e1til, base magn\u00e9tica, sensores de vibra\u00e7\u00e3o e cabos espiralados.\" 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\/pt\/product-category\/devices\/\" rel=\"tag\">Dispositivos<\/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\/pt\/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> + IVA (se aplic\u00e1vel)<\/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=\"\/pt\/wp-json\/wp\/v2\/glossary\/160?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=\"Adicionar\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adicionar\" 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=\"\/pt\/wp-json\/wp\/v2\/glossary\/160?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=\"Adiciona ao carrinho: \u201cBalanset-4\u201d\" rel=\"nofollow\" data-success_message=\"\u201cBalanset-4\u201d foi adicionado ao seu carrinho\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adicionar<\/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\/pt\/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\/pt\/product\/magnet-stand\/\" title=\"Suporte magn\u00e9tico 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\u00e9tica.\" 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\/pt\/product-category\/parts\/\" rel=\"tag\">Pe\u00e7as<\/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\/pt\/product\/magnet-stand\/\" title=\"Suporte magn\u00e9tico Insize-60-kgf\">Suporte magn\u00e9tico Insize-60-kgf<\/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>46.00<\/span> + IVA (se aplic\u00e1vel)<\/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=\"\/pt\/wp-json\/wp\/v2\/glossary\/160?add-to-cart=1852\" data-quantity=\"1\" data-product_id=\"1852\" data-product_sku=\"MS-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Adicionar\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adicionar\" 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=\"\/pt\/wp-json\/wp\/v2\/glossary\/160?add-to-cart=1852\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1852\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1852\" data-product_sku=\"MS-1\" aria-label=\"Adiciona ao carrinho: \u201cMagnetic Stand Insize-60-kgf\u201d\" rel=\"nofollow\" data-success_message=\"\u201cMagnetic Stand Insize-60-kgf\u201d foi adicionado ao seu carrinho\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adicionar<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1852\" 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\/pt\/product\/reflective-tape\/\" 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\/pt\/product\/reflective-tape\/\" title=\"Fita refletora\">\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\/05\/s-l1600-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Fita refletora\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-16x12.webp 16w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-460x306.webp 460w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-272x182.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\/pt\/product-category\/parts\/\" rel=\"tag\">Pe\u00e7as<\/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\/pt\/product\/reflective-tape\/\" title=\"Fita refletora\">Fita refletora<\/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>10.00<\/span> + IVA (se aplic\u00e1vel)<\/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=\"\/pt\/wp-json\/wp\/v2\/glossary\/160?add-to-cart=2329\" data-quantity=\"1\" data-product_id=\"2329\" data-product_sku=\"rt-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Adicionar\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adicionar\" 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=\"\/pt\/wp-json\/wp\/v2\/glossary\/160?add-to-cart=2329\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_2329\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"2329\" data-product_sku=\"rt-1\" aria-label=\"Adiciona ao carrinho: \u201cReflective tape\u201d\" rel=\"nofollow\" data-success_message=\"\u201cReflective tape\u201d foi adicionado ao seu carrinho\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adicionar<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_2329\" 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\/pt\/product\/dynamic-balancer-balanset-1a\/\" 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\/pt\/product\/dynamic-balancer-balanset-1a\/\" title=\"Balanceador din\u00e2mico &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=\"Conte\u00fado do kit Balanset-1A com unidade de interface, sensores, tac\u00f3metro e acess\u00f3rios\" 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, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-1024x683.webp 1024w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-768x512.webp 768w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-1536x1024.webp 1536w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-2048x1366.webp 2048w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-e1732998877834.webp 708w\" 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\/pt\/product-category\/devices\/\" rel=\"tag\">Dispositivos<\/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\/pt\/product\/dynamic-balancer-balanset-1a\/\" title=\"Balanceador din\u00e2mico &quot;Balanset-1A&quot; OEM\">Balanceador din\u00e2mico \"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> + IVA (se aplic\u00e1vel)<\/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=\"\/pt\/wp-json\/wp\/v2\/glossary\/160?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=\"Adicionar\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adicionar\" 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=\"\/pt\/wp-json\/wp\/v2\/glossary\/160?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=\"Adiciona ao carrinho: \u201cDynamic balancer \u201cBalanset-1A\u201d OEM\u201d\" rel=\"nofollow\" data-success_message=\"\u201cDynamic balancer \u201cBalanset-1A\u201d OEM\u201d foi adicionado ao seu carrinho\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adicionar<\/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>atra\u00e7\u00e3o magn\u00e9tica<\/strong> \u2014 tamb\u00e9m conhecida como atra\u00e7\u00e3o magn\u00e9tica desequilibrada, ou UMP \u2014 \u00e9 uma for\u00e7a eletromagn\u00e9tica radial l\u00edquida que se desenvolve em motores el\u00e9tricos e geradores quando o <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/air-gap\/\">entreferro<\/a> entre o rotor e o estator n\u00e3o \u00e9 uniforme. Quando o rotor fica descentrado no furo do estator, a abertura estreita-se de um lado e alarga-se do outro. Como a atra\u00e7\u00e3o magn\u00e9tica varia inversamente com o quadrado da abertura, a for\u00e7a no lado da abertura mais estreita \u00e9 muito mais forte, produzindo uma tra\u00e7\u00e3o l\u00edquida que arrasta o rotor para esse lado. O resultado \u00e9 um acoplamento entre as for\u00e7as mec\u00e2nicas <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/eccentricity\/\">excentricidade<\/a> e uma for\u00e7a eletromagn\u00e9tica que, se n\u00e3o for controlada, pode alimentar-se a si pr\u00f3pria.<\/p>\n<p>A atra\u00e7\u00e3o magn\u00e9tica gera tipicamente <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/vibration\/\">vibra\u00e7\u00e3o<\/a> em frequ\u00eancias relacionadas com a rede \u2014 mais caracteristicamente ao dobro da frequ\u00eancia el\u00e9trica da rede (120 Hz em alimenta\u00e7\u00f5es de 60 Hz, 100 Hz em alimenta\u00e7\u00f5es de 50 Hz) quando a excentricidade \u00e9 est\u00e1tica \u2014 pode defletir significativamente o rotor, acelera <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/bearing-wear\/\">desgaste dos rolamentos<\/a>, e, em casos graves, resulta num contacto catastr\u00f3fico entre o rotor e o estator. Compreender este fen\u00f3meno \u00e9 fundamental para o diagn\u00f3stico <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/motor-defects\/\">falhas do motor<\/a> corretamente.<\/p>\n<h2>1. Mecanismo f\u00edsico<\/h2>\n<h3>Espa\u00e7o de ar uniforme (condi\u00e7\u00f5es normais)<\/h3>\n<ul>\n<li>Rotor centrado no furo do estator.<\/li>\n<li>Espa\u00e7o de ar uniforme em toda a circunfer\u00eancia (normalmente 0,3\u20131,5 mm).<\/li>\n<li>As for\u00e7as magn\u00e9ticas em lados opostos equilibram-se e anulam-se.<\/li>\n<li>For\u00e7a radial resultante \u2248 zero.<\/li>\n<li>Vibra\u00e7\u00e3o eletromagn\u00e9tica m\u00ednima.<\/li>\n<\/ul>\n<h3>Folga de ar exc\u00eantrica (condi\u00e7\u00e3o UMP)<\/h3>\n<p>Quando o rotor funciona descentrado:<\/p>\n<ol>\n<li><strong>Assimetria de lacunas:<\/strong> um dos lados estreita-se (por exemplo, 0,5 mm), enquanto o lado oposto alarga-se (por exemplo, 1,0 mm).<\/li>\n<li><strong>Lei do inverso do quadrado:<\/strong> A for\u00e7a magn\u00e9tica \u00e9 proporcional a 1\/gap\u00b2, pelo que a for\u00e7a exercida no lado mais estreito \u00e9 muito maior.<\/li>\n<li><strong>For\u00e7a l\u00edquida:<\/strong> As for\u00e7as desequilibradas j\u00e1 n\u00e3o se anulam, resultando numa for\u00e7a l\u00edquida que puxa para o lado do intervalo mais estreito.<\/li>\n<li><strong>Magnitude:<\/strong> pode atingir centenas ou milhares de libras, mesmo em motores de tamanho m\u00e9dio.<\/li>\n<li><strong>Dire\u00e7\u00e3o:<\/strong> sempre para o lado onde a folga \u00e9 menor.<\/li>\n<\/ol>\n<h3>Por que o dobro da frequ\u00eancia da rede el\u00e9trica?<\/h3>\n<p>Uma componente forte a 2\u00d7 da frequ\u00eancia da rede \u00e9 a assinatura cl\u00e1ssica da UMP causada por uma excentricidade fixa (est\u00e1tica):<\/p>\n<ul>\n<li>Uma alimenta\u00e7\u00e3o trif\u00e1sica equilibrada produz um campo magn\u00e9tico rotativo de magnitude essencialmente constante \u2014 o pr\u00f3prio campo n\u00e3o pulsa simplesmente.<\/li>\n<li>No entanto, a for\u00e7a magn\u00e9tica radial (Maxwell) em qualquer ponto fixo do estator \u00e9 proporcional ao quadrado da densidade de fluxo local (B\u00b2); como a densidade de fluxo nesse ponto alterna \u00e0 frequ\u00eancia da rede, a for\u00e7a radial local pulsa a 2\u00d7 a frequ\u00eancia da rede.<\/li>\n<li>Com uma folga uniforme, essas pulsa\u00e7\u00f5es de for\u00e7a s\u00e3o sim\u00e9tricas em torno do furo e anulam-se em grande parte; uma excentricidade est\u00e1tica quebra a simetria, deixando uma for\u00e7a pulsante l\u00edquida \u2014 e vibra\u00e7\u00e3o \u2014 a 2\u00d7f.<\/li>\n<li>motor de 60 Hz \u2192 vibra\u00e7\u00e3o de 120 Hz; motor de 50 Hz \u2192 vibra\u00e7\u00e3o de 100 Hz.<\/li>\n<li>A excentricidade din\u00e2mica (a folga estreita a rodar com o veio) comporta-se de forma diferente: aparece principalmente a 1\u00d7 da velocidade de rota\u00e7\u00e3o com <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/pole-pass-frequency\/\">frequ\u00eancia de passagem polar<\/a> bandas laterais em vez de um pico limpo em 2\u00d7f.<\/li>\n<\/ul>\n<p>Nenhum pico isolado \u00e9 prova por si s\u00f3. A satura\u00e7\u00e3o magn\u00e9tica, o ranhurado do estator e o desequil\u00edbrio da tens\u00e3o de alimenta\u00e7\u00e3o tamb\u00e9m podem elevar componentes relacionadas com a rede, pelo que um pico elevado em 2\u00d7f deve ser confirmado com verifica\u00e7\u00f5es de corrente, carga\/sem carga e entreferro antes de declarar UMP.<\/p>\n<p>Isto coloca a UMP firmemente no grupo das <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/electrical-faults\/\">defeitos el\u00e9tricos<\/a>, distinguindo-se de fontes puramente mec\u00e2nicas, mesmo quando o sintoma \u2014 um pico 2\u00d7 acentuado \u2014 parece semelhante \u00e0 primeira vista.<\/p>\n<h2>2. Causas da atra\u00e7\u00e3o magn\u00e9tica desequilibrada<\/h2>\n<h3>Desgaste do rolamento<\/h3>\n<ul>\n<li>A causa mais comum do desenvolvimento da UMP.<\/li>\n<li>A folga do rolamento permite que o rotor gire descentrado.<\/li>\n<li>A gravidade puxa o rotor para baixo, reduzindo a folga de ar inferior.<\/li>\n<li>O UMP descentra ent\u00e3o ainda mais o rotor.<\/li>\n<li>Retroalimenta\u00e7\u00e3o positiva: o UMP acelera precisamente o desgaste dos rolamentos que o provocou.<\/li>\n<\/ul>\n<h3>Toler\u00e2ncias de fabrico<\/h3>\n<ul>\n<li><strong>Excentricidade do rotor:<\/strong> o rotor n\u00e3o \u00e9 perfeitamente redondo ou n\u00e3o est\u00e1 centrado no eixo.<\/li>\n<li><strong>Excentricidade do furo do estator:<\/strong> furo n\u00e3o conc\u00eantrico em rela\u00e7\u00e3o \u00e0s superf\u00edcies de montagem.<\/li>\n<li><strong>Erros de montagem:<\/strong> tampas de extremidade desalinhadas ou o rotor inclinado durante a montagem.<\/li>\n<li><strong>Acumula\u00e7\u00e3o de toler\u00e2ncias:<\/strong> uma acumula\u00e7\u00e3o de pequenos erros que, no seu conjunto, resultam numa excentricidade mensur\u00e1vel.<\/li>\n<\/ul>\n<h3>Causas operacionais<\/h3>\n<ul>\n<li><strong>Crescimento t\u00e9rmico:<\/strong> expans\u00e3o diferencial que prejudica a uniformidade da folga.<\/li>\n<li><strong>Distor\u00e7\u00e3o da carca\u00e7a:<\/strong> <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/soft-foot\/\">pata mole<\/a> ou a tens\u00e3o de montagem a deformar a carca\u00e7a.<\/li>\n<li><strong>Deforma\u00e7\u00e3o do eixo:<\/strong> for\u00e7as de carga ou de acoplamento que provocam a flex\u00e3o do eixo.<\/li>\n<li><strong>Quest\u00f5es relacionadas com a funda\u00e7\u00e3o:<\/strong> assentamento ou deteriora\u00e7\u00e3o que provoque uma altera\u00e7\u00e3o na posi\u00e7\u00e3o do motor.<\/li>\n<\/ul>\n<h2>3. Efeitos e consequ\u00eancias<\/h2>\n<h3>Efeitos diretos<\/h3>\n<ul>\n<li><strong>For\u00e7a radial no rotor:<\/strong> uma atra\u00e7\u00e3o cont\u00ednua para um dos lados.<\/li>\n<li><strong>Sobrecarga do rolamento:<\/strong> um rolamento suporta a carga magn\u00e9tica adicional.<\/li>\n<li><strong>Vibra\u00e7\u00e3o a 2\u00d7f:<\/strong> uma componente eletromagn\u00e9tica elevada.<\/li>\n<li><strong>Deforma\u00e7\u00e3o do eixo:<\/strong> A for\u00e7a magn\u00e9tica deforma o eixo, agravando a excentricidade.<\/li>\n<\/ul>\n<h3>Mecanismo de falha progressiva<\/h3>\n<p>A UMP pode desencadear um ciclo de falhas que se autoalimenta:<\/p>\n<ol>\n<li>Excentricidade inicial (devido ao desgaste dos rolamentos ou \u00e0 fabrica\u00e7\u00e3o).<\/li>\n<li>A atra\u00e7\u00e3o magn\u00e9tica atua na dire\u00e7\u00e3o do lado com a abertura mais estreita.<\/li>\n<li>A for\u00e7a desvia ainda mais o rotor, estreitando ainda mais a abertura.<\/li>\n<li>Quanto menor for a abertura, maior ser\u00e1 a for\u00e7a de tra\u00e7\u00e3o.<\/li>\n<li>O desgaste do rolamento acelera no lado submetido a carga.<\/li>\n<li>A excentricidade e a tra\u00e7\u00e3o continuam a aumentar.<\/li>\n<li>Contato eventual entre rotor e estator e falha catastr\u00f3fica<\/li>\n<\/ol>\n<h3>Danos colaterais<\/h3>\n<ul>\n<li>Falha acelerada do rolamento devido a carga assim\u00e9trica<\/li>\n<li>Poss\u00edvel <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/rotor-rub\/\">atrito entre o rotor e o estator<\/a> danificando ambos os componentes.<\/li>\n<li>Deforma\u00e7\u00e3o do eixo ou uma deforma\u00e7\u00e3o permanente <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/shaft-bow\/\">arco<\/a>.<\/li>\n<li>Danos no enrolamento do estator causados por impactos do rotor.<\/li>\n<li>Perda de efici\u00eancia devido a uma folga de ar n\u00e3o ideal.<\/li>\n<\/ul>\n<h2>4. Detec\u00e7\u00e3o e diagn\u00f3stico<\/h2>\n<h3>Assinatura de vibra\u00e7\u00e3o<\/h3>\n<ul>\n<li><strong>Indicador principal:<\/strong> frequ\u00eancia de rede ao dobro elevada (120 Hz ou 100 Hz).<\/li>\n<li><strong>Padr\u00e3o t\u00edpico:<\/strong> a amplitude de 2\u00d7f excede 30\u201350% da amplitude de 1\u00d7 <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/running-speed\/\">velocidade de funcionamento<\/a> vibra\u00e7\u00e3o.<\/li>\n<li><strong>Confirma\u00e7\u00e3o:<\/strong> A componente 2\u00d7f n\u00e3o \u00e9 proporcional ao desequil\u00edbrio mec\u00e2nico.<\/li>\n<li><strong>Independ\u00eancia da carga:<\/strong> A amplitude 2\u00d7f mant\u00e9m-se relativamente constante com a carga, ao contr\u00e1rio das fontes mec\u00e2nicas.<\/li>\n<\/ul>\n<p>Para interpretar corretamente estes picos, \u00e9 necess\u00e1rio, em primeiro lugar, um eixo de frequ\u00eancia preciso. Uma imagem n\u00edtida <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/spectrum\/\">espetro<\/a>, resolvido com um <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/fft\/\">FFT<\/a> e ancorado \u00e0 velocidade de rota\u00e7\u00e3o, \u00e9 o que permite distinguir um 2\u00d7 <em>linha<\/em>-pico de frequ\u00eancia de um 2\u00d7 <em>em funcionamento<\/em>-pico da velocidade de rota\u00e7\u00e3o \u2014 a distin\u00e7\u00e3o mais importante neste diagn\u00f3stico.<\/p>\n<h3>Distinguir a UMP de outras fontes 2\u00d7<\/h3>\n<table border=\"1\" style=\"width:100%; border-collapse:collapse;\">\n<tr>\n<th>Fonte<\/th>\n<th>Caracter\u00edsticas<\/th>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/vibromera.eu\/pt\/glossary\/misalignment\/\">Desalinhamento<\/a><\/td>\n<td>2\u00d7 velocidade de rota\u00e7\u00e3o (n\u00e3o 2\u00d7 a frequ\u00eancia da linha); alta vibra\u00e7\u00e3o axial<\/td>\n<\/tr>\n<tr>\n<td>atra\u00e7\u00e3o magn\u00e9tica<\/td>\n<td>2\u00d7 frequ\u00eancia da linha (120\/100 Hz); origem eletromagn\u00e9tica<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/vibromera.eu\/pt\/glossary\/stator-defects\/\">Falhas no estator<\/a><\/td>\n<td>2\u00d7 frequ\u00eancia da linha; desequil\u00edbrio de corrente presente<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/vibromera.eu\/pt\/glossary\/frame-resonance\/\">Resson\u00e2ncia da estrutura<\/a><\/td>\n<td>O dobro da frequ\u00eancia da rede; a vibra\u00e7\u00e3o da estrutura excede em muito a vibra\u00e7\u00e3o dos rolamentos<\/td>\n<\/tr>\n<\/table>\n<h3>Exames diagn\u00f3sticos adicionais<\/h3>\n<h4>Medi\u00e7\u00e3o da folga de ar<\/h4>\n<ul>\n<li>Me\u00e7a a folga em v\u00e1rios pontos ao longo da circunfer\u00eancia (\u00e9 necess\u00e1rio desmontar o motor).<\/li>\n<li>Uma excentricidade superior a 10 % da folga m\u00e9dia indica um problema.<\/li>\n<li>Registe os valores m\u00ednimo e m\u00e1ximo da folga.<\/li>\n<\/ul>\n<h4>An\u00e1lise de corrente<\/h4>\n<ul>\n<li>Verifique se as correntes de fase est\u00e3o equilibradas.<\/li>\n<li>Um desequil\u00edbrio de corrente pode acompanhar a UMP.<\/li>\n<li>O espetro de corrente apresenta uma componente \u00e0 frequ\u00eancia de linha 2\u00d7.<\/li>\n<\/ul>\n<h4>Ensaio sem carga<\/h4>\n<ul>\n<li>Fa\u00e7a funcionar o motor desacoplado e sem carga.<\/li>\n<li>Se a vibra\u00e7\u00e3o 2\u00d7f se mantiver elevada, a causa \u00e9 de natureza eletromagn\u00e9tica (UMP ou uma avaria no estator).<\/li>\n<li>Se houver uma queda acentuada, a causa \u00e9 um desalinhamento mec\u00e2nico.<\/li>\n<\/ul>\n<p>Este teste sem carga \u00e9 a verifica\u00e7\u00e3o de campo decisiva: permite distinguir claramente uma causa eletromagn\u00e9tica de uma causa mec\u00e2nica e deve ser realizado antes de qualquer desmontagem invasiva. A <a href=\"https:\/\/vibromera.eu\/pt\/calculators\/motor-electrical-frequencies\/\">calculadora da frequ\u00eancia de avarias el\u00e9tricas em motores<\/a> ajuda a determinar com exatid\u00e3o onde a frequ\u00eancia 2\u00d7f e os componentes relacionados devem situar-se para uma determinada frequ\u00eancia de alimenta\u00e7\u00e3o e n\u00famero de p\u00f3los.<\/p>\n<h2>5. Quantifica\u00e7\u00e3o da for\u00e7a de atra\u00e7\u00e3o magn\u00e9tica<\/h2>\n<h3>Rela\u00e7\u00e3o aproximada<\/h3>\n<p>A for\u00e7a UMP pode ser estimada a partir de uma simples rela\u00e7\u00e3o de proporcionalidade:<\/p>\n<blockquote><p><strong>F \u221d (excentricidade \/ folga) \u00d7 pot\u00eancia do motor.<\/strong> A for\u00e7a aumenta de forma aproximadamente linear com a excentricidade, cresce acentuadamente \u00e0 medida que a folga diminui e aumenta proporcionalmente ao tamanho do motor.<\/p><\/blockquote>\n<h3>Magnitudes t\u00edpicas<\/h3>\n<ul>\n<li><strong>Motor de 10 HP, excentricidade 10%:<\/strong> ~50-100 lbf.<\/li>\n<li><strong>Motor de 100 HP, excentricidade 20%:<\/strong> ~500-1,000 lbf.<\/li>\n<li><strong>Motor de 1000 HP, excentricidade 30%:<\/strong> ~5.000-10.000 lbf.<\/li>\n<li><strong>Impacto:<\/strong> For\u00e7as desta magnitude exercem uma carga elevada sobre os rolamentos e podem provocar uma deforma\u00e7\u00e3o vis\u00edvel nos eixos.<\/li>\n<\/ul>\n<h2>6. M\u00e9todos de corre\u00e7\u00e3o<\/h2>\n<h3>Para excentricidade causada pelos rolamentos<\/h3>\n<ul>\n<li>Substitua os rolamentos desgastados para restaurar o alinhamento correto do rotor.<\/li>\n<li>Se a excentricidade voltar a ocorrer, utilize rolamentos com toler\u00e2ncias mais apertadas.<\/li>\n<li>Verifique se a sele\u00e7\u00e3o dos rolamentos \u00e9 adequada para as cargas do motor, incluindo o UMP.<\/li>\n<li>Verifique o assentamento do rolamento no eixo e nas extremidades da carca\u00e7a.<\/li>\n<\/ul>\n<h3>Devido a uma excentricidade de fabrico<\/h3>\n<ul>\n<li><strong>Menor (&lt; 10%):<\/strong> aceitar e verificar se a vibra\u00e7\u00e3o \u00e9 aceit\u00e1vel.<\/li>\n<li><strong>Moderado (10-25%):<\/strong> Considere a possibilidade de reperfurar o estator ou maquinar o rotor.<\/li>\n<li><strong>Grave (&gt; 25 %):<\/strong> substitui\u00e7\u00e3o do motor ou repara\u00e7\u00e3o de grande envergadura.<\/li>\n<li><strong>Garantia:<\/strong> A excentricidade de fabrica\u00e7\u00e3o pode ser motivo para reclama\u00e7\u00e3o de garantia em motores novos.<\/li>\n<\/ul>\n<h3>Para quest\u00f5es relacionadas com a montagem e a instala\u00e7\u00e3o<\/h3>\n<ul>\n<li>Verifique o alinhamento da tampa de extremidade e o bin\u00e1rio dos parafusos.<\/li>\n<li>Corrigir qualquer <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/soft-foot\/\">p\u00e9 mole<\/a> condi\u00e7\u00e3o.<\/li>\n<li>Certifique-se de que a estrutura n\u00e3o fica deformada devido \u00e0 tens\u00e3o de montagem.<\/li>\n<li>Verifique se h\u00e1 tens\u00e3o na tubula\u00e7\u00e3o ou for\u00e7as de acoplamento que estejam puxando o motor para fora da posi\u00e7\u00e3o.<\/li>\n<\/ul>\n<h2>7. Estrat\u00e9gias de preven\u00e7\u00e3o<\/h2>\n<h3>Conce\u00e7\u00e3o e sele\u00e7\u00e3o<\/h3>\n<ul>\n<li>Especifique toler\u00e2ncias reduzidas para a folga de ar em aplica\u00e7\u00f5es cr\u00edticas.<\/li>\n<li>Escolha motores de qualidade de fabricantes de renome.<\/li>\n<li>Espa\u00e7os de ar maiores reduzem a magnitude da UMP (com alguma perda de efici\u00eancia).<\/li>\n<li>Considere projetos de rolamentos magn\u00e9ticos para aplica\u00e7\u00f5es extremas.<\/li>\n<\/ul>\n<h3>Instala\u00e7\u00e3o<\/h3>\n<ul>\n<li>Alinhe cuidadosamente durante a instala\u00e7\u00e3o.<\/li>\n<li>Elimine o p\u00e9 mole antes de fixar definitivamente com parafusos.<\/li>\n<li>Verifique a posi\u00e7\u00e3o axial do rotor e a folga.<\/li>\n<li>Certifique-se de que as tampas de extremidade est\u00e3o devidamente alinhadas e apertadas com o bin\u00e1rio adequado.<\/li>\n<\/ul>\n<h3>Manuten\u00e7\u00e3o<\/h3>\n<ul>\n<li>Substitua os rolamentos antes que o desgaste se torne excessivo.<\/li>\n<li>Acompanhe a evolu\u00e7\u00e3o da vibra\u00e7\u00e3o de 2\u00d7 a frequ\u00eancia da rede ao longo do tempo.<\/li>\n<li>Verificar <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/equilibrio-2\/\">equil\u00edbrio<\/a> e alinhamento periodicamente.<\/li>\n<li>Mantenha o motor limpo para evitar obstru\u00e7\u00f5es no sistema de refrigera\u00e7\u00e3o e a deforma\u00e7\u00e3o t\u00e9rmica que estas provocam.<\/li>\n<\/ul>\n<h2>8. Considera\u00e7\u00f5es especiais<\/h2>\n<h3>Grandes motores<\/h3>\n<ul>\n<li>As for\u00e7as UMP podem ser enormes \u2014 toneladas de for\u00e7a.<\/li>\n<li>A sele\u00e7\u00e3o dos rolamentos deve ter em conta as cargas UMP.<\/li>\n<li>Os c\u00e1lculos da deflex\u00e3o do eixo devem incluir o UMP.<\/li>\n<li>A monitoriza\u00e7\u00e3o da folga de ar pode ser integrada em motores cr\u00edticos de grande porte.<\/li>\n<\/ul>\n<h3>Motores de alta velocidade<\/h3>\n<ul>\n<li><a href=\"https:\/\/vibromera.eu\/pt\/glossary\/centrifugal-force\/\">For\u00e7as centr\u00edfugas<\/a> combinar com o UMP.<\/li>\n<li>Risco de instabilidade se o UMP for demasiado grande.<\/li>\n<li>As toler\u00e2ncias apertadas na folga de ar s\u00e3o fundamentais.<\/li>\n<\/ul>\n<h3>Motores verticais<\/h3>\n<ul>\n<li>A gravidade n\u00e3o mant\u00e9m o rotor centrado, como acontece nos motores horizontais.<\/li>\n<li>O UMP pode puxar o rotor para qualquer um dos lados.<\/li>\n<li>O <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/thrust-bearing\/\">rolamento de impulso<\/a> deve suportar o peso do rotor, bem como qualquer componente axial do UMP.<\/li>\n<\/ul>\n<h2>9. Rela\u00e7\u00e3o com outros problemas motores<\/h2>\n<h3>UMP e excentricidade do rotor<\/h3>\n<ul>\n<li><a href=\"https:\/\/vibromera.eu\/pt\/glossary\/rotor-eccentricity\/\">Excentricidade<\/a> causa UMP.<\/li>\n<li>A UMP pode agravar a excentricidade (retroalimenta\u00e7\u00e3o positiva).<\/li>\n<li>Ambos produzem vibra\u00e7\u00e3o, mas em frequ\u00eancias diferentes (1\u00d7 versus 2\u00d7f).<\/li>\n<\/ul>\n<h3>UMP e avarias no estator<\/h3>\n<ul>\n<li>Ambos produzem uma vibra\u00e7\u00e3o com frequ\u00eancia dupla da frequ\u00eancia da rede.<\/li>\n<li>As falhas no estator revelam, al\u00e9m disso, um desequil\u00edbrio de corrente.<\/li>\n<li>A UMP resulta de uma excentricidade sem desequil\u00edbrio de corrente.<\/li>\n<li>Ambos podem coexistir \u2014 uma avaria no estator e a excentricidade em simult\u00e2neo.<\/li>\n<\/ul>\n<h3>UMP e vida \u00fatil do rolamento<\/h3>\n<ul>\n<li>O UMP acrescenta-se \u00e0s cargas radiais dos rolamentos.<\/li>\n<li>Isso reduz a vida \u00fatil do rolamento (vida \u00fatil \u221d 1\/(carga\u00b3)).<\/li>\n<li>Isso provoca um desgaste assim\u00e9trico dos rolamentos.<\/li>\n<li>Um rolamento pode avariar prematuramente, enquanto o outro continua em bom estado.<\/li>\n<\/ul>\n<h2>10. P\u00f4r tudo em pr\u00e1tica no terreno<\/h2>\n<p>A atra\u00e7\u00e3o magn\u00e9tica constitui uma importante liga\u00e7\u00e3o entre os mundos mec\u00e2nico e eletromagn\u00e9tico no interior de um motor. Reconhecer a UMP como fonte de vibra\u00e7\u00e3o de 2\u00d7 a frequ\u00eancia da rede, compreender a sua rela\u00e7\u00e3o com a excentricidade do entreferro e avaliar a sua capacidade de provocar uma avaria progressiva atrav\u00e9s da sobrecarga dos rolamentos s\u00e3o os fatores que permitem um diagn\u00f3stico correto. Na pr\u00e1tica, o fluxo de trabalho \u00e9 simples: analise a tend\u00eancia da componente 2\u00d7f, execute o teste sem carga para confirmar uma origem eletromagn\u00e9tica e exclua as causas mec\u00e2nicas semelhantes. Um analisador port\u00e1til de dois canais, como o <a href=\"https:\/\/vibromera.eu\/pt\/produto\/balanset-1\/\">Balanset-1A<\/a> capta o <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/amplitude\/\">amplitude<\/a> e <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/phase\/\">fase<\/a> dos componentes de velocidade de funcionamento e de dupla frequ\u00eancia de linha no motor montado \u00e0 velocidade de funcionamento, ajudando o engenheiro a distinguir um UMP genu\u00edno de um problema mec\u00e2nico de 1\u00d7 <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/unbalance\/\">desequil\u00edbrio<\/a> que simplesmente precisa <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/equilibrio-de-campos\/\">equilibragem no local<\/a> \u2014 e, assim, abordar a verdadeira causa, em vez de tratar apenas um sintoma.<\/p>\n<hr>\n<p><a href=\"https:\/\/vibromera.eu\/pt\/glossary\/\">\u2190 Voltar ao \u00edndice principal<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Aprenda sobre a for\u00e7a magn\u00e9tica desequilibrada (UMP), for\u00e7as eletromagn\u00e9ticas radiais em motores causadas pela excentricidade do entreferro, que provocam vibra\u00e7\u00e3o com frequ\u00eancia duas vezes maior que a da rede el\u00e9trica e deflex\u00e3o do rotor.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[109,111],"tags":[],"class_list":["post-160","glossary","type-glossary","status-publish","hentry","category-glossary","category-rotor-balancing"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/pt\/wp-json\/wp\/v2\/glossary\/160","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/pt\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/vibromera.eu\/pt\/wp-json\/wp\/v2\/types\/glossary"}],"version-history":[{"count":2,"href":"https:\/\/vibromera.eu\/pt\/wp-json\/wp\/v2\/glossary\/160\/revisions"}],"predecessor-version":[{"id":102157,"href":"https:\/\/vibromera.eu\/pt\/wp-json\/wp\/v2\/glossary\/160\/revisions\/102157"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/pt\/wp-json\/wp\/v2\/media?parent=160"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/pt\/wp-json\/wp\/v2\/categories?post=160"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/pt\/wp-json\/wp\/v2\/tags?post=160"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}