{"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\/ro\/glossary\/magnetic-pull\/","title":{"rendered":"Ce este atrac\u021bia magnetic\u0103? For\u021ba magnetic\u0103 dezechilibrat\u0103 \u00een motoare"},"content":{"rendered":"<h1>\u00cen\u021belegerea atrac\u021biei magnetice \u00een motoarele electrice<\/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\/ro\/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\/ro\/product\/balanset-1\/\" title=\"Echilibrator portabil \u0219i analizor de vibra\u021bii 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 \u2014 echilibrator portabil \u0219i analizor de vibra\u021bii\" 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\/ro\/product-category\/devices\/\" rel=\"tag\">Dispozitive<\/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\/ro\/product\/balanset-1\/\" title=\"Echilibrator portabil \u0219i analizor de vibra\u021bii Balanset-1A\">Echilibrator portabil \u0219i analizor de vibra\u021bii 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 (dac\u0103 este cazul)<\/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=\"\/ro\/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=\"Adaug\u0103 \u00een co\u0219\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adaug\u0103 \u00een co\u0219\" 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=\"\/ro\/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=\"Adaug\u0103 \u00een co\u0219: &amp;lbquo;Portable balancer &amp; Vibration analyzer Balanset-1A\u201d\" rel=\"nofollow\" data-success_message=\"\u201ePortable balancer &amp; Vibration analyzer Balanset-1A\u201d a fost ad\u0103ugat \u00een co\u0219\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adaug\u0103 \u00een co\u0219<\/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\/ro\/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\/ro\/product\/vibration-sensor\/\" title=\"Senzor de vibra\u021bii\">\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=\"Prim-plan senzor de vibra\u021bii 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\/ro\/product-category\/parts\/\" rel=\"tag\">Piese<\/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\/ro\/product\/vibration-sensor\/\" title=\"Senzor de vibra\u021bii\">Senzor de vibra\u021bii<\/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 (dac\u0103 este cazul)<\/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=\"\/ro\/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=\"Adaug\u0103 \u00een co\u0219\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adaug\u0103 \u00een co\u0219\" 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=\"\/ro\/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=\"Adaug\u0103 \u00een co\u0219: &amp;lbquo;Vibration sensor\u201d\" rel=\"nofollow\" data-success_message=\"\u201eVibration sensor\u201d a fost ad\u0103ugat \u00een co\u0219\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adaug\u0103 \u00een co\u0219<\/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\/ro\/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\/ro\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Senzor optic (tahometru cu 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=\"Senzor optic (tahometru cu 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\/ro\/product-category\/parts\/\" rel=\"tag\">Piese<\/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\/ro\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Senzor optic (tahometru cu laser)\">Senzor optic (tahometru cu 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 (dac\u0103 este cazul)<\/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=\"\/ro\/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=\"Adaug\u0103 \u00een co\u0219\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adaug\u0103 \u00een co\u0219\" 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=\"\/ro\/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=\"Adaug\u0103 \u00een co\u0219: &amp;lbquo;Optical Sensor (Laser Tachometer)\u201d\" rel=\"nofollow\" data-success_message=\"\u201eOptical Sensor (Laser Tachometer)\u201d a fost ad\u0103ugat \u00een co\u0219\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adaug\u0103 \u00een co\u0219<\/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\/ro\/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\/ro\/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 echilibrare a rotorului Vibromera: geant\u0103 de transport, condi\u021bioner de semnal multicanal, analizor portabil, baz\u0103 magnetic\u0103, senzori de vibra\u021bii \u0219i cabluri spiralate.\" 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\/ro\/product-category\/devices\/\" rel=\"tag\">Dispozitive<\/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\/ro\/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 (dac\u0103 este cazul)<\/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=\"\/ro\/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=\"Adaug\u0103 \u00een co\u0219\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adaug\u0103 \u00een co\u0219\" 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=\"\/ro\/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=\"Adaug\u0103 \u00een co\u0219: &amp;lbquo;Balanset-4\u201d\" rel=\"nofollow\" data-success_message=\"\u201eBalanset-4\u201d a fost ad\u0103ugat \u00een co\u0219\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adaug\u0103 \u00een co\u0219<\/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\/ro\/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\/ro\/product\/magnet-stand\/\" title=\"Stand magnetic 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=\"Baza magnetic\u0103.\" 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\/ro\/product-category\/parts\/\" rel=\"tag\">Piese<\/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\/ro\/product\/magnet-stand\/\" title=\"Stand magnetic Insize-60-kgf\">Stand magnetic 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> + TVA (dac\u0103 este cazul)<\/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=\"\/ro\/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=\"Adaug\u0103 \u00een co\u0219\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adaug\u0103 \u00een co\u0219\" 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=\"\/ro\/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=\"Adaug\u0103 \u00een co\u0219: &amp;lbquo;Magnetic Stand Insize-60-kgf\u201d\" rel=\"nofollow\" data-success_message=\"\u201eMagnetic Stand Insize-60-kgf\u201d a fost ad\u0103ugat \u00een co\u0219\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adaug\u0103 \u00een co\u0219<\/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\/ro\/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\/ro\/product\/reflective-tape\/\" title=\"Band\u0103 reflectorizant\u0103\">\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=\"Band\u0103 reflectorizant\u0103\" 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\/ro\/product-category\/parts\/\" rel=\"tag\">Piese<\/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\/ro\/product\/reflective-tape\/\" title=\"Band\u0103 reflectorizant\u0103\">Band\u0103 reflectorizant\u0103<\/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> + TVA (dac\u0103 este cazul)<\/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=\"\/ro\/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=\"Adaug\u0103 \u00een co\u0219\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adaug\u0103 \u00een co\u0219\" 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=\"\/ro\/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=\"Adaug\u0103 \u00een co\u0219: &amp;lbquo;Reflective tape\u201d\" rel=\"nofollow\" data-success_message=\"\u201eReflective tape\u201d a fost ad\u0103ugat \u00een co\u0219\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adaug\u0103 \u00een co\u0219<\/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\/ro\/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\/ro\/product\/dynamic-balancer-balanset-1a\/\" title=\"Echilibrator dinamic &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=\"Con\u021binutul kitului Balanset-1A cu unitate de interfa\u021b\u0103, senzori, tahometru \u0219i accesorii\" 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\/ro\/product-category\/devices\/\" rel=\"tag\">Dispozitive<\/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\/ro\/product\/dynamic-balancer-balanset-1a\/\" title=\"Echilibrator dinamic &quot;Balanset-1A&quot; OEM\">Echilibrator dinamic \"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 (dac\u0103 este cazul)<\/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=\"\/ro\/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=\"Adaug\u0103 \u00een co\u0219\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adaug\u0103 \u00een co\u0219\" 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=\"\/ro\/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=\"Adaug\u0103 \u00een co\u0219: &amp;lbquo;Dynamic balancer \u201cBalanset-1A\u201d OEM\u201d\" rel=\"nofollow\" data-success_message=\"\u201eDynamic balancer \u201cBalanset-1A\u201d OEM\u201d a fost ad\u0103ugat \u00een co\u0219\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adaug\u0103 \u00een co\u0219<\/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>Atrac\u021bie magnetic\u0103<\/strong> \u2014 cunoscut\u0103 \u0219i sub denumirea de for\u021b\u0103 magnetic\u0103 de atrac\u021bie neechilibrat\u0103 (UMP) \u2014 este o for\u021b\u0103 electromagnetic\u0103 radial\u0103 net\u0103 care se manifest\u0103 \u00een motoarele electrice \u0219i generatoare atunci c\u00e2nd <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/air-gap\/\">\u00eentrefier<\/a> distan\u021ba dintre rotor \u0219i stator nu este uniform\u0103. Atunci c\u00e2nd rotorul este descentrat \u00een alezajul statorului, spa\u021biul se \u00eengusteaz\u0103 pe o parte \u0219i se l\u0103rge\u0219te pe cealalt\u0103. Deoarece atrac\u021bia magnetic\u0103 variaz\u0103 invers propor\u021bional cu p\u0103tratul distan\u021bei, for\u021ba exercitat\u0103 pe partea cu spa\u021biu \u00eengust este mult mai puternic\u0103, gener\u00e2nd o for\u021b\u0103 net\u0103 care atrage rotorul spre acea parte. Rezultatul este o cuplare \u00eentre componentele mecanice <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/eccentricity\/\">excentricitate<\/a> \u0219i o for\u021b\u0103 electromagnetic\u0103 care, dac\u0103 nu este \u021binut\u0103 sub control, se poate autoalimenta.<\/p>\n<p>Trac\u021biunea magnetic\u0103 genereaz\u0103 de obicei <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/vibration\/\">vibra\u021bii<\/a> la frecven\u021be legate de re\u021bea \u2014 cel mai caracteristic la de dou\u0103 ori frecven\u021ba re\u021belei electrice (120 Hz la aliment\u0103ri de 60 Hz, 100 Hz la aliment\u0103ri de 50 Hz) atunci c\u00e2nd excentricitatea este static\u0103 \u2014 poate devia semnificativ rotorul, accelereaz\u0103 <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/bearing-wear\/\">uzura rulmen\u021bilor<\/a>, iar \u00een cazurile grave duce la un contact catastrofal \u00eentre rotor \u0219i stator. \u00cen\u021belegerea acestui fenomen este esen\u021bial\u0103 pentru diagnosticare <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/motor-defects\/\">motor faults<\/a> correctly.<\/p>\n<h2>1. Mecanismul fizic<\/h2>\n<h3>Joc de aer uniform (condi\u021bie normal\u0103)<\/h3>\n<ul>\n<li>Rotorul este centrat \u00een orificiul statorului.<\/li>\n<li>Spa\u021biul de aer este uniform pe \u00eentreaga circumferin\u021b\u0103 (de obicei 0,3\u20131,5 mm).<\/li>\n<li>For\u021bele magnetice de pe laturile opuse se echilibreaz\u0103 \u0219i se anuleaz\u0103 reciproc.<\/li>\n<li>For\u021ba radial\u0103 net\u0103 \u2248 zero.<\/li>\n<li>Vibra\u021bii electromagnetice minime.<\/li>\n<\/ul>\n<h3>Joc de aer excentric (condi\u021bie UMP)<\/h3>\n<p>C\u00e2nd rotorul func\u021bioneaz\u0103 descentrat:<\/p>\n<ol>\n<li><strong>Gap asymmetry:<\/strong> o parte se \u00eengusteaz\u0103 (de exemplu, 0,5 mm), \u00een timp ce partea opus\u0103 se l\u0103rge\u0219te (de exemplu, 1,0 mm).<\/li>\n<li><strong>Legea p\u0103tratului invers:<\/strong> for\u021ba magnetic\u0103 \u221d 1\/joc\u00b2, astfel \u00eenc\u00e2t for\u021ba exercitat\u0103 pe latura \u00eengust\u0103 este mult mai mare.<\/li>\n<li><strong>Net force:<\/strong> for\u021bele dezechilibrate nu se mai anuleaz\u0103 reciproc, rezult\u00e2nd o for\u021b\u0103 net\u0103 care ac\u021bioneaz\u0103 spre partea cu spa\u021biul \u00eengust.<\/li>\n<li><strong>Magnitudine:<\/strong> poate ajunge la sute sau chiar mii de livre-for\u021b\u0103, chiar \u0219i \u00een cazul motoarelor de dimensiuni moderate.<\/li>\n<li><strong>Direc\u0163ie:<\/strong> \u00eentotdeauna spre partea cu spa\u021biul cel mai mic.<\/li>\n<\/ol>\n<h3>De ce de dou\u0103 ori frecven\u021ba re\u021belei?<\/h3>\n<p>O component\u0103 puternic\u0103 la 2\u00d7 frecven\u021ba re\u021belei este semn\u0103tura clasic\u0103 a UMP cauzate de o excentricitate fix\u0103 (static\u0103):<\/p>\n<ul>\n<li>O alimentare trifazat\u0103 echilibrat\u0103 produce un c\u00e2mp magnetic rotativ cu amplitudine practic constant\u0103 \u2014 c\u00e2mpul \u00een sine nu pulseaz\u0103 pur \u0219i simplu.<\/li>\n<li>However, the radial magnetic (Maxwell) force at any fixed point on the stator is proportional to the local flux density squared (B\u00b2); because the flux density at that point alternates at line frequency, the local radial force pulsates at 2\u00d7 line frequency.<\/li>\n<li>Cu un \u00eentrefier uniform, aceste pulsa\u021bii de for\u021b\u0103 sunt simetrice \u00een jurul alezajului \u0219i \u00een mare parte se anuleaz\u0103; o excentricitate static\u0103 rupe simetria, l\u0103s\u00e2nd o for\u021b\u0103 net\u0103 pulsatorie \u2014 \u0219i vibra\u021bii \u2014 la 2\u00d7f.<\/li>\n<li>60 Hz motor \u2192 120 Hz vibration; 50 Hz motor \u2192 100 Hz vibration.<\/li>\n<li>Excentricitatea dinamic\u0103 (\u00eentrefierul \u00eengust care se rote\u0219te odat\u0103 cu arborele) se comport\u0103 diferit: apare \u00een principal la 1\u00d7 viteza de rota\u021bie, cu <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/pole-pass-frequency\/\">frecven\u021b\u0103 de trecere a polilor<\/a> benzi laterale, mai degrab\u0103 dec\u00e2t ca un v\u00e2rf curat la 2\u00d7f.<\/li>\n<\/ul>\n<p>Niciun v\u00e2rf singular nu constituie singur o dovad\u0103. Satura\u021bia magnetic\u0103, crestarea statorului \u0219i dezechilibrul tensiunii de alimentare pot de asemenea cre\u0219te componentele legate de re\u021bea, astfel c\u0103 un v\u00e2rf ridicat la 2\u00d7f trebuie confirmat prin verific\u0103ri de curent, \u00een sarcin\u0103\/f\u0103r\u0103 sarcin\u0103 \u0219i ale \u00eentrefierului \u00eenainte de a declara UMP.<\/p>\n<p>Astfel, UMP se \u00eenscrie cu siguran\u021b\u0103 \u00een categoria <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/electrical-faults\/\">defec\u021biuni electrice<\/a>, spre deosebire de sursele pur mecanice, chiar \u0219i atunci c\u00e2nd simptomul \u2014 un v\u00e2rf puternic de tip 2\u00d7 \u2014 pare similar la prima vedere.<\/p>\n<h2>2. Cauzele atrac\u021biei magnetice dezechilibrate<\/h2>\n<h3>Uzura rulmen\u021bilor<\/h3>\n<ul>\n<li>Cea mai frecvent\u0103 cauz\u0103 a apari\u021biei UMP.<\/li>\n<li>Jocul rulmentului permite rotorului s\u0103 se roteasc\u0103 descentrat.<\/li>\n<li>Gravita\u021bia trage rotorul \u00een jos, reduc\u00e2nd spa\u021biul de aer din partea inferioar\u0103.<\/li>\n<li>UMP deplaseaz\u0103 apoi rotorul \u0219i mai mult \u00een afara centrului.<\/li>\n<li>Retroac\u021biune pozitiv\u0103: UMP accelereaz\u0103 tocmai uzura rulmentului care a provocat-o.<\/li>\n<\/ul>\n<h3>Toleran\u021be de fabrica\u021bie<\/h3>\n<ul>\n<li><strong>Excentricitatea rotorului:<\/strong> rotorul nu este perfect rotund sau nu este centrat pe axul s\u0103u.<\/li>\n<li><strong>Excentricitatea alezajului statorului:<\/strong> alezaj neconcentric fa\u021b\u0103 de suprafe\u021bele de montare.<\/li>\n<li><strong>Erori de asamblare:<\/strong> clopotele de cap\u0103t sunt nealiniate sau rotorul este \u00eenclinat \u00een timpul asambl\u0103rii.<\/li>\n<li><strong>Acumularea toleran\u021belor:<\/strong> o acumulare de mici erori care, \u00eensumat\u0103, duce la o excentricitate m\u0103surabil\u0103.<\/li>\n<\/ul>\n<h3>Cauze opera\u021bionale<\/h3>\n<ul>\n<li><strong>Cre\u0219terea termic\u0103:<\/strong> diferen\u021ba de dilatare care afecteaz\u0103 uniformitatea spa\u021biului.<\/li>\n<li><strong>Deformarea cadrului:<\/strong> <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/soft-foot\/\">picior moale<\/a> sau de deformarea cadrului cauzat\u0103 de solicit\u0103ri de montare.<\/li>\n<li><strong>Deformarea arborelui:<\/strong> for\u021bele de sarcin\u0103 sau de cuplare care provoac\u0103 \u00eencovoierea arborelui.<\/li>\n<li><strong>Probleme legate de funda\u021bie:<\/strong> a\u0219ezarea sau deteriorarea care determin\u0103 deplasarea motorului.<\/li>\n<\/ul>\n<h2>3. Efecte \u0219i consecin\u021be<\/h2>\n<h3>Direct effects<\/h3>\n<ul>\n<li><strong>For\u021ba radial\u0103 exercitat\u0103 asupra rotorului:<\/strong> o for\u021b\u0103 continu\u0103 care trage \u00eentr-o parte.<\/li>\n<li><strong>Supra\u00eenc\u0103rcarea rulmentului:<\/strong> un singur rulment suport\u0103 sarcina magnetic\u0103 suplimentar\u0103.<\/li>\n<li><strong>Vibra\u021bii la 2\u00d7f:<\/strong> o component\u0103 electromagnetic\u0103 accentuat\u0103.<\/li>\n<li><strong>Deformarea arborelui:<\/strong> For\u021ba magnetic\u0103 deformeaz\u0103 arborele, agrav\u00e2nd excentricitatea.<\/li>\n<\/ul>\n<h3>Mecanismul de defectare progresiv\u0103<\/h3>\n<p>UMP poate genera un ciclu de defec\u021biuni care se autoalimenteaz\u0103:<\/p>\n<ol>\n<li>Excentricitatea ini\u021bial\u0103 (cauzat\u0103 de uzura rulmentului sau de fabrica\u021bie).<\/li>\n<li>For\u021ba magnetic\u0103 se exercit\u0103 spre partea cu spa\u021biul \u00eengust.<\/li>\n<li>For\u021ba deviaz\u0103 rotorul \u0219i mai mult, reduc\u00e2nd \u0219i mai mult spa\u021biul.<\/li>\n<li>Cu c\u00e2t spa\u021biul este mai mic, cu at\u00e2t for\u021ba de trac\u021biune este mai mare.<\/li>\n<li>Uzura rulmentului se accelereaz\u0103 pe partea solicitat\u0103.<\/li>\n<li>Excentricitatea \u0219i atrac\u021bia continu\u0103 s\u0103 creasc\u0103.<\/li>\n<li>Contact eventual rotor-stator \u0219i defec\u021biune catastrofal\u0103<\/li>\n<\/ol>\n<h3>Daune secundare<\/h3>\n<ul>\n<li>Rupere accelerat\u0103 a rulmentului din cauza \u00eenc\u0103rc\u0103rii asimetrice<\/li>\n<li>Posibil <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/rotor-rub\/\">frecare \u00eentre rotor \u0219i stator<\/a> deterior\u00e2nd ambele componente.<\/li>\n<li>Deformarea arborelui sau o deformare permanent\u0103 <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/shaft-bow\/\">bow<\/a>.<\/li>\n<li>Deteriorarea \u00eenf\u0103\u0219ur\u0103rii statorului cauzat\u0103 de loviturile rotorului.<\/li>\n<li>Pierderea de eficien\u021b\u0103 cauzat\u0103 de un spa\u021biu de aer neoptim.<\/li>\n<\/ul>\n<h2>4. Depistare \u0219i diagnosticare<\/h2>\n<h3>Semn\u0103tura vibra\u021bional\u0103<\/h3>\n<ul>\n<li><strong>Indicator principal:<\/strong> frecven\u021b\u0103 a re\u021belei de dou\u0103 ori mai mare, ridicat\u0103 (120 Hz sau 100 Hz).<\/li>\n<li><strong>Aspect tipic:<\/strong> amplitudinea de 2\u00d7f dep\u0103\u0219e\u0219te 30\u201350% din cea de 1\u00d7 <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/running-speed\/\">viteza de func\u021bionare<\/a> vibra\u021bii.<\/li>\n<li><strong>Confirmare:<\/strong> componenta 2\u00d7f nu este propor\u021bional\u0103 cu dezechilibrul mecanic.<\/li>\n<li><strong>Independen\u021ba de sarcin\u0103:<\/strong> Amplitudinea 2\u00d7f r\u0103m\u00e2ne relativ constant\u0103 \u00een func\u021bie de sarcin\u0103, spre deosebire de sursele mecanice.<\/li>\n<\/ul>\n<p>Pentru a interpreta corect aceste v\u00e2rfuri, este necesar\u0103 mai \u00eent\u00e2i o ax\u0103 a frecven\u021bei precis\u0103. O imagine clar\u0103 <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/spectrum\/\">spectru<\/a>, rezolvat cu un <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/fft\/\">FFT<\/a> \u0219i care este ancorat\u0103 la viteza de rota\u021bie, este ceea ce \u00ee\u021bi permite s\u0103 faci diferen\u021ba \u00eentre un 2\u00d7 <em>linia<\/em>-v\u00e2rful de frecven\u021b\u0103 al unui 2\u00d7 <em>running<\/em>-v\u00e2rful la viteza de rota\u021bie \u2014 cel mai important criteriu de diferen\u021biere \u00een acest diagnostic.<\/p>\n<h3>Diferen\u021bierea UMP de alte surse 2\u00d7<\/h3>\n<table border=\"1\" style=\"width:100%; border-collapse:collapse;\">\n<tr>\n<th>Surs\u0103<\/th>\n<th>Caracteristici<\/th>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/vibromera.eu\/ro\/glossary\/misalignment\/\">Nealiniere<\/a><\/td>\n<td>Vitez\u0103 de func\u021bionare 2\u00d7 (nu 2\u00d7 frecven\u021b\u0103 de linie); vibra\u021bii axiale ridicate<\/td>\n<\/tr>\n<tr>\n<td>Atrac\u021bie magnetic\u0103<\/td>\n<td>2\u00d7 frecven\u021ba liniei (120\/100 Hz); origine electromagnetic\u0103<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/vibromera.eu\/ro\/glossary\/stator-defects\/\">Defec\u021biuni ale statorului<\/a><\/td>\n<td>2\u00d7 frecven\u021ba liniei; dezechilibru de curent prezent<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/vibromera.eu\/ro\/glossary\/frame-resonance\/\">Rezonan\u021ba cadrului<\/a><\/td>\n<td>De dou\u0103 ori frecven\u021ba de re\u021bea; vibra\u021biile carcasei dep\u0103\u0219esc cu mult vibra\u021biile rulmentului<\/td>\n<\/tr>\n<\/table>\n<h3>Teste de diagnostic suplimentare<\/h3>\n<h4>M\u0103surarea spa\u021biului de aer<\/h4>\n<ul>\n<li>M\u0103sura\u021bi distan\u021ba \u00een mai multe puncte de-a lungul circumferin\u021bei (este necesar\u0103 demontarea motorului).<\/li>\n<li>O excentricitate mai mare de 10% din distan\u021ba medie indic\u0103 o problem\u0103.<\/li>\n<li>\u00cenregistra\u021bi valorile minime \u0219i maxime ale distan\u021bei.<\/li>\n<\/ul>\n<h4>Analiza curentului<\/h4>\n<ul>\n<li>Verifica\u021bi dac\u0103 curen\u021bii de faz\u0103 sunt echilibra\u021bi.<\/li>\n<li>UMP poate fi \u00eenso\u021bit\u0103 de un dezechilibru de curent.<\/li>\n<li>Spectrul curentului prezint\u0103 o component\u0103 cu frecven\u021b\u0103 de dou\u0103 ori mai mare dec\u00e2t cea a re\u021belei.<\/li>\n<\/ul>\n<h4>No-load test<\/h4>\n<ul>\n<li>Porni\u021bi motorul decuplat, f\u0103r\u0103 sarcin\u0103.<\/li>\n<li>Dac\u0103 vibra\u021bia de 2\u00d7f r\u0103m\u00e2ne ridicat\u0103, sursa este de natur\u0103 electromagnetic\u0103 (UMP sau o defec\u021biune a statorului).<\/li>\n<li>Dac\u0103 scade brusc, cauza este o nealiniere mecanic\u0103.<\/li>\n<\/ul>\n<p>Acest test f\u0103r\u0103 sarcin\u0103 reprezint\u0103 verificarea decisiv\u0103 pe teren: el permite diferen\u021bierea clar\u0103 \u00eentre o cauz\u0103 electromagnetic\u0103 \u0219i una mecanic\u0103 \u0219i trebuie efectuat \u00eenainte de orice demontare invaziv\u0103. A <a href=\"https:\/\/vibromera.eu\/ro\/calculators\/motor-electrical-frequencies\/\">calculator al frecven\u021bei defectelor electrice ale motorului<\/a> ajut\u0103 la stabilirea cu precizie a pozi\u021biei \u00een care ar trebui s\u0103 se afle 2\u00d7f \u0219i componentele asociate pentru o anumit\u0103 tensiune de alimentare \u0219i un anumit num\u0103r de poli.<\/p>\n<h2>5. Cuantificarea for\u021bei de atrac\u021bie magnetic\u0103<\/h2>\n<h3>Rela\u021bie aproximativ\u0103<\/h3>\n<p>For\u021ba UMP poate fi estimat\u0103 pe baza unei simple rela\u021bii de propor\u021bionalitate:<\/p>\n<blockquote><p><strong>F \u221d (excentricitate \/ \u00eentrefier) \u00d7 puterea motorului.<\/strong> For\u021ba cre\u0219te aproximativ liniar odat\u0103 cu excentricitatea, cre\u0219te brusc pe m\u0103sur\u0103 ce \u00eentrefierul se mic\u0219oreaz\u0103 \u0219i cre\u0219te propor\u021bional cu dimensiunea motorului.<\/p><\/blockquote>\n<h3>M\u0103rimi tipice<\/h3>\n<ul>\n<li><strong>Motor de 10 CP, excentricitate 10%:<\/strong> ~50\u2013100 lbf.<\/li>\n<li><strong>Motor de 100 CP, excentricitate 20%:<\/strong> ~500\u20131.000 lbf.<\/li>\n<li><strong>Motor de 1000 CP, excentricitate 30%:<\/strong> ~5.000\u201310.000 lbf.<\/li>\n<li><strong>Impact:<\/strong> For\u021bele de aceast\u0103 amploare solicit\u0103 puternic rulmen\u021bii \u0219i pot deforma vizibil arborii.<\/li>\n<\/ul>\n<h2>6. Metode de corectare<\/h2>\n<h3>Pentru excentricitatea cauzat\u0103 de rulment<\/h3>\n<ul>\n<li>\u00cenlocui\u021bi rulmen\u021bii uza\u021bi pentru a restabili centrarea corect\u0103 a rotorului<\/li>\n<li>Dac\u0103 excentricitatea persist\u0103, folosi\u021bi rulmen\u021bi cu toleran\u021be mai mici.<\/li>\n<li>Verifica\u021bi dac\u0103 rulmentul ales este adecvat pentru sarcinile motorului, inclusiv pentru UMP.<\/li>\n<li>Verifica\u021bi fixarea rulmentului pe arbore \u0219i \u00een capetele carcasei.<\/li>\n<\/ul>\n<h3>Pentru excentricitatea de fabrica\u021bie<\/h3>\n<ul>\n<li><strong>Minor\u0103 (&lt; 10%):<\/strong> accepta\u021bi \u0219i monitoriza\u021bi dac\u0103 vibra\u021biile sunt acceptabile.<\/li>\n<li><strong>Moderat (10\u201325%):<\/strong> lua\u021bi \u00een considerare rectificarea statorului sau prelucrarea rotorului.<\/li>\n<li><strong>Sever\u0103 (&gt; 25%):<\/strong> \u00eenlocuirea motorului sau repara\u021bii majore.<\/li>\n<li><strong>Garan\u021bie:<\/strong> Excentricitatea de fabrica\u021bie poate face obiectul unei cereri de garan\u021bie pentru motoarele noi<\/li>\n<\/ul>\n<h3>Pentru probleme legate de asamblare \u0219i instalare<\/h3>\n<ul>\n<li>Verifica\u021bi alinierea capacului de cap\u0103t \u0219i cuplul de str\u00e2ngere al \u0219uruburilor.<\/li>\n<li>Correct any <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/soft-foot\/\">soft-foot<\/a> stare.<\/li>\n<li>Asigura\u021bi-v\u0103 c\u0103 cadrul nu este deformat de for\u021bele de montare.<\/li>\n<li>Verifica\u021bi dac\u0103 exist\u0103 tensionare \u00een \u021beav\u0103 sau for\u021be de cuplare care trag motorul din pozi\u021bie<\/li>\n<\/ul>\n<h2>7. Strategii de prevenire<\/h2>\n<h3>Proiectare \u0219i selec\u021bie<\/h3>\n<ul>\n<li>Stabili\u021bi toleran\u021be stricte pentru spa\u021biul de aer \u00een cazul aplica\u021biilor critice.<\/li>\n<li>Alege\u021bi motoare de calitate de la produc\u0103tori renumi\u021bi.<\/li>\n<li>\u00centrefierele mai mari reduc amplitudinea UMP (cu un anumit cost \u00een ceea ce prive\u0219te eficien\u021ba).<\/li>\n<li>Lua\u021bi \u00een considerare modelele de rulmen\u021bi magnetici pentru aplica\u021bii extreme<\/li>\n<\/ul>\n<h3>Instalare<\/h3>\n<ul>\n<li>Alinia\u021bi cu aten\u021bie \u00een timpul instal\u0103rii.<\/li>\n<li>Asigura\u021bi-v\u0103 c\u0103 nu exist\u0103 joc \u00een picioare \u00eenainte de fixarea definitiv\u0103 cu \u0219uruburi.<\/li>\n<li>Verifica\u021bi pozi\u021bia axial\u0103 a rotorului \u0219i jocul acestuia.<\/li>\n<li>Asigura\u021bi-v\u0103 c\u0103 capacele de cap\u0103t sunt aliniate corespunz\u0103tor \u0219i str\u00e2nse la cuplul indicat.<\/li>\n<\/ul>\n<h3>\u00centre\u0163inere<\/h3>\n<ul>\n<li>\u00cenlocui\u021bi rulmen\u021bii \u00eenainte ca uzura s\u0103 devin\u0103 excesiv\u0103.<\/li>\n<li>Urm\u0103ri\u021bi evolu\u021bia \u00een timp a vibra\u021biilor de 2\u00d7 frecven\u021ba re\u021belei.<\/li>\n<li>Verific\u0103 <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/echilibrare\/\">echilibrare<\/a> \u0219i reglarea periodic\u0103.<\/li>\n<li>P\u0103stra\u021bi motorul curat pentru a preveni blocajele sistemului de r\u0103cire \u0219i deform\u0103rile termice pe care acestea le provoac\u0103.<\/li>\n<\/ul>\n<h2>8. Aspecte speciale<\/h2>\n<h3>Large motors<\/h3>\n<ul>\n<li>For\u021bele UMP pot fi uria\u0219e \u2014 se m\u0103soar\u0103 \u00een tone.<\/li>\n<li>Alegerea rulmentului trebuie s\u0103 \u021bin\u0103 cont de sarcinile UMP.<\/li>\n<li>Calculele privind deformarea arborelui trebuie s\u0103 includ\u0103 UMP.<\/li>\n<li>Monitorizarea spa\u021biului de aer poate fi integrat\u0103 \u00een motoarele mari de importan\u021b\u0103 critic\u0103.<\/li>\n<\/ul>\n<h3>Motoare de mare vitez\u0103<\/h3>\n<ul>\n<li><a href=\"https:\/\/vibromera.eu\/ro\/glossary\/centrifugal-force\/\">For\u021be centrifuge<\/a> se combin\u0103 cu UMP.<\/li>\n<li>Exist\u0103 riscul de instabilitate dac\u0103 UMP este prea mare.<\/li>\n<li>Toleran\u021bele stricte ale spa\u021biului de aer sunt esen\u021biale.<\/li>\n<\/ul>\n<h3>Motoare verticale<\/h3>\n<ul>\n<li>Gravita\u021bia nu centreaz\u0103 rotorul, a\u0219a cum se \u00eent\u00e2mpl\u0103 \u00een cazul motoarelor orizontale.<\/li>\n<li>UMP poate trage rotorul \u00een orice direc\u021bie.<\/li>\n<li>The <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/thrust-bearing\/\">rulment axial<\/a> trebuie s\u0103 suporte greutatea rotorului plus orice component\u0103 axial\u0103 a UMP.<\/li>\n<\/ul>\n<h2>9. Leg\u0103tura cu alte probleme motorii<\/h2>\n<h3>UMP \u0219i excentricitatea rotorului<\/h3>\n<ul>\n<li><a href=\"https:\/\/vibromera.eu\/ro\/glossary\/rotor-eccentricity\/\">Excentricitate<\/a> causes UMP.<\/li>\n<li>UMP poate agrava excentricitatea (feedback pozitiv).<\/li>\n<li>Ambele genereaz\u0103 vibra\u021bii, dar la frecven\u021be diferite (1\u00d7 fa\u021b\u0103 de 2\u00d7f).<\/li>\n<\/ul>\n<h3>UMP \u0219i defec\u021biunile statorului<\/h3>\n<ul>\n<li>Ambele genereaz\u0103 vibra\u021bii cu frecven\u021ba de re\u021bea \u00eenmul\u021bit\u0103 cu 2.<\/li>\n<li>Defec\u021biunile statorului indic\u0103, de asemenea, un dezechilibru de curent.<\/li>\n<li>UMP apare din cauza excentricit\u0103\u021bii, f\u0103r\u0103 a exista un dezechilibru al curentului.<\/li>\n<li>Cele dou\u0103 pot coexista \u2014 o defec\u021biune a statorului \u0219i excentricitatea.<\/li>\n<\/ul>\n<h3>UMP \u0219i durata de via\u021b\u0103 a rulmentului<\/h3>\n<ul>\n<li>UMP m\u0103re\u0219te sarcinile radiale ale rulmen\u021bilor.<\/li>\n<li>Aceasta reduce durata de via\u021b\u0103 a rulmentului (durata de via\u021b\u0103 \u221d 1\/sarcin\u0103\u00b3).<\/li>\n<li>Aceasta provoac\u0103 o uzur\u0103 asimetric\u0103 a rulmen\u021bilor.<\/li>\n<li>Un rulment se poate defecta prematur, \u00een timp ce cel\u0103lalt r\u0103m\u00e2ne \u00een stare bun\u0103.<\/li>\n<\/ul>\n<h2>10. Punerea \u00een practic\u0103 pe teren<\/h2>\n<p>Atrac\u021bia magnetic\u0103 reprezint\u0103 o leg\u0103tur\u0103 important\u0103 \u00eentre componentele mecanice \u0219i cele electromagnetice din interiorul unui motor. Recunoa\u0219terea UMP ca surs\u0103 a vibra\u021biilor de 2\u00d7 frecven\u021ba re\u021belei, \u00een\u021belegerea leg\u0103turii sale cu excentricitatea spa\u021biului de aer \u0219i con\u0219tientizarea capacit\u0103\u021bii sale de a provoca defec\u021biuni progresive prin suprasolicitarea rulmen\u021bilor sunt elementele care permit un diagnostic corect. \u00cen practic\u0103, fluxul de lucru este simplu: se analizeaz\u0103 tendin\u021ba componentei de 2\u00d7f, se efectueaz\u0103 testul f\u0103r\u0103 sarcin\u0103 pentru a confirma o origine electromagnetic\u0103 \u0219i se exclud cauzele mecanice similare. Un analizor portabil cu dou\u0103 canale, precum <a href=\"https:\/\/vibromera.eu\/ro\/produs\/balanset-1\/\">Balanset-1A<\/a> capteaz\u0103 <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/amplitude\/\">amplitudine<\/a> \u0219i <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/phase\/\">faz\u0103<\/a> ale componentelor de vitez\u0103 de func\u021bionare \u0219i de frecven\u021b\u0103 dubl\u0103 a re\u021belei la motorul asamblat la viteza de func\u021bionare, ajut\u00e2nd inginerul s\u0103 disting\u0103 un UMP autentic de o defec\u021biune mecanic\u0103 de 1\u00d7 <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/unbalance\/\">dezechilibru<\/a> care are nevoie doar de <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/echilibrarea-campului\/\">echilibrarea la fa\u021ba locului<\/a> \u2014 \u0219i astfel s\u0103 ne concentr\u0103m asupra adev\u0103ratei cauze, \u00een loc s\u0103 ne ocup\u0103m doar de simptome.<\/p>\n<hr>\n<p><a href=\"https:\/\/vibromera.eu\/ro\/glossary\/\">\u2190 \u00cenapoi la indexul principal<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Afla\u021bi despre for\u021ba magnetic\u0103 (UMP), for\u021bele electromagnetice radiale dezechilibrate din motoare cauzate de excentricitatea \u00eentrefierului, care provoac\u0103 vibra\u021bii la o frecven\u021b\u0103 de 2X a liniei \u0219i deformarea rotorului.<\/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\/ro\/wp-json\/wp\/v2\/glossary\/160","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/types\/glossary"}],"version-history":[{"count":2,"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/glossary\/160\/revisions"}],"predecessor-version":[{"id":102157,"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/glossary\/160\/revisions\/102157"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/media?parent=160"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/categories?post=160"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/tags?post=160"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}