{"id":20618,"date":"2025-10-31T00:25:51","date_gmt":"2025-10-31T00:25:51","guid":{"rendered":"https:\/\/vibromera.eu\/glossary\/air-gap\/"},"modified":"2026-07-03T09:54:53","modified_gmt":"2026-07-03T09:54:53","slug":"air-gap","status":"publish","type":"glossary","link":"https:\/\/vibromera.eu\/ro\/glossary\/air-gap\/","title":{"rendered":"Ce este spa\u021biul de aer \u00een motoarele electrice? Distan\u021b\u0103 critic\u0103"},"content":{"rendered":"<h1>\u00cen\u021belegerea spa\u021biului de aer \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\/20618?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\/20618?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\/20618?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\/20618?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\/20618?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\/20618?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\/20618?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\/20618?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\/20618?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\/20618?add-to-cart=1852\" 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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\/20618?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\/20618?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\/20618?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\/20618?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>The <strong>\u00eentrefier<\/strong> este jocul radial \u00eengust dintre suprafa\u021ba exterioar\u0103 a rotorului \u0219i alezajul interior al statorului \u00eentr-un motor electric sau generator. De obicei, doar <strong>0.3\u20132.0 mm<\/strong> (0.012\u20130.080 in) l\u0103\u021bime, acest spa\u021biu inelar sub\u021bire este puntea magnetic\u0103 prin care energia electromagnetic\u0103 trece \u00eentre \u00eenf\u0103\u0219ur\u0103rile sta\u021bionare \u0219i elementul rotativ. \u00cen ciuda dimensiunii sale modeste, \u00eentrefierul este una dintre cele mai decisive dimensiuni \u00een proiectarea ma\u0219inii: el guverneaz\u0103 randamentul, factorul de putere, cuplul de pornire \u0219i \u2014 de interes direct pentru inginerul de fiabilitate \u2014 susceptibilitatea ma\u0219inii la <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/magnetic-pull\/\">trac\u021biune magnetic\u0103 dezechilibrat\u0103<\/a> \u0219i rezultatul <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/vibration\/\">vibra\u021bii<\/a>.<\/p>\n<h2>1. Defini\u021bie: Ce este \u00eentrefierul?<\/h2>\n<p>\u00centrefierul este jocul care separ\u0103 fierul rotorului de cel al statorului, astfel \u00eenc\u00e2t rotorul s\u0103 se poat\u0103 roti liber, permi\u021b\u00e2nd \u00een acela\u0219i timp fluxului magnetic s\u0103 treac\u0103 de la unul la cel\u0103lalt. Func\u021bional, el este elementul cu cea mai mare reluctan\u021b\u0103 din \u00eentregul circuit magnetic \u2014 aerul este de aproximativ o mie de ori mai pu\u021bin permeabil dec\u00e2t o\u021belul electrotehnic \u2014 astfel \u00eenc\u00e2t l\u0103\u021bimea \u0219i uniformitatea sa determin\u0103 modul \u00een care se comport\u0103 c\u00e2mpul magnetic. Dou\u0103 propriet\u0103\u021bi conteaz\u0103 \u00een mod independent: <em>magnitude<\/em> a \u00eentrefierului (c\u00e2t de larg este) \u0219i <em>uniformity<\/em> sa (dac\u0103 este aceea\u0219i pe tot conturul alezajului).<\/p>\n<p>Ambele au consecin\u021be profunde. Un \u00eentrefier neuniform produce for\u021be magnetice radiale dezechilibrate care genereaz\u0103 vibra\u021bii \u0219i accelereaz\u0103 <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/bearing-wear\/\">uzura rulmen\u021bilor<\/a>, \u00een timp ce un \u00eentrefier excesiv de larg erodeaz\u0103 discret randamentul \u0219i cre\u0219te curentul de magnetizare absorbit de motor pentru a-\u0219i stabili fluxul. Arta proiect\u0103rii motoarelor const\u0103 \u00een alegerea celui mai mic \u00eentrefier pe care mecanica \u00eel poate tolera \u00een siguran\u021b\u0103.<\/p>\n<h2>2. Dimensiuni tipice ale \u00eentrefierului<\/h2>\n<p>\u00centrefierul absolut cre\u0219te odat\u0103 cu dimensiunea ma\u0219inii, dar ca <em>fraction<\/em> din diametrul alezajului el se mic\u0219oreaz\u0103 \u2014 ma\u0219inile mari func\u021bioneaz\u0103 cu \u00eentrefieruri propor\u021bional mai str\u00e2nse, deoarece rotoarele lor sunt mai rigide \u00een raport cu diametrul lor.<\/p>\n<h3>Dup\u0103 dimensiunea motorului<\/h3>\n<ul>\n<li><strong>Motoare mici (&lt; 10 CP):<\/strong> 0,3\u20130,6 mm (0.012\u20130.024 in).<\/li>\n<li><strong>Motoare medii (10\u2013200 CP):<\/strong> 0,5\u20131,2 mm (0.020\u20130.047 in).<\/li>\n<li><strong>Motoare mari (200\u20131000 CP):<\/strong> 1,0\u20132,0 mm (0.040\u20130.080 in).<\/li>\n<li><strong>Motoare foarte mari (&gt; 1000 CP):<\/strong> 1,5\u20133,0 mm (0.060\u20130.120 in).<\/li>\n<li><strong>Tendin\u021b\u0103 general\u0103:<\/strong> ma\u0219inile mai mari au \u00eentrefieruri absolute mai mari, dar un \u00eentrefier mai mic ca procent din diametru.<\/li>\n<\/ul>\n<h3>Dup\u0103 tipul de motor<\/h3>\n<ul>\n<li><strong>Motoare de induc\u021bie:<\/strong> \u00eentrefier mai mare, tipic 0,5\u20132,0 mm.<\/li>\n<li><strong>Motoare sincrone:<\/strong> \u00een general similar cu cel al ma\u0219inilor cu induc\u021bie.<\/li>\n<li><strong>DC motors:<\/strong> \u00eentrefier al indusului foarte mic, 0,3\u20131,0 mm.<\/li>\n<li><strong>Modele de \u00eenalt\u0103 eficien\u021b\u0103:<\/strong> tind spre limita inferioar\u0103 a clasei lor pentru o performan\u021b\u0103 mai bun\u0103.<\/li>\n<\/ul>\n<h2>3. De ce conteaz\u0103 \u00eentrefierul<\/h2>\n<h3>Performan\u021b\u0103 electromagnetic\u0103<\/h3>\n<ul>\n<li><strong>Reluctan\u021ba circuitului magnetic:<\/strong> \u00eentrefierul este reluctan\u021ba dominant\u0103 pe traseul fluxului; restul (o\u021belul) este, comparativ, transparent.<\/li>\n<li><strong>Curent de magnetizare:<\/strong> un \u00eentrefier mai mic necesit\u0103 un curent de magnetizare mai redus pentru a stabili acela\u0219i flux, ceea ce cre\u0219te factorul de putere.<\/li>\n<li><strong>Eficien\u0163\u0103:<\/strong> \u00eentrefierurile mai mici sunt \u00een general mai eficiente, deoarece reduc pierderile de magnetizare.<\/li>\n<li><strong>Producerea cuplului:<\/strong> un \u00eentrefier mai str\u00e2ns ofer\u0103 un cuplaj magnetic mai puternic \u0219i, prin urmare, un cuplu mai bun, inclusiv cuplul de pornire.<\/li>\n<\/ul>\n<h3>Considera\u021bii mecanice<\/h3>\n<ul>\n<li><strong>Joc mecanic:<\/strong> \u00eentrefierul trebuie s\u0103 absoarb\u0103 deformarea arborelui, toleran\u021bele lag\u0103relor \u0219i dilatarea termic\u0103 f\u0103r\u0103 ca rotorul s\u0103 ating\u0103 vreodat\u0103 statorul.<\/li>\n<li><strong>Marj\u0103 de siguran\u021b\u0103:<\/strong> previne contactul rotor\u2013stator \u00een timpul tranzien\u021bilor de vibra\u021bii sau al condi\u021biilor de func\u021bionare neobi\u0219nuite.<\/li>\n<li><strong>Manufacturability:<\/strong> \u00eentrefierul ales trebuie s\u0103 poat\u0103 fi ob\u021binut \u00een mod repetabil \u00een limitele toleran\u021belor normale de produc\u021bie.<\/li>\n<\/ul>\n<p>Aceste dou\u0103 presiuni ac\u021bioneaz\u0103 \u00een direc\u021bii opuse, motiv pentru care \u00eentrefierul este fundamental un compromis, mai degrab\u0103 dec\u00e2t o valoare care trebuie minimizat\u0103 orbe\u0219te. Realitatea mecanic\u0103 a <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/eccentricity\/\">excentricitate<\/a> \u00een exploatare \u00eenseamn\u0103 c\u0103 un proiectant care alege un \u00eentrefier prea str\u00e2ns schimb\u0103 pur \u0219i simplu eficien\u021ba pentru riscul unei frec\u0103ri distructive.<\/p>\n<h2>4. Excentricitatea \u00eentrefierului<\/h2>\n<p>Excentricitatea \u00eentrefierului reprezint\u0103 neuniformitatea jocului pe circumferin\u021b\u0103 \u2014 cel mai important defect al \u00eentrefierului pentru analistul de vibra\u021bii.<\/p>\n<ul>\n<li><strong>\u00centrefier uniform:<\/strong> aceea\u0219i dimensiune \u00een fiecare pozi\u021bie unghiular\u0103.<\/li>\n<li><strong>\u00centrefier excentric:<\/strong> variaz\u0103 \u00een jurul alezajului \u2014 mic pe o parte, mai mare pe partea opus\u0103.<\/li>\n<li><strong>Cuantificare:<\/strong> excentricitate = (g<sub>max<\/sub> \u2212 g<sub>min<\/sub>) \/ g<sub>average<\/sub>, exprimat ca procent.<\/li>\n<li><strong>Limita acceptabil\u0103:<\/strong> de obicei &lt; 10% pentru o func\u021bionare corect\u0103.<\/li>\n<\/ul>\n<p>Inginerii fac o distinc\u021bie suplimentar\u0103 <strong>excentricitate static\u0103<\/strong> (rotorul se afl\u0103 descentrat, dar punctul \u00eengust r\u0103m\u00e2ne \u00eentr-o loca\u021bie fix\u0103 \u2014 de obicei o eroare de alezaj sau de asamblare) fa\u021b\u0103 de <strong>excentricitate dinamic\u0103<\/strong> (punctul \u00eengust se rote\u0219te odat\u0103 cu arborele \u2014 un rotor \u00eendoit sau excentric). Cele dou\u0103 produc semn\u0103turi spectrale u\u0219or diferite, ceea ce permite diagnosticarea s\u0103 le deosebeasc\u0103.<\/p>\n<h3>Cauze ale excentricit\u0103\u021bii<\/h3>\n<ul>\n<li><strong>Uzura rulmen\u021bilor:<\/strong> permite rotorului s\u0103 se a\u0219eze descentrat \u00een carcasa sa.<\/li>\n<li><strong>Toleran\u021be de fabrica\u021bie:<\/strong> alezajul statorului sau rotorul nu sunt perfect concentrice.<\/li>\n<li><strong>Erori de asamblare:<\/strong> capace de cap\u0103t dezaliniate sau rotor montat necorespunz\u0103tor.<\/li>\n<li><strong>Distorsiune termic\u0103:<\/strong> \u00eenc\u0103lzire neuniform\u0103 ce deformeaz\u0103 rotunjimea.<\/li>\n<li><strong>Deformarea cadrului:<\/strong> <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/soft-foot\/\">picior moale<\/a> sau tensiunile de montaj care r\u0103sucesc carcasa \u0219i alezajul.<\/li>\n<\/ul>\n<h3>Efectele excentricit\u0103\u021bii<\/h3>\n<ul>\n<li><strong><a href=\"https:\/\/vibromera.eu\/ro\/glossary\/magnetic-pull\/\">Trac\u021biune magnetic\u0103 dezechilibrat\u0103<\/a> (UMP):<\/strong> o for\u021b\u0103 radial\u0103 net\u0103 care trage rotorul spre partea cu intersti\u021biu mic, ceea ce tinde s\u0103 agraveze excentricitatea \u00eentr-o bucl\u0103 de reac\u021bie.<\/li>\n<li><strong>Vibra\u021bii la frecven\u021be legate de re\u021bea:<\/strong> excentricitatea static\u0103 ridic\u0103 de obicei un v\u00e2rf la 2\u00d7 frecven\u021ba de alimentare <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/electrical-frequency\/\">frecven\u021ba electric\u0103<\/a> (100 Hz la o alimentare de 50 Hz, 120 Hz la 60 Hz), \u00een timp ce excentricitatea dinamic\u0103 apare \u00een principal la viteza de func\u021bionare 1\u00d7 cu benzi laterale de trecere a polilor.<\/li>\n<li><strong><a href=\"https:\/\/vibromera.eu\/ro\/glossary\/pole-pass-frequency\/\">Frecven\u021ba de trecere a polilor<\/a> sidebands:<\/strong> o semn\u0103tur\u0103 de diagnostic revelatoare care \u00eencadreaz\u0103 v\u00e2rful frecven\u021bei re\u021belei.<\/li>\n<li><strong>Supra\u00eenc\u0103rcarea rulmentului:<\/strong> for\u021ba magnetic\u0103 neechilibrat\u0103 asimetric\u0103 (UMP) solicit\u0103 o parte a lag\u0103rului, acceler\u00e2nd uzura.<\/li>\n<li><strong>Pierdere de eficien\u021b\u0103:<\/strong> un circuit magnetic distorsionat nu este niciodat\u0103 optim.<\/li>\n<\/ul>\n<h2>5. M\u0103surarea \u0219i evaluarea intersti\u021biului de aer<\/h2>\n<h3>M\u0103surare direct\u0103 (motor demontat)<\/h3>\n<ul>\n<li><strong>Feeler gauges:<\/strong> introduce\u021bi calele lamelare \u00eentre rotor \u0219i stator \u00een mai multe puncte.<\/li>\n<li><strong>Procedura:<\/strong> m\u0103sura\u021bi \u00een 8\u201312 pozi\u021bii distribuite uniform pe circumferin\u021b\u0103.<\/li>\n<li><strong>Calcula\u021bi:<\/strong> media, valoarea minim\u0103, valoarea maxim\u0103 \u0219i procentul de excentricitate rezultat.<\/li>\n<li><strong>C\u00e2nd:<\/strong> \u00een timpul reviziei unui motor sau al \u00eenlocuirii lag\u0103relor, c\u00e2nd rotorul este demontat.<\/li>\n<\/ul>\n<h3>Evaluare indirect\u0103 (motor \u00een func\u021biune)<\/h3>\n<p>Rareori ave\u021bi ocazia s\u0103 demonta\u021bi o ma\u0219in\u0103 \u00een func\u021biune, a\u0219a c\u0103 starea intersti\u021biului este de obicei dedus\u0103 din semn\u0103turile sale electrice \u0219i mecanice folosind <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/vibration-analysis\/\">analiza vibra\u021biilor<\/a>:<\/p>\n<ul>\n<li><strong>Vibra\u021bie la frecven\u021ba de 2\u00d7 frecven\u021ba re\u021belei:<\/strong> o amplitudine ridicat\u0103 sugereaz\u0103 un \u00eentrefier neuniform \u2014 confirma\u021bi prin verific\u0103ri ale curentului \u0219i \u00een sarcin\u0103 \/ f\u0103r\u0103 sarcin\u0103, deoarece dezechilibrul aliment\u0103rii \u0219i rezonan\u021ba cadrului pot ridica acela\u0219i v\u00e2rf.<\/li>\n<li><strong>Benzi laterale la frecven\u021ba de trecere a polilor:<\/strong> prezen\u021ba \u0219i amplitudinea lor reflect\u0103 gradul de excentricitate.<\/li>\n<li><strong>Analiza semn\u0103turii curentului motorului (MCSA):<\/strong> efectele intersti\u021biului de aer moduleaz\u0103 curentul statorului \u0219i apar \u00een spectrul acestuia.<\/li>\n<li><strong>Zgomot acustic:<\/strong> intensitatea zumzetului electromagnetic cre\u0219te adesea odat\u0103 cu excentricitatea.<\/li>\n<\/ul>\n<p>Pe teren, un instrument cu dou\u0103 canale precum <a href=\"https:\/\/vibromera.eu\/ro\/produs\/balanset-1\/\">Balanset-1A<\/a> face aceast\u0103 evaluare practic\u0103: cu <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/accelerometer\/\">accelerometre<\/a> pe carcasele lag\u0103relor motorului, acesta capteaz\u0103 <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/spectrum\/\">spectrul de vibra\u021bii<\/a> la tura\u021bia de func\u021bionare, permi\u021b\u00e2nd analistului s\u0103 identifice v\u00e2rful la dublul frecven\u021bei re\u021belei \u0219i benzile laterale de tip pol-pas f\u0103r\u0103 a opri produc\u021bia. Deoarece simptomele \u00eentrefierului se suprapun cu defecte mecanice simple <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/unbalance\/\">dezechilibru<\/a>, analistul confirm\u0103 originea electric\u0103 observ\u00e2nd dac\u0103 v\u00e2rful suspect dispare \u00een momentul \u00een care motorul este deconectat de la tensiune \u2014 un truc la oprirea prin iner\u021bie pe care defectele mecanice nu \u00eel pot imita. Pute\u021bi converti tura\u021bia de func\u021bionare \u0219i frecven\u021ba re\u021belei \u00een v\u00e2rfurile exacte pe care trebuie s\u0103 le c\u0103uta\u021bi cu ajutorul <a href=\"https:\/\/vibromera.eu\/ro\/calculators\/motor-electrical-frequencies\/\">Calculator de frecven\u021b\u0103 a defectelor electrice ale motorului<\/a>, \u0219i pute\u021bi verifica nivelul global m\u0103surat \u00een raport cu limitele folosind <a href=\"https:\/\/vibromera.eu\/ro\/calculators\/vibration-velocity\/\">Instrument pentru viteza de vibra\u021bie conform ISO 20816<\/a>.<\/p>\n<h2>6. Probleme ale \u00eentrefierului \u0219i solu\u021bii<\/h2>\n<h3>Prea mic (sub specifica\u021bia minim\u0103)<\/h3>\n<p><strong>Consecin\u021be:<\/strong> risc de contact rotor\u2013stator \u00een condi\u021bii de vibra\u021bie sau deformare; atrac\u021bie magnetic\u0103 foarte ridicat\u0103 dac\u0103 \u00eentrefierul este \u0219i excentric; deteriorare \u00een timpul pornirii sau al regimurilor tranzitorii.<\/p>\n<ul>\n<li>Eroare de fabrica\u021bie \u2192 reprelucra\u021bi rotorul sau realeza\u021bi statorul.<\/li>\n<li>Rotor instalat gre\u0219it \u2192 \u00cenlocui\u021bi cu discul corect<\/li>\n<li>Uzura lag\u0103relor care permite deplasarea rotorului \u2192 \u00eenlocui\u021bi lag\u0103rele \u0219i verifica\u021bi refacerea \u00eentrefierului.<\/li>\n<\/ul>\n<h3>Prea mare (peste specifica\u021bia maxim\u0103)<\/h3>\n<p><strong>Consecin\u021be:<\/strong> randament redus din cauza curentului de magnetizare mai mare, factor de putere mai sc\u0103zut, cuplu de pornire redus \u0219i curent la mers \u00een gol mai mare. Aceast\u0103 stare este de obicei mai pu\u021bin critic\u0103 \u2014 ma\u0219ina poate func\u021biona, dar cu performan\u021be degradate.<\/p>\n<h3>Neuniform (excentric) \u2014 cazul frecvent \u0219i problematic<\/h3>\n<p>Eccentricity is the most frequent and most damaging air-gap defect because it is self-reinforcing: UMP pulls the rotor further off-centre, which increases UMP. It typically creates 2\u00d7 line-frequency vibration (static eccentricity) or 1\u00d7 vibration with pole-pass sidebands (dynamic eccentricity) and accelerates bearing wear through that positive-feedback loop. The remedy is to replace worn bearings, correct any frame distortion, and verify rotor concentricity.<\/p>\n<h3>Referin\u021b\u0103 rapid\u0103 de diagnosticare<\/h3>\n<table border=\"1\" style=\"width:100%; border-collapse:collapse;\">\n<tr>\n<th>Simptom<\/th>\n<th>Probabil\u0103 problem\u0103 de \u00eentrefier<\/th>\n<\/tr>\n<tr>\n<td>Vibra\u021bie ridicat\u0103 la dublul frecven\u021bei de re\u021bea<\/td>\n<td>\u00centrefier excentric, atrac\u021bie magnetic\u0103 neechilibrat\u0103<\/td>\n<\/tr>\n<tr>\n<td>Benzi laterale la frecven\u021ba de trecere a polilor<\/td>\n<td>Decalaj neuniform<\/td>\n<\/tr>\n<tr>\n<td>Curent ridicat \u00een gol<\/td>\n<td>Decalaj excesiv<\/td>\n<\/tr>\n<tr>\n<td>Cuplu de pornire redus<\/td>\n<td>Decalaj excesiv<\/td>\n<\/tr>\n<tr>\n<td>Indicii de frecare<\/td>\n<td>Spa\u021biu liber insuficient<\/td>\n<\/tr>\n<tr>\n<td>Uzur\u0103 asimetric\u0103 a rulmen\u021bilor<\/td>\n<td>\u00centrefier excentric care creeaz\u0103 UMP<\/td>\n<\/tr>\n<\/table>\n<h2>7. Urm\u0103rirea evolu\u021biei, proiectare \u0219i fabrica\u021bie<\/h2>\n<p>Deoarece excentricitatea se dezvolt\u0103 lent, componenta la dublul frecven\u021bei re\u021belei este un parametru ideal pentru a urm\u0103ri evolu\u021bia <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/trending\/\">tendin\u0163\u0103<\/a> pe durata de via\u021b\u0103 a unui motor. Un v\u00e2rf la dublul frecven\u021bei aflat \u00een cre\u0219tere constant\u0103 semnaleaz\u0103 o excentricitate \u00een dezvoltare \u2014 aproape \u00eentotdeauna din cauza uzurii lag\u0103relor \u2014 \u0219i contribuie direct la deciziile de \u00eenlocuire a lag\u0103relor. O bun\u0103 practic\u0103 este s\u0103 documenta\u021bi m\u0103sur\u0103torile \u00eentrefierului efectuate cu lera de grosime la fiecare revizie \u0219i s\u0103 le compara\u021bi at\u00e2t cu specifica\u021bia de pe pl\u0103cu\u021ba de identificare, c\u00e2t \u0219i cu valoarea anterioar\u0103.<\/p>\n<p>Din punct de vedere al proiect\u0103rii, \u00eentrefierul este rezultatul unui compromis deliberat:<\/p>\n<ul>\n<li><strong>Smaller gap:<\/strong> randament, factor de putere \u0219i cuplu mai bune, dar o for\u021b\u0103 magnetic\u0103 mai mare la excentricitate \u0219i un joc mecanic mai redus.<\/li>\n<li><strong>Larger gap:<\/strong> joc mecanic mai mare \u0219i for\u021b\u0103 magnetic\u0103 mai redus\u0103, dar un randament mai slab \u0219i un curent de magnetizare mai ridicat.<\/li>\n<li><strong>Optimizare:<\/strong> cel mai mic intersti\u021biu compatibil cu cerin\u021bele mecanice \u0219i cu toleran\u021bele de fabrica\u021bie realizabile.<\/li>\n<\/ul>\n<p>Desenele specific\u0103 un intersti\u021biu nominal cu toleran\u021be de aproximativ \u00b110\u201320%, o limit\u0103 de excentricitate (adesea &lt; 10%) \u0219i o verificare a controlului calit\u0103\u021bii \u00een timpul fabrica\u021biei. Men\u021binerea acelui intersti\u021biu uniform printr-o \u00eentre\u021binere disciplinat\u0103 a rulmen\u021bilor \u2014 \u0219i verificarea lui prin urm\u0103rirea tendin\u021belor vibra\u021biilor \u2014 este ceea ce men\u021bine un motor eficient, silen\u021bios \u0219i ferit de contactul catastrofal rotor-stator care pune cap\u0103t vie\u021bii unei ma\u0219ini \u00een c\u00e2teva secunde.<\/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 spa\u021biul de aer, jocul radial dintre rotorul motorului \u0219i stator, esen\u021bial pentru performan\u021ba electromagnetic\u0103, eficien\u021b\u0103 \u0219i prevenirea trac\u021biunii magnetice \u0219i a contactului rotor-stator.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[109,110],"tags":[],"class_list":["post-20618","glossary","type-glossary","status-publish","hentry","category-glossary","category-vibration-diagnostics"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/glossary\/20618","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\/20618\/revisions"}],"predecessor-version":[{"id":102159,"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/glossary\/20618\/revisions\/102159"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/media?parent=20618"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/categories?post=20618"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/tags?post=20618"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}