{"id":52,"date":"2025-10-31T00:25:51","date_gmt":"2025-10-31T00:25:51","guid":{"rendered":"https:\/\/vibromera.eu\/glossary\/bearing-span\/"},"modified":"2026-05-23T22:55:25","modified_gmt":"2026-05-23T22:55:25","slug":"bearing-span","status":"publish","type":"glossary","link":"https:\/\/vibromera.eu\/pt_br\/glossary\/bearing-span\/","title":{"rendered":"O que \u00e9 o v\u00e3o entre os mancais na din\u00e2mica de rotores?"},"content":{"rendered":"<h1>Entendendo a dist\u00e2ncia entre os mancais na din\u00e2mica de rotores<\/h1>\n\t\t<section class=\"woocommerce hestia-shop products is-shortcode\" id=\"products\" data-sorder=\"hestia_shop\" >\n\t\t\t\t\t\t<div class=\"\">\n\t\t\t\t\t\t<div class=\"hestia-shop-content\">\n\t\t\t<div class=\"row\" data-aos=\"fade-up\" >\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/pt_br\/product\/balanset-1\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/pt_br\/product\/balanset-1\/\" title=\"Balanceador port\u00e1til e analisador de vibra\u00e7\u00e3o Balanset-1A\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Balanset-1A kit completo de balanceador port\u00e1til e analisador de vibra\u00e7\u00e3o\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-18x12.webp 18w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-272x182.webp 272w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/pt_br\/product-category\/devices\/\" rel=\"tag\">Dispositivos<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/pt_br\/product\/balanset-1\/\" title=\"Balanceador port\u00e1til e analisador de vibra\u00e7\u00e3o Balanset-1A\">Balanceador port\u00e1til e analisador de vibra\u00e7\u00e3o Balanset-1A<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>1,975.00<\/span> + IVA (se aplic\u00e1vel)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/pt_br\/wp-json\/wp\/v2\/glossary\/52?add-to-cart=986\" data-quantity=\"1\" data-product_id=\"986\" data-product_sku=\"BS-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Adicionar ao carrinho\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adicionar ao carrinho\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/pt_br\/wp-json\/wp\/v2\/glossary\/52?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=\"Adicione ao carrinho: \u201cPortable balancer &amp; Vibration analyzer Balanset-1A\u201d\" rel=\"nofollow\" data-success_message=\"\u201cPortable balancer &amp; Vibration analyzer Balanset-1A\u201d foi adicionado ao seu carrinho\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adicionar ao carrinho<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_986\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/pt_br\/product\/vibration-sensor\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/pt_br\/product\/vibration-sensor\/\" title=\"Sensor de vibra\u00e7\u00e3o\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Close-up do sensor de vibra\u00e7\u00e3o Balanset-1A\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-768x512.webp 768w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-1024x682.webp 1024w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3.webp 1280w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/pt_br\/product-category\/parts\/\" rel=\"tag\">Pe\u00e7as<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/pt_br\/product\/vibration-sensor\/\" title=\"Sensor de vibra\u00e7\u00e3o\">Sensor de vibra\u00e7\u00e3o<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>90.00<\/span> + IVA (se aplic\u00e1vel)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/pt_br\/wp-json\/wp\/v2\/glossary\/52?add-to-cart=1820\" data-quantity=\"1\" data-product_id=\"1820\" data-product_sku=\"VS-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Adicionar ao carrinho\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adicionar ao carrinho\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/pt_br\/wp-json\/wp\/v2\/glossary\/52?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=\"Adicione ao carrinho: \u201cVibration sensor\u201d\" rel=\"nofollow\" data-success_message=\"\u201cVibration sensor\u201d foi adicionado ao seu carrinho\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adicionar ao carrinho<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1820\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/pt_br\/product\/optical-sensor-for-balanset-and-arbalance\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/pt_br\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Sensor \u00f3ptico (tac\u00f4metro a laser)\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Sensor \u00f3ptico (tac\u00f4metro a laser)\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-1024x682.webp 1024w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-768x512.webp 768w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-1536x1023.webp 1536w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-18x12.webp 18w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-460x306.webp 460w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU.webp 1600w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/pt_br\/product-category\/parts\/\" rel=\"tag\">Pe\u00e7as<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/pt_br\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Sensor \u00f3ptico (tac\u00f4metro a laser)\">Sensor \u00f3ptico (tac\u00f4metro a laser)<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>124.00<\/span> + IVA (se aplic\u00e1vel)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/pt_br\/wp-json\/wp\/v2\/glossary\/52?add-to-cart=1832\" data-quantity=\"1\" data-product_id=\"1832\" data-product_sku=\"Tach-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Adicionar ao carrinho\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adicionar ao carrinho\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/pt_br\/wp-json\/wp\/v2\/glossary\/52?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=\"Adicione ao carrinho: \u201cOptical Sensor (Laser Tachometer)\u201d\" rel=\"nofollow\" data-success_message=\"\u201cOptical Sensor (Laser Tachometer)\u201d foi adicionado ao seu carrinho\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adicionar ao carrinho<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1832\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/pt_br\/product\/balanset-4\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/pt_br\/product\/balanset-4\/\" title=\"Balanset-4\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Kit de balanceamento de rotor Vibromera: estojo de transporte, condicionador de sinal multicanal, analisador port\u00e1til, base magn\u00e9tica, sensores de vibra\u00e7\u00e3o e cabos espiralados.\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-18x12.webp 18w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-460x306.webp 460w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4.webp 640w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/pt_br\/product-category\/devices\/\" rel=\"tag\">Dispositivos<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/pt_br\/product\/balanset-4\/\" title=\"Balanset-4\">Balanset-4<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>6,803.00<\/span> + IVA (se aplic\u00e1vel)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/pt_br\/wp-json\/wp\/v2\/glossary\/52?add-to-cart=1833\" data-quantity=\"1\" data-product_id=\"1833\" data-product_sku=\"BS-4\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Adicionar ao carrinho\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adicionar ao carrinho\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/pt_br\/wp-json\/wp\/v2\/glossary\/52?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=\"Adicione ao carrinho: \u201cBalanset-4\u201d\" rel=\"nofollow\" data-success_message=\"\u201cBalanset-4\u201d foi adicionado ao seu carrinho\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adicionar ao carrinho<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1833\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div><!-- \/.row --><div class=\"row\">\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/pt_br\/product\/magnet-stand\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/pt_br\/product\/magnet-stand\/\" title=\"Tamanho do suporte magn\u00e9tico - 60 kgf\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Base magn\u00e9tica.\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-1024x682.webp 1024w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-768x512.webp 768w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36.webp 1280w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/pt_br\/product-category\/parts\/\" rel=\"tag\">Pe\u00e7as<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/pt_br\/product\/magnet-stand\/\" title=\"Tamanho do suporte magn\u00e9tico - 60 kgf\">Tamanho do suporte magn\u00e9tico - 60 kgf<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>46.00<\/span> + IVA (se aplic\u00e1vel)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/pt_br\/wp-json\/wp\/v2\/glossary\/52?add-to-cart=1852\" data-quantity=\"1\" data-product_id=\"1852\" data-product_sku=\"MS-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Adicionar ao carrinho\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adicionar ao carrinho\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/pt_br\/wp-json\/wp\/v2\/glossary\/52?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=\"Adicione ao carrinho: \u201cMagnetic Stand Insize-60-kgf\u201d\" rel=\"nofollow\" data-success_message=\"\u201cMagnetic Stand Insize-60-kgf\u201d foi adicionado ao seu carrinho\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adicionar ao carrinho<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1852\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/pt_br\/product\/reflective-tape\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/pt_br\/product\/reflective-tape\/\" title=\"Fita refletiva\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Fita refletiva\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-16x12.webp 16w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-460x306.webp 460w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-272x182.webp 272w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/pt_br\/product-category\/parts\/\" rel=\"tag\">Pe\u00e7as<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/pt_br\/product\/reflective-tape\/\" title=\"Fita refletiva\">Fita refletiva<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>10.00<\/span> + IVA (se aplic\u00e1vel)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/pt_br\/wp-json\/wp\/v2\/glossary\/52?add-to-cart=2329\" data-quantity=\"1\" data-product_id=\"2329\" data-product_sku=\"rt-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Adicionar ao carrinho\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adicionar ao carrinho\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/pt_br\/wp-json\/wp\/v2\/glossary\/52?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=\"Adicione ao carrinho: \u201cReflective tape\u201d\" rel=\"nofollow\" data-success_message=\"\u201cReflective tape\u201d foi adicionado ao seu carrinho\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adicionar ao carrinho<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_2329\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/pt_br\/product\/dynamic-balancer-balanset-1a\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/pt_br\/product\/dynamic-balancer-balanset-1a\/\" title=\"Balanceador din\u00e2mico &quot;Balanset-1A&quot; OEM\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Conte\u00fado do kit Balanset-1A com unidade de interface, sensores, tac\u00f4metro e acess\u00f3rios\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-1024x683.webp 1024w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-768x512.webp 768w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-1536x1024.webp 1536w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-2048x1366.webp 2048w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-e1732998877834.webp 708w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/pt_br\/product-category\/devices\/\" rel=\"tag\">Dispositivos<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/pt_br\/product\/dynamic-balancer-balanset-1a\/\" title=\"Balanceador din\u00e2mico &quot;Balanset-1A&quot; OEM\">Balanceador din\u00e2mico \"Balanset-1A\" OEM<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>1,735.00<\/span> + IVA (se aplic\u00e1vel)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/pt_br\/wp-json\/wp\/v2\/glossary\/52?add-to-cart=4193\" data-quantity=\"1\" data-product_id=\"4193\" data-product_sku=\"BS-1OEM\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Adicionar ao carrinho\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adicionar ao carrinho\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/pt_br\/wp-json\/wp\/v2\/glossary\/52?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=\"Adicione ao carrinho: \u201cDynamic balancer \u201cBalanset-1A\u201d OEM\u201d\" rel=\"nofollow\" data-success_message=\"\u201cDynamic balancer \u201cBalanset-1A\u201d OEM\u201d foi adicionado ao seu carrinho\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adicionar ao carrinho<\/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>v\u00e3o de apoio<\/strong> \u2014 tamb\u00e9m chamado de dist\u00e2ncia entre rolamentos ou v\u00e3o de apoio \u2014 \u00e9 a dist\u00e2ncia entre os centros dos dois rolamentos de apoio principais de um <a href=\"https:\/\/vibromera.eu\/pt_br\/glossary\/rotor\/\">rotor<\/a>. Por mais simples que pare\u00e7a, essa \u00fanica dimens\u00e3o \u00e9 um dos par\u00e2metros mais influentes em toda a <a href=\"https:\/\/vibromera.eu\/pt_br\/glossary\/rotor-dynamics\/\">din\u00e2mica do rotor<\/a>, pois determina a flex\u00e3o do eixo <a href=\"https:\/\/vibromera.eu\/pt_br\/glossary\/stiffness\/\">rigidez<\/a>, e a rigidez, por sua vez, determina a <a href=\"https:\/\/vibromera.eu\/pt_br\/glossary\/critical-speed\/\">velocidades cr\u00edticas<\/a>, as deflex\u00f5es m\u00e1ximas, as cargas suportadas pelos rolamentos e todo o comportamento din\u00e2mico do rotor. Para um determinado di\u00e2metro e material do eixo, aumentar o comprimento do eixo torna-o mais flex\u00edvel e reduz suas velocidades cr\u00edticas; encurt\u00e1-lo torna o eixo mais r\u00edgido e aumenta essas velocidades. Essa alavanca \u2014 um grande efeito a partir de uma modesta altera\u00e7\u00e3o geom\u00e9trica \u2014 \u00e9 o que faz com que o comprimento do eixo seja uma decis\u00e3o de projeto fundamental, e n\u00e3o uma considera\u00e7\u00e3o secund\u00e1ria.<\/p>\n<h2>1. Defini\u00e7\u00e3o e princ\u00edpios b\u00e1sicos<\/h2>\n<p>Entre seus dois apoios, um eixo se comporta como uma viga simplesmente apoiada, e os mesmos princ\u00edpios mec\u00e2nicos que regem qualquer viga tamb\u00e9m regem o rotor. O v\u00e3o corresponde ao comprimento da viga e, como a deflex\u00e3o da viga varia proporcionalmente ao cubo do comprimento, a flexibilidade do rotor \u00e9 extremamente sens\u00edvel \u00e0 localiza\u00e7\u00e3o dos rolamentos. Tudo o que se segue \u2014 velocidades cr\u00edticas, limites de deflex\u00e3o, cargas nos rolamentos \u2014 decorre dessa rela\u00e7\u00e3o c\u00fabica; portanto, vale a pena estabelec\u00ea-la cuidadosamente antes de tirar conclus\u00f5es sobre o projeto.<\/p>\n<h2>2. Efeito na rigidez do rotor<\/h2>\n<h3>A rela\u00e7\u00e3o entre a viga e a mec\u00e2nica<\/h3>\n<p>A rigidez do eixo entre os rolamentos obedece \u00e0 equa\u00e7\u00e3o fundamental da viga:<\/p>\n<blockquote><p><strong>Deflex\u00e3o \u221d L\u00b3 \/ (E \u00d7 I)<\/strong><\/p><\/blockquote>\n<ul>\n<li><strong>eu<\/strong> = v\u00e3o (comprimento).<\/li>\n<li><strong>E<\/strong> = o m\u00f3dulo de elasticidade do material.<\/li>\n<li><strong>EU<\/strong> = o momento de in\u00e9rcia da \u00e1rea do eixo, que \u00e9 proporcional ao di\u00e2metro ao quadrado.<\/li>\n<li><strong>Principal conclus\u00e3o:<\/strong> a deflex\u00e3o \u2014 e, portanto, a flexibilidade \u2014 aumenta com o <em>cubo<\/em> of the span.<\/li>\n<\/ul>\n<h3>Implica\u00e7\u00f5es pr\u00e1ticas<\/h3>\n<ul>\n<li>Duplicar o v\u00e3o do rolamento aumenta a deflex\u00e3o em oito vezes (2\u00b3 = 8).<\/li>\n<li>Reduzir a extens\u00e3o em 25% diminui a deflex\u00e3o em cerca de 58%.<\/li>\n<li>Pequenas altera\u00e7\u00f5es na posi\u00e7\u00e3o dos rolamentos podem ter efeitos consider\u00e1veis na rigidez.<\/li>\n<li>Em rotores longos, a envergadura \u00e9 um fator mais determinante do que o di\u00e2metro do eixo \u2014 embora, como a in\u00e9rcia varia proporcionalmente ao quadrado do di\u00e2metro, o di\u00e2metro seja o fator mais determinante quando ambos podem ser alterados.<\/li>\n<\/ul>\n<h2>3. Impacto nas velocidades cr\u00edticas<\/h2>\n<h3>A rela\u00e7\u00e3o fundamental<\/h3>\n<p>Para um rotor simples \u2014 um eixo uniforme com uma massa concentrada no centro \u2014 o primeiro <a href=\"https:\/\/vibromera.eu\/pt_br\/glossary\/natural-frequency\/\">frequ\u00eancia natural<\/a> \u00e9 aproximadamente:<\/p>\n<ul>\n<li><strong>f \u221d \u221a(k\/m)<\/strong>, em que k \u00e9 a rigidez do eixo e m \u00e9 a massa do rotor.<\/li>\n<li>Como a rigidez \u00e9 proporcional a 1\/L\u00b3, conclui-se que <strong>f \u221d 1\/L<sup>3\/2<\/sup><\/strong>.<\/li>\n<li><strong>Practical rule:<\/strong> a primeira velocidade cr\u00edtica varia inversamente \u00e0 extens\u00e3o do v\u00e3o elevada \u00e0 pot\u00eancia de 1,5.<\/li>\n<\/ul>\n<h3>Implica\u00e7\u00f5es de projeto<\/h3>\n<ul>\n<li><strong>Shorter span:<\/strong> velocidades cr\u00edticas mais elevadas, um rotor mais r\u00edgido, mais adequado para opera\u00e7\u00e3o em alta velocidade.<\/li>\n<li><strong>Longer span:<\/strong> velocidades cr\u00edticas mais baixas, um rotor mais flex\u00edvel que talvez precise funcionar como um <a href=\"https:\/\/vibromera.eu\/pt_br\/glossary\/flexible-rotor\/\">rotor flex\u00edvel<\/a>.<\/li>\n<li><strong>Optimisation:<\/strong> um equil\u00edbrio entre acessibilidade (um v\u00e3o mais longo facilita a montagem) e rigidez (um v\u00e3o mais curto apresenta melhor desempenho din\u00e2mico).<\/li>\n<\/ul>\n<h3>Exemplo pr\u00e1tico<\/h3>\n<p>Considere um rotor de motor com uma primeira velocidade cr\u00edtica de 3000 RPM e um comprimento de rolamento de 500 mm:<\/p>\n<ul>\n<li>Aumente a extens\u00e3o para 600 mm (um aumento de 20%).<\/li>\n<li>A velocidade cr\u00edtica cai para 3000 \/ (600\/500)<sup>1.5<\/sup> \u2248 2600 RPM.<\/li>\n<li>Essa queda de 13% poderia aproximar a velocidade cr\u00edtica perigosamente da velocidade de opera\u00e7\u00e3o \u2014 exatamente o tipo de varia\u00e7\u00e3o que vale a pena comparar com a velocidade de funcionamento por meio de um <a href=\"https:\/\/vibromera.eu\/pt_br\/calculators\/rotor-critical-speed\/\">Calculadora de Velocidade Cr\u00edtica do Rotor<\/a>.<\/li>\n<\/ul>\n<h2>4. Considera\u00e7\u00f5es sobre o projeto<\/h2>\n<p>O posicionamento de rolamentos implica conciliar v\u00e1rias exig\u00eancias conflitantes ao mesmo tempo.<\/p>\n<h3>Restri\u00e7\u00f5es mec\u00e2nicas<\/h3>\n<ul>\n<li>Dimens\u00f5es da estrutura e da carca\u00e7a da m\u00e1quina.<\/li>\n<li>A localiza\u00e7\u00e3o dos componentes do rotor, como impulsores e acoplamentos.<\/li>\n<li>Acesso para manuten\u00e7\u00e3o e montagem.<\/li>\n<li>Requisitos de acoplamento e transmiss\u00e3o.<\/li>\n<\/ul>\n<h3>Requisitos din\u00e2micos do rotor<\/h3>\n<ul>\n<li><strong>Separa\u00e7\u00e3o por velocidade cr\u00edtica:<\/strong> posicione os rolamentos de modo que as velocidades cr\u00edticas fiquem a \u00b120\u201330% da velocidade de opera\u00e7\u00e3o.<\/li>\n<li><strong>R\u00edgido versus flex\u00edvel:<\/strong> uma extens\u00e3o menor mant\u00e9m o rotor <a href=\"https:\/\/vibromera.eu\/pt_br\/glossary\/rigid-rotor\/\">r\u00edgido<\/a>; uma extens\u00e3o maior pode obrigar ao funcionamento como um rotor flex\u00edvel.<\/li>\n<li><strong>Limites de deflex\u00e3o:<\/strong> mantenha a deflex\u00e3o m\u00e1xima abaixo do ponto em que ela cause atrito ou danifique a veda\u00e7\u00e3o.<\/li>\n<li><strong>Cargas suportadas:<\/strong> v\u00e3os mais longos reduzem as cargas est\u00e1ticas nos rolamentos para um determinado peso do rotor.<\/li>\n<\/ul>\n<h3>Fabrica\u00e7\u00e3o e montagem<\/h3>\n<ul>\n<li>V\u00e3os mais longos oferecem mais espa\u00e7o para o equil\u00edbrio e a montagem.<\/li>\n<li>O alinhamento dos rolamentos \u00e9 mais f\u00e1cil quando a extens\u00e3o est\u00e1 aberta e vis\u00edvel.<\/li>\n<li>As v\u00e3os mais curtos s\u00e3o mais compactos e requerem menos material para a estrutura.<\/li>\n<\/ul>\n<h2>5. Efeito sobre as cargas dos rolamentos<\/h2>\n<h3>Distribui\u00e7\u00e3o da carga est\u00e1tica<\/h3>\n<p>O v\u00e3o do rolamento determina como o peso e as for\u00e7as do rotor s\u00e3o distribu\u00eddos entre os dois apoios:<\/p>\n<ul>\n<li><strong>Longer span:<\/strong> menores cargas nos rolamentos para o mesmo peso do rotor, gra\u00e7as ao bra\u00e7o de alavanca mais longo.<\/li>\n<li><strong>Shorter span:<\/strong> cargas individuais mais elevadas, mas com uma distribui\u00e7\u00e3o mais uniforme.<\/li>\n<li><strong>Overhung loads:<\/strong> o efeito de um <a href=\"https:\/\/vibromera.eu\/pt_br\/glossary\/overhung-rotor\/\">componente saliente<\/a> \u00e9 amplificado \u00e0 medida que a extens\u00e3o aumenta.<\/li>\n<\/ul>\n<h3>Cargas din\u00e2micas decorrentes de desequil\u00edbrio<\/h3>\n<ul>\n<li>Cargas din\u00e2micas de apoio de <a href=\"https:\/\/vibromera.eu\/pt_br\/glossary\/unbalance\/\">desequil\u00edbrio<\/a> depende da deflex\u00e3o.<\/li>\n<li>Uma extens\u00e3o maior permite uma maior deflex\u00e3o, o que pode reduzir a carga transmitida ao rolamento.<\/li>\n<li>Mas essa mesma deflex\u00e3o aumenta a amplitude da vibra\u00e7\u00e3o.<\/li>\n<li>O projetista, portanto, faz uma escolha entre a vida \u00fatil do rolamento e o n\u00edvel de vibra\u00e7\u00e3o \u2014 um equil\u00edbrio que um bom <a href=\"https:\/\/vibromera.eu\/pt_br\/glossary\/balanceamento\/\">balanceamento<\/a> favorece a todos ao eliminar a pr\u00f3pria excita\u00e7\u00e3o.<\/li>\n<\/ul>\n<h2>6. Rela\u00e7\u00e3o com o di\u00e2metro do eixo<\/h2>\n<p>O v\u00e3o nunca \u00e9 escolhido isoladamente; ele deve ser considerado em conjunto com o di\u00e2metro do eixo.<\/p>\n<h3>Rela\u00e7\u00e3o comprimento\/di\u00e2metro (L\/D)<\/h3>\n<ul>\n<li><strong>L\/D &lt; 5:<\/strong> muito r\u00edgido, sendo comum o comportamento de rotor r\u00edgido.<\/li>\n<li><strong>5 &lt; L\/D &lt; 20:<\/strong> flexibilidade moderada, abrangendo a maior parte das m\u00e1quinas industriais.<\/li>\n<li><strong>L\/D &gt; 20:<\/strong> altamente flex\u00edvel, onde as considera\u00e7\u00f5es relativas ao rotor flex\u00edvel se tornam essenciais.<\/li>\n<\/ul>\n<h3>Estrat\u00e9gia de otimiza\u00e7\u00e3o<\/h3>\n<ul>\n<li><strong>Fixed span:<\/strong> aumentar o di\u00e2metro para elevar as velocidades cr\u00edticas.<\/li>\n<li><strong>Fixed diameter:<\/strong> diminuir o intervalo para aument\u00e1-los.<\/li>\n<li><strong>Otimiza\u00e7\u00e3o combinada:<\/strong> ajustar ambos para atingir simultaneamente as metas de velocidade cr\u00edtica e deflex\u00e3o.<\/li>\n<li><strong>Limite pr\u00e1tico:<\/strong> As restri\u00e7\u00f5es de espa\u00e7o geralmente fixam um par\u00e2metro, deixando o outro como a \u00fanica vari\u00e1vel livre.<\/li>\n<\/ul>\n<h2>7. Configura\u00e7\u00f5es com m\u00faltiplos rolamentos<\/h2>\n<h3>Suporte padr\u00e3o com dois rolamentos<\/h3>\n<ul>\n<li>A disposi\u00e7\u00e3o mais comum.<\/li>\n<li>Uma \u00fanica viga define o sistema.<\/li>\n<li>A an\u00e1lise e o projeto s\u00e3o simples.<\/li>\n<\/ul>\n<h3>Sistemas com m\u00faltiplos rolamentos<\/h3>\n<p>Os rotores com mais de dois rolamentos apresentam mais de um v\u00e3o a ser considerado:<\/p>\n<ul>\n<li><strong>Three bearings:<\/strong> duas se\u00e7\u00f5es \u2014 por exemplo, um motor com um rolamento central adicional.<\/li>\n<li><strong>Four or more:<\/strong> v\u00e1rios v\u00e3os que exigem uma an\u00e1lise mais complexa.<\/li>\n<li><strong>Effective span:<\/strong> para trabalhos com vibra\u00e7\u00e3o, cada <a href=\"https:\/\/vibromera.eu\/pt_br\/glossary\/mode-shape\/\">forma modal<\/a> pode ter seu pr\u00f3prio intervalo efetivo.<\/li>\n<li><strong>Din\u00e2mica acoplada:<\/strong> As vigas interagem entre si, determinando o comportamento geral do sistema.<\/li>\n<\/ul>\n<h2>8. Medi\u00e7\u00e3o, verifica\u00e7\u00e3o e adapta\u00e7\u00f5es<\/h2>\n<h3>Verifica\u00e7\u00e3o da obra conclu\u00edda<\/h3>\n<ul>\n<li>Me\u00e7a a extens\u00e3o real do apoio durante a instala\u00e7\u00e3o.<\/li>\n<li>Verifique se est\u00e1 de acordo com as especifica\u00e7\u00f5es do projeto, normalmente com uma toler\u00e2ncia de \u00b15 mm.<\/li>\n<li>Registre as dimens\u00f5es reais para os c\u00e1lculos din\u00e2micos do rotor.<\/li>\n<li>Verifique o alinhamento das linhas centrais dos rolamentos.<\/li>\n<\/ul>\n<h3>Efeito das varia\u00e7\u00f5es na instala\u00e7\u00e3o<\/h3>\n<ul>\n<li>Erros na posi\u00e7\u00e3o dos rolamentos alteram as velocidades cr\u00edticas previstas.<\/li>\n<li>O desalinhamento gera cargas adicionais.<\/li>\n<li>O assentamento da funda\u00e7\u00e3o pode alterar a extens\u00e3o efetiva ao longo do tempo.<\/li>\n<li>A dilata\u00e7\u00e3o t\u00e9rmica pode alterar a extens\u00e3o efetiva \u00e0 temperatura de opera\u00e7\u00e3o.<\/li>\n<\/ul>\n<h3>Quando modificar o v\u00e3o do apoio<\/h3>\n<p>O reposicionamento de um rolamento \u00e9 considerado quando:<\/p>\n<ul>\n<li>A m\u00e1quina est\u00e1 operando muito perto da velocidade cr\u00edtica.<\/li>\n<li>Deflex\u00e3o excessiva do eixo causando atrito ou problemas de veda\u00e7\u00e3o<\/li>\n<li>As cargas nos rolamentos s\u00e3o muito elevadas ou est\u00e3o distribu\u00eddas de forma desigual.<\/li>\n<li>O projeto alterna entre o funcionamento com rotor r\u00edgido e com rotor flex\u00edvel.<\/li>\n<\/ul>\n<h3>Desafios da modifica\u00e7\u00e3o da extens\u00e3o<\/h3>\n<ul>\n<li><strong>Mudan\u00e7as estruturais:<\/strong> pode ser necess\u00e1rio fazer modifica\u00e7\u00f5es no chassi ou na carca\u00e7a.<\/li>\n<li><strong>Impacto no alinhamento:<\/strong> A movimenta\u00e7\u00e3o de um rolamento afeta o alinhamento com o equipamento acionado.<\/li>\n<li><strong>Custo:<\/strong> As despesas significativas com modifica\u00e7\u00f5es devem ser justificadas pelos benef\u00edcios decorrentes.<\/li>\n<li><strong>Valida\u00e7\u00e3o:<\/strong> \u00c9 necess\u00e1rio realizar testes para confirmar a melhoria \u2014 incluindo uma nova verifica\u00e7\u00e3o do res\u00edduo <a href=\"https:\/\/vibromera.eu\/pt_br\/glossary\/vibration\/\">vibra\u00e7\u00e3o<\/a> ap\u00f3s a altera\u00e7\u00e3o. Um analisador port\u00e1til como o <a href=\"https:\/\/vibromera.eu\/pt_br\/produto\/balanset-1\/\">Conjunto de equil\u00edbrio-1a<\/a> facilita essa confirma\u00e7\u00e3o, registrando a vibra\u00e7\u00e3o dos rolamentos e o comportamento em velocidades cr\u00edticas no local, de modo que a moderniza\u00e7\u00e3o possa ser aprovada com base em dados medidos, e n\u00e3o apenas em previs\u00f5es.<\/li>\n<\/ul>\n<p>O v\u00e3o do rolamento \u00e9 um par\u00e2metro geom\u00e9trico fundamental que influencia profundamente o comportamento din\u00e2mico do rotor. Escolh\u00ea-lo adequadamente durante o projeto e verific\u00e1-lo com precis\u00e3o durante a instala\u00e7\u00e3o s\u00e3o essenciais para garantir a separa\u00e7\u00e3o da velocidade cr\u00edtica, n\u00edveis aceit\u00e1veis de vibra\u00e7\u00e3o e um funcionamento confi\u00e1vel a longo prazo, dos quais toda m\u00e1quina rotativa depende.<\/p>\n<hr>\n<p><a href=\"https:\/\/vibromera.eu\/pt_br\/glossary\/\">\u2190 Voltar ao \u00edndice principal<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Aprenda sobre o v\u00e3o entre os mancais, a dist\u00e2ncia entre os mancais de suporte do rotor que afeta criticamente a rigidez do eixo, as velocidades cr\u00edticas e as caracter\u00edsticas de deflex\u00e3o em m\u00e1quinas rotativas.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[109,111],"tags":[],"class_list":["post-52","glossary","type-glossary","status-publish","hentry","category-glossary","category-rotor-balancing"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/pt_br\/wp-json\/wp\/v2\/glossary\/52","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/pt_br\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/vibromera.eu\/pt_br\/wp-json\/wp\/v2\/types\/glossary"}],"version-history":[{"count":1,"href":"https:\/\/vibromera.eu\/pt_br\/wp-json\/wp\/v2\/glossary\/52\/revisions"}],"predecessor-version":[{"id":101422,"href":"https:\/\/vibromera.eu\/pt_br\/wp-json\/wp\/v2\/glossary\/52\/revisions\/101422"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/pt_br\/wp-json\/wp\/v2\/media?parent=52"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/pt_br\/wp-json\/wp\/v2\/categories?post=52"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/pt_br\/wp-json\/wp\/v2\/tags?post=52"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}