{"id":150,"date":"2025-10-31T00:25:51","date_gmt":"2025-10-31T00:25:51","guid":{"rendered":"https:\/\/vibromera.eu\/glossary\/journal-bearing\/"},"modified":"2026-05-23T22:51:58","modified_gmt":"2026-05-23T22:51:58","slug":"journal-bearing","status":"publish","type":"glossary","link":"https:\/\/vibromera.eu\/pt-br\/glossary\/journal-bearing\/","title":{"rendered":"O que \u00e9 um Mancal de Deslizamento? Suporte Hidrodin\u00e2mico"},"content":{"rendered":"<h1>Compreendendo os Mancais de Deslizamento<\/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=\"Portable balancer &#038; Vibration analyzer 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 full kit portable balancer and vibration analyzer\" 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=\"Portable balancer &#038; Vibration analyzer Balanset-1A\">Balanceador port\u00e1til &#038; 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\">&euro;<\/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\/150?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\/150?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=\"Balanset-1A vibration sensor close-up\" 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\">&euro;<\/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\/150?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\/150?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 \u00d3ptico (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 \u00d3ptico (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 \u00d3ptico (Tac\u00f4metro a Laser)\">Sensor \u00d3ptico (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\">&euro;<\/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\/150?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\/150?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=\"Vibromera rotor balancing kit: carry case, multi-channel signal conditioner, handheld analyzer, magnetic base, vibration sensors, and coiled cables.\" 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\">&euro;<\/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\/150?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\/150?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=\"Suporte Magn\u00e9tico Insize-60-kgf\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Magnet base.\" 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=\"Suporte Magn\u00e9tico Insize-60-kgf\">Suporte Magn\u00e9tico Insize-60-kgf<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">&euro;<\/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\/150?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\/150?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\">&euro;<\/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\/150?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\/150?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 \u201cBalanset-1A\u201d 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=\"Balanset-1A kit contents with interface unit, sensors, tachometer and accessories\" 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 \u201cBalanset-1A\u201d OEM\">Balanceador din\u00e2mico \u201cBalanset-1A\u201d 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\">&euro;<\/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\/150?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\/150?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>A <strong>mancal de deslizamento<\/strong> \u2014 tamb\u00e9m chamado de mancal de deslizamento, mancal de bucha ou mancal de filme fluido \u2014 suporta um eixo rotativo sobre um filme fino e pressurizado de lubrificante, em vez de sobre elementos rolantes. A por\u00e7\u00e3o rotativa do eixo dentro do mancal \u00e9 o <em>munh\u00e3o do eixo<\/em>; ele \u00e9 mantido afastado da superf\u00edcie estacion\u00e1ria do mancal por um filme de \u00f3leo hidrodin\u00e2mico que o pr\u00f3prio eixo gera ao arrastar o lubrificante para uma folga convergente em forma de cunha. Essa cunha pressurizada suporta toda a <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/rotor\/\">rotor<\/a> carga sem contato metal-metal. Como o filme de \u00f3leo tamb\u00e9m fornece generoso <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/damping\/\">amortecimento<\/a>, os mancais de deslizamento s\u00e3o a escolha natural para m\u00e1quinas de alta velocidade e alta carga \u2014 turbinas, geradores, grandes compressores \u2014 onde controlar <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/vibration\/\">vibra\u00e7\u00e3o<\/a> e estabilizar o rotor \u00e9 mais importante.<\/p>\n<h2>1. Defini\u00e7\u00e3o: O que \u00e9 um Mancal de Deslizamento?<\/h2>\n<p>Em um mancal de deslizamento, o eixo n\u00e3o toca o mancal na velocidade de opera\u00e7\u00e3o. Em vez disso, ele flutua, ligeiramente descentrado, sobre uma cunha de lubrificante com apenas dezenas de micr\u00f4metros de espessura. Esse \u00fanico fato o distingue de um rolamento de elementos rolantes, que suporta carga atrav\u00e9s de esferas ou rolos em contato de Hertz. As vantagens do mancal de deslizamento decorrem diretamente do filme de \u00f3leo: capacidade de carga muito alta, atrito extremamente baixo uma vez estabelecido o filme, opera\u00e7\u00e3o silenciosa e o amortecimento que torna poss\u00edvel operar grandes rotores suavemente atrav\u00e9s e acima de suas <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/critical-speed\/\">velocidades cr\u00edticas<\/a>. O comportamento do eixo e seus mancais juntos \u00e9 estudado como um <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/rotor-bearing-system\/\">sistema rotor-rolamento<\/a>, porque nenhum dos dois pode ser compreendido isoladamente.<\/p>\n<h2>2. Princ\u00edpio de Funcionamento: Lubrifica\u00e7\u00e3o Hidrodin\u00e2mica<\/h2>\n<h3>Como se Forma o Filme de \u00d3leo<\/h3>\n<p>O mancal de deslizamento depende da lubrifica\u00e7\u00e3o hidrodin\u00e2mica, que se desenvolve em uma sequ\u00eancia previs\u00edvel \u00e0 medida que o eixo atinge a velocidade:<\/p>\n<ol>\n<li><strong>Contato inicial:<\/strong> em repouso, o eixo assenta no fundo do furo sob seu pr\u00f3prio peso, com metal tocando metal.<\/li>\n<li><strong>In\u00edcio da rota\u00e7\u00e3o:<\/strong> \u00e0 medida que o eixo come\u00e7a a girar, a ades\u00e3o arrasta o lubrificante para a folga de claro.<\/li>\n<li><strong>Forma\u00e7\u00e3o da cunha:<\/strong> a geometria convergente entre o eixo e o furo espreme esse \u00f3leo para um espa\u00e7o em forma de cunha.<\/li>\n<li><strong>Gera\u00e7\u00e3o de press\u00e3o:<\/strong> o \u00f3leo for\u00e7ado para a cunha estreita desenvolve press\u00e3o hidrodin\u00e2mica.<\/li>\n<li><strong>Descolamento:<\/strong> uma vez que essa for\u00e7a de press\u00e3o excede o peso do eixo, o munh\u00e3o se eleva e desliza sobre um filme completo.<\/li>\n<li><strong>Regime permanente:<\/strong> o eixo flutua sobre o filme pressurizado, encontrando uma posi\u00e7\u00e3o de equil\u00edbrio deslocada do centro do furo, sem contato met\u00e1lico.<\/li>\n<\/ol>\n<p>A posi\u00e7\u00e3o em que o munh\u00e3o se assenta \u2014 sua excentricidade dentro da folga \u2014 n\u00e3o \u00e9 fixa. Ela muda com a carga e a velocidade, e esse equil\u00edbrio vari\u00e1vel \u00e9 a raiz do complexo comportamento din\u00e2mico do mancal descrito abaixo.<\/p>\n<h3>Espessura do Filme de \u00d3leo<\/h3>\n<ul>\n<li>A espessura m\u00ednima t\u00edpica do filme \u00e9 <strong>10\u2013100 micr\u00f4metros<\/strong> (0,0004\u20130,004 pol) \u2014 extremamente fina, mas suficiente para manter as superf\u00edcies separadas.<\/li>\n<li>O filme n\u00e3o \u00e9 uniforme: varia ao redor da circunfer\u00eancia, atingindo seu m\u00ednimo no ponto de maior aproxima\u00e7\u00e3o entre o munh\u00e3o e o furo.<\/li>\n<li>A espessura depende da velocidade, carga, viscosidade do lubrificante e <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/bearing-clearance\/\">folga do rolamento<\/a> \u2014 aumente a velocidade ou a viscosidade e o filme engrossa; aumente a carga e ele afinar.<\/li>\n<li>Como a viscosidade cai quando o \u00f3leo esquenta, a espessura do filme tamb\u00e9m \u00e9 sens\u00edvel \u00e0 temperatura de opera\u00e7\u00e3o, raz\u00e3o pela qual a temperatura do \u00f3leo de alimenta\u00e7\u00e3o \u00e9 um par\u00e2metro monitorado em m\u00e1quinas grandes.<\/li>\n<\/ul>\n<h2>3. Tipos de Mancal de Deslizamento<\/h2>\n<h3>Cil\u00edndrico Simples (Munh\u00e3o Completo)<\/h3>\n<ul>\n<li>O design mais simples: um furo cil\u00edndrico liso com um sulco de alimenta\u00e7\u00e3o de \u00f3leo e um \u00e2ngulo de envolvimento completo de 360\u00b0.<\/li>\n<li>Boa capacidade de carga, mas o filme sim\u00e9trico o torna propenso \u00e0 instabilidade \u2014 <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/oil-whirl\/\">oil whirl<\/a> \u2014 em alta velocidade e carga leve.<\/li>\n<li>Comum em motores, bombas e equipamentos industriais gerais onde as velocidades s\u00e3o moderadas.<\/li>\n<\/ul>\n<h3>Mancais de Arco Parcial<\/h3>\n<ul>\n<li>A superf\u00edcie do mancal cobre apenas parte da circunfer\u00eancia, tipicamente 120\u2013180\u00b0.<\/li>\n<li>Mais leve e exigindo menos fluxo de \u00f3leo, mas oferecendo menor rigidez que um munh\u00e3o completo.<\/li>\n<li>Adequado para aplica\u00e7\u00f5es de carga leve onde a dire\u00e7\u00e3o da carga \u00e9 bem definida.<\/li>\n<\/ul>\n<h3>Mancais de Patins Inclin\u00e1veis<\/h3>\n<ul>\n<li>A superf\u00edcie \u00e9 dividida em v\u00e1rios patins independentes, cada um livre para pivotar.<\/li>\n<li>Cada patim desenvolve sua pr\u00f3pria cunha hidrodin\u00e2mica, o que suprime o acoplamento cruzado que impulsiona o oil whirl.<\/li>\n<li>Inerentemente est\u00e1veis contra whirl e whip, s\u00e3o o padr\u00e3o da ind\u00fastria para turbom\u00e1quinas de alta velocidade.<\/li>\n<li>Mais caros e complexos, mas com caracter\u00edsticas din\u00e2micas marcadamente superiores.<\/li>\n<\/ul>\n<h3>Mancas com Barragem de Press\u00e3o e Deslocados<\/h3>\n<ul>\n<li>Mancas cil\u00edndricos modificados com caracter\u00edsticas geom\u00e9tricas \u2014 ranhuras, uma barragem em degrau ou uma divis\u00e3o deslocada (furo tipo lim\u00e3o) \u2014 adicionadas para melhorar a estabilidade.<\/li>\n<li>Essas caracter\u00edsticas carregam deliberadamente o filme para aumentar o amortecimento efetivo.<\/li>\n<li>S\u00e3o um compromisso pr\u00e1tico entre o mancal cil\u00edndrico simples e o projeto de patas basculantes mais caro.<\/li>\n<\/ul>\n<p>Onde mesmo um mancal de patas basculantes n\u00e3o consegue fornecer amortecimento suficiente para um rotor flex\u00edvel, os projetistas podem adicionar um <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/squeeze-film-damper\/\">amortecedor de filme espremido<\/a> em s\u00e9rie com o mancal para dissipar energia adicional.<\/p>\n<h2>4. Caracter\u00edsticas Din\u00e2micas<\/h2>\n<h3>Rigidez<\/h3>\n<p>A rigidez do mancal de deslizamento n\u00e3o \u00e9 um \u00fanico n\u00famero; \u00e9 um conjunto de coeficientes dependentes da velocidade e da carga:<\/p>\n<ul>\n<li><strong>Baixa velocidade:<\/strong> baixo <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/stiffness\/\">rigidez<\/a> \u2014 a posi\u00e7\u00e3o do munh\u00e3o muda muito conforme a carga varia.<\/li>\n<li><strong>Alta velocidade:<\/strong> maior rigidez \u00e0 medida que o campo de press\u00e3o hidrodin\u00e2mica se desenvolve totalmente.<\/li>\n<li><strong>Varia\u00e7\u00e3o direcional:<\/strong> a rigidez difere nas dire\u00e7\u00f5es horizontal e vertical, portanto o mancal responde de forma anisotr\u00f3pica.<\/li>\n<li><strong>Rigidez cruzada:<\/strong> uma deflex\u00e3o em uma dire\u00e7\u00e3o produz uma for\u00e7a em \u00e2ngulo reto com ela. Esse acoplamento cruzado \u00e9 precisamente o mecanismo que pode bombear energia para uma \u00f3rbita de whirl e desencadear <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/rotor-instability\/\">instabilidade do rotor<\/a>.<\/li>\n<\/ul>\n<h3>Amortecimento<\/h3>\n<p>A grande virtude do filme \u00e9 o amortecimento que ele fornece:<\/p>\n<ul>\n<li>A energia \u00e9 dissipada pelo cisalhamento viscoso do \u00f3leo enquanto o munh\u00e3o se move dentro da folga.<\/li>\n<li>O amortecimento aumenta com a velocidade e com a viscosidade do \u00f3leo.<\/li>\n<li>\u00c9 o que limita a amplitude de vibra\u00e7\u00e3o quando o rotor passa por uma <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/critical-speed\/\">velocidade cr\u00edtica<\/a>.<\/li>\n<li>Amortecimento adequado \u00e9 essencial para impedir que instabilidades auto-excitadas cres\u00e7am sem limite.<\/li>\n<\/ul>\n<h3>Depend\u00eancia da velocidade<\/h3>\n<p>Como a rigidez e o amortecimento mudam com a velocidade, tudo o que depende deles tamb\u00e9m muda:<\/p>\n<ul>\n<li>A rigidez aumenta com a velocidade.<\/li>\n<li>O amortecimento aumenta com a velocidade.<\/li>\n<li>As <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/natural-frequency\/\">frequ\u00eancias naturais<\/a> aumentam com a velocidade.<\/li>\n<li>As velocidades cr\u00edticas, portanto, deslocam-se para cima \u00e0 medida que a m\u00e1quina acelera \u2014 um efeito tornado vis\u00edvel em um <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/campbell-diagram\/\">Diagrama de Campbell<\/a>.<\/li>\n<\/ul>\n<h2>5. Vantagens e Limita\u00e7\u00f5es<\/h2>\n<p>O filme de \u00f3leo \u00e9 respons\u00e1vel tanto pelas excelentes qualidades do mancal de deslizamento quanto por suas exig\u00eancias particulares.<\/p>\n<ul>\n<li><strong>Alta capacidade de carga:<\/strong> pode suportar rotores muito pesados que esmagariam um rolamento de elementos rolantes.<\/li>\n<li><strong>Capacidade de alta velocidade:<\/strong> adequado para velocidades de at\u00e9 50.000 rpm e al\u00e9m.<\/li>\n<li><strong>Baixo atrito em velocidade:<\/strong> uma vez estabelecido o filme hidrodin\u00e2mico, o coeficiente de atrito \u00e9 muito baixo (cerca de 0,001\u20130,003).<\/li>\n<li><strong>Excelente amortecimento:<\/strong> controla a vibra\u00e7\u00e3o atrav\u00e9s das velocidades cr\u00edticas e ajuda a estabilizar o rotor.<\/li>\n<li><strong>Opera\u00e7\u00e3o silenciosa:<\/strong> sem passagem de elementos rolantes, n\u00e3o h\u00e1 ru\u00eddo de elementos rolantes.<\/li>\n<li><strong>Resist\u00eancia a choques:<\/strong> o filme de \u00f3leo amortece cargas transit\u00f3rias e de impacto.<\/li>\n<li><strong>Longa vida \u00fatil:<\/strong> sem contato met\u00e1lico em servi\u00e7o, o desgaste \u00e9 m\u00ednimo e d\u00e9cadas de opera\u00e7\u00e3o s\u00e3o poss\u00edveis.<\/li>\n<li><strong>Projeto b\u00e1sico simples:<\/strong> o tipo cil\u00edndrico simples \u00e9 mecanicamente simples e econ\u00f4mico.<\/li>\n<\/ul>\n<p>Em contrapartida, est\u00e3o os desafios pr\u00e1ticos:<\/p>\n<ul>\n<li><strong>Alto atrito na partida:<\/strong> n\u00e3o h\u00e1 filme em repouso, portanto a m\u00e1quina deve superar o torque de partida e o desgaste breve de lubrifica\u00e7\u00e3o de fronteira em cada partida.<\/li>\n<li><strong>Sistema de lubrifica\u00e7\u00e3o necess\u00e1rio:<\/strong> um fornecimento cont\u00ednuo de \u00f3leo limpo, refrigerado e corretamente pressurizado \u00e9 obrigat\u00f3rio; <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/bearing-lubrication\/\">lubrifica\u00e7\u00e3o do mancal<\/a> n\u00e3o \u00e9 opcional, mas central para o projeto.<\/li>\n<li><strong>Risco de whirl e whip:<\/strong> os mancais cil\u00edndricos lisos s\u00e3o suscet\u00edveis ao oil whirl e, perto do dobro de uma velocidade cr\u00edtica, ao <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/shaft-whip\/\">shaft whip<\/a>.<\/li>\n<li><strong>Menor rigidez em baixa velocidade:<\/strong> o filme flex\u00edvel torna o mancal mais macio que um rolamento de elementos rolantes em baixa velocidade, retardando a resposta.<\/li>\n<li><strong>Sensibilidade \u00e0 temperatura:<\/strong> o desempenho acompanha a temperatura do \u00f3leo por meio de seu efeito na viscosidade.<\/li>\n<li><strong>Sensibilidade \u00e0 contamina\u00e7\u00e3o:<\/strong> part\u00edculas duras podem riscar a superf\u00edcie macia de babbit ou bloquear as passagens de \u00f3leo.<\/li>\n<li><strong>Sem restri\u00e7\u00e3o axial:<\/strong> um mancal de deslizamento posiciona o eixo apenas radialmente; cargas axiais precisam de um <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/thrust-bearing\/\">mancal de empuxo<\/a>.<\/li>\n<\/ul>\n<h2>6. Onde os Mancais de Deslizamento S\u00e3o Usados<\/h2>\n<p>Os mancais de deslizamento s\u00e3o padr\u00e3o sempre que os rotores s\u00e3o grandes, r\u00e1pidos ou ambos:<\/p>\n<ul>\n<li><strong>Turbinas a vapor e a g\u00e1s:<\/strong> unidades de gera\u00e7\u00e3o de energia de v\u00e1rios megawatts.<\/li>\n<li><strong>Grandes geradores:<\/strong> geradores s\u00edncronos em usinas de energia.<\/li>\n<li><strong>Compressores centr\u00edfugos:<\/strong> m\u00e1quinas industriais de alta velocidade e alta carga.<\/li>\n<li><strong>Grandes motores el\u00e9tricos:<\/strong> motores acima de aproximadamente 500 cv frequentemente os utilizam.<\/li>\n<li><strong>Propuls\u00e3o mar\u00edtima:<\/strong> mancais do eixo da h\u00e9lice e do tubo de popa.<\/li>\n<li><strong>M\u00e1quinas de papel:<\/strong> os grandes rolos que sustentam a folha.<\/li>\n<li><strong>Motores de combust\u00e3o interna:<\/strong> mancais principais do virabrequim e dos bra\u00e7os oscilantes.<\/li>\n<\/ul>\n<h2>7. Rela\u00e7\u00e3o com a Din\u00e2mica de Rotores e o Balanceamento em Campo<\/h2>\n<p>Como sua rigidez e amortecimento definem grande parte do comportamento de um rotor, os mancais de deslizamento est\u00e3o no centro da <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/rotor-dynamics\/\">din\u00e2mica de rotores<\/a>:<\/p>\n<ul>\n<li><strong>Posicionamento das velocidades cr\u00edticas:<\/strong> a rigidez e o amortecimento do mancal determinam onde as velocidades cr\u00edticas se situam e qu\u00e3o altos s\u00e3o os picos de vibra\u00e7\u00e3o nesses pontos.<\/li>\n<li><strong>Estabilidade:<\/strong> o tipo de mancal decide em grande parte a suscetibilidade ao oil whirl e ao shaft whip; as frequ\u00eancias sub-s\u00edncronas caracter\u00edsticas que esses fen\u00f4menos produzem podem ser estimadas com uma <a href=\"https:\/\/vibromera.eu\/pt-br\/calculators\/journal-bearing-frequencies\/\">calculadora de frequ\u00eancias de defeito de mancais de deslizamento<\/a>.<\/li>\n<li><strong>Mapeamento de frequ\u00eancias:<\/strong> um diagrama de Campbell mostra como as frequ\u00eancias naturais migram com a velocidade \u00e0 medida que a rigidez do mancal muda.<\/li>\n<li><strong>Resposta ao balanceamento:<\/strong> as caracter\u00edsticas do mancal moldam o <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/influence-coefficient\/\">coeficientes de influ\u00eancia<\/a> que governa como o rotor responde a uma massa de corre\u00e7\u00e3o.<\/li>\n<\/ul>\n<p>Esse \u00faltimo ponto \u00e9 onde o mancal encontra a manuten\u00e7\u00e3o di\u00e1ria. Quando uma turbina ou compressor operando em mancais de deslizamento apresenta uma resposta elevada em 1\u00d7 <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/unbalance\/\">desbalanceamento<\/a> ele \u00e9 balanceado no local, em seus pr\u00f3prios mancais, na velocidade de opera\u00e7\u00e3o. Um analisador port\u00e1til de dois canais, como o <a href=\"https:\/\/vibromera.eu\/pt-br\/produto\/balanset-1\/\">Balanset-1A<\/a> mede a amplitude s\u00edncrona e a <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/phase\/\">fase<\/a> em cada mancal, calcula os coeficientes de influ\u00eancia do rotor a partir de uma corrida de teste e determina as massas de corre\u00e7\u00e3o necess\u00e1rias \u2014 capturando a resposta real do sistema rotor-mancal montado, incluindo a pr\u00f3pria rigidez e amortecimento do filme que uma m\u00e1quina de balanceamento nunca poderia reproduzir. Verificado contra o grau de balanceamento ISO 21940-11 apropriado, o resultado reflete como a m\u00e1quina realmente se comporta em servi\u00e7o.<\/p>\n<p>Os mancais de deslizamento s\u00e3o uma tecnologia madura e sofisticada que permanece insubstitu\u00edvel em m\u00e1quinas cr\u00edticas de alto desempenho. Sua combina\u00e7\u00e3o \u00fanica de capacidade de carga, capacidade de velocidade e amortecimento justifica a complexidade de sua lubrifica\u00e7\u00e3o e comportamento din\u00e2mico, e um entendimento pr\u00e1tico desse comportamento \u00e9 essencial para qualquer pessoa que diagnostique ou balanceie grandes equipamentos rotativos.<\/p>\n<hr>\n<p><a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/\">\u2190 Voltar ao \u00cdndice Principal<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Learn about journal bearings, fluid-film bearings that support rotating shafts on a pressurized oil wedge, providing high load capacity and damping for rotating machinery.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[109,110],"tags":[],"class_list":["post-150","glossary","type-glossary","status-publish","hentry","category-glossary","category-vibration-diagnostics"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/pt-br\/wp-json\/wp\/v2\/glossary\/150","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\/150\/revisions"}],"predecessor-version":[{"id":101389,"href":"https:\/\/vibromera.eu\/pt-br\/wp-json\/wp\/v2\/glossary\/150\/revisions\/101389"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/pt-br\/wp-json\/wp\/v2\/media?parent=150"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/pt-br\/wp-json\/wp\/v2\/categories?post=150"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/pt-br\/wp-json\/wp\/v2\/tags?post=150"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}