{"id":245,"date":"2025-10-31T00:25:51","date_gmt":"2025-10-31T00:25:51","guid":{"rendered":"https:\/\/vibromera.eu\/glossary\/spalling\/"},"modified":"2026-05-23T22:54:09","modified_gmt":"2026-05-23T22:54:09","slug":"spalling","status":"publish","type":"glossary","link":"https:\/\/vibromera.eu\/da\/glossary\/spalling\/","title":{"rendered":"Hvad er afskalning i rullelejer?"},"content":{"rendered":"<h1>Forst\u00e5else af afskalning i rullelejer<\/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\/da\/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\/da\/product\/balanset-1\/\" title=\"B\u00e6rbart afbalanceringsapparat og vibrationsanalysator 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 komplet s\u00e6t med b\u00e6rbar afbalanceringsenhed og vibrationsanalysator\" 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\/da\/product-category\/devices\/\" rel=\"tag\">Enheder<\/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\/da\/product\/balanset-1\/\" title=\"B\u00e6rbart afbalanceringsapparat og vibrationsanalysator Balanset-1A\">B\u00e6rbart afbalanceringsapparat og vibrationsanalysator 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> + moms (hvis relevant)<\/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=\"\/da\/wp-json\/wp\/v2\/glossary\/245?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=\"Tilf\u00f8j til kurv\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Tilf\u00f8j til kurv\" 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=\"\/da\/wp-json\/wp\/v2\/glossary\/245?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=\"L\u00e6g i kurv: \u201cPortable balancer &amp; Vibration analyzer Balanset-1A\u201d\" rel=\"nofollow\" data-success_message=\"\u201cPortable balancer &amp; Vibration analyzer Balanset-1A\u201d er blevet tilf\u00f8jet til din kurv\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Tilf\u00f8j til kurv<\/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\/da\/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\/da\/product\/vibration-sensor\/\" title=\"Vibrationssensor\">\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 vibrationssensor i n\u00e6rbillede\" 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\/da\/product-category\/parts\/\" rel=\"tag\">Dele<\/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\/da\/product\/vibration-sensor\/\" title=\"Vibrationssensor\">Vibrationssensor<\/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> + moms (hvis relevant)<\/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=\"\/da\/wp-json\/wp\/v2\/glossary\/245?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=\"Tilf\u00f8j til kurv\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Tilf\u00f8j til kurv\" 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=\"\/da\/wp-json\/wp\/v2\/glossary\/245?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=\"L\u00e6g i kurv: \u201cVibration sensor\u201d\" rel=\"nofollow\" data-success_message=\"\u201cVibration sensor\u201d er blevet tilf\u00f8jet til din kurv\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Tilf\u00f8j til kurv<\/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\/da\/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\/da\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Optisk sensor (laser-tachometer)\">\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=\"Optisk sensor (laser-tachometer)\" 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\/da\/product-category\/parts\/\" rel=\"tag\">Dele<\/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\/da\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Optisk sensor (laser-tachometer)\">Optisk sensor (laser-tachometer)<\/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> + moms (hvis relevant)<\/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=\"\/da\/wp-json\/wp\/v2\/glossary\/245?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=\"Tilf\u00f8j til kurv\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Tilf\u00f8j til kurv\" 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=\"\/da\/wp-json\/wp\/v2\/glossary\/245?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=\"L\u00e6g i kurv: \u201cOptical Sensor (Laser Tachometer)\u201d\" rel=\"nofollow\" data-success_message=\"\u201cOptical Sensor (Laser Tachometer)\u201d er blevet tilf\u00f8jet til din kurv\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Tilf\u00f8j til kurv<\/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\/da\/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\/da\/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 rotorbalanceringss\u00e6t: b\u00e6retaske, flerkanals signalbehandler, h\u00e5ndholdt analysator, magnetisk base, vibrationssensorer og spiralkabler.\" 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\/da\/product-category\/devices\/\" rel=\"tag\">Enheder<\/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\/da\/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> + moms (hvis relevant)<\/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=\"\/da\/wp-json\/wp\/v2\/glossary\/245?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=\"Tilf\u00f8j til kurv\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Tilf\u00f8j til kurv\" 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=\"\/da\/wp-json\/wp\/v2\/glossary\/245?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=\"L\u00e6g i kurv: \u201cBalanset-4\u201d\" rel=\"nofollow\" data-success_message=\"\u201cBalanset-4\u201d er blevet tilf\u00f8jet til din kurv\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Tilf\u00f8j til kurv<\/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\/da\/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\/da\/product\/magnet-stand\/\" title=\"Magnetisk stativ 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=\"Magnetbase.\" 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\/da\/product-category\/parts\/\" rel=\"tag\">Dele<\/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\/da\/product\/magnet-stand\/\" title=\"Magnetisk stativ Insize-60-kgf\">Magnetisk stativ 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> + moms (hvis relevant)<\/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=\"\/da\/wp-json\/wp\/v2\/glossary\/245?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=\"Tilf\u00f8j til kurv\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Tilf\u00f8j til kurv\" 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=\"\/da\/wp-json\/wp\/v2\/glossary\/245?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=\"L\u00e6g i kurv: \u201cMagnetic Stand Insize-60-kgf\u201d\" rel=\"nofollow\" data-success_message=\"\u201cMagnetic Stand Insize-60-kgf\u201d er blevet tilf\u00f8jet til din kurv\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Tilf\u00f8j til kurv<\/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\/da\/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\/da\/product\/reflective-tape\/\" title=\"Reflekterende tape\">\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=\"Reflekterende tape\" 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\/da\/product-category\/parts\/\" rel=\"tag\">Dele<\/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\/da\/product\/reflective-tape\/\" title=\"Reflekterende tape\">Reflekterende tape<\/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> + moms (hvis relevant)<\/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=\"\/da\/wp-json\/wp\/v2\/glossary\/245?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=\"Tilf\u00f8j til kurv\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Tilf\u00f8j til kurv\" 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=\"\/da\/wp-json\/wp\/v2\/glossary\/245?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=\"L\u00e6g i kurv: \u201cReflective tape\u201d\" rel=\"nofollow\" data-success_message=\"\u201cReflective tape\u201d er blevet tilf\u00f8jet til din kurv\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Tilf\u00f8j til kurv<\/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\/da\/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\/da\/product\/dynamic-balancer-balanset-1a\/\" title=\"Dynamisk balancer &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=\"Balanset-1A-s\u00e6t med interface-enhed, sensorer, omdrejningst\u00e6ller og tilbeh\u00f8r\" 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\/da\/product-category\/devices\/\" rel=\"tag\">Enheder<\/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\/da\/product\/dynamic-balancer-balanset-1a\/\" title=\"Dynamisk balancer &quot;Balanset-1A&quot; OEM\">Dynamisk balancer \"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> + moms (hvis relevant)<\/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=\"\/da\/wp-json\/wp\/v2\/glossary\/245?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=\"Tilf\u00f8j til kurv\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Tilf\u00f8j til kurv\" 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=\"\/da\/wp-json\/wp\/v2\/glossary\/245?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=\"L\u00e6g i kurv: \u201cDynamic balancer \u201cBalanset-1A\u201d OEM\u201d\" rel=\"nofollow\" data-success_message=\"\u201cDynamic balancer \u201cBalanset-1A\u201d OEM\u201d er blevet tilf\u00f8jet til din kurv\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Tilf\u00f8j til kurv<\/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>Afskalning<\/strong> \u2014 ogs\u00e5 kaldet afskalning, afskalning eller huller, n\u00e5r det er sm\u00e5t \u2014 er lokal afskalning, afskalning eller brud p\u00e5 materialet fra overfladen af et lejes l\u00f8bebaner eller rullende elementer for\u00e5rsaget af tr\u00e6thed ved rullende kontakt. En afskalning fremst\u00e5r som et krater eller et hul, hvor en flage af h\u00e6rdet st\u00e5l er brudt af og efterlader en ru fordybning med skarpe kanter. Hver gang en kugle eller rulle ruller over dette krater, ud\u00f8ver den et lille mekanisk st\u00f8d, og disse gentagne st\u00f8d udbreder sig <a href=\"https:\/\/vibromera.eu\/da\/glossary\/vibration\/\">vibrationer<\/a> at predictable <a href=\"https:\/\/vibromera.eu\/da\/glossary\/bearing-fault-frequencies\/\">lejefejlfrekvenser<\/a> \u2014 det tegn, der g\u00f8r det muligt for en analytiker at opdage fejlen l\u00e6nge f\u00f8r lejet g\u00e5r i stykker.<\/p>\n<p>Afskalning er den mest almindelige og p\u00e5 en m\u00e5de den mest <em>normal<\/em> lejesvigtmekanisme: den repr\u00e6senterer den naturlige afslutning p\u00e5 et lejes udmattelseslevetid. Den adskiller sig fra <a href=\"https:\/\/vibromera.eu\/da\/glossary\/bearing-wear\/\">slid<\/a> (gradvis, spredt materialetab) og som f\u00f8lge af korrosion <a href=\"https:\/\/vibromera.eu\/da\/glossary\/pitting\/\">grubet\u00e6ring<\/a>. Det afg\u00f8rende er, at afskalning kan p\u00e5vises gennem <a href=\"https:\/\/vibromera.eu\/da\/glossary\/vibration-analysis\/\">Vibrationsanalyse<\/a> m\u00e5neder f\u00f8r lejet g\u00e5r helt i stykker, hvilket g\u00f8r det til et centralt m\u00e5l for enhver <a href=\"https:\/\/vibromera.eu\/da\/glossary\/predictive-maintenance\/\">pr\u00e6diktiv vedligeholdelse<\/a> program.<\/p>\n<h2>1. Den fysiske mekanisme bag afskalning<\/h2>\n<h3>Tr\u00e6thed ved rullende kontakt<\/h3>\n<p>Afskalning er ikke en pludselig h\u00e6ndelse, men det synlige h\u00f8jdepunkt i en lang udmattelsesproces:<\/p>\n<ol>\n<li><strong>Cyklisk belastning:<\/strong> Hver gang et rullende element passerer, ud\u00f8ver det en hertzsk kontaktbelastning p\u00e5 l\u00f8bebanen, typisk <strong>1000-3000 MPa<\/strong>, koncentreret p\u00e5 et kontaktomr\u00e5de, der er mindre end et riskorn.<\/li>\n<li><strong>Forskydningssp\u00e6nding under overfladen:<\/strong> Den st\u00f8rste vekslende forskydningssp\u00e6nding opst\u00e5r ikke ved overfladen, men lidt under den, normalt <strong>0.2\u20130.5 mm<\/strong> deep.<\/li>\n<li><strong>Brudindledning:<\/strong> Efter millioner \u2013 ofte milliarder \u2013 af sp\u00e6ndingscyklusser opst\u00e5r der en mikroskopisk revne ved en sp\u00e6ndingskoncentration under overfladen, ofte ved en ikke-metallisk indeslutning i st\u00e5let.<\/li>\n<li><strong>Revnedannelse:<\/strong> revnen vokser parallelt med overfladen og forgrener sig derefter b\u00e5de mod overfladen og dybere ind i materialet.<\/li>\n<li><strong>Materialeadskillelse:<\/strong> revnen i st\u00e5let ender med at isolere et stykke st\u00e5l.<\/li>\n<li><strong>Dannelse af afskalninger:<\/strong> at det isolerede materiale l\u00f8sner sig og efterlader det karakteristiske krater.<\/li>\n<\/ol>\n<p>Da skaden opst\u00e5r under overfladen, kan et leje v\u00e6re f\u00e5 dage fra at udvikle en synlig afskalning, selvom dets l\u00f8bebaner stadig ser spejlblanke ud for det blotte \u00f8je \u2014 og det er netop derfor, at tr\u00e6thedsskader under overfladen ikke kan ses ved en visuel inspektion, men kan registreres af en vibrationssensor.<\/p>\n<h3>Typiske tegn p\u00e5 afskalning<\/h3>\n<ul>\n<li><strong>St\u00f8rrelse:<\/strong> I starten 1\u20135 mm i diameter, vokser til 10\u201320 mm eller mere.<\/li>\n<li><strong>Dybde:<\/strong> 0,2\u20132 mm ind i den h\u00e6rdede overflade.<\/li>\n<li><strong>Form:<\/strong> et uregelm\u00e6ssigt krater med en ru bund og takkede kanter.<\/li>\n<li><strong>Beliggenhed:<\/strong> oftest p\u00e5 den ydre l\u00f8bering inden for belastningszonen.<\/li>\n<li><strong>Udseende:<\/strong> lys, skarp og metallisk i starten, men bliver m\u00f8rkere efterh\u00e5nden som processen skrider frem.<\/li>\n<\/ul>\n<h2>2. \u00c5rsager og medvirkende faktorer<\/h2>\n<h3>Normal udmattelseslevetid<\/h3>\n<ul>\n<li>Hvert leje har en begr\u00e6nset udmattelseslevetid \u2014 den <strong>L10-levetid<\/strong>, det punkt, hvor 90 % af en population forventes at overleve.<\/li>\n<li>Afskalning er den forventede tilstand ved levetidens afslutning; at denne tilstand indtr\u00e6der ved eller efter den beregnede L10-levetid er ikke en fejl, men et tegn p\u00e5, at konstruktionen er vellykket.<\/li>\n<li>Et velvalgt leje sikrer, at L10-levetiden klart overstiger den kr\u00e6vede levetid. Du kan beregne denne levetid ud fra belastning og hastighed ved hj\u00e6lp af vores <a href=\"https:\/\/vibromera.eu\/da\/calculators\/bearing-load\/\">Leje L10 levetidsberegner (ISO 281)<\/a>.<\/li>\n<\/ul>\n<h3>For tidlig afskalning<\/h3>\n<p>N\u00e5r der opst\u00e5r afskalninger l\u00e6nge f\u00f8r L10-levetiden er n\u00e5et, er der n\u00e6sten altid en ydre \u00e5rsag p\u00e5 spil:<\/p>\n<ul>\n<li><strong>Overbelastning:<\/strong> levetiden falder med belastningens tredje potens (levetid \u221d 1\/belastning\u00b3), s\u00e5 selv en beskeden overbelastning reducerer levetiden markant.<\/li>\n<li><strong>Mangelfuld sm\u00f8ring:<\/strong> En utilstr\u00e6kkelig film tillader, at uj\u00e6vnheder kommer i kontakt med hinanden, hvilket \u00f8ger overfladesp\u00e6ndingen.<\/li>\n<li><strong>Forurening:<\/strong> h\u00e5rde partikler beskadiger l\u00f8bebanen og skaber sp\u00e6ndingskoncentrationer, der udl\u00f8ser revnedannelse.<\/li>\n<li><strong>Sk\u00e6vstilling:<\/strong> Kantbelastning koncentrerer sp\u00e6ndingen i den ene ende af kontaktfladen.<\/li>\n<li><strong>Forkert installation:<\/strong> Monteringsskader medf\u00f8rer tidlige fejl.<\/li>\n<li><strong>Korrosion:<\/strong> Overfladegropene fungerer som f\u00e6rdige steder, hvor revner kan opst\u00e5.<\/li>\n<li><strong>Materielle fejl:<\/strong> indeslutninger i lejest\u00e5let.<\/li>\n<\/ul>\n<p>En ofte overset accelererende faktor er den dynamiske belastning fra d\u00e5rlig rotorafbalancering: rest <a href=\"https:\/\/vibromera.eu\/da\/glossary\/unbalance\/\">ubalance<\/a> tilf\u00f8jer en roterende kraft til den statiske lejebelastning, og gennem dette kubiske forhold kan selv en lille stigning i den dynamiske belastning drastisk forkorte udmattelseslevetiden. At holde rotorer godt afbalanceret er derfor en reel m\u00e5de at beskytte lejer p\u00e5, ikke blot et sp\u00f8rgsm\u00e5l om vibrationskomfort.<\/p>\n<h2>3. Registrering af vibrationer efter sv\u00e6rhedsgrad<\/h2>\n<p>Den store diagnostiske v\u00e6rdi ved afskalning er, at den viser sig tidligt og udvikler sig i et genkendeligt forl\u00f8b. P\u00e5visningen afh\u00e6nger i h\u00f8j grad af <a href=\"https:\/\/vibromera.eu\/da\/glossary\/envelope-analysis\/\">envelopeanalyse<\/a>, som demodulerer de h\u00f8jfrekvente slagringe for at afsl\u00f8re den underliggende fejlfrekvens.<\/p>\n<h3>Tidligt stadium (mikroskader)<\/h3>\n<ul>\n<li>Afskalninger med en diameter p\u00e5 under 1\u20132 mm.<\/li>\n<li>Sm\u00e5 toppe ved de karakteristiske brudfrekvenser i <a href=\"https:\/\/vibromera.eu\/da\/glossary\/envelope-spectrum\/\">envelopspektrum<\/a>.<\/li>\n<li>Ofte usynlig i standardversionen <a href=\"https:\/\/vibromera.eu\/da\/glossary\/fft\/\">FFT<\/a> spektrum.<\/li>\n<li>Kuvertamplitude: ca. 0,5\u20132 g.<\/li>\n<li>Resterende levetid: typisk 6\u201318 m\u00e5neder.<\/li>\n<\/ul>\n<h3>Moderate stage<\/h3>\n<ul>\n<li>Afskalninger med en diameter p\u00e5 2\u201310 mm.<\/li>\n<li>Tydelige spidser i fejlfrekvensen i b\u00e5de FFT- og kuvert-spektrene.<\/li>\n<li>Two to three <a href=\"https:\/\/vibromera.eu\/da\/glossary\/harmonics\/\">harmoniske<\/a> af den synlige fejlfrekvens.<\/li>\n<li>Onset of <a href=\"https:\/\/vibromera.eu\/da\/glossary\/sidebands\/\">sideb\u00e5nd<\/a> formationer omkring toppene.<\/li>\n<li>Amplitude: ca. 2\u201310 g.<\/li>\n<li>Resterende levetid: 2\u20136 m\u00e5neder.<\/li>\n<\/ul>\n<h3>Advanced stage<\/h3>\n<ul>\n<li>Afskalninger p\u00e5 over 10 mm, muligvis flere stykker.<\/li>\n<li>Spidsv\u00e6rdier i fejlfrekvensen med meget stor amplitude.<\/li>\n<li>Talrige harmoniske, fire til otte eller flere.<\/li>\n<li>En kompleks sideb\u00e5ndsstruktur.<\/li>\n<li>Et forh\u00f8jet st\u00f8jniveau.<\/li>\n<li>Amplitude: over 10 g.<\/li>\n<li>Forventet levetid: dage til uger.<\/li>\n<\/ul>\n<h3>Alvorligt \/ kritisk stadium<\/h3>\n<ul>\n<li>Omfattende afskalning med adskillige skader.<\/li>\n<li>Bredb\u00e5ndsst\u00f8j begynder at dominere spektret.<\/li>\n<li>De enkelte fejlfrekvenser drukner i den st\u00f8j.<\/li>\n<li>Meget kraftige vibrationer, h\u00f8rbar lejest\u00f8j og stigende temperatur.<\/li>\n<li>Der er risiko for svigt \u2014 en \u00f8jeblikkelig udskiftning er n\u00f8dvendig.<\/li>\n<\/ul>\n<p>For at kunne oms\u00e6tte dette til praksis skal du kende de n\u00f8jagtige frekvenser, du skal holde \u00f8je med. De afh\u00e6nger af lejets geometri og akselhastigheden, s\u00e5 beregn dem p\u00e5 forh\u00e5nd ved hj\u00e6lp af <a href=\"https:\/\/vibromera.eu\/da\/calculators\/bearing-defect-frequencies\/\">Beregner for lejefejlfrekvens<\/a> \u2014 det resulterende <a href=\"https:\/\/vibromera.eu\/da\/glossary\/bpfo\/\">BPFO<\/a>, <a href=\"https:\/\/vibromera.eu\/da\/glossary\/bpfi\/\">BPFI<\/a>, <a href=\"https:\/\/vibromera.eu\/da\/glossary\/bsf\/\">BSF<\/a> og <a href=\"https:\/\/vibromera.eu\/da\/glossary\/ftf\/\">FTF<\/a> V\u00e6rdierne angiver pr\u00e6cist, hvor p\u00e5 spektret en afskalning p\u00e5 hver komponent vil vise sig.<\/p>\n<h2>4. Spredning og f\u00f8lgeskader<\/h2>\n<h3>Spall growth<\/h3>\n<p>N\u00e5r der f\u00f8rst er opst\u00e5et en afskalning, vokser den gradvist, og v\u00e6ksten er som regel eksponentiel snarere end line\u00e6r:<\/p>\n<ul>\n<li>Slagbelastning ved afskalningskanterne medf\u00f8rer lokal h\u00f8j sp\u00e6nding.<\/li>\n<li>Det tilst\u00f8dende materiale udmattes hurtigere end en ubeskadiget l\u00f8bebane.<\/li>\n<li>Afskalningen breder sig udad og dybere for hver omgang.<\/li>\n<li>En lille afskalning kan udvikle sig til en stor inden for f\u00e5 uger, n\u00e5r processen f\u00f8rst er kommet i gang.<\/li>\n<\/ul>\n<h3>F\u00f8lgeskader<\/h3>\n<p>Afskalning skaber ogs\u00e5 partikler, som udl\u00f8ser f\u00f8lgeskader:<\/p>\n<ul>\n<li><strong>Partikeldannelse:<\/strong> Metalflager fra afskalningen cirkulerer i sm\u00f8remidlet.<\/li>\n<li><strong>Trekropsslid:<\/strong> at snavset fungerer som en slibemasse og ridser ellers intakte overflader.<\/li>\n<li><strong>Sekund\u00e6re afskalninger:<\/strong> De indlejrede partikler laver buler i den nye l\u00f8bebane og danner nye afskalninger andre steder.<\/li>\n<li><strong>Hurtig forv\u00e6rring:<\/strong> N\u00e5r der forekommer flere afskalninger samtidigt, forv\u00e6rres skaden kraftigt.<\/li>\n<li><strong>Totalt svigt:<\/strong> Lejet mister i sidste ende al sin b\u00e6reevne.<\/li>\n<\/ul>\n<h2>5. Reaktion og afhj\u00e6lpende foranstaltninger<\/h2>\n<h3>Upon detection<\/h3>\n<ol>\n<li><strong>Bekr\u00e6ft diagnosen:<\/strong> kontroller, at den m\u00e5lte fejlfrekvens stemmer overens med lejets geometri \u2014 det er ikke et tilf\u00e6lde eller en <a href=\"https:\/\/vibromera.eu\/da\/glossary\/harmonics\/\">harmonisk<\/a> af noget andet.<\/li>\n<li><strong>Vurder sv\u00e6rhedsgraden:<\/strong> Placer fejlen p\u00e5 skalaen ovenfor ved hj\u00e6lp af amplituden og antallet af harmoniske.<\/li>\n<li><strong>\u00d8get overv\u00e5gning:<\/strong> indsn\u00e6vre intervallerne fra m\u00e5nedligt til ugentligt eller dagligt, efterh\u00e5nden som alvorligheden stiger.<\/li>\n<li><strong>Planl\u00e6g udskiftning:<\/strong> planl\u00e6g udskiftningen p\u00e5 et passende tidspunkt <a href=\"https:\/\/vibromera.eu\/da\/glossary\/shutdown\/\">Nedlukning<\/a> window.<\/li>\n<li><strong>Skaf lejet:<\/strong> Bestil den korrekte model, og kontroller specifikationerne inden det planlagte stop.<\/li>\n<\/ol>\n<h3>N\u00f8dindikatorer<\/h3>\n<p>Der skal straks foretages en nedlukning, hvis et af f\u00f8lgende forhold opst\u00e5r:<\/p>\n<ul>\n<li>Vibrationsamplituden fordobles p\u00e5 mindre end en uge.<\/li>\n<li>Lejetemperaturen stiger hurtigt \u2014 mere end ca. 5 \u00b0C p\u00e5 et enkelt skift.<\/li>\n<li>H\u00f8rbar sliben, hvinen eller ruhed fra lejet<\/li>\n<li>Der forekommer flere lejefrekvenser p\u00e5 samme tid, hvilket tyder p\u00e5 flere defekter.<\/li>\n<li>Mangel p\u00e5 sm\u00f8remiddel eller synlig forurening.<\/li>\n<\/ul>\n<h2>6. Forebyggelse gennem design og vedligeholdelse<\/h2>\n<h3>Design phase<\/h3>\n<ul>\n<li>V\u00e6lg lejer med en tilstr\u00e6kkelig levetidsv\u00e6rdi (L10, der er betydeligt l\u00e6ngere end den kr\u00e6vede levetid).<\/li>\n<li>S\u00f8rg for et passende sm\u00f8resystem og effektiv t\u00e6tning.<\/li>\n<li>S\u00f8rg for tilstr\u00e6kkelig k\u00f8ling i forhold til driftsforholdene.<\/li>\n<\/ul>\n<h3>Installationsfasen<\/h3>\n<ul>\n<li>S\u00f8rg for at f\u00f8lge retningslinjerne for korrekt installation og brug de rette monteringsv\u00e6rkt\u00f8jer for at undg\u00e5 skader under monteringen.<\/li>\n<li>Kontroller, at det er korrekt <a href=\"https:\/\/vibromera.eu\/da\/glossary\/bearing-clearance\/\">lejespillerum<\/a>.<\/li>\n<li>Opn\u00e5 pr\u00e6cision <a href=\"https:\/\/vibromera.eu\/da\/glossary\/misalignment\/\">justering<\/a> for at undg\u00e5 kantbelastning.<\/li>\n<\/ul>\n<h3>Driftsfase<\/h3>\n<ul>\n<li>Gennemf\u00f8r et program til overv\u00e5gning af vibrationer, der omfatter konvolutanalyse.<\/li>\n<li>S\u00f8rg for at f\u00f8lge et konsekvent sm\u00f8reprogram \u2014 med de rigtige intervaller, m\u00e6ngder og sm\u00f8remiddelkvaliteter.<\/li>\n<li>Overv\u00e5g temperaturen.<\/li>\n<li>S\u00f8rg for, at rotorerne er korrekt afbalanceret for at minimere de dynamiske belastninger, der forkorter udmattelseslevetiden. En b\u00e6rbar tokanalsanalysator som f.eks. <a href=\"https:\/\/vibromera.eu\/da\/vare-2\/balanset-1\/\">Balanset-1A<\/a> giver en tekniker mulighed for b\u00e5de at f\u00f8lge et mist\u00e6nkeligt lejes kuvertspektrum og, hvis \u00e5rsagen er rotorubalance, at korrigere den p\u00e5 stedet i maskinens egne lejer \u2014 og dermed fjerne netop den dynamiske belastning, der drev lejet mod for tidlig afskalning.<\/li>\n<\/ul>\n<p>Afskalning er det uundg\u00e5elige slutresultat af lejeudmattelse, men det beh\u00f8ver ikke at komme som en overraskelse. Gennem et fornuftigt valg af lejer, korrekt montering, konsekvent sm\u00f8ring og <a href=\"https:\/\/vibromera.eu\/da\/glossary\/condition-monitoring\/\">tilstandsoverv\u00e5gning<\/a>, levetiden forl\u00e6nges, og fejlen opdages i tide til at forhindre f\u00f8lgeskader og omdanne et uplanlagt nedbrud til en planlagt udskiftning til en lav pris.<\/p>\n<hr>\n<p><a href=\"https:\/\/vibromera.eu\/da\/glossary\/\">\u2190 Tilbage til hovedindekset<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>L\u00e6r om afskalning, afskalning af lejeoverflademateriale p\u00e5 grund af udmattelse, den prim\u00e6re svigttilstand i rullelejer, der kan detekteres gennem vibrationsanalyse.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[109,110],"tags":[],"class_list":["post-245","glossary","type-glossary","status-publish","hentry","category-glossary","category-vibration-diagnostics"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/da\/wp-json\/wp\/v2\/glossary\/245","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/da\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/vibromera.eu\/da\/wp-json\/wp\/v2\/types\/glossary"}],"version-history":[{"count":1,"href":"https:\/\/vibromera.eu\/da\/wp-json\/wp\/v2\/glossary\/245\/revisions"}],"predecessor-version":[{"id":101410,"href":"https:\/\/vibromera.eu\/da\/wp-json\/wp\/v2\/glossary\/245\/revisions\/101410"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/da\/wp-json\/wp\/v2\/media?parent=245"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/da\/wp-json\/wp\/v2\/categories?post=245"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/da\/wp-json\/wp\/v2\/tags?post=245"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}