{"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\/fi\/glossary\/spalling\/","title":{"rendered":"Mit\u00e4 on lohkeilu vierint\u00e4laakereissa?"},"content":{"rendered":"<h1>Vierint\u00e4laakereiden lohkeilun ymm\u00e4rt\u00e4minen<\/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\/fi\/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\/fi\/product\/balanset-1\/\" title=\"Kannettava tasapainotin ja t\u00e4rin\u00e4analysaattori 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 kannettava tasapainotin ja v\u00e4r\u00e4htelyanalysaattori, t\u00e4ydellinen sarja\" 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\/fi\/product-category\/devices\/\" rel=\"tag\">Laitteet<\/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\/fi\/product\/balanset-1\/\" title=\"Kannettava tasapainotin ja t\u00e4rin\u00e4analysaattori Balanset-1A\">Kannettava tasapainotin &#038; t\u00e4rin\u00e4analysaattori 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> + ALV (jos sovellettavissa)<\/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=\"\/fi\/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=\"Lis\u00e4\u00e4 ostoskoriin\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Lis\u00e4\u00e4 ostoskoriin\" 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=\"\/fi\/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=\"Lis\u00e4\u00e4 ostoskoriin: \u201cPortable balancer &amp; Vibration analyzer Balanset-1A\u201d\" rel=\"nofollow\" data-success_message=\"\u201cPortable balancer &amp; Vibration analyzer Balanset-1A\u201d on lis\u00e4tty ostoskoriin\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Lis\u00e4\u00e4 ostoskoriin<\/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\/fi\/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\/fi\/product\/vibration-sensor\/\" title=\"T\u00e4rin\u00e4anturi\">\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:n t\u00e4rin\u00e4anturin l\u00e4hikuva\" 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\/fi\/product-category\/parts\/\" rel=\"tag\">Osat<\/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\/fi\/product\/vibration-sensor\/\" title=\"T\u00e4rin\u00e4anturi\">T\u00e4rin\u00e4anturi<\/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> + ALV (jos sovellettavissa)<\/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=\"\/fi\/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=\"Lis\u00e4\u00e4 ostoskoriin\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Lis\u00e4\u00e4 ostoskoriin\" 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=\"\/fi\/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=\"Lis\u00e4\u00e4 ostoskoriin: \u201cVibration sensor\u201d\" rel=\"nofollow\" data-success_message=\"\u201cVibration sensor\u201d on lis\u00e4tty ostoskoriin\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Lis\u00e4\u00e4 ostoskoriin<\/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\/fi\/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\/fi\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Optinen anturi (lasertakometri)\">\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=\"Optinen anturi (lasertakometri)\" 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\/fi\/product-category\/parts\/\" rel=\"tag\">Osat<\/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\/fi\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Optinen anturi (lasertakometri)\">Optinen anturi (lasertakometri)<\/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> + ALV (jos sovellettavissa)<\/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=\"\/fi\/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=\"Lis\u00e4\u00e4 ostoskoriin\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Lis\u00e4\u00e4 ostoskoriin\" 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=\"\/fi\/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=\"Lis\u00e4\u00e4 ostoskoriin: \u201cOptical Sensor (Laser Tachometer)\u201d\" rel=\"nofollow\" data-success_message=\"\u201cOptical Sensor (Laser Tachometer)\u201d on lis\u00e4tty ostoskoriin\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Lis\u00e4\u00e4 ostoskoriin<\/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\/fi\/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\/fi\/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-roottorin tasapainotussarja: kantolaukku, monikanavainen signaalimuunnin, k\u00e4dess\u00e4 pidett\u00e4v\u00e4 analysaattori, magneettijalusta, t\u00e4rin\u00e4anturit ja kierretyt kaapelit.\" 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\/fi\/product-category\/devices\/\" rel=\"tag\">Laitteet<\/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\/fi\/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> + ALV (jos sovellettavissa)<\/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=\"\/fi\/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=\"Lis\u00e4\u00e4 ostoskoriin\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Lis\u00e4\u00e4 ostoskoriin\" 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=\"\/fi\/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=\"Lis\u00e4\u00e4 ostoskoriin: \u201cBalanset-4\u201d\" rel=\"nofollow\" data-success_message=\"\u201cBalanset-4\u201d on lis\u00e4tty ostoskoriin\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Lis\u00e4\u00e4 ostoskoriin<\/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\/fi\/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\/fi\/product\/magnet-stand\/\" title=\"Magneettinen jalusta 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=\"Magneettipohja.\" 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\/fi\/product-category\/parts\/\" rel=\"tag\">Osat<\/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\/fi\/product\/magnet-stand\/\" title=\"Magneettinen jalusta Insize-60-kgf\">Magneettinen jalusta 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> + ALV (jos sovellettavissa)<\/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=\"\/fi\/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=\"Lis\u00e4\u00e4 ostoskoriin\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Lis\u00e4\u00e4 ostoskoriin\" 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=\"\/fi\/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=\"Lis\u00e4\u00e4 ostoskoriin: \u201cMagnetic Stand Insize-60-kgf\u201d\" rel=\"nofollow\" data-success_message=\"\u201cMagnetic Stand Insize-60-kgf\u201d on lis\u00e4tty ostoskoriin\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Lis\u00e4\u00e4 ostoskoriin<\/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\/fi\/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\/fi\/product\/reflective-tape\/\" title=\"Heijastava nauha\">\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=\"Heijastava nauha\" 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\/fi\/product-category\/parts\/\" rel=\"tag\">Osat<\/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\/fi\/product\/reflective-tape\/\" title=\"Heijastava nauha\">Heijastava nauha<\/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> + ALV (jos sovellettavissa)<\/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=\"\/fi\/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=\"Lis\u00e4\u00e4 ostoskoriin\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Lis\u00e4\u00e4 ostoskoriin\" 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=\"\/fi\/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=\"Lis\u00e4\u00e4 ostoskoriin: \u201cReflective tape\u201d\" rel=\"nofollow\" data-success_message=\"\u201cReflective tape\u201d on lis\u00e4tty ostoskoriin\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Lis\u00e4\u00e4 ostoskoriin<\/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\/fi\/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\/fi\/product\/dynamic-balancer-balanset-1a\/\" title=\"Dynaaminen tasapainotin &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-pakkauksen sis\u00e4lt\u00f6, jossa on liit\u00e4nt\u00e4yksikk\u00f6, anturit, kierroslukumittari ja lis\u00e4varusteet\" 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\/fi\/product-category\/devices\/\" rel=\"tag\">Laitteet<\/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\/fi\/product\/dynamic-balancer-balanset-1a\/\" title=\"Dynaaminen tasapainotin &quot;Balanset-1A&quot; OEM\">Dynaaminen tasapainotin \"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\">&euro;<\/span>1,735.00<\/span> + ALV (jos sovellettavissa)<\/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=\"\/fi\/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=\"Lis\u00e4\u00e4 ostoskoriin\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Lis\u00e4\u00e4 ostoskoriin\" 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=\"\/fi\/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=\"Lis\u00e4\u00e4 ostoskoriin: \u201cDynamic balancer \u201cBalanset-1A\u201d OEM\u201d\" rel=\"nofollow\" data-success_message=\"\u201cDynamic balancer \u201cBalanset-1A\u201d OEM\u201d on lis\u00e4tty ostoskoriin\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Lis\u00e4\u00e4 ostoskoriin<\/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>Lohkeilu<\/strong> \u2014 kutsutaan my\u00f6s hilseilyksi, kuoriutumiseksi tai kuoppakorroosioiksi pienten vaurioiden tapauksessa \u2014 on laakerien vierint\u00e4pinnoilta tai vierint\u00e4elementeist\u00e4 irtoava paikallinen hilseily, siruilu tai murtuma, jonka aiheuttaa vierint\u00e4kontaktiv\u00e4symys. Kuoriutuma n\u00e4kyy kraatterina tai kuoppana, josta on irronnut pala kovennettua ter\u00e4st\u00e4 j\u00e4tt\u00e4en karhean, ter\u00e4v\u00e4reunaisen painauman. Joka kerta kun kuula tai rulla vier\u00e4ht\u00e4\u00e4 kyseisen kraatterin yli, se aiheuttaa pienen mekaanisen iskun, ja n\u00e4m\u00e4 toistuvat iskut s\u00e4teilev\u00e4t <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/vibration\/\">t\u00e4rin\u00e4<\/a> at predictable <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/bearing-fault-frequencies\/\">laakerivikataajuudet<\/a> \u2014 tunnusmerkki, jonka avulla analyytikko voi havaita vian kauan ennen laakerin jumiutumista.<\/p>\n<p>Lohkeaminen on yleisin ja tietyss\u00e4 mieless\u00e4 merkitt\u00e4vin <em>normal<\/em> laakerivauriomekanismi: se edustaa laakerin v\u00e4symisi\u00e4n luonnollista loppua. Se eroaa <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/bearing-wear\/\">kuluminen<\/a> (asteittaisesta, hajautuneesta materiaalikadosta) ja korroosion aiheuttamasta <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/pitting\/\">kuoppakorroosio<\/a>. T\u00e4rke\u00e4\u00e4 on, ett\u00e4 lohkeaminen on havaittavissa <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/vibration-analysis\/\">v\u00e4r\u00e4htelyanalyysi<\/a> kuukausia ennen laakerin t\u00e4ydellist\u00e4 vauriota, mik\u00e4 tekee siit\u00e4 jokaisen <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/predictive-maintenance\/\">ennakoiva huolto<\/a> ohjelma.<\/p>\n<h2>1. Lohkeamisen fyysinen mekanismi<\/h2>\n<h3>Vierint\u00e4v\u00e4symys<\/h3>\n<p>Lohkeaminen ei ole \u00e4killinen tapahtuma vaan pitk\u00e4n v\u00e4symisprosessin n\u00e4kyv\u00e4 huipentuma:<\/p>\n<ol>\n<li><strong>Syklinen kuormitus:<\/strong> jokainen vierint\u00e4elimen kierros kohdistaa Hertzin kontaktirasituksen juoksuradan pintaan, tyypillisesti <strong>1000\u20133000 MPa<\/strong>, tiivistyneen\u00e4 kontaktipintaan, joka on pienempi kuin riisin jyv\u00e4.<\/li>\n<li><strong>Pinnanalainen leikkausj\u00e4nnitys:<\/strong> suurin vaihteleva leikkausj\u00e4nnitys esiintyy ei pinnan tasolla vaan hieman sen alapuolella, tavallisesti <strong>0.2\u20130.5 mm<\/strong> deep.<\/li>\n<li><strong>Halkeaman synty:<\/strong> miljoonien \u2014 usein miljardien \u2014 j\u00e4nnityssyklien j\u00e4lkeen mikroskooppinen halkeama muodostuu pinnanalaisen j\u00e4nnityskonsentraation kohtaan, usein ter\u00e4ksen ei-metalliseen sulkeumaan.<\/li>\n<li><strong>Halkeaman eteneminen:<\/strong> halkeama kasvaa pinnan suuntaisesti, haarautuen sitten sek\u00e4 pintaa kohti ett\u00e4 syvemm\u00e4lle materiaaliin.<\/li>\n<li><strong>Materiaalin irtoaminen:<\/strong> halkeamaverkosto erist\u00e4\u00e4 lopulta ter\u00e4skappaleen.<\/li>\n<li><strong>Kuoppien muodostuminen:<\/strong> eristetty materiaali irtoaa j\u00e4tt\u00e4en j\u00e4lkeens\u00e4 tunnusomaisen kraatterin.<\/li>\n<\/ol>\n<p>Koska vaurio alkaa pinnan alta, laakeri voi olla p\u00e4ivien p\u00e4\u00e4ss\u00e4 n\u00e4kyv\u00e4n lohkeaman syntymisest\u00e4, vaikka sen juoksuradat n\u00e4ytt\u00e4isiv\u00e4t paljaalle silm\u00e4lle peilinkirkkailta \u2014 juuri siksi pintaalainen v\u00e4syminen on n\u00e4kym\u00e4t\u00f6nt\u00e4 tarkastuksessa mutta kuultavissa v\u00e4r\u00e4htelysensorilla.<\/p>\n<h3>Tyypilliset kuopan ominaisuudet<\/h3>\n<ul>\n<li><strong>Koko:<\/strong> aluksi 1\u20135 mm halkaisijaltaan, kasvaa 10\u201320 mm:iin tai enemm\u00e4n.<\/li>\n<li><strong>Syvyys:<\/strong> 0,2\u20132 mm karkaistun pintakerroksen sis\u00e4\u00e4n.<\/li>\n<li><strong>Muoto:<\/strong> ep\u00e4s\u00e4\u00e4nn\u00f6llinen kraatteri, jossa on karhea pohja ja rosoiset reunat.<\/li>\n<li><strong>Sijainti:<\/strong> useimmiten ulkokeh\u00e4ss\u00e4 kuormitusvy\u00f6hykkeell\u00e4.<\/li>\n<li><strong>Ulkon\u00e4k\u00f6:<\/strong> aluksi kirkas, ter\u00e4v\u00e4reunaiselta ja metallinen, tummuuen k\u00e4yt\u00f6n jatkuessa.<\/li>\n<\/ul>\n<h2>2. Syyt ja vaikuttavat tekij\u00e4t<\/h2>\n<h3>Normaali v\u00e4symisik\u00e4<\/h3>\n<ul>\n<li>Jokaisella laakerilla on rajallinen v\u00e4symisik\u00e4 \u2014 the <strong>L10-kestoik\u00e4<\/strong>, piste johon menness\u00e4 90 % populaatiosta odotetaan selvi\u00e4v\u00e4n.<\/li>\n<li>Hilseily on odotettavissa oleva k\u00e4ytt\u00f6i\u00e4n lopun vikamuoto; sen saavuttaminen lasketulla L10-i\u00e4ll\u00e4 tai sen j\u00e4lkeen ei ole vika vaan suunnittelun onnistuminen.<\/li>\n<li>Oikea laakerivalinta varmistaa, ett\u00e4 L10-ik\u00e4 ylitt\u00e4\u00e4 vaadittavan k\u00e4ytt\u00f6i\u00e4n reilusti. Voit mitoittaa sen kuorman ja nopeuden mukaan k\u00e4ytt\u00e4m\u00e4ll\u00e4 <a href=\"https:\/\/vibromera.eu\/fi\/calculators\/bearing-load\/\">Laakerin L10 k\u00e4ytt\u00f6i\u00e4n laskuri (ISO 281)<\/a>.<\/li>\n<\/ul>\n<h3>Ennenaikainen kuoppien muodostuminen<\/h3>\n<p>Kun hilseily ilmaantuu selv\u00e4sti ennen L10-ik\u00e4\u00e4, ulkoinen syy on l\u00e4hes aina vaikuttamassa:<\/p>\n<ul>\n<li><strong>Ylikuormitus:<\/strong> ik\u00e4 lyhenee kuorman kuutiossa (ik\u00e4 \u221d 1\/Kuorma\u00b3), joten jo kohtuullinen ylikuormitus lyhent\u00e4\u00e4 k\u00e4ytt\u00f6ik\u00e4\u00e4 dramaattisesti.<\/li>\n<li><strong>Huono voitelu:<\/strong> riitt\u00e4m\u00e4t\u00f6n \u00f6ljykalvo antaa karkeusuusille kontaktin, mik\u00e4 nostaa pintaj\u00e4nnityst\u00e4.<\/li>\n<li><strong>Saastuminen:<\/strong> kovat hiukkaset lohkovat laakeriuran ja synnytt\u00e4v\u00e4t j\u00e4nnityskohtia, jotka siement\u00e4v\u00e4t s\u00e4r\u00f6j\u00e4.<\/li>\n<li><strong>Kohdistusvirhe:<\/strong> reunakuormitus keskitt\u00e4\u00e4 j\u00e4nnityksen kosketuksen toiseen p\u00e4\u00e4h\u00e4n.<\/li>\n<li><strong>Virheellinen asennus:<\/strong> asennusvahinko k\u00e4ynnist\u00e4\u00e4 varhaisia vaurioita.<\/li>\n<li><strong>Korroosio:<\/strong> pinnan kuopat toimivat valmiina s\u00e4r\u00f6jen ydintymispaikkoina.<\/li>\n<li><strong>Materiaaliviat:<\/strong> sulkeumat laakeritereoksessa.<\/li>\n<\/ul>\n<p>Usein huomiotta j\u00e4\u00e4v\u00e4 kiihdytt\u00e4v\u00e4 tekij\u00e4 on dynaaminen kuorma, joka aiheutuu roottorin huonosta tasapainotuksesta: j\u00e4\u00e4nn\u00f6sep\u00e4tasapaino <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/unbalance\/\">ep\u00e4tasapaino<\/a> lis\u00e4\u00e4 py\u00f6riv\u00e4n voiman staattiseen laakerikuormaan, ja sen kuutiosuhteen kautta jo pieni dynaaminen kuorman kasvu voi lyhent\u00e4\u00e4 v\u00e4symisik\u00e4\u00e4 merkitt\u00e4v\u00e4sti. Roottoreiden hyv\u00e4 tasapainotus on siksi aito laakerien suojelukeino, ei pelk\u00e4st\u00e4\u00e4n v\u00e4r\u00e4htelyn mukavuustekij\u00e4.<\/p>\n<h2>3. V\u00e4rin\u00e4n havaitseminen vakavuusvaiheen mukaan<\/h2>\n<p>Hilseilyn suuri diagnostinen arvo piilee siin\u00e4, ett\u00e4 se ilmoittaa itsest\u00e4\u00e4n varhain ja etenee tunnistettavassa j\u00e4rjestyksess\u00e4. Havaitseminen perustuu vahvasti <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/envelope-analysis\/\">verhok\u00e4yr\u00e4analyysi<\/a>, joka demoduloi korkeataajuiset iskurenkaat paljastaakseen taustalla olevan vikatahdin.<\/p>\n<h3>Alkuvaiheen kuoppa (mikro-kuoppa)<\/h3>\n<ul>\n<li>Kuoppa, jonka halkaisija on 1\u20132 mm.<\/li>\n<li>Pienet piikit laakerin vikataajuuksilla <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/envelope-spectrum\/\">verhospektri<\/a>.<\/li>\n<li>Usein n\u00e4kym\u00e4t\u00f6n standardissa <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/fft\/\">FFT<\/a> spektri.<\/li>\n<li>Verhok\u00e4yr\u00e4n amplitudi: noin 0,5\u20132 g.<\/li>\n<li>J\u00e4ljell\u00e4 oleva k\u00e4ytt\u00f6ik\u00e4: tyypillisesti 6\u201318 kuukautta.<\/li>\n<\/ul>\n<h3>Moderate stage<\/h3>\n<ul>\n<li>Kuoppa, jonka halkaisija on 2\u201310 mm.<\/li>\n<li>Selke\u00e4t vikataajuuspiikit sek\u00e4 FFT- ett\u00e4 verhok\u00e4yr\u00e4spektreiss\u00e4.<\/li>\n<li>Two to three <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/harmonics\/\">yliaallot<\/a> vikataajuudesta on n\u00e4kyviss\u00e4.<\/li>\n<li>Onset of <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/sidebands\/\">sivukaista<\/a> muodostuminen huippujen ymp\u00e4rille.<\/li>\n<li>Amplitudi: noin 2\u201310 g.<\/li>\n<li>J\u00e4ljell\u00e4 oleva k\u00e4ytt\u00f6ik\u00e4: 2\u20136 kuukautta.<\/li>\n<\/ul>\n<h3>Advanced stage<\/h3>\n<ul>\n<li>Kuoppa, jonka halkaisija on suurempi kuin 10 mm, mahdollisesti useita kuoppia.<\/li>\n<li>Eritt\u00e4in korkeat vikafrequenssin huippuarvot.<\/li>\n<li>Useita yliaaltoja, nelj\u00e4st\u00e4 kahdeksaan tai enemm\u00e4n.<\/li>\n<li>Monimutkainen sivukaista-rakenne.<\/li>\n<li>Kohonnut kohinatasot.<\/li>\n<li>Amplitudi: yli 10 g.<\/li>\n<li>J\u00e4ljell\u00e4 oleva k\u00e4ytt\u00f6ik\u00e4: p\u00e4ivi\u00e4 tai viikkoja.<\/li>\n<\/ul>\n<h3>Vakava \/ kriittinen vaihe<\/h3>\n<ul>\n<li>Laaja-alainen hilseily useilla vioilla.<\/li>\n<li>Laajakaistainen kohina alkaa hallita spektri\u00e4.<\/li>\n<li>Yksitt\u00e4iset vikataajuudet peittyv\u00e4t kohinan alle.<\/li>\n<li>Eritt\u00e4in korkea kokonaisv\u00e4r\u00e4htely, kuuluva laakerimelu ja kohoava l\u00e4mp\u00f6tila.<\/li>\n<li>Vika on v\u00e4lit\u00f6n \u2014 v\u00e4lit\u00f6n vaihto vaaditaan.<\/li>\n<\/ul>\n<p>Jotta voit muuttaa t\u00e4m\u00e4n toiminnaksi, sinun t\u00e4ytyy tiet\u00e4\u00e4 tarkat etsitt\u00e4v\u00e4t taajuudet. Ne riippuvat laakerin&#8217;n geometriasta ja akselin nopeudesta, joten laske ne etuk\u00e4teen <a href=\"https:\/\/vibromera.eu\/fi\/calculators\/bearing-defect-frequencies\/\">Laakerivikojen esiintymistiheyden laskin<\/a> \u2014 tuloksena saatavat <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/bpfo\/\">BPFO<\/a>, <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/bpfi\/\">BPFI<\/a>, <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/bsf\/\">BSF<\/a> ja <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/ftf\/\">FTF<\/a> arvot kertovat t\u00e4sm\u00e4lleen, miss\u00e4 kohdassa spektri\u00e4 kunkin komponentin hilseily n\u00e4kyy.<\/p>\n<h2>4. Eteneminen ja toissijainen vaurio<\/h2>\n<h3>Spall growth<\/h3>\n<p>Kun hilseily on muodostunut, se kasvaa asteittain, ja kasvu on tyypillisesti eksponentiaalista eik\u00e4 lineaarista:<\/p>\n<ul>\n<li>Iskukuormitus hilseilyn reunoilla aiheuttaa paikallisesti korkean j\u00e4nnityksen.<\/li>\n<li>Viereinen materiaali v\u00e4syy nopeammin kuin koskematon vierint\u00e4pinta.<\/li>\n<li>Hilseily laajenee ulosp\u00e4in ja syvenee jokaisella kierroksella.<\/li>\n<li>Pieni hilseily voi kasvaa suureksi viikkojen kuluessa, kun prosessi ruokkii itse itse\u00e4\u00e4n.<\/li>\n<\/ul>\n<h3>Toissijaiset vahingot<\/h3>\n<p>Kuoriutuminen tuottaa my\u00f6s roskia, jotka aiheuttavat ketjureaktiomaisia vaurioita:<\/p>\n<ul>\n<li><strong>Roskan muodostuminen:<\/strong> kuoriuman metallipartikkelit kiert\u00e4v\u00e4t voiteluaineessa.<\/li>\n<li><strong>Kolmen kappaleen hankaus:<\/strong> n\u00e4m\u00e4 roskat toimivat hiomayhdisteen tavoin naarmuttaen muuten moitteettomia pintoja.<\/li>\n<li><strong>Toisiopurennukset:<\/strong> uponneet hiukkaset kolhivat tuoreen kuularadan pinnan ja synnytt\u00e4v\u00e4t uusia kuoriutumiskohtia muualla.<\/li>\n<li><strong>Nopea heikkeneminen:<\/strong> kun useat purennukset esiintyv\u00e4t yht\u00e4 aikaa, vika kiihdytt\u00e4\u00e4 nopeasti.<\/li>\n<li><strong>T\u00e4ydellinen vaurio:<\/strong> laakeri menett\u00e4\u00e4 lopulta kaiken kuormankantokyvyn.<\/li>\n<\/ul>\n<h2>5. Reagointi ja korjaavat toimenpiteet<\/h2>\n<h3>Upon detection<\/h3>\n<ol>\n<li><strong>Vahvista diagnoosi:<\/strong> varmista, ett\u00e4 mitattu vikataajuus vastaa laakerin geometriaa \u2014 ei ole sattumaa tai <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/harmonics\/\">harmoninen<\/a> jostakin muusta.<\/li>\n<li><strong>Arvioi vakavuus:<\/strong> sijoita vika yll\u00e4 olevalle vaiheasteikkoon amplitudin ja harmonisten lukum\u00e4\u00e4r\u00e4n perusteella.<\/li>\n<li><strong>Tarkkailun tehostaminen:<\/strong> tiivist\u00e4 seurantav\u00e4li\u00e4 kuukausittaisesta viikoittaiseen tai p\u00e4ivitt\u00e4iseen vakavuuden kasvaessa.<\/li>\n<li><strong>Aikaista vaihto:<\/strong> suunnittele vaihto sopivaan <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/shutdown\/\">sammutus<\/a> window.<\/li>\n<li><strong>Hanki laakeri:<\/strong> tilaa oikea malli ja tarkista sen tekniset tiedot ennen seisokkia.<\/li>\n<\/ol>\n<h3>H\u00e4t\u00e4ilmaisimet<\/h3>\n<p>V\u00e4lit\u00f6n sammutus on aiheellinen, jos jokin seuraavista ilmenee:<\/p>\n<ul>\n<li>T\u00e4rin\u00e4n amplitudi kaksinkertaistuu alle viikossa.<\/li>\n<li>Laakerin l\u00e4mp\u00f6tila nousee nopeasti \u2014 yli noin 5 \u00b0C yhden vuoron aikana.<\/li>\n<li>Laakerin hankausta, vinkumista tai karheutta kuuluu<\/li>\n<li>Useita laakereiden frekvenssi\u00e4 samanaikaisesti, mik\u00e4 osoittaa useita vaurioita.<\/li>\n<li>Voiteluaineen menetys tai n\u00e4kyv\u00e4 saastuminen.<\/li>\n<\/ul>\n<h2>6. Ennaltaehk\u00e4isy suunnittelun ja kunnossapidon avulla<\/h2>\n<h3>Suunnitteluvaihe<\/h3>\n<ul>\n<li>Valitse laakerit, joiden k\u00e4ytt\u00f6ik\u00e4luokitus on riitt\u00e4v\u00e4 (L10 selv\u00e4sti suurempi kuin vaadittu k\u00e4ytt\u00f6ik\u00e4).<\/li>\n<li>Varmista asianmukainen voiteluj\u00e4rjestelm\u00e4 ja tehokas tiivistys.<\/li>\n<li>Varmista riitt\u00e4v\u00e4 j\u00e4\u00e4hdytys k\u00e4ytt\u00f6olosuhteisiin n\u00e4hden.<\/li>\n<\/ul>\n<h3>Asennusvaihe<\/h3>\n<ul>\n<li>K\u00e4yt\u00e4 puhtaita asennusmenetelmi\u00e4 ja oikeita asennusty\u00f6kaluja asennusvaurioiden v\u00e4ltt\u00e4miseksi.<\/li>\n<li>Tarkista oikea <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/bearing-clearance\/\">laakeriv\u00e4lys<\/a>.<\/li>\n<li>Saavuta tarkka <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/misalignment\/\">kohdistus<\/a> reunojen kuormittumisen v\u00e4ltt\u00e4miseksi.<\/li>\n<\/ul>\n<h3>K\u00e4ytt\u00f6vaihe<\/h3>\n<ul>\n<li>Toteuta v\u00e4r\u00e4htelyseurantaohjelma, joka sis\u00e4lt\u00e4\u00e4 verhok\u00e4yr\u00e4analyysin.<\/li>\n<li>Noudata kurinalaisesti voiteluohjelmaa \u2014 oikeat v\u00e4lit, m\u00e4\u00e4r\u00e4t ja voiteluaineen laatu.<\/li>\n<li>Seuraa l\u00e4mp\u00f6tilaa.<\/li>\n<li>Pid\u00e4 roottorit hyvin tasapainossa, jotta v\u00e4symisik\u00e4\u00e4 lyhent\u00e4v\u00e4t dynaamiset kuormat j\u00e4\u00e4v\u00e4t mahdollisimman pieniksi. Kannettava kaksikanavainen analysaattori, kuten <a href=\"https:\/\/vibromera.eu\/fi\/tuote\/balanset-1\/\">Balanset-1A<\/a> antaa teknikon sek\u00e4 seurata ep\u00e4ilytt\u00e4v\u00e4n laakerin verhok\u00e4yr\u00e4spektri\u00e4 ett\u00e4 \u2014 kun perussyy on roottorin ep\u00e4tasapaino \u2014 korjata se paikan p\u00e4\u00e4ll\u00e4 koneen omissa laakereissa, poistaen n\u00e4in juuri sen dynaamisen kuorman, joka ajoi laakeria kohti varhaista hilseily\u00e4.<\/li>\n<\/ul>\n<p>Hilseily on laakerin v\u00e4symisen v\u00e4ist\u00e4m\u00e4t\u00f6n p\u00e4\u00e4tepiste, mutta sen ei tarvitse tulla yll\u00e4tyksen\u00e4. Huolellisella laakerivalinnalla, puhtaalla asennuksella, kurinalaistella voitelulla ja <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/condition-monitoring\/\">kunnonvalvonta<\/a>, k\u00e4ytt\u00f6ik\u00e4 maksimoidaan ja vika havaitaan riitt\u00e4v\u00e4n ajoissa sekundaaristen vahinkojen est\u00e4miseksi \u2014 ja suunnittelematon h\u00e4iri\u00f6pys\u00e4hdys voidaan muuttaa suunnitelluksi, edulliseksi vaihdoksi.<\/p>\n<hr>\n<p><a href=\"https:\/\/vibromera.eu\/fi\/glossary\/\">\u2190 Takaisin p\u00e4\u00e4hakemistoon<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Opi lohkeilusta eli v\u00e4symisest\u00e4 johtuvasta laakerin pintamateriaalin irtoamisesta, joka on vierint\u00e4laakereiden ensisijainen vikaantumistapa, joka voidaan havaita v\u00e4r\u00e4htelyanalyysin avulla.<\/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\/fi\/wp-json\/wp\/v2\/glossary\/245","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/fi\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/vibromera.eu\/fi\/wp-json\/wp\/v2\/types\/glossary"}],"version-history":[{"count":1,"href":"https:\/\/vibromera.eu\/fi\/wp-json\/wp\/v2\/glossary\/245\/revisions"}],"predecessor-version":[{"id":101410,"href":"https:\/\/vibromera.eu\/fi\/wp-json\/wp\/v2\/glossary\/245\/revisions\/101410"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/fi\/wp-json\/wp\/v2\/media?parent=245"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/fi\/wp-json\/wp\/v2\/categories?post=245"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/fi\/wp-json\/wp\/v2\/tags?post=245"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}