{"id":195,"date":"2025-10-31T00:25:51","date_gmt":"2025-10-31T00:25:51","guid":{"rendered":"https:\/\/vibromera.eu\/glossary\/pitting\/"},"modified":"2026-05-23T22:44:19","modified_gmt":"2026-05-23T22:44:19","slug":"pitting","status":"publish","type":"glossary","link":"https:\/\/vibromera.eu\/fi\/glossary\/pitting\/","title":{"rendered":"Mit\u00e4 on laakerien ja hammaspy\u00f6rien pistekorroosio? Pintavauriot"},"content":{"rendered":"<h1>Laakereiden ja hammaspy\u00f6rien pistekorroosion 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\/195?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\/195?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\/195?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\/195?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\/195?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\/195?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\/195?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\/195?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\/195?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\/195?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\/195?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\/195?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\/195?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\/195?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>Pittingi<\/strong> on pienten onteloiden, kraatterien tai syvennysten muodostumista laakerirenkaiden, vierint\u00e4elementtien tai hammaspy\u00f6rien hampaiden ty\u00f6pinnalle. Se johtuu kahdesta t\u00e4ysin erilaisesta mekanismista: <strong>v\u00e4symispistekorroosio<\/strong>, vierint\u00e4kosketuksen v\u00e4symisen varhaisvaiheen ilmi\u00f6, ja <strong>korroosiopiste<\/strong>, joka johtuu s\u00e4hk\u00f6kemiallisesta sy\u00f6vytyksest\u00e4, jossa materiaalia irtoaa pinnalta. Vierint\u00e4laakereissa pistekorroosiota pidet\u00e4\u00e4n yleens\u00e4 varhaisena tai liev\u00e4n\u00e4 muotona <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/spalling\/\">lohkeilu<\/a>; hammaspy\u00f6riss\u00e4 se tunnustetaan omaksi vikatyypikseen, joka eroaa hampaiden murtumisesta tai yleisest\u00e4 <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/gear-wear\/\">gear wear<\/a>.<\/p>\n<p>Riippumatta siit\u00e4, mist\u00e4 se johtuu, pistekorroosio aiheuttaa pinnan ep\u00e4tasaisuutta ja j\u00e4nnityskeskittymi\u00e4, jotka aiheuttavat <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/vibration\/\">t\u00e4rin\u00e4<\/a> ja melua. Jos tilannetta ei korjata, yksitt\u00e4inen syvennys muuttuu halkeaman alkupisteeksi, syvennykset yhdistyv\u00e4t suuremmiksi lohkeamiksi ja komponentti etenee kohti rikkoutumista. Ongelman havaitseminen varhaisessa vaiheessa \u2013 kun vaurio on viel\u00e4 pieni ja kehitys hidasta \u2013 on koko seurannan tarkoitus.<\/p>\n<h2>1. Pitting-tyypit<\/h2>\n<h3>V\u00e4symispistekorroosio (mekaaninen)<\/h3>\n<p>V\u00e4symiskuoppia syntyy toistuvasta vierint\u00e4kosketuksesta ja syklisest\u00e4 <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/fatigue\/\">pinnan alla olevat j\u00e4nnitykset<\/a> jota se asettaa. Se ilmenee kahdella tasolla:<\/p>\n<ul>\n<li><strong>Micropitting:<\/strong> hyvin pienet, halkaisijaltaan noin 10\u201350 mikrometrin kokoiset kuopat, jotka muodostavat mattaharmaan pintarakenteen ja ovat paljaalla silm\u00e4ll\u00e4 tuskin havaittavissa. Ilmi\u00f6 keskittyy suurten rasitusten alueille ja on yleist\u00e4 hammaspy\u00f6riss\u00e4, joissa voitelukerros on ohut, sek\u00e4 suurinopeuksisissa laakereissa. Olosuhteista riippuen se voi vakiintua tai edet\u00e4 makropittingiksi.<\/li>\n<li><strong>Makropitting (alustava pistekorroosio):<\/strong> selv\u00e4sti n\u00e4kyv\u00e4t kraatterit, joiden halkaisija on noin 1\u20135 mm ja syvyys 0,1\u20130,5 mm; ne syntyv\u00e4t, kun pinnan alla oleva v\u00e4symismurtuma levi\u00e4\u00e4 pintaan ja irrottaa sielt\u00e4 palasen. Kraatteri kasvaa yleens\u00e4 suuremmaksi lohkeamaksi, ja sen kehittyminen murtumiseen voi kest\u00e4\u00e4 kuukausia tai jopa vuosia \u2013 juuri t\u00e4t\u00e4 aikav\u00e4li\u00e4 tilavalvonta hy\u00f6dynt\u00e4\u00e4.<\/li>\n<\/ul>\n<h3>Pistekorroosio (kemiallinen)<\/h3>\n<p>Pistekorroosio johtuu pikemminkin s\u00e4hk\u00f6kemiallisesta vaikutuksesta kuin kuormituksesta. Pintaan joutuva kosteus, hapot tai prosessikemikaalit sy\u00f6vytt\u00e4v\u00e4t pintaan matalia, ruosteenv\u00e4risi\u00e4 kuoppia, jotka ovat usein t\u00e4ynn\u00e4 korroosiotuotteita. Toisin kuin v\u00e4symiskuoppia, pistekorroosio levi\u00e4\u00e4 yleens\u00e4 laajalle alueelle eik\u00e4 rajoitu pelk\u00e4st\u00e4\u00e4n kuormitusalueelle, ja vaikka se yleens\u00e4 alkaa matalampana kuin v\u00e4symiskuoppa, jokainen syvennys toimii j\u00e4nnityksen keskittym\u00e4kohdana, josta my\u00f6hemmin syntyy v\u00e4symismurtumia. Tehokas tiivistys ja korroosiota est\u00e4v\u00e4t voiteluaineet ovat ensimm\u00e4inen puolustuslinja.<\/p>\n<h3>S\u00e4hk\u00f6inen pistekorroosio<\/h3>\n<p>S\u00e4hk\u00f6inen pistekorroosio johtuu siit\u00e4, ett\u00e4 virta kulkee laakerin l\u00e4pi ja muodostaa \u00f6ljykalvon yli valokaaren, joka sulattaa pieni\u00e4 kuoppia. Tyypillinen tunnusmerkki on tihe\u00e4sti sijoittuneet kuopat, jotka muodostavat s\u00e4\u00e4nn\u00f6llisi\u00e4 raitoja \u2013 pesulautamaisen tai aaltomaisen &#8220;huilu&#8221;-kuvion. Ilmi\u00f6 on yleist\u00e4 moottoreissa, joita sy\u00f6tet\u00e4\u00e4n taajuusmuuttajilla ja joiden akselin maadoitus on puutteellinen; t\u00e4m\u00e4 on sama perussyy monien <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/electrical-faults\/\">s\u00e4hk\u00f6viat<\/a>, ja se tunnistetaan yleens\u00e4 tarkastelussa sen tyypillisen s\u00e4\u00e4nn\u00f6llisen kuvion perusteella.<\/p>\n<h2>2. Havaitsemismenetelm\u00e4t<\/h2>\n<h3>V\u00e4r\u00e4htelyanalyysi<\/h3>\n<p>Pitting aiheuttaa tunnistettavan t\u00e4rin\u00e4n etenemisen. Alkuvaiheessa se lis\u00e4\u00e4 hieman korkeataajuista t\u00e4rin\u00e4\u00e4; kun vauriot kasvavat, erillisi\u00e4 <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/bearing-fault-frequencies\/\">laakerivikataajuudet<\/a> appear \u2014 <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/bpfo\/\">BPFO<\/a>, <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/bpfi\/\">BPFI<\/a> tai <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/bsf\/\">BSF<\/a> riippuen siit\u00e4, mik\u00e4 pinta on vaurioitunut \u2014 ja niiden amplitudi sek\u00e4 harmonisten aaltojen m\u00e4\u00e4r\u00e4 kasvavat. <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/envelope-analysis\/\">Verhok\u00e4yr\u00e4analyysi<\/a> on tehokkain yksitt\u00e4inen keino havaita varhaisvaiheen pistekorroosiota, koska se erottaa heikot, toistuvat iskut laajakaistaisesta taustakohinasta jo kauan ennen kuin ne alkavat hallita tavallista <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/spectrum\/\">spektri<\/a>.<\/p>\n<h3>Silm\u00e4m\u00e4\u00e4r\u00e4inen tarkastus<\/h3>\n<p>Suora tarkastus edellytt\u00e4\u00e4 laitteen purkamista tai endoskoopin k\u00e4ytt\u00f6\u00e4. Tarkastaja etsii harmaita, himmeit\u00e4 alueita (mikropitting) tai n\u00e4kyvi\u00e4 kuoppia (makropitting), laskee kuoppien lukum\u00e4\u00e4r\u00e4n ja mittaa niiden koon vakavuuden arvioimiseksi sek\u00e4 valokuvaa ne dokumentointia ja tulevien tarkastusten vertailua varten.<\/p>\n<h3>\u00d6ljyanalyysi<\/h3>\n<p>Kulutusmetallihiukkaset \u00f6ljyanalyysiss\u00e4 <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/oil-analysis\/\">oil sample<\/a> paljastaa aktiivisen materiaalin kulumisen. Ferrografia erottaa pistekorroosion hiukkasten morfologian tavanomaisesta kulumisesta, ja hiukkaspitoisuuden nousu vahvistaa, ett\u00e4 vaurio etenee eik\u00e4 ole vakiintunut.<\/p>\n<h3>Ultra\u00e4\u00e4nitestaus<\/h3>\n<p>Pistekorroosion aiheuttama pinnan karheus nostaa laakerin <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/ultrasound-analysis\/\">ultrasonic<\/a> p\u00e4\u00e4st\u00f6j\u00e4, ja kannettavat ilmaisimet pystyv\u00e4t seuraamaan niit\u00e4 ei-invasiivisesti. Ultra\u00e4\u00e4ni havaitsee ongelmat usein jo ennen kuin t\u00e4rin\u00e4oireet ovat selkeit\u00e4, mink\u00e4 vuoksi se on hy\u00f6dyllinen lis\u00e4 spektrivalvontaan.<\/p>\n<h2>3. Syyt ja ennaltaehk\u00e4isy<\/h2>\n<h3>V\u00e4symispitting<\/h3>\n<ul>\n<li><strong>Laakerin riitt\u00e4v\u00e4 nimelliskuormitus:<\/strong> valitse laakeri, jonka L10-kest\u00e4vyys ylitt\u00e4\u00e4 vaaditun k\u00e4ytt\u00f6i\u00e4n reilusti.<\/li>\n<li><strong>Oikea voitelu:<\/strong> pit\u00e4\u00e4 kalvon paksuus sopivana (lambda-suhde yli noin 3), jotta ep\u00e4tasaisuudet eiv\u00e4t kosketa toisiaan.<\/li>\n<li><strong>Puhtaus:<\/strong> est\u00e4\u00e4 likaantumista, joka naarmuttaa pintaa ja aiheuttaa j\u00e4nnityskeskittymi\u00e4.<\/li>\n<li><strong>Kohdistuminen:<\/strong> v\u00e4ltt\u00e4\u00e4 reunan kuormittumista, joka johtuu <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/misalignment\/\">ep\u00e4kohdistus<\/a>.<\/li>\n<li><strong>Kuormanohjaus:<\/strong> v\u00e4lt\u00e4 ylikuormitusta \u2014 vierint\u00e4laakerin k\u00e4ytt\u00f6ik\u00e4 lyhenee suunnilleen kuormituksen kuutioon verrannollisesti.<\/li>\n<\/ul>\n<h3>Pistekorroosio<\/h3>\n<ul>\n<li><strong>Tehokas tiivistys:<\/strong> pid\u00e4 kosteus poissa laakeripes\u00e4st\u00e4.<\/li>\n<li><strong>Oikea voiteluaine:<\/strong> k\u00e4yt\u00e4 korroosionestoaineita sis\u00e4lt\u00e4vi\u00e4 valmisteita.<\/li>\n<li><strong>Korroosionkest\u00e4v\u00e4t materiaalit:<\/strong> m\u00e4\u00e4rit\u00e4 ruostumattomat laakerit kosteisiin olosuhteisiin.<\/li>\n<li><strong>Varastoinnin suojaus:<\/strong> suojaa varaosalaakerit kosteudelta.<\/li>\n<li><strong>Kondenssiveden muodostumisen est\u00e4minen:<\/strong> v\u00e4lt\u00e4 l\u00e4mp\u00f6syklej\u00e4, jotka aiheuttavat kondenssia kotelon sis\u00e4ll\u00e4.<\/li>\n<\/ul>\n<h3>S\u00e4hk\u00f6inen pistekorroosio<\/h3>\n<p>Ennaltaehk\u00e4isy keskittyy virran pit\u00e4miseen poissa laakerista: moottorin akselin asianmukainen maadoitus taajuusmuuttajalla toimivissa moottoreissa, eristetty laakeri koneen toisessa p\u00e4\u00e4ss\u00e4, keraamiset (s\u00e4hk\u00f6\u00e4 johtamattomat) vierint\u00e4elementit sek\u00e4 yleiset toimenpiteet, joilla pyrit\u00e4\u00e4n poistamaan tai minimoimaan <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/magnetic-pull\/\">laakerivirrat<\/a>.<\/p>\n<h2>4. Hammaspy\u00f6rien pistekorroosio<\/h2>\n<p>Hammaspy\u00f6rien hampaissa pistekorroosiolla on omat erityispiirteens\u00e4. Se esiintyy hampaan sivupinnoilla kosketusalueella ja keskittyy etenkin jakolinjan l\u00e4heisyyteen, jossa vierint\u00e4 ja liukuminen yhdistyv\u00e4t maksimoiden kosketusj\u00e4nnityksen. Vaurio ilmenee lis\u00e4\u00e4ntyneen\u00e4 t\u00e4rin\u00e4n\u00e4 <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/gear-mesh-frequency\/\">hammaspy\u00f6r\u00e4n kytkent\u00e4taajuus<\/a>, usein molemmin puolin <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/sidebands\/\">sivunauhat<\/a> akselin py\u00f6rimisnopeuden tahdissa, yhdess\u00e4 \u00e4\u00e4nen s\u00e4vyn muutosten sek\u00e4 hampaiden sivupinnoilla n\u00e4kyvien kuoppien kanssa. Joissakin malleissa voidaan hyv\u00e4ksy\u00e4 v\u00e4h\u00e4inen m\u00e4\u00e4r\u00e4 niin sanottua &#8220;alkuvaiheen&#8221; pittingi\u00e4, joka saattaa jopa tasaantua pintojen sopeutuessa toisiinsa, mutta liiallinen pittingin esiintyminen pienent\u00e4\u00e4 kantavaa pinta-alaa ja johtaa lopulta hampaan murtumiseen. Hammaspy\u00f6rien kosketustaajuuden ja sen sivukaistojen seuranta sek\u00e4 s\u00e4\u00e4nn\u00f6llinen sivupintojen tarkastus muodostavat k\u00e4yt\u00e4nn\u00f6llisen tunnistusrutiinin laajemmalle vauriotyyppiperheelle <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/gear-defects\/\">vaihdevikoja<\/a>.<\/p>\n<h2>5. Vakavuuden arviointi ja p\u00e4\u00e4t\u00f6kset<\/h2>\n<p>Laakereiden osalta vaurioiden vakavuus arvioidaan yleens\u00e4 sen perusteella, kuinka suuri osa kuormitusalueesta on vaurioitunut:<\/p>\n<ul>\n<li><strong>Alkuvaihe:<\/strong> muutama hajallaan oleva mikrokuoppa, jotka kattavat alle noin 5 % kuormitusvy\u00f6hykkeest\u00e4.<\/li>\n<li><strong>Liev\u00e4:<\/strong> n\u00e4kyvi\u00e4 sy\u00f6pymi\u00e4 noin 5\u201325 prosentilla kuormitusvy\u00f6hykkeen pinta-alasta.<\/li>\n<li><strong>Kohtalainen:<\/strong> laaja pistekorroosio, joka kattaa 25\u201350 % pinnasta ja alkaa yhdisty\u00e4.<\/li>\n<li><strong>Vaikea:<\/strong> yli 50 % pinnasta on vaurioitunut, ja kuopat yhtyv\u00e4t lohkeamiksi \u2014 vaihdettava v\u00e4litt\u00f6m\u00e4sti.<\/li>\n<\/ul>\n<p>N\u00e4m\u00e4 luokitukset vastaavat selkeit\u00e4 toimenpiteit\u00e4. Alkuvaiheessa oleva tai liev\u00e4 pistekorroosio voi jatkua k\u00e4yt\u00f6ss\u00e4 seurannan alaisena; kohtalainen pistekorroosio edellytt\u00e4\u00e4 suunniteltua vaihtoa 1\u20133 kuukauden kuluessa; vakava pistekorroosio vaatii osan vaihtamista mahdollisimman pian; ja nopea eteneminen, johon liittyy voimakasta t\u00e4rin\u00e4\u00e4 tai korkeaa l\u00e4mp\u00f6tilaa, edellytt\u00e4\u00e4 <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/shutdown\/\">h\u00e4t\u00e4pys\u00e4ytys<\/a>. Asettamalla j\u00e4rkev\u00e4 her\u00e4tys ja <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/trip-level\/\">laukaisutasot<\/a> n\u00e4iden vaiheiden suhteen sek\u00e4 seuraamalla <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/trend-analysis\/\">trendi<\/a> ajan my\u00f6t\u00e4 raakamittaustuloksesta muodostuu huoltop\u00e4\u00e4t\u00f6s.<\/p>\n<h2>6. Pittingin rooli ja tasapainotuksen merkitys<\/h2>\n<p>Pitting on komponenttien kulumisen t\u00e4rke\u00e4 v\u00e4livaihe \u2013 se on vakavampaa kuin yleinen pintakuluminen, mutta usein hallittavissa, jos se havaitaan varhaisessa vaiheessa. Se esiintyy harvoin yksin\u00e4\u00e4n: reunan kuormitus johtuu kohdistusvirheist\u00e4 tai her\u00e4tetyist\u00e4 <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/resonance\/\">resonanssi<\/a> nopeuttaa v\u00e4symist\u00e4, samoin kuin roottorista johtuva dynaamisen laakerikuormituksen kasvu <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/unbalance\/\">ep\u00e4tasapaino<\/a>. Roottorin tasapainon yll\u00e4pit\u00e4minen on siten osa ennenaikaisten pistekorroosioiden ehk\u00e4isy\u00e4, ja kannettava kaksikanavainen analysaattori, kuten <a href=\"https:\/\/vibromera.eu\/fi\/tuote\/balanset-1\/\">Balanset-1A<\/a> ansaitsee paikkansa kaksinkertaisesti: se toimii <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/envelope-analysis\/\">verhok\u00e4yr\u00e4<\/a> sek\u00e4 spektridiagnostiikkaa laakereiden ja hammaspy\u00f6rien varhaisen pistekorroosion havaitsemiseksi kentt\u00e4olosuhteissa, ja se suorittaa <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/kenttatasapaino\/\">kentt\u00e4tasapainotus<\/a> joka v\u00e4hent\u00e4\u00e4 vaurioita aiheuttavia vierint\u00e4paineita. Yhdistettyn\u00e4 asianmukaiseen voiteluun, tiivistykseen ja suuntaukseen t\u00e4m\u00e4 yhdistelm\u00e4 antaa tiimille mahdollisuuden havaita pistekorroosio varhaisessa vaiheessa ja puuttua asiaan omalla aikataulullaan, hyviss\u00e4 ajoin ennen kuin tilanne etenee katastrofaaliseen lohkeiluun.<\/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 pistemuodostumasta eli laakereiden ja hammaspy\u00f6rien pienist\u00e4 pintaongelmista, jotka johtuvat v\u00e4symisest\u00e4 tai korroosiosta ja jotka voidaan havaita t\u00e4rin\u00e4n, \u00f6ljyanalyysin ja silm\u00e4m\u00e4\u00e4r\u00e4isen tarkastuksen avulla.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[109,110],"tags":[],"class_list":["post-195","glossary","type-glossary","status-publish","hentry","category-glossary","category-vibration-diagnostics"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/fi\/wp-json\/wp\/v2\/glossary\/195","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\/195\/revisions"}],"predecessor-version":[{"id":101346,"href":"https:\/\/vibromera.eu\/fi\/wp-json\/wp\/v2\/glossary\/195\/revisions\/101346"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/fi\/wp-json\/wp\/v2\/media?parent=195"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/fi\/wp-json\/wp\/v2\/categories?post=195"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/fi\/wp-json\/wp\/v2\/tags?post=195"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}