{"id":52,"date":"2025-10-31T00:25:51","date_gmt":"2025-10-31T00:25:51","guid":{"rendered":"https:\/\/vibromera.eu\/glossary\/bearing-span\/"},"modified":"2026-07-03T09:51:01","modified_gmt":"2026-07-03T09:51:01","slug":"bearing-span","status":"publish","type":"glossary","link":"https:\/\/vibromera.eu\/fi\/glossary\/bearing-span\/","title":{"rendered":"Mik\u00e4 on laakeriv\u00e4li roottorin dynamiikassa?"},"content":{"rendered":"<h1>Laakeriv\u00e4lin ymm\u00e4rt\u00e4minen roottorin dynamiikassa<\/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\/52?add-to-cart=986\" data-quantity=\"1\" data-product_id=\"986\" data-product_sku=\"BS-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"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\/52?add-to-cart=986\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_986\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"986\" data-product_sku=\"BS-1\" aria-label=\"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\/52?add-to-cart=1820\" data-quantity=\"1\" data-product_id=\"1820\" data-product_sku=\"VS-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"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\/52?add-to-cart=1820\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1820\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1820\" data-product_sku=\"VS-1\" aria-label=\"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\/52?add-to-cart=1832\" data-quantity=\"1\" data-product_id=\"1832\" data-product_sku=\"Tach-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"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\/52?add-to-cart=1832\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1832\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1832\" data-product_sku=\"Tach-1\" aria-label=\"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\/52?add-to-cart=1833\" data-quantity=\"1\" data-product_id=\"1833\" data-product_sku=\"BS-4\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"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\/52?add-to-cart=1833\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1833\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1833\" data-product_sku=\"BS-4\" aria-label=\"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\/52?add-to-cart=1852\" data-quantity=\"1\" data-product_id=\"1852\" data-product_sku=\"MS-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"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\/52?add-to-cart=1852\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1852\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1852\" data-product_sku=\"MS-1\" aria-label=\"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\/52?add-to-cart=2329\" data-quantity=\"1\" data-product_id=\"2329\" data-product_sku=\"rt-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"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\/52?add-to-cart=2329\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_2329\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"2329\" data-product_sku=\"rt-1\" aria-label=\"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\/52?add-to-cart=4193\" data-quantity=\"1\" data-product_id=\"4193\" data-product_sku=\"BS-1OEM\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"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\/52?add-to-cart=4193\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_4193\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"4193\" data-product_sku=\"BS-1OEM\" aria-label=\"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>Laakeriv\u00e4li<\/strong> \u2014 jota kutsutaan my\u00f6s laakeriv\u00e4liksi tai tukiv\u00e4liksi \u2014 on kahden p\u00e4\u00e4laakerin keski\u00f6iden v\u00e4linen et\u00e4isyys <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/roottori\/\">roottori<\/a>. Niin yksinkertaiselta kuin se kuulostaakin, t\u00e4m\u00e4 yksi ulottuvuus on yksi merkitt\u00e4vimmist\u00e4 tekij\u00f6ist\u00e4 koko <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/rotor-dynamics\/\">roottorin dynamiikka<\/a>, koska se m\u00e4\u00e4ritt\u00e4\u00e4 akselin taivutusj\u00e4ykkyytt\u00e4 <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/stiffness\/\">j\u00e4ykkyys<\/a>, ja j\u00e4ykkyys puolestaan m\u00e4\u00e4r\u00e4\u00e4 <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/critical-speed\/\">kriittiset nopeudet<\/a>, suurimmat taipumat, laakereiden kantamat kuormat sek\u00e4 roottorin koko dynaaminen k\u00e4ytt\u00e4ytyminen. Tietyll\u00e4 akselin halkaisijalla ja materiaalilla akselin pituuden pident\u00e4minen lis\u00e4\u00e4 sen joustavuutta ja alentaa sen kriittisi\u00e4 py\u00f6rimisnopeuksia; sen lyhent\u00e4minen puolestaan j\u00e4ykist\u00e4\u00e4 akselia ja nostaa niit\u00e4. Juuri t\u00e4m\u00e4 vipuvaikutus \u2013 eli suuri vaikutus pienest\u00e4 geometrisesta muutoksesta \u2013 tekee laakeriv\u00e4list\u00e4 keskeisen suunnittelup\u00e4\u00e4t\u00f6ksen eik\u00e4 vain j\u00e4lkik\u00e4teen tehdyn valinnan.<\/p>\n<h2>1. M\u00e4\u00e4ritelm\u00e4 ja perusperiaatteet<\/h2>\n<p>Kahden tuen v\u00e4liss\u00e4 akseli k\u00e4ytt\u00e4ytyy kuin vapaatuettu palkki, ja samaa mekaniikkaa, joka p\u00e4tee kaikkiin palkkeihin, sovelletaan my\u00f6s roottoriin. J\u00e4nnev\u00e4li on palkin pituus, ja koska palkin taipuma on pituuden kuutioon verrannollinen, roottorin taipuisuus on eritt\u00e4in herkk\u00e4 laakereiden sijoituspaikalle. Kaikki seuraava \u2013 kriittiset nopeudet, taipumarajat, laakerikuormitukset \u2013 johtuu t\u00e4st\u00e4 kuutiosuhteesta, joten se on syyt\u00e4 selvitt\u00e4\u00e4 huolellisesti ennen suunnittelup\u00e4\u00e4t\u00f6sten tekemist\u00e4.<\/p>\n<h2>2. Vaikutus roottorin j\u00e4ykkyyteen<\/h2>\n<h3>Palkin ja mekaniikan v\u00e4linen suhde<\/h3>\n<p>Laakereiden v\u00e4lisen akselin j\u00e4ykkyys noudattaa palkin perusyht\u00e4l\u00f6\u00e4:<\/p>\n<blockquote><p><strong>Taipuma \u221d L\u00b3 \/ (E \u00d7 I)<\/strong><\/p><\/blockquote>\n<ul>\n<li><strong>L<\/strong> = j\u00e4nnev\u00e4li (pituus).<\/li>\n<li><strong>E<\/strong> = materiaalin kimmokerroin.<\/li>\n<li><strong>I<\/strong> = akselin poikkileikkauksen hitausmomentti, joka on suoraan verrannollinen halkaisijan nelj\u00e4nteen potenssiin.<\/li>\n<li><strong>Keskeinen n\u00e4kemys:<\/strong> taipuma \u2014 ja siten joustavuus \u2014 kasvaa <em>kuutioon<\/em> of the span.<\/li>\n<\/ul>\n<h3>K\u00e4yt\u00e4nn\u00f6n vaikutukset<\/h3>\n<ul>\n<li>Laakeriv\u00e4lin kaksinkertaistaminen kasvattaa taipumaa kahdeksankertaiseksi (2\u00b3 = 8).<\/li>\n<li>J\u00e4nnev\u00e4lin lyhent\u00e4minen 25 prosentilla v\u00e4hent\u00e4\u00e4 taipumaa noin 58 prosenttia.<\/li>\n<li>Pienet muutokset laakerin sijainnissa voivat vaikuttaa j\u00e4ykkyyteen huomattavasti.<\/li>\n<li>Pitkien roottorien kohdalla j\u00e4nnev\u00e4li on tehokkaampi vaikuttava tekij\u00e4 kuin akselin halkaisija \u2014 tosin koska I on verrannollinen halkaisijan nelj\u00e4nteen potenssiin, halkaisija on vaikuttavampi tekij\u00e4, kun molempia voidaan muuttaa.<\/li>\n<\/ul>\n<h2>3. Vaikutus kriittisiin nopeuksiin<\/h2>\n<h3>Perussuhde<\/h3>\n<p>Yksinkertaisen roottorin \u2013 tasaisen akselin, jonka keskelle massa on keskittynyt \u2013 osalta ensimm\u00e4inen <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/natural-frequency\/\">ominaistaajuus<\/a> on suunnilleen:<\/p>\n<ul>\n<li><strong>f \u221d \u221a(k\/m)<\/strong>, jossa k on akselin j\u00e4ykkyys ja m roottorin massa.<\/li>\n<li>Koska j\u00e4ykkyys on verrannollinen 1\/L\u00b3:een, t\u00e4st\u00e4 seuraa, ett\u00e4 <strong>f \u221d 1\/L<sup>3\/2<\/sup><\/strong>.<\/li>\n<li><strong>K\u00e4yt\u00e4nn\u00f6n s\u00e4\u00e4nt\u00f6:<\/strong> ensimm\u00e4inen kriittinen nopeus vaihtelee k\u00e4\u00e4nteisesti laakeriv\u00e4lin 1,5:n potenssin mukaan.<\/li>\n<\/ul>\n<h3>Suunnitteluun liittyv\u00e4t vaikutukset<\/h3>\n<ul>\n<li><strong>Shorter span:<\/strong> suuremmat kriittiset py\u00f6rimisnopeudet, j\u00e4ykempi roottori, joka sopii paremmin suurten nopeuksien k\u00e4ytt\u00f6\u00f6n.<\/li>\n<li><strong>Longer span:<\/strong> alhaisemmat kriittiset py\u00f6rimisnopeudet, joustavampi roottori, jonka on mahdollisesti toimittava <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/flexible-rotor\/\">joustava roottori<\/a>.<\/li>\n<li><strong>Optimisation:<\/strong> kompromissi saavutettavuuden (pidempi j\u00e4nnev\u00e4li helpottaa kokoonpanoa) ja j\u00e4ykkyyden (lyhyempi j\u00e4nnev\u00e4li toimii paremmin dynaamisesti) v\u00e4lill\u00e4.<\/li>\n<\/ul>\n<h3>Toimiva esimerkki<\/h3>\n<p>Otetaan esimerkiksi moottorin roottori, jonka ensimm\u00e4inen kriittinen py\u00f6rimisnopeus on 3000 r\/min laakeriv\u00e4lin ollessa 500 mm:<\/p>\n<ul>\n<li>Lis\u00e4\u00e4 j\u00e4nnev\u00e4li 600 mm:iin (20 %:n lis\u00e4ys).<\/li>\n<li>Kriittinen nopeus laskee arvoon 3000 \/ (600\/500)<sup>1.5<\/sup> \u2248 2280 RPM.<\/li>\n<li>Tuo 24%:n pudotus voisi siirt\u00e4\u00e4 kriittisen nopeuden vaarallisen l\u00e4helle k\u00e4ytt\u00f6nopeutta \u2014 juuri sellainen muutos, joka kannattaa tarkistaa py\u00f6rimisnopeutta vasten k\u00e4ytt\u00e4m\u00e4ll\u00e4 <a href=\"https:\/\/vibromera.eu\/fi\/calculators\/rotor-critical-speed\/\">Roottorin kriittisen nopeuden laskin<\/a>.<\/li>\n<\/ul>\n<h2>4. Suunnitteluun liittyv\u00e4t seikat<\/h2>\n<p>Laakereiden sijoittaminen tarkoittaa useiden kesken\u00e4\u00e4n ristiriitaisten vaatimusten sovittamista yhteen samanaikaisesti.<\/p>\n<h3>Mekaaniset rajoitukset<\/h3>\n<ul>\n<li>Koneen rungon ja kotelon mitat.<\/li>\n<li>Roottorin osien, kuten juoksupy\u00f6rien ja kytkinten, sijainnit.<\/li>\n<li>P\u00e4\u00e4sy huolto- ja asennust\u00f6ihin.<\/li>\n<li>Kytkent\u00e4- ja k\u00e4ytt\u00f6vaatimukset.<\/li>\n<\/ul>\n<h3>Roottorin dynaamiset vaatimukset<\/h3>\n<ul>\n<li><strong>Kriittisen nopeuden erottelu:<\/strong> aseta laakerit siten, ett\u00e4 kriittiset py\u00f6rimisnopeudet ovat \u00b120\u201330 % et\u00e4isyydell\u00e4 k\u00e4ytt\u00f6nopeudesta.<\/li>\n<li><strong>J\u00e4ykk\u00e4 vai joustava:<\/strong> lyhyempi j\u00e4nnev\u00e4li pit\u00e4\u00e4 roottorin <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/rigid-rotor\/\">j\u00e4ykk\u00e4<\/a>; pidempi j\u00e4nnev\u00e4li voi pakottaa toimimaan joustavana roottorina.<\/li>\n<li><strong>Taipumarajat:<\/strong> pid\u00e4 suurin taipuma alle sen pisteen, jossa se aiheuttaa hankausta tai tiivisteen vaurioitumista.<\/li>\n<li><strong>Laakerikuormat:<\/strong> Pidemm\u00e4t j\u00e4nnev\u00e4lit pienent\u00e4v\u00e4t staattisia laakerikuormia tietyn roottorin painon ollessa kyseess\u00e4.<\/li>\n<\/ul>\n<h3>Valmistus ja kokoonpano<\/h3>\n<ul>\n<li>Pidemm\u00e4t j\u00e4nnev\u00e4lit tarjoavat enemm\u00e4n tilaa tasapainottamiseen ja kokoonpanoon.<\/li>\n<li>Laakerien suuntaus on helpompaa, kun j\u00e4nnev\u00e4li on avoin ja n\u00e4kyviss\u00e4.<\/li>\n<li>Lyhyemm\u00e4t j\u00e4nnev\u00e4lit ovat kompaktimpia ja vaativat v\u00e4hemm\u00e4n runkomateriaalia.<\/li>\n<\/ul>\n<h2>5. Vaikutus laakerikuormituksiin<\/h2>\n<h3>Staattisen kuormituksen jakautuminen<\/h3>\n<p>Laakeriv\u00e4li m\u00e4\u00e4r\u00e4\u00e4, miten roottorin paino ja voimat jakautuvat kahden tuen v\u00e4lill\u00e4:<\/p>\n<ul>\n<li><strong>Longer span:<\/strong> pienemm\u00e4t laakerikuormitukset samalla roottorin painolla pidemm\u00e4n vipuvarren ansiosta.<\/li>\n<li><strong>Shorter span:<\/strong> suuremmat yksitt\u00e4iset kuormat, mutta tasaisempi jakautuminen.<\/li>\n<li><strong>Ylikuormitukset:<\/strong> vaikutus <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/overhung-rotor\/\">ulokkeellinen osa<\/a> vahvistuu, kun j\u00e4nnev\u00e4li pitenee.<\/li>\n<\/ul>\n<h3>Ep\u00e4tasapainosta johtuvat dynaamiset kuormitukset<\/h3>\n<ul>\n<li>Dynaamiset laakerikuormat johtuen <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/unbalance\/\">ep\u00e4tasapaino<\/a> riippuu taipumasta.<\/li>\n<li>Pidempi j\u00e4nnev\u00e4li mahdollistaa suuremman taipuman, mik\u00e4 voi pienent\u00e4\u00e4 laakeriin kohdistuvaa kuormitusta.<\/li>\n<li>Mutta juuri t\u00e4m\u00e4 taipuma lis\u00e4\u00e4 v\u00e4r\u00e4htelyn amplitudia.<\/li>\n<li>Suunnittelija joutuu siis tekem\u00e4\u00e4n kompromissin laakerin k\u00e4ytt\u00f6i\u00e4n ja t\u00e4rin\u00e4tason v\u00e4lill\u00e4 \u2014 tasapaino, joka on hyv\u00e4 <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/tasapainottaminen\/\">tasapainottaminen<\/a> muuttaa tilannetta kaikkien eduksi v\u00e4hent\u00e4m\u00e4ll\u00e4 itse her\u00e4tett\u00e4.<\/li>\n<\/ul>\n<h2>6. Suhde akselin halkaisijaan<\/h2>\n<p>V\u00e4li\u00e4 ei valita koskaan erill\u00e4\u00e4n; se on otettava huomioon yhdess\u00e4 akselin halkaisijan kanssa.<\/p>\n<h3>J\u00e4nnev\u00e4lin ja halkaisijan suhde (L\/D)<\/h3>\n<ul>\n<li><strong>L\/D &lt; 5:<\/strong> eritt\u00e4in j\u00e4ykk\u00e4, ja j\u00e4yk\u00e4n roottorin k\u00e4ytt\u00e4ytyminen on s\u00e4\u00e4nt\u00f6n\u00e4.<\/li>\n<li><strong>5 &lt; L\/D &lt; 20:<\/strong> kohtalainen joustavuus, joka kattaa suurimman osan teollisuuskoneista.<\/li>\n<li><strong>L\/D &gt; 20:<\/strong> eritt\u00e4in joustava, jolloin joustavan roottorin ominaisuudet ovat ratkaisevan t\u00e4rkeit\u00e4.<\/li>\n<\/ul>\n<h3>Optimointistrategia<\/h3>\n<ul>\n<li><strong>Fixed span:<\/strong> suurentaa halkaisijaa kriittisten py\u00f6rimisnopeuksien nostamiseksi.<\/li>\n<li><strong>Kiinte\u00e4 halkaisija:<\/strong> lyhenn\u00e4 j\u00e4nnev\u00e4li\u00e4 niiden nostamiseksi.<\/li>\n<li><strong>Yhdistetty optimointi:<\/strong> s\u00e4\u00e4d\u00e4 molempia niin, ett\u00e4 sek\u00e4 kriittisen nopeuden ett\u00e4 taipuman tavoitteet saavutetaan samanaikaisesti.<\/li>\n<li><strong>K\u00e4yt\u00e4nn\u00f6n raja:<\/strong> tilanpuutteen vuoksi yleens\u00e4 yksi parametri m\u00e4\u00e4ritet\u00e4\u00e4n kiinte\u00e4ksi, jolloin toinen j\u00e4\u00e4 ainoaksi vapaaksi muuttujaksi.<\/li>\n<\/ul>\n<h2>7. Monilaakeriset kokoonpanot<\/h2>\n<h3>Vakiomallinen kaksilaakeroitu tuki<\/h3>\n<ul>\n<li>Yleisin j\u00e4rjestely.<\/li>\n<li>J\u00e4rjestelm\u00e4n m\u00e4\u00e4ritt\u00e4\u00e4 yksi j\u00e4nnev\u00e4li.<\/li>\n<li>Analysointi ja suunnittelu ovat suoraviivaisia.<\/li>\n<\/ul>\n<h3>Monilaakerij\u00e4rjestelm\u00e4t<\/h3>\n<p>Roottoreissa, joissa on enemm\u00e4n kuin kaksi laakeria, on otettava huomioon useampi kuin yksi j\u00e4nnev\u00e4li:<\/p>\n<ul>\n<li><strong>Kolme laakeria:<\/strong> kaksi j\u00e4nnev\u00e4li\u00e4 \u2013 esimerkiksi moottori, jossa on ylim\u00e4\u00e4r\u00e4inen keskilaakeri.<\/li>\n<li><strong>Nelj\u00e4 tai enemm\u00e4n:<\/strong> useita j\u00e4nnev\u00e4lej\u00e4, jotka edellytt\u00e4v\u00e4t monimutkaisempaa analyysia.<\/li>\n<li><strong>Tehokas j\u00e4nnev\u00e4li:<\/strong> v\u00e4r\u00e4htelyt\u00f6iss\u00e4, kukin <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/mode-shape\/\">moodimuoto<\/a> voi olla oma tehokas j\u00e4nnev\u00e4li.<\/li>\n<li><strong>Kytketty dynamiikka:<\/strong> j\u00e4nnev\u00e4lit vaikuttavat toisiinsa ja muokkaavat j\u00e4rjestelm\u00e4n kokonaisk\u00e4ytt\u00e4ytymist\u00e4.<\/li>\n<\/ul>\n<h2>8. Mittaus, todentaminen ja j\u00e4lkiasennukset<\/h2>\n<h3>Toteutunut tarkistus<\/h3>\n<ul>\n<li>Mittaa laakerin todellinen j\u00e4nnev\u00e4li asennuksen yhteydess\u00e4.<\/li>\n<li>Varmista, ett\u00e4 se vastaa suunnittelum\u00e4\u00e4rityksi\u00e4, yleens\u00e4 \u00b15 mm:n tarkkuudella.<\/li>\n<li>Kirjaa toteutuneet mitat roottorin dynamiikkalaskelmia varten.<\/li>\n<li>Tarkista laakereiden keskilinjojen kohdistus.<\/li>\n<\/ul>\n<h3>Asennusvaihteluiden vaikutus<\/h3>\n<ul>\n<li>Laakerien asennon virheet muuttavat ennustettuja kriittisi\u00e4 py\u00f6rimisnopeuksia.<\/li>\n<li>V\u00e4\u00e4r\u00e4 kohdistus aiheuttaa ylim\u00e4\u00e4r\u00e4isi\u00e4 kuormituksia.<\/li>\n<li>Perustuksen vajoaminen voi muuttaa j\u00e4nnev\u00e4li\u00e4 ajan my\u00f6t\u00e4.<\/li>\n<li>L\u00e4mp\u00f6laajeneminen voi muuttaa j\u00e4nnev\u00e4li\u00e4 k\u00e4ytt\u00f6l\u00e4mp\u00f6tilassa.<\/li>\n<\/ul>\n<h3>Milloin laakeriv\u00e4li\u00e4 on muutettava<\/h3>\n<p>Laakerin uudelleensijoittamista harkitaan, kun:<\/p>\n<ul>\n<li>Kone py\u00f6rii liian l\u00e4hell\u00e4 kriittist\u00e4 nopeutta.<\/li>\n<li>Liiallinen akselin taipuma, joka aiheuttaa hankausta tai tiivisteongelmia<\/li>\n<li>Laakereiden kuormitus on liian suuri tai jakautuu ep\u00e4tasaisesti.<\/li>\n<li>Suunnittelu vaihtelee j\u00e4yk\u00e4n ja joustavan roottorin k\u00e4yt\u00f6n v\u00e4lill\u00e4.<\/li>\n<\/ul>\n<h3>J\u00e4nnev\u00e4lin muuttamisen haasteet<\/h3>\n<ul>\n<li><strong>Rakenteelliset muutokset:<\/strong> runkoon tai koteloon saattaa joutua tekem\u00e4\u00e4n muutoksia.<\/li>\n<li><strong>Vaikutus linjaukseen:<\/strong> Laakerin siirt\u00e4minen vaikuttaa kohdistukseen k\u00e4ytt\u00f6laitteeseen n\u00e4hden.<\/li>\n<li><strong>Kustannus:<\/strong> merkitt\u00e4vien muutost\u00f6iden kustannukset on perusteltava niiden tuottamalla hy\u00f6dyll\u00e4.<\/li>\n<li><strong>Vahvistus:<\/strong> parannuksen varmistamiseksi tarvitaan testaus \u2013 mukaan lukien j\u00e4\u00e4nn\u00f6sep\u00e4tasapainon uudelleentarkastus <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/vibration\/\">t\u00e4rin\u00e4<\/a> muutoksen j\u00e4lkeen. Kannettava analysaattori, kuten <a href=\"https:\/\/vibromera.eu\/fi\/tuote\/balanset-1\/\">Balanset-1A<\/a> tekee vahvistamisen suoraviivaiseksi, sill\u00e4 se tallentaa laakerin t\u00e4rin\u00e4n ja kriittisen py\u00f6rimisnopeuden k\u00e4ytt\u00e4ytymisen paikan p\u00e4\u00e4ll\u00e4, jolloin j\u00e4lkiasennus voidaan hyv\u00e4ksy\u00e4 mitattujen tietojen perusteella eik\u00e4 pelk\u00e4st\u00e4\u00e4n ennusteiden varaan.<\/li>\n<\/ul>\n<p>Laakeriv\u00e4li on keskeinen geometrinen parametri, joka vaikuttaa ratkaisevasti roottorin dynaamiseen k\u00e4ytt\u00e4ytymiseen. Sen oikea valinta suunnitteluvaiheessa ja tarkka tarkistaminen asennuksen yhteydess\u00e4 ovat olennaisen t\u00e4rkeit\u00e4, jotta saavutetaan riitt\u00e4v\u00e4 marginaali kriittisiin nopeuksiin n\u00e4hden, hyv\u00e4ksytt\u00e4v\u00e4t t\u00e4rin\u00e4tasot ja luotettava pitk\u00e4aikainen toiminta, joista jokainen py\u00f6riv\u00e4 kone on riippuvainen.<\/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 laakeriv\u00e4list\u00e4 eli roottorin tukilaakereiden v\u00e4lisest\u00e4 et\u00e4isyydest\u00e4, joka vaikuttaa kriittisesti akselin j\u00e4ykkyyteen, kriittisiin nopeuksiin ja taipumaominaisuuksiin py\u00f6riviss\u00e4 koneissa.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[109,111],"tags":[],"class_list":["post-52","glossary","type-glossary","status-publish","hentry","category-glossary","category-rotor-balancing"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/fi\/wp-json\/wp\/v2\/glossary\/52","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":2,"href":"https:\/\/vibromera.eu\/fi\/wp-json\/wp\/v2\/glossary\/52\/revisions"}],"predecessor-version":[{"id":102151,"href":"https:\/\/vibromera.eu\/fi\/wp-json\/wp\/v2\/glossary\/52\/revisions\/102151"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/fi\/wp-json\/wp\/v2\/media?parent=52"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/fi\/wp-json\/wp\/v2\/categories?post=52"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/fi\/wp-json\/wp\/v2\/tags?post=52"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}