{"id":20649,"date":"2025-10-31T00:25:51","date_gmt":"2025-10-31T00:25:51","guid":{"rendered":"https:\/\/vibromera.eu\/glossary\/rolling-element-defects\/"},"modified":"2026-05-23T22:52:59","modified_gmt":"2026-05-23T22:52:59","slug":"rolling-element-defects","status":"publish","type":"glossary","link":"https:\/\/vibromera.eu\/hr\/glossary\/rolling-element-defects\/","title":{"rendered":"\u0160to su defekti kotrljaju\u0107ih elemenata? O\u0161te\u0107enje kuglica i valjaka"},"content":{"rendered":"<h1>Razumijevanje nedostataka kotrljaju\u0107ih elemenata<\/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\/hr\/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\/hr\/product\/balanset-1\/\" title=\"Prijenosni balanser &amp; analizator vibracija 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 kompletan set prijenosnog balansera i analizatora vibracija\" 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\/hr\/product-category\/devices\/\" rel=\"tag\">ure\u0111aji<\/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\/hr\/product\/balanset-1\/\" title=\"Prijenosni balanser &amp; analizator vibracija Balanset-1A\">Portable balancer &amp; Vibration analyzer Balanset-1A<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>1,975.00<\/span> + PDV (ako je primjenjivo)<\/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=\"\/hr\/wp-json\/wp\/v2\/glossary\/20649?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=\"Dodaj u ko\u0161aricu\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Dodaj u ko\u0161aricu\" 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=\"\/hr\/wp-json\/wp\/v2\/glossary\/20649?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=\"Dodaj u ko\u0161aricu: \u201cPortable balancer &amp; Vibration analyzer Balanset-1A\u201d\" rel=\"nofollow\" data-success_message=\"&quot;Portable balancer &amp; Vibration analyzer Balanset-1A&quot; je dodan u va\u0161u ko\u0161aricu\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Dodaj u ko\u0161aricu<\/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\/hr\/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\/hr\/product\/vibration-sensor\/\" title=\"senzor vibracija\">\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=\"Detalj senzora vibracija Balanset-1A\" 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\/hr\/product-category\/parts\/\" rel=\"tag\">dijelovi<\/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\/hr\/product\/vibration-sensor\/\" title=\"senzor vibracija\">senzor vibracija<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>90.00<\/span> + PDV (ako je primjenjivo)<\/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=\"\/hr\/wp-json\/wp\/v2\/glossary\/20649?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=\"Dodaj u ko\u0161aricu\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Dodaj u ko\u0161aricu\" 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=\"\/hr\/wp-json\/wp\/v2\/glossary\/20649?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=\"Dodaj u ko\u0161aricu: \u201cVibration sensor\u201d\" rel=\"nofollow\" data-success_message=\"&quot;Vibration sensor&quot; je dodan u va\u0161u ko\u0161aricu\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Dodaj u ko\u0161aricu<\/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\/hr\/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\/hr\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Opti\u010dki senzor (laserski tahometar)\">\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=\"Opti\u010dki senzor (laserski tahometar)\" 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\/hr\/product-category\/parts\/\" rel=\"tag\">dijelovi<\/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\/hr\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Opti\u010dki senzor (laserski tahometar)\">Opti\u010dki senzor (laserski tahometar)<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>124.00<\/span> + PDV (ako je primjenjivo)<\/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=\"\/hr\/wp-json\/wp\/v2\/glossary\/20649?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=\"Dodaj u ko\u0161aricu\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Dodaj u ko\u0161aricu\" 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=\"\/hr\/wp-json\/wp\/v2\/glossary\/20649?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=\"Dodaj u ko\u0161aricu: \u201cOptical Sensor (Laser Tachometer)\u201d\" rel=\"nofollow\" data-success_message=\"&quot;Optical Sensor (Laser Tachometer)&quot; je dodan u va\u0161u ko\u0161aricu\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Dodaj u ko\u0161aricu<\/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\/hr\/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\/hr\/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 komplet za balansiranje rotora: torba za no\u0161enje, vi\u0161ekanalni pretvara\u010d signala, ru\u010dni analizator, magnetska baza, senzori vibracija i spiralni kabeli.\" 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\/hr\/product-category\/devices\/\" rel=\"tag\">ure\u0111aji<\/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\/hr\/product\/balanset-4\/\" title=\"Balanset-4\">Balanset-4<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>6,803.00<\/span> + PDV (ako je primjenjivo)<\/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=\"\/hr\/wp-json\/wp\/v2\/glossary\/20649?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=\"Dodaj u ko\u0161aricu\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Dodaj u ko\u0161aricu\" 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=\"\/hr\/wp-json\/wp\/v2\/glossary\/20649?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=\"Dodaj u ko\u0161aricu: \u201cBalanset-4\u201d\" rel=\"nofollow\" data-success_message=\"&quot;Balanset-4&quot; je dodan u va\u0161u ko\u0161aricu\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Dodaj u ko\u0161aricu<\/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\/hr\/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\/hr\/product\/magnet-stand\/\" title=\"Magnetski stalak Insize nosivosti 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=\"Magnetska baza.\" 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\/hr\/product-category\/parts\/\" rel=\"tag\">dijelovi<\/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\/hr\/product\/magnet-stand\/\" title=\"Magnetski stalak Insize nosivosti 60 kgf\">Magnetski stalak Insize nosivosti 60 kgf<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>46.00<\/span> + PDV (ako je primjenjivo)<\/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=\"\/hr\/wp-json\/wp\/v2\/glossary\/20649?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=\"Dodaj u ko\u0161aricu\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Dodaj u ko\u0161aricu\" 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=\"\/hr\/wp-json\/wp\/v2\/glossary\/20649?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=\"Dodaj u ko\u0161aricu: \u201cMagnetic Stand Insize-60-kgf\u201d\" rel=\"nofollow\" data-success_message=\"&quot;Magnetic Stand Insize-60-kgf&quot; je dodan u va\u0161u ko\u0161aricu\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Dodaj u ko\u0161aricu<\/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\/hr\/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\/hr\/product\/reflective-tape\/\" title=\"Reflektiraju\u0107a traka\">\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=\"Reflektiraju\u0107a traka\" 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\/hr\/product-category\/parts\/\" rel=\"tag\">dijelovi<\/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\/hr\/product\/reflective-tape\/\" title=\"Reflektiraju\u0107a traka\">Reflektiraju\u0107a traka<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>10.00<\/span> + PDV (ako je primjenjivo)<\/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=\"\/hr\/wp-json\/wp\/v2\/glossary\/20649?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=\"Dodaj u ko\u0161aricu\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Dodaj u ko\u0161aricu\" 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=\"\/hr\/wp-json\/wp\/v2\/glossary\/20649?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=\"Dodaj u ko\u0161aricu: \u201cReflective tape\u201d\" rel=\"nofollow\" data-success_message=\"&quot;Reflective tape&quot; je dodan u va\u0161u ko\u0161aricu\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Dodaj u ko\u0161aricu<\/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\/hr\/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\/hr\/product\/dynamic-balancer-balanset-1a\/\" title=\"Dinami\u010dki balanser \u201cBalanset-1A\u201d OEM\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Sadr\u017eaj kompleta Balanset-1A s jedinicom za su\u010delje, senzorima, tahometrom i dodacima\" 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\/hr\/product-category\/devices\/\" rel=\"tag\">ure\u0111aji<\/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\/hr\/product\/dynamic-balancer-balanset-1a\/\" title=\"Dinami\u010dki balanser \u201cBalanset-1A\u201d OEM\">Dinami\u010dki balanser \u201cBalanset-1A\u201d OEM<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>1,735.00<\/span> + PDV (ako je primjenjivo)<\/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=\"\/hr\/wp-json\/wp\/v2\/glossary\/20649?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=\"Dodaj u ko\u0161aricu\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Dodaj u ko\u0161aricu\" 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=\"\/hr\/wp-json\/wp\/v2\/glossary\/20649?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=\"Dodaj u ko\u0161aricu: \u201cDynamic balancer \u201cBalanset-1A\u201d OEM\u201d\" rel=\"nofollow\" data-success_message=\"&quot;Dynamic balancer \u201cBalanset-1A\u201d OEM&quot; je dodan u va\u0161u ko\u0161aricu\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Dodaj u ko\u0161aricu<\/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>Defekti kotrljaju\u0107ih elemenata<\/strong> su o\u0161te\u0107enja, gre\u0161ke ili nepravilnosti na kuglicama ili valjcima le\u017eaja s valju\u0107im elementima. Uklju\u010duju povr\u0161inska pljuskanja, pukotine, ukalupljene kontaminacije, uklju\u010denja materijala, koroziju i geometrijske nepravilnosti. Kada o\u0161te\u0107ena kuglica ili valjak rotira kroz le\u017eaj, udaraju i unutarnje i vanjske staznica, generiraju\u0107i <a href=\"https:\/\/vibromera.eu\/hr\/glossary\/vibration\/\">vibracija<\/a> na <a href=\"https:\/\/vibromera.eu\/hr\/glossary\/bsf\/\">frekvencija vrtnje kuglice (BSF)<\/a> s karakteristi\u010dnom <a href=\"https:\/\/vibromera.eu\/hr\/glossary\/sidebands\/\">bo\u010dni pojasevi<\/a> raspore\u0111ene na <a href=\"https:\/\/vibromera.eu\/hr\/glossary\/ftf\/\">kavezom, ili osnovnom frekvencijom (FTF)<\/a>. Defekti valju\u0107ih elemenata su jedan od \u010detiri klasi\u010dna lokalizirana <a href=\"https:\/\/vibromera.eu\/hr\/glossary\/bearing-defects\/\">kvarovi le\u017eaja<\/a>, zajedno s gre\u0161kama unutarnje staznice, vanjske staznice i kaveza.<\/p>\n<p>Manje su \u010desti od defekta staznice, \u010dine\u0107i otprilike 10\u201315% kvarova le\u017eaja, ali kada se dogode stvaraju karakteristi\u010dnu, ponekad zbunjuju\u0107u signaturu i mogu se brzo razviti do potpunog kvara le\u017eaja. Budu\u0107i da se gre\u0161ka rotira s elementom umjesto da ostane fiksna u zoni optere\u0107enja, njezina vibracija se pona\u0161a druga\u010dije od gre\u0161ke staznice \u2014 osobitost koja je istodobno dijagnosti\u010dki vodi\u010d i problem pra\u0107enja trenda.<\/p>\n<h2>1. Definicija: \u0160to su defekti valju\u0107ih elemenata?<\/h2>\n<p>Valju\u0107i element \u2014 kuglica u kuglastom le\u017eaju, cilindar, igla ili sto\u017easti valjak u valjnom le\u017eaju \u2014 je komponenta koja stvarno nosi optere\u0107enje izme\u0111u dvije staznice dok se kotrlja. Njegova je povr\u0161ina precizno obra\u0111ena, hladno o\u010dvr\u0161\u0107ena povr\u0161ina le\u017eajnog \u010delika koja mora ostati geometrijski savr\u0161ena da bi se kotrljala \u010disto. Svaki prekid te povr\u0161ine, ro\u0111en u \u010deli\u010dani ili uzrokovan tijekom rada, postaje poja\u010diva\u010d naprezanja i izvor udara.<\/p>\n<p>Svaki put kada defekt na elementu kontaktira staznici, stvara mali impuls. Tijekom punog okreta kaveza element kontaktira vanjsku staznici jednom i unutarnju staznici jednom, pa jedan defekt obi\u010dno generira dva udarca po rotaciji elementa \u2014 zbog \u010dega je drugi harmonik, 2\u00d7BSF, tako istaknut u spektru. Brzina ponavljanja tih udarca je fiksna geometrijom le\u017eaja (promjer kuglice, promjer nagiba, kut kontakta i broj elemenata), \u0161to gre\u0161ki daje izra\u010dunljivu frekvenciju signature koja je neosporno druga\u010dija od <a href=\"https:\/\/vibromera.eu\/hr\/glossary\/running-speed\/\">radna brzina<\/a> ili njegov <a href=\"https:\/\/vibromera.eu\/hr\/glossary\/harmonics\/\">harmonici<\/a>.<\/p>\n<h2>2. Vrste defekta valju\u0107ih elemenata<\/h2>\n<h3>Povr\u0161inski ljuskasti lomovi<\/h3>\n<p>Naj\u010de\u0161\u0107i defekt valju\u0107eg elementa. Umaranje od valju\u0107eg kontakta uzrokuje odlomak materijala koji se odvaja od povr\u0161ine, ostavljaju\u0107i krater ili rupu. Pljuskanja su tipi\u010dno \u0161iroka 0,5\u20133 mm na po\u010detku, ali rastu jer o\u0161tri rubovi \u0161upljine tu\u010du staznice i odbacuju dodatni otpad. Svaki prolazak pljuskanja preko staznice proizvodi udar, generiraju\u0107i vibraciju na BSF i \u010desto dominantnom 2\u00d7BSF. (Vidi <a href=\"https:\/\/vibromera.eu\/hr\/glossary\/spalling\/\">lju\u0161tenje<\/a> za temeljni mehanizam zamora.)<\/p>\n<h3>Pukotine<\/h3>\n<p>Pukotine nastaju od preoptere\u0107enja, udarnih o\u0161te\u0107enja ili zamora, te mogu biti povr\u0161inski ili podpovr\u0161inski. Pukotina se propagira dok se komad ne odvoji \u2014 u kojem trenutku postaje pljuskanje. Pukotine je te\u0161ko otkriti prije nego \u0161to se to dogodi, a u te\u0161kim slu\u010dajevima kuglica mo\u017ee puknuti i fragmentirati, \u0161to izaziva nagli katastrofalni kvar.<\/p>\n<h3>Uklju\u010denja materijala<\/h3>\n<p>Proizvodna gre\u0161ka: strani materijal ili \u0161upljina zarobljeni u le\u017eajnom \u010deliku. Uklju\u010denja stvaraju koncentraciju naprezanja koja po\u010dinje preuranjen zamor, obi\u010dno nedosti\u017ean sve dok se pljuskanje ne razvije oko uklju\u010denja. \u010cist le\u017eajni \u010delik visoke kvalitete je jedina stvarna prevencija.<\/p>\n<h3>Ukalupljena kontaminacija<\/h3>\n<p>Tvrde \u010destice \u2014 prljav\u0161tina, bru\u0161ni pijesak, metalnih \u010dipova \u2014 pritisnute u povr\u0161inu elementa stvaraju izbo\u010dinu koja pada staznice na svakom prolazu. Udubljenje postaje i poja\u010diva\u010d naprezanja koji mo\u017ee zapo\u010deti pljuskanje. Rezultat je vibracija udarca na BSF, a uzrok je gotovo uvijek neadekvatna brtva ili filtracija, isti niz doga\u0111aja obra\u0111en u <a href=\"https:\/\/vibromera.eu\/hr\/glossary\/bearing-lubrication\/\">podmazivanje le\u017eaja<\/a> \u010disto\u0107e.<\/p>\n<h3>Korozija i vla\u017ena o\u0161te\u0107enja<\/h3>\n<p>Voda ili kondenzacija stvaraju mrlje hr\u0111e, <a href=\"https:\/\/vibromera.eu\/hr\/glossary\/pitting\/\">korozija<\/a>i hrapavost povr\u0161ine. Korodirane povr\u0161ine djeluju kao mjesta inicijacije zamaranja. Pravilno brtvljenje i maziva inhibirana od korozije to sprje\u010davaju.<\/p>\n<h3>Brinelliranje i udubine<\/h3>\n<p>Udarno optere\u0107enje \u2014 pad le\u017eaja, \u0161ok tijekom rukovanja ili stati\u010dko preoptere\u0107enje \u2014 ostavljaju trajne udubine u povr\u0161ini elemenata. La\u017eno brinelliranje mo\u017ee nastati i od vibracija kad je stroj neaktivan. Te udubine stvaraju udare i koncentriranja naprezanja; pa\u017eljivo rukovanje i ispravna monta\u017ea su rje\u0161enje.<\/p>\n<h2>3. Vibracijska potpisa<\/h2>\n<h3>Frekvencijski sadr\u017eaj<\/h3>\n<p>Defekti elemenata valjanja stvaraju prepoznatljivi uzorak u <a href=\"https:\/\/vibromera.eu\/hr\/glossary\/spectrum\/\">spektar vibracija<\/a>:<\/p>\n<ul>\n<li><strong>Primarna frekvencija:<\/strong> BSF, obi\u010dno 2\u20133\u00d7 brzina rada.<\/li>\n<li><strong>Sna\u017ena druga harmonika:<\/strong> 2\u00d7BSF je \u010desto ve\u0107a od osnovne, jer defekt poga\u0111a obje trke tijekom svake rotacije elemenata.<\/li>\n<li><strong>Razmak bo\u010dnih traka:<\/strong> FTF (frekvencija kaveza) bo\u010dne trake \u2014 <em>ne<\/em> 1\u00d7 bo\u010dne trake. Ovo je klju\u010dni diskriminator od gre\u0161ke unutarnje trke.<\/li>\n<li><strong>Uzorak:<\/strong> BSF \u00b1 FTF, BSF \u00b1 2\u00d7FTF i tako dalje, grade\u0107i &#8220;ogradu&#8221; vrhova razmaknutih frekvencijom kaveza.<\/li>\n<\/ul>\n<p>Jer su udari kratkotrajni i visokofrekvencijski, obi\u010dno su potopljeni u sirovom spektru i jasno se pojavljuju tek nakon demodulacije. <a href=\"https:\/\/vibromera.eu\/hr\/glossary\/envelope-analysis\/\">Analiza omotnice<\/a> ispravlja\u010d i pojasni filtri signal kako bi se izlo\u017eila brzina ponavljanja, a dobiveni <a href=\"https:\/\/vibromera.eu\/hr\/glossary\/envelope-spectrum\/\">spektar ovojnice<\/a> je gdje je obitelj BSF\/FTF najvidljivija. Srodno <a href=\"https:\/\/vibromera.eu\/hr\/glossary\/bearing-fault-frequencies\/\">frekvencije kvarova le\u017eajeva<\/a> za unutarnju trku, vanjsku trku i kavez zavr\u0161avaju dijagnosti\u010dki alat.<\/p>\n<h3>Razlikovanje \u010detiri gre\u0161ke le\u017eaja<\/h3>\n<table border=\"1\" style=\"width:100%; border-collapse:collapse;\">\n<tr>\n<th>Zna\u010dajka<\/th>\n<th>Vanjski prsten (<a href=\"https:\/\/vibromera.eu\/hr\/glossary\/bpfo\/\">BPFO<\/a>)<\/th>\n<th>Unutarnji prsten (<a href=\"https:\/\/vibromera.eu\/hr\/glossary\/bpfi\/\">BPFI<\/a>)<\/th>\n<th>Element valjanja (BSF)<\/th>\n<\/tr>\n<tr>\n<td>Primarna frekvencija<\/td>\n<td>BPFO (3\u20135\u00d7)<\/td>\n<td>BPFI (5\u20137\u00d7)<\/td>\n<td>BSF (2\u20133\u00d7)<\/td>\n<\/tr>\n<tr>\n<td>Razmak bo\u010dnih traka<\/td>\n<td>Ni\u0161ta ili minimalno<\/td>\n<td>\u00b11\u00d7 (brzina osovine)<\/td>\n<td>\u00b1FTF (brzina kaveza)<\/td>\n<\/tr>\n<tr>\n<td>Stabilnost amplituda<\/td>\n<td>Relativno stabilno<\/td>\n<td>Stabilan<\/td>\n<td>Varijabilno (ovisi o polo\u017eaju lopte)<\/td>\n<\/tr>\n<tr>\n<td>Pojava<\/td>\n<td>Naj\u010de\u0161\u0107i (~40%)<\/td>\n<td>Uobi\u010dajeno (~35%)<\/td>\n<td>Najrje\u0111e (~10\u201315%)<\/td>\n<\/tr>\n<\/table>\n<h3>Varijabilnost amplituda<\/h3>\n<p>Karakteristi\u010dna svojstva o\u0161te\u0107enja kuglica je \u0161to izmjerena amplituda varira izme\u0111u mjerenja:<\/p>\n<ul>\n<li>Kada se o\u0161te\u0107eni element kotrlja kroz zonu optere\u0107enja, udari su jaki i amplituda je visoka.<\/li>\n<li>Kada se isti element nalazi na neoptere\u0107enoj strani le\u017eaja, kontakt je slab i amplituda pada.<\/li>\n<li>Ova modulacija upravlja se frekvencijom kaveza (otuda i FTF bo\u010dne trake) i mo\u017ee u\u010diniti jednostavnom <a href=\"https:\/\/vibromera.eu\/hr\/glossary\/trending\/\">pra\u0107enje trendova<\/a> haoi\u010dnom \u2014 ali sam \u010dinjenica da se razina dization gore i dolje sama je dijagnosti\u010dka za o\u0161te\u0107enje elementa valjanja.<\/li>\n<\/ul>\n<h2>4. Napredovanje i posljedice<\/h2>\n<h3>Razvoj defekata<\/h3>\n<ol>\n<li><strong>Inicijacija:<\/strong> mali povr\u0161inski pukotina ili podpovr\u0161inska ne\u010disto\u0107a.<\/li>\n<li><strong>Mikrolju\u0161tenje:<\/strong> mali komad materijala se odvoji.<\/li>\n<li><strong>Rast ljuskastog loma:<\/strong> udari na rubovima o\u0161te\u0107enja \u0161ire \u0161tetu.<\/li>\n<li><strong>Vi\u0161estruka o\u0161te\u0107enja:<\/strong> cirkuliraju\u0107i otpad abradira povr\u0161inu i podstje\u010de daljnja o\u0161te\u0107enja.<\/li>\n<li><strong>Frakturiranje kuglica:<\/strong> u te\u0161kim slu\u010dajevima cijela se kuglica puca i raspadne.<\/li>\n<li><strong>Potpuni kvar:<\/strong> le\u017eaj gubi sposobnost no\u0161enja optere\u0107enja, \u010desto se zaglavljivanjem.<\/li>\n<\/ol>\n<h3>Sekundarna o\u0161te\u0107enja<\/h3>\n<ul>\n<li><strong>O\u0161te\u0107enje prstena:<\/strong> o\u0161te\u0107eni element zareza i unutarnju i vanjsku stazu.<\/li>\n<li><strong>Cirkulacija otpada:<\/strong> o\u0161te\u0107eni materijal poti\u010de trosmjerno abraziju kroz le\u017eaj.<\/li>\n<li><strong>O\u0161te\u0107enje kaveza:<\/strong> hrapava povr\u0161ina elementa tr\u0161i ke\u0161anje.<\/li>\n<li><strong>Brzo pogor\u0161anje:<\/strong> kad je jedan element o\u0161te\u0107en, ostali brzo slijede, pa je prozor izme\u0111u detektabilne gre\u0161ke i otkaza kratak.<\/li>\n<\/ul>\n<h2>5. \u010cesti uzroci<\/h2>\n<h3>Proizvodni i materijalni nedostaci<\/h3>\n<ul>\n<li>Interna uklju\u010denja ili prazni prostor u materijalu elementa.<\/li>\n<li>Neodgovaraju\u0107a toplinska obrada koja ostavlja neadekvatnu ili neravnomjernu tvr\u0111o\u0107u.<\/li>\n<li>Nedostaci u zavr\u0161noj obrada povr\u0161ine.<\/li>\n<li>Geometrijske nesavr\u0161enosti kao \u0161to su kugle koje nisu savr\u0161eno okrugle.<\/li>\n<\/ul>\n<h3>O\u0161te\u0107enja tijekom monta\u017ee<\/h3>\n<ul>\n<li>Udarac tijekom rukovanja \u2014 ispu\u0161tanje ili udibanje le\u017eaja.<\/li>\n<li>Brinelovanje od stati\u010dkog preoptere\u0107enja ili la\u017eno brinelovanje od vibracija tijekom mirovanja.<\/li>\n<li>One\u010di\u0161\u0107enje uvedeno tijekom monta\u017ee, sa \u010desticama ugnjezdenim u povr\u0161inu.<\/li>\n<\/ul>\n<h3>Uvjeti rada<\/h3>\n<ul>\n<li>Neadekvatna mazivu \u0161to uzrokuje povr\u0161insku deformaciju i mikrozavarivanje.<\/li>\n<li>Preoptere\u0107enje koje ubrzava zamor kotrljaju\u0107eg kontakta.<\/li>\n<li>Lutaju\u0107a elektri\u010dna struja koja prolazi kroz le\u017eaj, uzrokuju\u0107i flutiranje i jami\u010davost.<\/li>\n<li>Korozivna okru\u017eenja koja napadaju povr\u0161ine elemenata.<\/li>\n<li>One\u010di\u0161\u0107enje \u010dvrstim \u010desticama koja stvara udubine.<\/li>\n<\/ul>\n<h2>6. Detektiranje, dijagnostika i korekcijska mjera<\/h2>\n<h3>Analiza vibracija<\/h3>\n<ul>\n<li>Izra\u010dunajte BSF i FTF za specifi\u010dnu geometriju le\u017eaja \u2014 a <a href=\"https:\/\/vibromera.eu\/hr\/calculators\/bearing-defect-frequencies\/\">Kalkulator u\u010destalosti kvarova le\u017eajeva<\/a> pretvara brzinu vrtnje osovine i dimenzije le\u017eaja direktno u BPFO, BPFI, BSF i FTF.<\/li>\n<li>Pretra\u017eivanje spektra okoline za BSF vrhunac.<\/li>\n<li>Verificirajte FTF bo\u010dni spektar \u2014 najpouzdanija potvrda gre\u0161ke valjnog elementa.<\/li>\n<li>Provjerite 2\u00d7BSF, koji \u010desto prema\u0161uje temeljnu frekvenciju po amplitudi.<\/li>\n<li>Izvr\u0161ite nekoliko mjerenja; o\u010dekivana varijabilnost amplitude sama je potvrda.<\/li>\n<\/ul>\n<p>U terenu, cijeli ovaj redoslijed \u2014 mjerenje razine \u0161irokopojasnog \u0161uma, hvatanje spektra i pokretanje analize okoline \u2014 upravo je vrsta diagnostike le\u017eaja za koju su prenosive analizatore s dva kanala namijenjene. The <a href=\"https:\/\/vibromera.eu\/hr\/proizvod\/balanset-1\/\">Balanset-1A<\/a> zapisuje FFT spektar i vremenski oblik signala iz samih le\u017eajnih ku\u0107i\u0161ta stroja pri radnoj brzini, omogu\u0107avaju\u0107i analiti\u010daru da na mjestu pregleda BSF obitelj i njezine FTF bo\u010dne linije bez rastavljanja stroja, a zatim klasificira o\u0161te\u0107enje pomo\u0107u alata kao \u0161to je <a href=\"https:\/\/vibromera.eu\/hr\/calculators\/bearing-damage-classifier\/\">Bearing Damage Classifier (ISO 15243)<\/a>. Isti instrument tako\u0111er vam omogu\u0107ava potvrdu da je gre\u0161ka le\u017eaja stvarna i ne \u0441\u0430\u043c\u043e strukturni artefakt prije nego \u0161to se prije\u0111ete na zamjenu.<\/p>\n<h3>Fizi\u010dka inspekcija<\/h3>\n<ul>\n<li>Raspakujte le\u017eaj i detaljno ispitajte svaki kuglicu ili valjak.<\/li>\n<li>Tra\u017eite o\u0161te\u0107enja, pukotine, ugra\u0111eni materijal, koroziju<\/li>\n<li>Provjerite hrapavost povr\u0161ine \u2014 glatki nasuprot zrnastih elemenata.<\/li>\n<li>Provjerite geometrijsku to\u010dnost (necilindri\u010dnost).<\/li>\n<li>Fotografirajte svaki defekt za zapisnik odr\u017eavanja.<\/li>\n<\/ul>\n<h3>Ispravlja\u010dka akcija i analiza uzroka<\/h3>\n<p>Neposredan odgovor je pove\u0107anje frekvencije pra\u0107enja u skladu s <a href=\"https:\/\/vibromera.eu\/hr\/glossary\/defect-severity\/\">te\u017eine defekta<\/a>, planiranje zamjene le\u017eaja i provjera prstena na sekundarno o\u0161te\u0107enje. Trajno rje\u0161enje le\u017ei u analizi iz\u00advora gre\u0161ke: pregledajte izbor i ocjenu le\u017eaja, potvr\u0111ujte megfectest podmazivanja, prona\u0111ite izvore kontaminacije, provjerite praksu instalacije i razmotr\u0438\u0442\u0435 pobolj\u0161anu specifikaciju le\u017eaja gdje je otkazao prijevremeno. Vra\u0107anjem tih saznanja u strukturirani <a href=\"https:\/\/vibromera.eu\/hr\/glossary\/condition-monitoring\/\">pra\u0107enje stanja<\/a> program je ono \u0161to jednokratnu gre\u0161ku pretvara u spre\u010denu.<\/p>\n<p>Gre\u0161ke valjnih elemenata, iako rje\u0111e nego gre\u0161ke prstena, zahtijevaju jasan razumijevanje karakteristi\u010dne BSF signatury s FTF bo\u010dnim linijama za to\u010dnu dijagnozu. Rana detekcija kroz analizu okoline omogu\u0107ava plansko odr\u017eavanje dugo prije nego \u0161to gre\u0161ka preraste u te\u0161ko o\u0161te\u0107enje le\u017eaja i mogu\u0107 katastrofalan otkazivanje.<\/p>\n<hr>\n<p><a href=\"https:\/\/vibromera.eu\/hr\/glossary\/\">\u2190 Natrag na glavni indeks<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Saznajte vi\u0161e o nedostacima kotrljaju\u0107ih elemenata u le\u017eajevima, o\u0161te\u0107enjima kuglica ili valjaka, uklju\u010duju\u0107i odlomke, pukotine i nedostatke materijala, koji se mogu otkriti putem BSF frekvencije i FTF bo\u010dnih pojaseva.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[109,110],"tags":[],"class_list":["post-20649","glossary","type-glossary","status-publish","hentry","category-glossary","category-vibration-diagnostics"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/hr\/wp-json\/wp\/v2\/glossary\/20649","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/hr\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/vibromera.eu\/hr\/wp-json\/wp\/v2\/types\/glossary"}],"version-history":[{"count":1,"href":"https:\/\/vibromera.eu\/hr\/wp-json\/wp\/v2\/glossary\/20649\/revisions"}],"predecessor-version":[{"id":101399,"href":"https:\/\/vibromera.eu\/hr\/wp-json\/wp\/v2\/glossary\/20649\/revisions\/101399"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/hr\/wp-json\/wp\/v2\/media?parent=20649"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/hr\/wp-json\/wp\/v2\/categories?post=20649"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/hr\/wp-json\/wp\/v2\/tags?post=20649"}],"curies":[{"name":"radni list","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}