{"id":201,"date":"2025-10-31T00:25:51","date_gmt":"2025-10-31T00:25:51","guid":{"rendered":"https:\/\/vibromera.eu\/glossary\/preload\/"},"modified":"2026-05-23T22:44:32","modified_gmt":"2026-05-23T22:44:32","slug":"preload","status":"publish","type":"glossary","link":"https:\/\/vibromera.eu\/sl\/glossary\/preload\/","title":{"rendered":"Kaj je prednapetost le\u017eaja? Togost in natan\u010dnost"},"content":{"rendered":"<h1>Razumevanje prednapetosti le\u017eajev<\/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\/sl\/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\/sl\/product\/balanset-1\/\" title=\"Prenosni balanser in analizator vibracij 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=\"Prenosni uravnote\u017enik in analizator vibracij Balanset-1A v popolnem kompletu\" 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\/sl\/product-category\/devices\/\" rel=\"tag\">Naprave<\/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\/sl\/product\/balanset-1\/\" title=\"Prenosni balanser in analizator vibracij Balanset-1A\">Prenosni balanser in analizator vibracij 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> + DDV (\u010de je primerno)<\/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=\"\/sl\/wp-json\/wp\/v2\/glossary\/201?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 v ko\u0161arico\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Dodaj v ko\u0161arico\" 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=\"\/sl\/wp-json\/wp\/v2\/glossary\/201?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 v ko\u0161arico: \u201cPortable balancer &amp; Vibration analyzer Balanset-1A\u201d\" rel=\"nofollow\" data-success_message=\"\u201cPortable balancer &amp; Vibration analyzer Balanset-1A\u201d je bil dodan v va\u0161o ko\u0161arico\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Dodaj v ko\u0161arico<\/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\/sl\/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\/sl\/product\/vibration-sensor\/\" title=\"Senzor vibracij\">\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=\"Senzor vibracij Balanset-1A od blizu\" 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\/sl\/product-category\/parts\/\" rel=\"tag\">Deli<\/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\/sl\/product\/vibration-sensor\/\" title=\"Senzor vibracij\">Senzor vibracij<\/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> + DDV (\u010de je primerno)<\/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=\"\/sl\/wp-json\/wp\/v2\/glossary\/201?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 v ko\u0161arico\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Dodaj v ko\u0161arico\" 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=\"\/sl\/wp-json\/wp\/v2\/glossary\/201?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 v ko\u0161arico: \u201cVibration sensor\u201d\" rel=\"nofollow\" data-success_message=\"\u201cVibration sensor\u201d je bil dodan v va\u0161o ko\u0161arico\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Dodaj v ko\u0161arico<\/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\/sl\/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\/sl\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Opti\u010dni senzor (laserski tahometer)\">\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\u010dni senzor (laserski tahometer)\" 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\/sl\/product-category\/parts\/\" rel=\"tag\">Deli<\/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\/sl\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Opti\u010dni senzor (laserski tahometer)\">Opti\u010dni senzor (laserski tahometer)<\/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> + DDV (\u010de je primerno)<\/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=\"\/sl\/wp-json\/wp\/v2\/glossary\/201?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 v ko\u0161arico\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Dodaj v ko\u0161arico\" 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=\"\/sl\/wp-json\/wp\/v2\/glossary\/201?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 v ko\u0161arico: \u201cOptical Sensor (Laser Tachometer)\u201d\" rel=\"nofollow\" data-success_message=\"\u201cOptical Sensor (Laser Tachometer)\u201d je bil dodan v va\u0161o ko\u0161arico\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Dodaj v ko\u0161arico<\/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\/sl\/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\/sl\/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=\"Komplet za uravnote\u017eenje rotorjev Vibromera: torba za prena\u0161anje, ve\u010dkanalni pretvornik signala, ro\u010dni analizator, magnetna podlaga, senzorji vibracij in spiralni kabli.\" 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\/sl\/product-category\/devices\/\" rel=\"tag\">Naprave<\/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\/sl\/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> + DDV (\u010de je primerno)<\/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=\"\/sl\/wp-json\/wp\/v2\/glossary\/201?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 v ko\u0161arico\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Dodaj v ko\u0161arico\" 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=\"\/sl\/wp-json\/wp\/v2\/glossary\/201?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 v ko\u0161arico: \u201cBalanset-4\u201d\" rel=\"nofollow\" data-success_message=\"\u201cBalanset-4\u201d je bil dodan v va\u0161o ko\u0161arico\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Dodaj v ko\u0161arico<\/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\/sl\/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\/sl\/product\/magnet-stand\/\" title=\"Magnetno stojalo 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=\"Magnetna osnova.\" 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\/sl\/product-category\/parts\/\" rel=\"tag\">Deli<\/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\/sl\/product\/magnet-stand\/\" title=\"Magnetno stojalo Insize-60-kgf\">Magnetno stojalo Insize-60-kgf<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>46.00<\/span> + DDV (\u010de je primerno)<\/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=\"\/sl\/wp-json\/wp\/v2\/glossary\/201?add-to-cart=1852\" data-quantity=\"1\" data-product_id=\"1852\" 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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\/sl\/product-category\/parts\/\" rel=\"tag\">Deli<\/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\/sl\/product\/reflective-tape\/\" title=\"Odsevni trak\">Odsevni trak<\/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> + DDV (\u010de je primerno)<\/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=\"\/sl\/wp-json\/wp\/v2\/glossary\/201?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 v ko\u0161arico\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Dodaj v ko\u0161arico\" 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=\"\/sl\/wp-json\/wp\/v2\/glossary\/201?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 v ko\u0161arico: \u201cReflective tape\u201d\" rel=\"nofollow\" data-success_message=\"\u201cReflective tape\u201d je bil dodan v va\u0161o ko\u0161arico\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Dodaj v ko\u0161arico<\/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\/sl\/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\/sl\/product\/dynamic-balancer-balanset-1a\/\" title=\"Dinami\u010dni uravnote\u017eevalnik &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=\"Vsebina kompleta Balanset-1A z vmesni\u0161ko enoto, senzorji, tahometrom in dodatno opremo\" 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\/sl\/product-category\/devices\/\" rel=\"tag\">Naprave<\/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\/sl\/product\/dynamic-balancer-balanset-1a\/\" title=\"Dinami\u010dni uravnote\u017eevalnik &quot;Balanset-1A&quot; OEM\">Dinami\u010dni uravnote\u017eevalnik \"Balanset-1A\" OEM<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>1,735.00<\/span> + DDV (\u010de je primerno)<\/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=\"\/sl\/wp-json\/wp\/v2\/glossary\/201?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 v ko\u0161arico\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Dodaj v ko\u0161arico\" 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=\"\/sl\/wp-json\/wp\/v2\/glossary\/201?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 v ko\u0161arico: \u201cDynamic balancer \u201cBalanset-1A\u201d OEM\u201d\" rel=\"nofollow\" data-success_message=\"\u201cDynamic balancer \u201cBalanset-1A\u201d OEM\u201d je bil dodan v va\u0161o ko\u0161arico\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Dodaj v ko\u0161arico<\/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>Prednapetost le\u017eaja<\/strong> \u2014 imenovano tudi prednapetost ali za\u010detna obremenitev \u2014 je nadzorovana tla\u010dna obremenitev, ki se namerno izvaja na le\u017eaj, da se odpravijo notranje <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/bearing-clearance\/\">zra\u010dnost<\/a> in ustvarja rahel prednapeti stik med kotalnimi elementi in tekalnimi potmi. Ker prednapetost ohranja vsak kotalni element v neprekinjenem stiku s tekalnimi potmi v vseh obratovalnih razmerah, odpravi majhno notranjo zra\u010dnost, ki bi sicer obstajala, in ustvari trdnej\u0161i, natan\u010dnej\u0161i le\u017eajni sistem z bolj\u0161o porazdelitvijo obremenitve ter ve\u010djo odpornostjo proti <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/vibration\/\">vibracije<\/a>. Nepogre\u0161ljiv je povsod tam, kjer aplikacija zahteva visoko togost, natan\u010dno pozicioniranje gredi ali nemoteno delovanje pri spremenljivih ali nihajo\u010dih obremenitvah, in se standardno uporablja v vretenih obdelovalnih strojev, natan\u010dnih instrumentih ter visokohitrostnih strojih, kjer je prepre\u010devanje <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/rotor-instability\/\">nestabilnost<\/a> je klju\u010dnega pomena.<\/p>\n<h2>1. Opredelitev: Pretvorba zra\u010dnosti v togost<\/h2>\n<p>Ve\u010dina kotalnih le\u017eajev je izdelana z majhno notranjo zra\u010dnostjo, da jih je mogo\u010de vgraditi in mazati. Ta zra\u010dnost je koristna pri monta\u017ei, vendar \u0161kodljiva za natan\u010dnost: omogo\u010da, da se gred rahlo upogne, preden kotalni elementi prevzamejo obremenitev, in omogo\u010da, da elementi pri majhni obremenitvi drsijo namesto da se kotalijo. Prednapetost to namerno obrne - potisne tekalne poti skupaj (ali jih radialno stisne), dokler zra\u010dnost ne izgine in na vsakem elementu nastane dolo\u010dena kontaktna sila \u0161e preden pride zunanja obremenitev. V bistvu prednapetost zamenja malo dodatnega trenja in toplote za velik dobi\u010dek v <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/stiffness\/\">togost<\/a> in natan\u010dnost pozicioniranja.<\/p>\n<h2>2. Namen in prednosti<\/h2>\n<h3>1. Ve\u010dja togost<\/h3>\n<p>To je glavna prednost prednapetosti:<\/p>\n<ul>\n<li>Odpravlja razmik, ki omogo\u010da upogib pod obremenitvijo<\/li>\n<li>Vsi valj\u010dni elementi ostanejo v stiku, obremenitev pa se porazdeli po celotnem sklopu.<\/li>\n<li>Togo\u010dnost le\u017eaja se lahko pove\u010da za pribli\u017eno 2- do 5-krat v primerjavi z le\u017eajem brez prednapetosti.<\/li>\n<li>Zmanj\u0161a upogib gredi in izbolj\u0161a splo\u0161no togost sistema.<\/li>\n<\/ul>\n<h3>2. Ve\u010dja to\u010dnost in natan\u010dnost<\/h3>\n<ul>\n<li>Odpravlja <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/run-out\/\">iztek gredi<\/a> ki izhaja iz igre v le\u017eaju.<\/li>\n<li>Zagotavlja natan\u010dno in ponovljivo pozicioniranje gredi.<\/li>\n<li>Klju\u010dnega pomena za precizne stroje, kot so obdelovalni stroji in merilni instrumenti.<\/li>\n<li>Zmanj\u0161a vibracije, ki jih povzro\u010dajo udarci zaradi prevelikega razmika.<\/li>\n<\/ul>\n<h3>3. Prepre\u010devanje zdrsa<\/h3>\n<ul>\n<li>Zagotavlja, da se kotalni elementi resni\u010dno kotalijo in ne drsijo<\/li>\n<li>\u0160e posebej pomembno pri lahkih obremenitvah ali visokih hitrostih<\/li>\n<li>Zdrs povzro\u010di hitro <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/bearing-wear\/\">obraba le\u017eaja<\/a> in po\u0161kodbe povr\u0161ine.<\/li>\n<li>Prednapetost zagotavlja zadostno pritiskno silo za \u010disto kotaljenje.<\/li>\n<\/ul>\n<h3>4. Zmanj\u0161anje hrupa<\/h3>\n<ul>\n<li>Odpravi ropotanje, ki ga povzro\u010da notranja zra\u010dnost.<\/li>\n<li>Zagotavlja ti\u0161je in bolj gladko delovanje.<\/li>\n<li>Pomembno v bli\u017eini osebja ali ob\u010dutljive opreme.<\/li>\n<\/ul>\n<h3>5. Izbolj\u0161anje stabilnosti<\/h3>\n<p>Na spletnem mestu <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/rotor-dynamics\/\">dinamika rotorja<\/a>, prednapetost prispeva k stabilnosti:<\/p>\n<ul>\n<li>Ve\u010dja togost le\u017eaja pove\u010da <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/critical-speed\/\">kriti\u010dne hitrosti<\/a>.<\/li>\n<li>Izbolj\u0161a <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/damping\/\">du\u0161enje<\/a> lastnosti.<\/li>\n<li>Pomaga prepre\u010devati nestabilnosti, ki jih povzro\u010dajo le\u017eaji.<\/li>\n<li>Zmanj\u0161a ob\u010dutljivost na zunanje vibracije.<\/li>\n<\/ul>\n<h2>3. Vrste prednapetosti<\/h2>\n<h3>1. Fiksna (toga) prednapetost<\/h3>\n<p>Nenehna prednapetost, neodvisna od temperature ali hitrosti:<\/p>\n<ul>\n<li><strong>Metoda:<\/strong> Distan\u010dniki, podlo\u017eke ali varovalne matice, nastavljene na dolo\u010den polo\u017eaj<\/li>\n<li><strong>Zna\u010dilnosti:<\/strong> visoka togost in natan\u010dno krmiljenje.<\/li>\n<li><strong>Omejitve:<\/strong> se lahko s pove\u010danjem temperature pove\u010da, kar lahko povzro\u010di preobremenitev.<\/li>\n<li><strong>Uporaba:<\/strong> vretena za obdelovalne stroje in natan\u010dna oprema.<\/li>\n<\/ul>\n<h3>2. Vzmetna (elasti\u010dna) prednapetost<\/h3>\n<p>Prednapetost, ki jo vzdr\u017eujejo vzmeti in omogo\u010da toplotno kompenzacijo:<\/p>\n<ul>\n<li><strong>Metoda:<\/strong> valovne vzmeti, Belleville-podlo\u017eke ali spiralne vzmeti.<\/li>\n<li><strong>Zna\u010dilnosti:<\/strong> omogo\u010da toplotno raztezanje brez preobremenitve.<\/li>\n<li><strong>Prednosti:<\/strong> veliko bolj odporen na temperaturne spremembe.<\/li>\n<li><strong>Uporaba:<\/strong> oprema z temperaturnimi nihanji in manj strogimi zahtevami glede natan\u010dnosti.<\/li>\n<\/ul>\n<h2>4. Metode prednapetosti<\/h2>\n<h3>Aksialna prednapetost (najpogostej\u0161a)<\/h3>\n<h4>Namestitev z licem proti licu ali hrbtom proti hrbtu<\/h4>\n<ul>\n<li>Dva le\u017eaja z kotnim stikom, name\u0161\u010dena drug nasproti drugega.<\/li>\n<li>Aksialna sila stiska le\u017eaja skupaj.<\/li>\n<li>Odpravi aksialno zra\u010dnost v obe smeri.<\/li>\n<li>Standardna izvedba za obdelovalne stroje in visoko natan\u010dne aplikacije.<\/li>\n<\/ul>\n<h4>Nastavljiva prednapetost<\/h4>\n<ul>\n<li>Zategovalna matica ali navojni zadr\u017eevalnik, s katerim se nastavi prednapetost.<\/li>\n<li>Preverjeno z navorom, aksialno silo ali porastom temperature le\u017eaja.<\/li>\n<li>To je mogo\u010de nastaviti med monta\u017eo ali ponovno preveriti med vzdr\u017eevanjem.<\/li>\n<\/ul>\n<h3>Radialna prednapetost<\/h3>\n<ul>\n<li>Tesno prileganje med tekalnimi obro\u010di ter gredjo ali ohi\u0161jem povzro\u010di radialno stiskanje.<\/li>\n<li>Kotalni elementi so med tekalnimi obro\u010di stisnjeni v radialni smeri.<\/li>\n<li>Manj pogosto kot aksialna prednapetost.<\/li>\n<li>Uporablja se v nekaterih tesnjenih le\u017eajih in pri posebnih uporabah.<\/li>\n<\/ul>\n<h2>5. Izbiranje vrednosti prednapetosti<\/h2>\n<h3>Rahla prednapetost<\/h3>\n<ul>\n<li><strong>Sila:<\/strong> 1\u20135 % dinami\u010dne nosilnosti le\u017eaja.<\/li>\n<li><strong>Prednosti:<\/strong> ve\u010dja togost ob minimalnem dodatnem trenju.<\/li>\n<li><strong>Uporaba:<\/strong> splo\u0161na natan\u010dna strojna oprema.<\/li>\n<\/ul>\n<h3>Srednja prednapetost<\/h3>\n<ul>\n<li><strong>Sila:<\/strong> 5\u201310 % dinami\u010dne nosilnosti.<\/li>\n<li><strong>Prednosti:<\/strong> visoka togost in dobra natan\u010dnost.<\/li>\n<li><strong>Uporaba:<\/strong> vretena za obdelovalne stroje in natan\u010dni pogoni.<\/li>\n<\/ul>\n<h3>Velika prednapetost<\/h3>\n<ul>\n<li><strong>Sila:<\/strong> 10\u201320 % dinami\u010dne nosilnosti.<\/li>\n<li><strong>Prednosti:<\/strong> najve\u010dja togost in stabilnost.<\/li>\n<li><strong>Omejitve:<\/strong> visoko trenje, nastajanje toplote in kraj\u0161a \u017eivljenjska doba.<\/li>\n<li><strong>Uporaba:<\/strong> ultraprecisno delo ter zahteve po nizkih hitrostih in visoki togosti.<\/li>\n<\/ul>\n<p>Ker je prava vrednost odvisna od nazivne nosilnosti le\u017eaja, je pri dolo\u010danju prednapetosti koristno poznati to vrednost; orodja, kot je <a href=\"https:\/\/vibromera.eu\/sl\/calculators\/bearing-load\/\">Kalkulator \u017eivljenjske dobe le\u017eaja L10 (ISO 281)<\/a> postavijo dinami\u010dno nosilnost in pri\u010dakovano \u017eivljenjsko dobo v kontekst, tako da je mogo\u010de izbrani odstotek prednapetosti pretehtati glede na njegov vpliv na \u017eivljenjsko dobo.<\/p>\n<h2>6. Slabosti in kompromisi<\/h2>\n<h3>Ve\u010dje trenje in toplota<\/h3>\n<ul>\n<li>Prednapetost pove\u010da kontaktne obremenitve in s tem tudi trenje.<\/li>\n<li>Delovna temperatura se obi\u010dajno dvigne za 5\u201320 \u00b0C v primerjavi z le\u017eajem brez prednapetosti.<\/li>\n<li>Vi\u0161je temperature pospe\u0161ujejo razgradnjo maziva<\/li>\n<li>Izbolj\u0161ano hlajenje ali <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/bearing-lubrication\/\">mazanje<\/a> je morda potrebna.<\/li>\n<\/ul>\n<h3>Skraj\u0161ana \u017eivljenjska doba le\u017eaja<\/h3>\n<ul>\n<li>Prednapetost pove\u010da obratovalne obremenitve.<\/li>\n<li>Pri izra\u010dunih \u017eivljenjske dobe le\u017eajev je treba upo\u0161tevati vpliv prednapetosti.<\/li>\n<li>Prevelika prednapetost lahko bistveno skraj\u0161a \u017eivljenjsko dobo.<\/li>\n<li>Osnovno ravnovesje je med togostjo in natan\u010dnostjo na eni strani ter trajnostjo na drugi.<\/li>\n<\/ul>\n<h3>Toplotna ob\u010dutljivost<\/h3>\n<ul>\n<li>Fiksna prednapetost se zaradi razli\u010dnega raztezanja pove\u010duje s porastom temperature.<\/li>\n<li>Nenadzorovano toplotno raztezanje lahko povzro\u010di preobremenitev le\u017eaja.<\/li>\n<li>Vzmetna prednapetost absorbira te temperaturne spremembe.<\/li>\n<li>Pri zasnovi je treba upo\u0161tevati celoten obseg delovnih temperatur.<\/li>\n<\/ul>\n<h2>7. Uporaba<\/h2>\n<h3>Kadar je prednapetost nujna<\/h3>\n<ul>\n<li><strong>Vretena za obdelovalne stroje:<\/strong> vretena za bru\u0161enje, rezkanje in stru\u017eenje, ki zahtevajo natan\u010dnost in togost.<\/li>\n<li><strong>Visokohitrostna oprema:<\/strong> za prepre\u010devanje zdrsa in nestabilnosti.<\/li>\n<li><strong>Natan\u010dni instrumenti:<\/strong> merilna oprema in opti\u010dni sistemi.<\/li>\n<li><strong>Nihajo\u010de obremenitve:<\/strong> uporabe z menjavo smeri obremenitve ali spremenljivimi obremenitvami.<\/li>\n<li><strong>Momentne obremenitve:<\/strong> le\u017eaji, na katere delujejo nagibni momenti.<\/li>\n<\/ul>\n<h3>Kje prednapetost ni priporo\u010dljiva<\/h3>\n<ul>\n<li>Uporaba pri visokih temperaturah, kjer obstaja nevarnost toplotne preobremenitve.<\/li>\n<li>Zelo visoke hitrosti, pri katerih prevladujeta trenje in toplota.<\/li>\n<li>Velike udarne obremenitve.<\/li>\n<li>Primeri, v katerih je dalj\u0161a \u017eivljenjska doba le\u017eaja pomembnej\u0161a od togosti.<\/li>\n<li>Splo\u0161na industrijska uporaba, kjer natan\u010dnost ni klju\u010dnega pomena.<\/li>\n<\/ul>\n<p>Prednapetost ima tudi diagnosti\u010dno vlogo. Vreteno, ki je zaradi obrabe izgubilo prednapetost ali je bilo izpostavljeno toplotni preobremenitvi, spremeni svoj vibracijski odtis \u2013 pogosto se spremenijo kriti\u010dne hitrosti ali pove\u010da raven \u0161irokopasovnih vibracij \u2013, zato so u\u010dinki prednapetosti za analitika vibracij vidni \u017ee dolgo pred okvaro. Prenosni dvo-kanalni analizator, kot je <a href=\"https:\/\/vibromera.eu\/sl\/izdelek\/balanset-1\/\">Balanset-1A<\/a> lahko zajame vibracijski podpis vretena <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/spectrum\/\">vibracijski spekter<\/a> in splo\u0161no raven pri delovni hitrosti ter tako zagotovi <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/baseline\/\">izhodi\u0161\u010dna vrednost<\/a> na podlagi katerega je mogo\u010de spremljati morebitne kasnej\u0161e spremembe prednapetosti le\u017eaja ali njegovega stanja \u2013 in ko se izka\u017ee, da je osnovni vzrok <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/unbalance\/\">neuravnote\u017eenost<\/a> neuravnote\u017eenost rotorja, in ne le\u017eaji, mogo\u010de odpraviti z uravnote\u017eenjem na istem stroju.<\/p>\n<p>Prednapetost le\u017eaja je u\u010dinkovito sredstvo za izbolj\u0161anje zmogljivosti le\u017eajnega sistema, saj zagotavlja ve\u010djo togost, izbolj\u0161ano natan\u010dnost ter za\u0161\u010dito pred zdrsom in nestabilnostjo. Pri dolo\u010danju prednapetosti je treba paziti, da se prednosti tehtajo glede na slabosti, kot so pove\u010dano trenje, segrevanje in kraj\u0161a \u017eivljenjska doba, da se za vsako posamezno uporabo dose\u017ee optimalno ravnovesje.<\/p>\n<hr>\n<p><a href=\"https:\/\/vibromera.eu\/sl\/glossary\/\">\u2190 Nazaj na glavno kazalo<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Spoznajte prednapetost le\u017eajev, nadzorovano aksialno ali radialno silo, ki se uporablja za odpravo zra\u010dnosti, pove\u010danje togosti, natan\u010dnosti in prepre\u010devanje zdrsa v kotalnih le\u017eajih.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[109,110],"tags":[],"class_list":["post-201","glossary","type-glossary","status-publish","hentry","category-glossary","category-vibration-diagnostics"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/sl\/wp-json\/wp\/v2\/glossary\/201","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/sl\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/vibromera.eu\/sl\/wp-json\/wp\/v2\/types\/glossary"}],"version-history":[{"count":1,"href":"https:\/\/vibromera.eu\/sl\/wp-json\/wp\/v2\/glossary\/201\/revisions"}],"predecessor-version":[{"id":101348,"href":"https:\/\/vibromera.eu\/sl\/wp-json\/wp\/v2\/glossary\/201\/revisions\/101348"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/sl\/wp-json\/wp\/v2\/media?parent=201"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/sl\/wp-json\/wp\/v2\/categories?post=201"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/sl\/wp-json\/wp\/v2\/tags?post=201"}],"curies":[{"name":"delovni list","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}