{"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\/bn\/glossary\/rolling-element-defects\/","title":{"rendered":"What are Rolling Element Defects? Ball and Roller Damage"},"content":{"rendered":"<h1>Understanding Rolling Element Defects<\/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\/bn\/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\/bn\/product\/balanset-1\/\" title=\"\u09aa\u09cb\u09b0\u09cd\u099f\u09c7\u09ac\u09b2 \u09ac\u09cd\u09af\u09be\u09b2\u09c7\u09a8\u09cd\u09b8\u09be\u09b0 \u098f\u09ac\u0982 \u0995\u09ae\u09cd\u09aa\u09a8 \u09ac\u09bf\u09b6\u09cd\u09b2\u09c7\u09b7\u0995 \u09ac\u09cd\u09af\u09be\u09b2\u09be\u09a8\u09b8\u09c7\u099f-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 full kit portable balancer and vibration analyzer\" 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\/bn\/product-category\/devices\/\" rel=\"tag\">\u09a1\u09bf\u09ad\u09be\u0987\u09b8<\/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\/bn\/product\/balanset-1\/\" title=\"\u09aa\u09cb\u09b0\u09cd\u099f\u09c7\u09ac\u09b2 \u09ac\u09cd\u09af\u09be\u09b2\u09c7\u09a8\u09cd\u09b8\u09be\u09b0 \u098f\u09ac\u0982 \u0995\u09ae\u09cd\u09aa\u09a8 \u09ac\u09bf\u09b6\u09cd\u09b2\u09c7\u09b7\u0995 \u09ac\u09cd\u09af\u09be\u09b2\u09be\u09a8\u09b8\u09c7\u099f-1A\">\u09aa\u09cb\u09b0\u09cd\u099f\u09c7\u09ac\u09b2 \u09ac\u09cd\u09af\u09be\u09b2\u09c7\u09a8\u09cd\u09b8\u09be\u09b0 \u098f\u09ac\u0982 \u0995\u09ae\u09cd\u09aa\u09a8 \u09ac\u09bf\u09b6\u09cd\u09b2\u09c7\u09b7\u0995 \u09ac\u09cd\u09af\u09be\u09b2\u09be\u09a8\u09b8\u09c7\u099f-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> + \u09ad\u09cd\u09af\u09be\u099f (\u09af\u09a6\u09bf \u09aa\u09cd\u09b0\u09af\u09cb\u099c\u09cd\u09af \u09b9\u09af\u09bc)<\/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=\"\/bn\/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=\"\u0995\u09be\u09b0\u09cd\u099f\u09c7 \u09af\u09cb\u0997 \u0995\u09b0\u09c1\u09a8  \" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"\u0995\u09be\u09b0\u09cd\u099f\u09c7 \u09af\u09cb\u0997 \u0995\u09b0\u09c1\u09a8  \" 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=\"\/bn\/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=\"\u0995\u09be\u09b0\u09cd\u099f\u09c7 \u09af\u09cb\u0997 \u0995\u09b0\u09c1\u09a8: \u201cPortable balancer &amp; Vibration analyzer Balanset-1A\u201d\" rel=\"nofollow\" data-success_message=\"\u0986\u09aa\u09a8\u09be\u09b0 \u0995\u09be\u09b0\u09cd\u099f\u09c7 \u201cPortable balancer &amp; Vibration analyzer Balanset-1A\u201d \u09af\u09cb\u0997 \u0995\u09b0\u09be \u09b9\u09af\u09bc\u09c7\u099b\u09c7\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">\u0995\u09be\u09b0\u09cd\u099f\u09c7 \u09af\u09cb\u0997 \u0995\u09b0\u09c1\u09a8  <\/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\/bn\/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\/bn\/product\/vibration-sensor\/\" title=\"\u0995\u09ae\u09cd\u09aa\u09a8 \u09b8\u09c7\u09a8\u09cd\u09b8\u09b0\">\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 vibration sensor close-up\" 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\/bn\/product-category\/parts\/\" rel=\"tag\">\u0985\u0982\u09b6<\/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\/bn\/product\/vibration-sensor\/\" title=\"\u0995\u09ae\u09cd\u09aa\u09a8 \u09b8\u09c7\u09a8\u09cd\u09b8\u09b0\">\u0995\u09ae\u09cd\u09aa\u09a8 \u09b8\u09c7\u09a8\u09cd\u09b8\u09b0<\/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> + \u09ad\u09cd\u09af\u09be\u099f (\u09af\u09a6\u09bf \u09aa\u09cd\u09b0\u09af\u09cb\u099c\u09cd\u09af \u09b9\u09af\u09bc)<\/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=\"\/bn\/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=\"\u0995\u09be\u09b0\u09cd\u099f\u09c7 \u09af\u09cb\u0997 \u0995\u09b0\u09c1\u09a8  \" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"\u0995\u09be\u09b0\u09cd\u099f\u09c7 \u09af\u09cb\u0997 \u0995\u09b0\u09c1\u09a8  \" 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=\"\/bn\/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=\"\u0995\u09be\u09b0\u09cd\u099f\u09c7 \u09af\u09cb\u0997 \u0995\u09b0\u09c1\u09a8: \u201cVibration sensor\u201d\" rel=\"nofollow\" data-success_message=\"\u0986\u09aa\u09a8\u09be\u09b0 \u0995\u09be\u09b0\u09cd\u099f\u09c7 \u201cVibration sensor\u201d \u09af\u09cb\u0997 \u0995\u09b0\u09be \u09b9\u09af\u09bc\u09c7\u099b\u09c7\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">\u0995\u09be\u09b0\u09cd\u099f\u09c7 \u09af\u09cb\u0997 \u0995\u09b0\u09c1\u09a8  <\/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\/bn\/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\/bn\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"\u0985\u09aa\u099f\u09bf\u0995\u09cd\u09af\u09be\u09b2 \u09b8\u09c7\u09a8\u09cd\u09b8\u09b0 (\u09b2\u09c7\u099c\u09be\u09b0 \u099f\u09cd\u09af\u09be\u0995\u09cb\u09ae\u09bf\u099f\u09be\u09b0)\">\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=\"\u0985\u09aa\u099f\u09bf\u0995\u09cd\u09af\u09be\u09b2 \u09b8\u09c7\u09a8\u09cd\u09b8\u09b0 (\u09b2\u09c7\u099c\u09be\u09b0 \u099f\u09cd\u09af\u09be\u0995\u09cb\u09ae\u09bf\u099f\u09be\u09b0)\" 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\/bn\/product-category\/parts\/\" rel=\"tag\">\u0985\u0982\u09b6<\/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\/bn\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"\u0985\u09aa\u099f\u09bf\u0995\u09cd\u09af\u09be\u09b2 \u09b8\u09c7\u09a8\u09cd\u09b8\u09b0 (\u09b2\u09c7\u099c\u09be\u09b0 \u099f\u09cd\u09af\u09be\u0995\u09cb\u09ae\u09bf\u099f\u09be\u09b0)\">\u0985\u09aa\u099f\u09bf\u0995\u09cd\u09af\u09be\u09b2 \u09b8\u09c7\u09a8\u09cd\u09b8\u09b0 (\u09b2\u09c7\u099c\u09be\u09b0 \u099f\u09cd\u09af\u09be\u0995\u09cb\u09ae\u09bf\u099f\u09be\u09b0)<\/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> + \u09ad\u09cd\u09af\u09be\u099f (\u09af\u09a6\u09bf \u09aa\u09cd\u09b0\u09af\u09cb\u099c\u09cd\u09af \u09b9\u09af\u09bc)<\/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=\"\/bn\/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=\"\u0995\u09be\u09b0\u09cd\u099f\u09c7 \u09af\u09cb\u0997 \u0995\u09b0\u09c1\u09a8  \" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"\u0995\u09be\u09b0\u09cd\u099f\u09c7 \u09af\u09cb\u0997 \u0995\u09b0\u09c1\u09a8  \" 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=\"\/bn\/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=\"\u0995\u09be\u09b0\u09cd\u099f\u09c7 \u09af\u09cb\u0997 \u0995\u09b0\u09c1\u09a8: \u201cOptical Sensor (Laser Tachometer)\u201d\" rel=\"nofollow\" data-success_message=\"\u0986\u09aa\u09a8\u09be\u09b0 \u0995\u09be\u09b0\u09cd\u099f\u09c7 \u201cOptical Sensor (Laser Tachometer)\u201d \u09af\u09cb\u0997 \u0995\u09b0\u09be \u09b9\u09af\u09bc\u09c7\u099b\u09c7\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">\u0995\u09be\u09b0\u09cd\u099f\u09c7 \u09af\u09cb\u0997 \u0995\u09b0\u09c1\u09a8  <\/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\/bn\/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\/bn\/product\/balanset-4\/\" title=\"\u09ac\u09cd\u09af\u09be\u09b2\u09be\u09a8\u09b8\u09c7\u099f-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 \u09b0\u09cb\u099f\u09b0 \u09ad\u09be\u09b0\u09b8\u09be\u09ae\u09cd\u09af \u0995\u09bf\u099f: \u09ac\u09b9\u09a8 \u0995\u09c7\u09b8, \u09ae\u09be\u09b2\u09cd\u099f\u09bf-\u099a\u09cd\u09af\u09be\u09a8\u09c7\u09b2 \u09b8\u09bf\u0997\u09a8\u09cd\u09af\u09be\u09b2 \u0995\u09a8\u09cd\u09a1\u09bf\u09b6\u09a8\u09be\u09b0, \u09b9\u09cd\u09af\u09be\u09a8\u09cd\u09a1\u09b9\u09c7\u09b2\u09cd\u09a1 \u09ac\u09bf\u09b6\u09cd\u09b2\u09c7\u09b7\u0995, \u099a\u09cc\u09ae\u09cd\u09ac\u0995 \u09ad\u09bf\u09a4\u09cd\u09a4\u09bf, \u0995\u09ae\u09cd\u09aa\u09a8 \u09b8\u09c7\u09a8\u09cd\u09b8\u09b0, \u098f\u09ac\u0982 \u0995\u09c1\u09a3\u09cd\u09a1\u09b2\u09c0 \u09a4\u09be\u09b0\u0964\" 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\/bn\/product-category\/devices\/\" rel=\"tag\">\u09a1\u09bf\u09ad\u09be\u0987\u09b8<\/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\/bn\/product\/balanset-4\/\" title=\"\u09ac\u09cd\u09af\u09be\u09b2\u09be\u09a8\u09b8\u09c7\u099f-4\">\u09ac\u09cd\u09af\u09be\u09b2\u09be\u09a8\u09b8\u09c7\u099f-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> + \u09ad\u09cd\u09af\u09be\u099f (\u09af\u09a6\u09bf \u09aa\u09cd\u09b0\u09af\u09cb\u099c\u09cd\u09af \u09b9\u09af\u09bc)<\/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=\"\/bn\/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=\"\u0995\u09be\u09b0\u09cd\u099f\u09c7 \u09af\u09cb\u0997 \u0995\u09b0\u09c1\u09a8  \" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"\u0995\u09be\u09b0\u09cd\u099f\u09c7 \u09af\u09cb\u0997 \u0995\u09b0\u09c1\u09a8  \" 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=\"\/bn\/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=\"\u0995\u09be\u09b0\u09cd\u099f\u09c7 \u09af\u09cb\u0997 \u0995\u09b0\u09c1\u09a8: \u201cBalanset-4\u201d\" rel=\"nofollow\" data-success_message=\"\u0986\u09aa\u09a8\u09be\u09b0 \u0995\u09be\u09b0\u09cd\u099f\u09c7 \u201cBalanset-4\u201d \u09af\u09cb\u0997 \u0995\u09b0\u09be \u09b9\u09af\u09bc\u09c7\u099b\u09c7\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">\u0995\u09be\u09b0\u09cd\u099f\u09c7 \u09af\u09cb\u0997 \u0995\u09b0\u09c1\u09a8  <\/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\/bn\/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\/bn\/product\/magnet-stand\/\" title=\"\u09ae\u09cd\u09af\u09be\u0997\u09a8\u09c7\u099f\u09bf\u0995 \u09b8\u09cd\u099f\u09cd\u09af\u09be\u09a8\u09cd\u09a1 \u0987\u09a8\u09b8\u09be\u0987\u099c-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=\"\u099a\u09c1\u09ae\u09cd\u09ac\u0995 \u09ac\u09c7\u09b8\u0964\" 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\/bn\/product-category\/parts\/\" rel=\"tag\">\u0985\u0982\u09b6<\/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\/bn\/product\/magnet-stand\/\" title=\"\u09ae\u09cd\u09af\u09be\u0997\u09a8\u09c7\u099f\u09bf\u0995 \u09b8\u09cd\u099f\u09cd\u09af\u09be\u09a8\u09cd\u09a1 \u0987\u09a8\u09b8\u09be\u0987\u099c-60-kgf\">\u09ae\u09cd\u09af\u09be\u0997\u09a8\u09c7\u099f\u09bf\u0995 \u09b8\u09cd\u099f\u09cd\u09af\u09be\u09a8\u09cd\u09a1 \u0987\u09a8\u09b8\u09be\u0987\u099c-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> + \u09ad\u09cd\u09af\u09be\u099f (\u09af\u09a6\u09bf \u09aa\u09cd\u09b0\u09af\u09cb\u099c\u09cd\u09af \u09b9\u09af\u09bc)<\/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=\"\/bn\/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=\"\u0995\u09be\u09b0\u09cd\u099f\u09c7 \u09af\u09cb\u0997 \u0995\u09b0\u09c1\u09a8  \" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"\u0995\u09be\u09b0\u09cd\u099f\u09c7 \u09af\u09cb\u0997 \u0995\u09b0\u09c1\u09a8  \" 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=\"\/bn\/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=\"\u0995\u09be\u09b0\u09cd\u099f\u09c7 \u09af\u09cb\u0997 \u0995\u09b0\u09c1\u09a8: \u201cMagnetic Stand Insize-60-kgf\u201d\" rel=\"nofollow\" data-success_message=\"\u0986\u09aa\u09a8\u09be\u09b0 \u0995\u09be\u09b0\u09cd\u099f\u09c7 \u201cMagnetic Stand Insize-60-kgf\u201d \u09af\u09cb\u0997 \u0995\u09b0\u09be \u09b9\u09af\u09bc\u09c7\u099b\u09c7\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">\u0995\u09be\u09b0\u09cd\u099f\u09c7 \u09af\u09cb\u0997 \u0995\u09b0\u09c1\u09a8  <\/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\/bn\/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\/bn\/product\/reflective-tape\/\" title=\"\u09aa\u09cd\u09b0\u09a4\u09bf\u09ab\u09b2\u09bf\u09a4 \u099f\u09c7\u09aa\">\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=\"\u09aa\u09cd\u09b0\u09a4\u09bf\u09ab\u09b2\u09bf\u09a4 \u099f\u09c7\u09aa\" 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\/bn\/product-category\/parts\/\" rel=\"tag\">\u0985\u0982\u09b6<\/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\/bn\/product\/reflective-tape\/\" title=\"\u09aa\u09cd\u09b0\u09a4\u09bf\u09ab\u09b2\u09bf\u09a4 \u099f\u09c7\u09aa\">\u09aa\u09cd\u09b0\u09a4\u09bf\u09ab\u09b2\u09bf\u09a4 \u099f\u09c7\u09aa<\/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> + \u09ad\u09cd\u09af\u09be\u099f (\u09af\u09a6\u09bf \u09aa\u09cd\u09b0\u09af\u09cb\u099c\u09cd\u09af \u09b9\u09af\u09bc)<\/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=\"\/bn\/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=\"\u0995\u09be\u09b0\u09cd\u099f\u09c7 \u09af\u09cb\u0997 \u0995\u09b0\u09c1\u09a8  \" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"\u0995\u09be\u09b0\u09cd\u099f\u09c7 \u09af\u09cb\u0997 \u0995\u09b0\u09c1\u09a8  \" 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=\"\/bn\/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=\"\u0995\u09be\u09b0\u09cd\u099f\u09c7 \u09af\u09cb\u0997 \u0995\u09b0\u09c1\u09a8: \u201cReflective tape\u201d\" rel=\"nofollow\" data-success_message=\"\u0986\u09aa\u09a8\u09be\u09b0 \u0995\u09be\u09b0\u09cd\u099f\u09c7 \u201cReflective tape\u201d \u09af\u09cb\u0997 \u0995\u09b0\u09be \u09b9\u09af\u09bc\u09c7\u099b\u09c7\" 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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.jpg\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Balanset-1A kit contents with interface unit, sensors, tachometer and accessories\" srcset=\"\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" data-srcset=\"\" \/>\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\/bn\/product-category\/devices\/\" rel=\"tag\">\u09a1\u09bf\u09ad\u09be\u0987\u09b8<\/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\/bn\/product\/dynamic-balancer-balanset-1a\/\" title=\"\u09a1\u09be\u09af\u09bc\u09a8\u09be\u09ae\u09bf\u0995 \u09ac\u09cd\u09af\u09be\u09b2\u09c7\u09a8\u09cd\u09b8\u09be\u09b0 &quot;\u09ac\u09cd\u09af\u09be\u09b2\u09be\u09a8\u09b8\u09c7\u099f-1A&quot; OEM\">\u09a1\u09be\u09af\u09bc\u09a8\u09be\u09ae\u09bf\u0995 \u09ac\u09cd\u09af\u09be\u09b2\u09c7\u09a8\u09cd\u09b8\u09be\u09b0 &quot;\u09ac\u09cd\u09af\u09be\u09b2\u09be\u09a8\u09b8\u09c7\u099f-1A&quot; 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> + \u09ad\u09cd\u09af\u09be\u099f (\u09af\u09a6\u09bf \u09aa\u09cd\u09b0\u09af\u09cb\u099c\u09cd\u09af \u09b9\u09af\u09bc)<\/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=\"\/bn\/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=\"\u0995\u09be\u09b0\u09cd\u099f\u09c7 \u09af\u09cb\u0997 \u0995\u09b0\u09c1\u09a8  \" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"\u0995\u09be\u09b0\u09cd\u099f\u09c7 \u09af\u09cb\u0997 \u0995\u09b0\u09c1\u09a8  \" 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=\"\/bn\/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=\"\u0995\u09be\u09b0\u09cd\u099f\u09c7 \u09af\u09cb\u0997 \u0995\u09b0\u09c1\u09a8: \u201cDynamic balancer \u201cBalanset-1A\u201d OEM\u201d\" rel=\"nofollow\" data-success_message=\"\u0986\u09aa\u09a8\u09be\u09b0 \u0995\u09be\u09b0\u09cd\u099f\u09c7 \u201cDynamic balancer \u201cBalanset-1A\u201d OEM\u201d \u09af\u09cb\u0997 \u0995\u09b0\u09be \u09b9\u09af\u09bc\u09c7\u099b\u09c7\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">\u0995\u09be\u09b0\u09cd\u099f\u09c7 \u09af\u09cb\u0997 \u0995\u09b0\u09c1\u09a8  <\/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>Rolling element defects<\/strong> are damage, flaws, or imperfections in the balls or rollers of a rolling-element bearing. They include surface spalls, cracks, embedded contamination, material inclusions, corrosion, and geometric imperfections. When a damaged ball or roller rotates through the bearing it strikes both the inner and outer raceways, generating <a href=\"https:\/\/vibromera.eu\/bn\/glossary\/vibration\/\">vibration<\/a> at the <a href=\"https:\/\/vibromera.eu\/bn\/glossary\/bsf\/\">ball spin frequency (BSF)<\/a> with characteristic <a href=\"https:\/\/vibromera.eu\/bn\/glossary\/sidebands\/\">sidebands<\/a> spaced at the <a href=\"https:\/\/vibromera.eu\/bn\/glossary\/ftf\/\">cage, or fundamental train, frequency (FTF)<\/a>. Rolling element defects are one of the four classic localised <a href=\"https:\/\/vibromera.eu\/bn\/glossary\/bearing-defects\/\">bearing defects<\/a>, alongside inner-race, outer-race, and cage faults.<\/p>\n<p>They are less common than raceway defects, accounting for roughly 10\u201315% of bearing failures, but when they do occur they produce a distinctive, sometimes confusing signature and can progress rapidly to complete bearing failure. Because the fault rotates with the element rather than staying fixed in the load zone, its vibration behaves differently from a race fault \u2014 a quirk that is both a diagnostic clue and a trending headache.<\/p>\n<h2>1. Definition: What Are Rolling Element Defects?<\/h2>\n<p>A rolling element \u2014 the ball in a ball bearing, the cylinder, needle, or tapered roller in a roller bearing \u2014 is the component that actually carries the load between the two races while it rolls. Its surface is a precisely finished, through-hardened bearing-steel surface that must remain geometrically perfect to roll cleanly. Any breach of that surface, whether born in the steel mill or inflicted in service, becomes a stress raiser and an impact source.<\/p>\n<p>Each time the defect on the element contacts a race, it produces a small impulse. Over a full orbit of the cage the element contacts the outer race once and the inner race once, so a single defect tends to generate two impacts per element rotation \u2014 which is why the second harmonic, 2\u00d7BSF, is so prominent in the spectrum. The repetition rate of those impacts is fixed by the bearing geometry (ball diameter, pitch diameter, contact angle, and number of elements), giving the fault a calculable signature frequency that is unmistakably different from <a href=\"https:\/\/vibromera.eu\/bn\/glossary\/running-speed\/\">running speed<\/a> or its <a href=\"https:\/\/vibromera.eu\/bn\/glossary\/harmonics\/\">harmonics<\/a>.<\/p>\n<h2>2. Types of Rolling Element Defects<\/h2>\n<h3>Surface spalls<\/h3>\n<p>The most common rolling element defect. Rolling-contact fatigue causes a flake of material to break away from the surface, leaving a crater or pit. Spalls are typically 0.5\u20133 mm across at the outset but grow as the sharp edges of the cavity batter the races and shed further debris. Each pass of the spall over a race produces an impact, generating vibration at BSF and a frequently dominant 2\u00d7BSF. (See <a href=\"https:\/\/vibromera.eu\/bn\/glossary\/spalling\/\">spalling<\/a> for the underlying fatigue mechanism.)<\/p>\n<h3>Cracks<\/h3>\n<p>Cracks arise from overloading, impact damage, or fatigue, and may be surface-breaking or subsurface. A crack propagates until a piece breaks free \u2014 at which point it becomes a spall. Cracks are difficult to detect before that happens, and in severe cases a ball can fracture and fragment, producing sudden catastrophic failure.<\/p>\n<h3>Material inclusions<\/h3>\n<p>A manufacturing defect: foreign material or a void trapped in the bearing steel. Inclusions create a stress concentration that initiates premature fatigue, usually undetectable until spalling develops around the inclusion. Clean, high-quality bearing steel is the only real prevention.<\/p>\n<h3>Embedded contamination<\/h3>\n<p>Hard particles \u2014 dirt, grinding grit, metal chips \u2014 pressed into the element surface form a raised bump that hammers the races on every pass. The indentation also becomes a stress riser that can nucleate a spall. The result is impact vibration at BSF, and the root cause is almost always inadequate sealing or filtration, the same chain of events covered under <a href=\"https:\/\/vibromera.eu\/bn\/glossary\/bearing-lubrication\/\">bearing lubrication<\/a> cleanliness.<\/p>\n<h3>Corrosion and moisture damage<\/h3>\n<p>Water ingress or condensation produces rust spots, <a href=\"https:\/\/vibromera.eu\/bn\/glossary\/pitting\/\">pitting<\/a>, and surface roughness. Corroded areas act as fatigue-initiation sites. Proper sealing and corrosion-inhibited lubricants prevent it.<\/p>\n<h3>Brinelling and denting<\/h3>\n<p>Impact loading \u2014 dropping the bearing, shock during handling, or static overload \u2014 leaves permanent indentations in the element surface. False brinelling can also occur from vibration while the machine is stationary. These dents generate impacts and stress concentrations; careful handling and correct installation are the cure.<\/p>\n<h2>3. \u0995\u09ae\u09cd\u09aa\u09a8 \u09b8\u09cd\u09ac\u09be\u0995\u09cd\u09b7\u09b0<\/h2>\n<h3>Frequency content<\/h3>\n<p>Rolling element defects produce a recognisable pattern in the <a href=\"https:\/\/vibromera.eu\/bn\/glossary\/spectrum\/\">vibration spectrum<\/a>:<\/p>\n<ul>\n<li><strong>Primary frequency:<\/strong> BSF, typically 2\u20133\u00d7 running speed.<\/li>\n<li><strong>Strong second harmonic:<\/strong> 2\u00d7BSF is often larger than the fundamental, because the defect strikes both races during each element rotation.<\/li>\n<li><strong>Sideband spacing:<\/strong> FTF (cage frequency) sidebands \u2014 <em>not<\/em> 1\u00d7 sidebands. This is the key discriminator from an inner-race fault.<\/li>\n<li><strong>Pattern:<\/strong> BSF \u00b1 FTF, BSF \u00b1 2\u00d7FTF and so on, building a &#8220;picket fence&#8221; of peaks spaced at the cage frequency.<\/li>\n<\/ul>\n<p>Because the impacts are brief and high-frequency, they are usually buried in the raw spectrum and only emerge clearly after demodulation. <a href=\"https:\/\/vibromera.eu\/bn\/glossary\/envelope-analysis\/\">Envelope analysis<\/a> rectifies and band-pass filters the signal to expose the repetition rate, and the resulting <a href=\"https:\/\/vibromera.eu\/bn\/glossary\/envelope-spectrum\/\">envelope spectrum<\/a> is where the BSF\/FTF family is most visible. The closely related <a href=\"https:\/\/vibromera.eu\/bn\/glossary\/bearing-fault-frequencies\/\">bearing fault frequencies<\/a> for the inner race, outer race, and cage round out the diagnostic toolkit.<\/p>\n<h3>Distinguishing the four bearing faults<\/h3>\n<table border=\"1\" style=\"width:100%; border-collapse:collapse;\">\n<tr>\n<th>Feature<\/th>\n<th>Outer Race (<a href=\"https:\/\/vibromera.eu\/bn\/glossary\/bpfo\/\">BPFO<\/a>)<\/th>\n<th>Inner Race (<a href=\"https:\/\/vibromera.eu\/bn\/glossary\/bpfi\/\">BPFI<\/a>)<\/th>\n<th>Rolling Element (BSF)<\/th>\n<\/tr>\n<tr>\n<td>Primary frequency<\/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>Sideband spacing<\/td>\n<td>None or minimal<\/td>\n<td>\u00b11\u00d7 (shaft speed)<\/td>\n<td>\u00b1FTF (cage speed)<\/td>\n<\/tr>\n<tr>\n<td>Amplitude stability<\/td>\n<td>Relatively stable<\/td>\n<td>Stable<\/td>\n<td>Variable (depends on ball position)<\/td>\n<\/tr>\n<tr>\n<td>Occurrence<\/td>\n<td>Most common (~40%)<\/td>\n<td>Common (~35%)<\/td>\n<td>Least common (~10\u201315%)<\/td>\n<\/tr>\n<\/table>\n<h3>Amplitude variability<\/h3>\n<p>A signature feature of ball defects is that the measured amplitude wanders between readings:<\/p>\n<ul>\n<li>When the defective element rolls through the load zone, the impacts are firm and the amplitude is high.<\/li>\n<li>When the same element is on the unloaded side of the bearing, the contact is light and the amplitude drops.<\/li>\n<li>This modulation is governed by the cage frequency (hence the FTF sidebands) and can make simple <a href=\"https:\/\/vibromera.eu\/bn\/glossary\/trending\/\">trending<\/a> erratic \u2014 but the very fact that the level breathes up and down is itself diagnostic for a rolling element fault.<\/li>\n<\/ul>\n<h2>4. Progression and Consequences<\/h2>\n<h3>Defect development<\/h3>\n<ol>\n<li><strong>Initiation:<\/strong> a small surface crack or a subsurface inclusion.<\/li>\n<li><strong>Micro-spall:<\/strong> a tiny piece of material breaks free.<\/li>\n<li><strong>Spall growth:<\/strong> impacts at the spall edges propagate the damage.<\/li>\n<li><strong>Multiple spalls:<\/strong> circulating debris abrades the surface and seeds further defects.<\/li>\n<li><strong>Ball fragmentation:<\/strong> in severe cases an entire ball cracks and breaks apart.<\/li>\n<li><strong>\u09b8\u09ae\u09cd\u09aa\u09c2\u09b0\u09cd\u09a3 \u09ac\u09cd\u09af\u09b0\u09cd\u09a5\u09a4\u09be:<\/strong> the bearing loses load-carrying capacity, often seizing.<\/li>\n<\/ol>\n<h3>Secondary damage<\/h3>\n<ul>\n<li><strong>Race damage:<\/strong> the defective element scores both the inner and outer raceways.<\/li>\n<li><strong>Debris circulation:<\/strong> spalled material drives three-body abrasion throughout the bearing.<\/li>\n<li><strong>\u0996\u09be\u0981\u099a\u09be \u0995\u09cd\u09b7\u09a4\u09bf:<\/strong> a roughened element wears the cage pockets.<\/li>\n<li><strong>Rapid deterioration:<\/strong> once one element is damaged the others follow quickly, so the window between detectable fault and failure is short.<\/li>\n<\/ul>\n<h2>5. Common Causes<\/h2>\n<h3>Manufacturing and material defects<\/h3>\n<ul>\n<li>Internal inclusions or voids in the element material.<\/li>\n<li>Improper heat treatment leaving inadequate or uneven hardness.<\/li>\n<li>Surface-finish defects.<\/li>\n<li>Geometric imperfections such as out-of-round balls.<\/li>\n<\/ul>\n<h3>Installation damage<\/h3>\n<ul>\n<li>Impact during handling \u2014 dropping or striking the bearing.<\/li>\n<li>Brinelling from static overload, or false brinelling from vibration while stationary.<\/li>\n<li>Contamination introduced during fitting, embedding particles in the surface.<\/li>\n<\/ul>\n<h3>Operating conditions<\/h3>\n<ul>\n<li>Inadequate lubrication causing surface distress and micro-welding.<\/li>\n<li>Overloading that accelerates rolling-contact fatigue.<\/li>\n<li>Stray electrical current passing through the bearing, causing fluting and pitting.<\/li>\n<li>Corrosive environments attacking the element surfaces.<\/li>\n<li>Hard-particle contamination creating indentations.<\/li>\n<\/ul>\n<h2>6. Detection, Diagnosis, and Corrective Action<\/h2>\n<h3>Vibration analysis<\/h3>\n<ul>\n<li>Calculate BSF and FTF for the specific bearing geometry \u2014 a <a href=\"https:\/\/vibromera.eu\/bn\/calculators\/bearing-defect-frequencies\/\">Bearing Defect Frequency Calculator<\/a> turns shaft speed and bearing dimensions straight into BPFO, BPFI, BSF, and FTF.<\/li>\n<li>Search the envelope spectrum for the BSF peak.<\/li>\n<li>Verify the FTF sideband pattern \u2014 the single most reliable confirmation of a rolling element fault.<\/li>\n<li>Check 2\u00d7BSF, which often exceeds the fundamental in amplitude.<\/li>\n<li>Take several measurements; the expected amplitude variability is itself confirmatory.<\/li>\n<\/ul>\n<p>In the field, this whole sequence \u2014 measuring the broadband level, capturing the spectrum, and running envelope analysis \u2014 is exactly the kind of bearing diagnostic a portable two-channel analyser is built for. The <a href=\"https:\/\/vibromera.eu\/bn\/%e0%a6%aa%e0%a6%a3%e0%a7%8d%e0%a6%af\/balanset-1\/\">\u09ac\u09cd\u09af\u09be\u09b2\u09be\u09a8\u09b8\u09c7\u099f-\u09e7\u098f<\/a> records the FFT spectrum and time waveform from the machine&#8217;s own bearing housings at operating speed, so an analyst can spot the BSF family and its FTF sidebands on-site without stripping the machine, then classify the damage with a tool such as the <a href=\"https:\/\/vibromera.eu\/bn\/calculators\/bearing-damage-classifier\/\">Bearing Damage Classifier (ISO 15243)<\/a>. The same instrument also lets you confirm the bearing fault is genuine and not simply a structural artefact before committing to a replacement.<\/p>\n<h3>Physical inspection<\/h3>\n<ul>\n<li>Disassemble the bearing and inspect each ball or roller individually.<\/li>\n<li>Look for spalls, cracks, embedded material, and corrosion.<\/li>\n<li>Feel for surface roughness \u2014 smooth versus gritty elements.<\/li>\n<li>Check geometric accuracy (out-of-round).<\/li>\n<li>Photograph every defect for the maintenance record.<\/li>\n<\/ul>\n<h3>Corrective action and root cause<\/h3>\n<p>The immediate response is to increase monitoring frequency in line with <a href=\"https:\/\/vibromera.eu\/bn\/glossary\/defect-severity\/\">defect severity<\/a>, plan a bearing replacement, and check the races for secondary damage. The lasting fix lies in root-cause analysis: review the bearing selection and rating, verify lubrication adequacy, hunt down contamination sources, audit installation practice, and consider an upgraded bearing specification where the failure was premature. Feeding these findings back into a structured <a href=\"https:\/\/vibromera.eu\/bn\/glossary\/condition-monitoring\/\">condition monitoring<\/a> programme is what turns a one-off failure into a prevented one.<\/p>\n<p>Rolling element defects, though less common than raceway defects, demand a clear understanding of their distinctive BSF signature with FTF sidebands for accurate diagnosis. Early detection through envelope analysis enables planned maintenance long before the defect cascades into severe bearing damage and possible catastrophic failure.<\/p>\n<hr>\n<p><a href=\"https:\/\/vibromera.eu\/bn\/glossary\/\">\u2190 \u09aa\u09cd\u09b0\u09a7\u09be\u09a8 \u09b8\u09c2\u099a\u09bf\u09a4\u09c7 \u09ab\u09bf\u09b0\u09c1\u09a8<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Learn about rolling element defects in bearings, damage to balls or rollers including spalls, cracks, and material flaws, detectable through BSF frequency and FTF sidebands.<\/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\/bn\/wp-json\/wp\/v2\/glossary\/20649","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/bn\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/vibromera.eu\/bn\/wp-json\/wp\/v2\/types\/glossary"}],"version-history":[{"count":1,"href":"https:\/\/vibromera.eu\/bn\/wp-json\/wp\/v2\/glossary\/20649\/revisions"}],"predecessor-version":[{"id":101399,"href":"https:\/\/vibromera.eu\/bn\/wp-json\/wp\/v2\/glossary\/20649\/revisions\/101399"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/bn\/wp-json\/wp\/v2\/media?parent=20649"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/bn\/wp-json\/wp\/v2\/categories?post=20649"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/bn\/wp-json\/wp\/v2\/tags?post=20649"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}