{"id":139,"date":"2025-10-31T00:25:51","date_gmt":"2025-10-31T00:25:51","guid":{"rendered":"https:\/\/vibromera.eu\/glossary\/hunting-tooth-frequency\/"},"modified":"2026-07-02T18:32:53","modified_gmt":"2026-07-02T18:32:53","slug":"hunting-tooth-frequency","status":"publish","type":"glossary","link":"https:\/\/vibromera.eu\/mr\/glossary\/hunting-tooth-frequency\/","title":{"rendered":"What is Hunting Tooth Frequency? Gear Pattern Repeat"},"content":{"rendered":"<h1>\u0939\u0902\u091f\u093f\u0902\u0917 \u091f\u0942\u0925 \u092b\u094d\u0930\u093f\u0915\u094d\u0935\u0947\u0928\u094d\u0938\u0940 \u0938\u092e\u091c\u0942\u0928 \u0918\u0947\u0923\u0947<\/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\/mr\/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\/mr\/product\/balanset-1\/\" title=\"\u092a\u094b\u0930\u094d\u091f\u0947\u092c\u0932 \u092c\u0945\u0932\u0928\u094d\u0938\u0930 \u0906\u0923\u093f \u0915\u0902\u092a\u0928 \u0935\u093f\u0936\u094d\u0932\u0947\u0937\u0915 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 \u0938\u0902\u092a\u0942\u0930\u094d\u0923 \u0915\u093f\u091f \u092a\u094b\u0930\u094d\u091f\u0947\u092c\u0932 \u0938\u0902\u0924\u0941\u0932\u0915 \u0906\u0923\u093f \u0915\u0902\u092a\u0928 \u0935\u093f\u0936\u094d\u0932\u0947\u0937\u0915\" 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\/mr\/product-category\/devices\/\" rel=\"tag\">Devices<\/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\/mr\/product\/balanset-1\/\" title=\"\u092a\u094b\u0930\u094d\u091f\u0947\u092c\u0932 \u092c\u0945\u0932\u0928\u094d\u0938\u0930 \u0906\u0923\u093f \u0915\u0902\u092a\u0928 \u0935\u093f\u0936\u094d\u0932\u0947\u0937\u0915 Balanset-1A\">\u092a\u094b\u0930\u094d\u091f\u0947\u092c\u0932 \u092c\u0945\u0932\u0947\u0928\u094d\u0938\u0930 &#038; \u0935\u094d\u0939\u093e\u092f\u092c\u094d\u0930\u0947\u0936\u0928 \u0905\u200d\u0945\u0928\u093e\u0932\u093e\u092f\u091d\u0930 Balanset-1A<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">&euro;<\/span>1,975.00<\/span> + VAT (\u0932\u093e\u0917\u0942 \u0905\u0938\u0932\u094d\u092f\u093e\u0938)<\/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=\"\/mr\/wp-json\/wp\/v2\/glossary\/139?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=\"Add to cart\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Add to cart\" 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=\"\/mr\/wp-json\/wp\/v2\/glossary\/139?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=\"Add to cart: \u201cPortable balancer &amp; Vibration analyzer Balanset-1A\u201d\" rel=\"nofollow\" data-success_message=\"\u201cPortable balancer &amp; Vibration analyzer Balanset-1A\u201d has been added to your cart\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Add to cart<\/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\/mr\/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\/mr\/product\/vibration-sensor\/\" title=\"\u0915\u0902\u092a\u0928 \u0938\u0902\u0935\u0947\u0926\u0915\">\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 \u0915\u0902\u092a\u0928 \u0938\u0902\u0935\u0947\u0926\u0928\u0936\u0940\u0932 \u091c\u0935\u0933\u0942\u0928\" 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\/mr\/product-category\/parts\/\" rel=\"tag\">Parts<\/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\/mr\/product\/vibration-sensor\/\" title=\"\u0915\u0902\u092a\u0928 \u0938\u0902\u0935\u0947\u0926\u0915\">\u0915\u0902\u092a\u0928 \u0938\u0902\u0935\u0947\u0926\u0915<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">&euro;<\/span>90.00<\/span> + VAT (\u0932\u093e\u0917\u0942 \u0905\u0938\u0932\u094d\u092f\u093e\u0938)<\/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=\"\/mr\/wp-json\/wp\/v2\/glossary\/139?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=\"Add to cart\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Add to cart\" 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=\"\/mr\/wp-json\/wp\/v2\/glossary\/139?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=\"Add to cart: \u201cVibration sensor\u201d\" rel=\"nofollow\" data-success_message=\"\u201cVibration sensor\u201d has been added to your cart\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Add to cart<\/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\/mr\/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\/mr\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"\u0911\u092a\u094d\u091f\u093f\u0915\u0932 \u0938\u0947\u0928\u094d\u0938\u0930 (\u0932\u0947\u091d\u0930 \u091f\u0945\u0915\u094b\u092e\u0940\u091f\u0930)\">\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=\"\u0911\u092a\u094d\u091f\u093f\u0915\u0932 \u0938\u0947\u0928\u094d\u0938\u0930 (\u0932\u0947\u091d\u0930 \u091f\u0945\u0915\u094b\u092e\u0940\u091f\u0930)\" 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\/mr\/product-category\/parts\/\" rel=\"tag\">Parts<\/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\/mr\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"\u0911\u092a\u094d\u091f\u093f\u0915\u0932 \u0938\u0947\u0928\u094d\u0938\u0930 (\u0932\u0947\u091d\u0930 \u091f\u0945\u0915\u094b\u092e\u0940\u091f\u0930)\">\u0911\u092a\u094d\u091f\u093f\u0915\u0932 \u0938\u0947\u0928\u094d\u0938\u0930 (\u0932\u0947\u091d\u0930 \u091f\u0945\u0915\u094b\u092e\u0940\u091f\u0930)<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">&euro;<\/span>124.00<\/span> + VAT (\u0932\u093e\u0917\u0942 \u0905\u0938\u0932\u094d\u092f\u093e\u0938)<\/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=\"\/mr\/wp-json\/wp\/v2\/glossary\/139?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=\"Add to cart\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Add to cart\" 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=\"\/mr\/wp-json\/wp\/v2\/glossary\/139?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=\"Add to cart: \u201cOptical Sensor (Laser Tachometer)\u201d\" rel=\"nofollow\" data-success_message=\"\u201cOptical Sensor (Laser Tachometer)\u201d has been added to your cart\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Add to cart<\/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\/mr\/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\/mr\/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 \u0930\u094b\u091f\u0930 \u0938\u0902\u0924\u0941\u0932\u0928 \u0915\u093f\u091f: \u0935\u0939\u0928 \u0915\u0947\u0938, \u092c\u0939\u0941-\u091a\u0945\u0928\u0932 \u0938\u093f\u0917\u094d\u0928\u0932 \u0915\u0902\u0921\u093f\u0936\u0928\u0930, \u0939\u093e\u0925 \u092a\u0915\u0921\u0928\u0947 \u0935\u093e\u0932\u0940 \u0935\u093f\u0936\u094d\u0932\u0947\u0937\u0915, \u091a\u0941\u0902\u092c\u0915\u0940\u092f \u0906\u0927\u093e\u0930, \u0915\u0902\u092a\u0928 \u0938\u0902\u0935\u0947\u0926\u0915, \u0906\u0923\u093f \u0915\u0949\u0907\u0932 \u0915\u0947\u092c\u0932.\" 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\/mr\/product-category\/devices\/\" rel=\"tag\">Devices<\/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\/mr\/product\/balanset-4\/\" title=\"Balanset-4\">Balanset-4<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">&euro;<\/span>6,803.00<\/span> + VAT (\u0932\u093e\u0917\u0942 \u0905\u0938\u0932\u094d\u092f\u093e\u0938)<\/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=\"\/mr\/wp-json\/wp\/v2\/glossary\/139?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=\"Add to cart\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Add to cart\" 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=\"\/mr\/wp-json\/wp\/v2\/glossary\/139?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=\"Add to cart: \u201cBalanset-4\u201d\" rel=\"nofollow\" data-success_message=\"\u201cBalanset-4\u201d has been added to your cart\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Add to cart<\/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\/mr\/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\/mr\/product\/magnet-stand\/\" title=\"\u092e\u0945\u0917\u094d\u0928\u0947\u091f\u093f\u0915 \u0938\u094d\u091f\u0901\u0921 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=\"Magnet base.\" 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\/mr\/product-category\/parts\/\" rel=\"tag\">Parts<\/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\/mr\/product\/magnet-stand\/\" title=\"\u092e\u0945\u0917\u094d\u0928\u0947\u091f\u093f\u0915 \u0938\u094d\u091f\u0901\u0921 Insize-60-kgf\">\u092e\u0945\u0917\u094d\u0928\u0947\u091f\u093f\u0915 \u0938\u094d\u091f\u0901\u0921 Insize-60-kgf<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">&euro;<\/span>46.00<\/span> + VAT (\u0932\u093e\u0917\u0942 \u0905\u0938\u0932\u094d\u092f\u093e\u0938)<\/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=\"\/mr\/wp-json\/wp\/v2\/glossary\/139?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=\"Add to cart\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Add to cart\" 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=\"\/mr\/wp-json\/wp\/v2\/glossary\/139?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=\"Add to cart: \u201cMagnetic Stand Insize-60-kgf\u201d\" rel=\"nofollow\" data-success_message=\"\u201cMagnetic Stand Insize-60-kgf\u201d has been added to your cart\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Add to cart<\/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\/mr\/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\/mr\/product\/reflective-tape\/\" title=\"\u092a\u0930\u093e\u0935\u0930\u094d\u0924\u0915 \u091f\u0947\u092a\">\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=\"\u092a\u0930\u093e\u0935\u0930\u094d\u0924\u0915 \u091f\u0947\u092a\" 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\/mr\/product-category\/parts\/\" rel=\"tag\">Parts<\/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\/mr\/product\/reflective-tape\/\" title=\"\u092a\u0930\u093e\u0935\u0930\u094d\u0924\u0915 \u091f\u0947\u092a\">\u092a\u0930\u093e\u0935\u0930\u094d\u0924\u0915 \u091f\u0947\u092a<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">&euro;<\/span>10.00<\/span> + VAT (\u0932\u093e\u0917\u0942 \u0905\u0938\u0932\u094d\u092f\u093e\u0938)<\/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=\"\/mr\/wp-json\/wp\/v2\/glossary\/139?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=\"Add to cart\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Add to cart\" 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=\"\/mr\/wp-json\/wp\/v2\/glossary\/139?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=\"Add to cart: \u201cReflective tape\u201d\" rel=\"nofollow\" data-success_message=\"\u201cReflective tape\u201d has been added to your cart\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Add to cart<\/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\/mr\/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\/mr\/product\/dynamic-balancer-balanset-1a\/\" title=\"\u0921\u093e\u092f\u0928\u093e\u092e\u093f\u0915 \u092c\u0945\u0932\u0928\u094d\u0938\u0930 \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=\"Balanset-1A \u0915\u093f\u091f \u0938\u093e\u092e\u0917\u094d\u0930\u0940 \u0907\u0902\u091f\u0930\u092b\u0947\u0938 \u092f\u0941\u0928\u093f\u091f, \u0938\u0902\u0935\u0947\u0926\u0915, \u091f\u0945\u0915\u094b\u092e\u0940\u091f\u0930 \u0906\u0923\u093f \u0905\u0928\u0941\u0937\u0902\u0917\u0940 \u0938\u0939\" 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\/mr\/product-category\/devices\/\" rel=\"tag\">Devices<\/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\/mr\/product\/dynamic-balancer-balanset-1a\/\" title=\"\u0921\u093e\u092f\u0928\u093e\u092e\u093f\u0915 \u092c\u0945\u0932\u0928\u094d\u0938\u0930 \u201cBalanset-1A\u201d OEM\">\u0921\u093e\u092f\u0928\u093e\u092e\u093f\u0915 \u092c\u0945\u0932\u0928\u094d\u0938\u0930 \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\">&euro;<\/span>1,735.00<\/span> + VAT (\u0932\u093e\u0917\u0942 \u0905\u0938\u0932\u094d\u092f\u093e\u0938)<\/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=\"\/mr\/wp-json\/wp\/v2\/glossary\/139?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=\"Add to cart\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Add to cart\" 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=\"\/mr\/wp-json\/wp\/v2\/glossary\/139?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=\"Add to cart: \u201cDynamic balancer \u201cBalanset-1A\u201d OEM\u201d\" rel=\"nofollow\" data-success_message=\"\u201cDynamic balancer \u201cBalanset-1A\u201d OEM\u201d has been added to your cart\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Add to cart<\/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>\u0939\u0902\u091f\u093f\u0902\u0917 \u091f\u0942\u0925 \u092b\u094d\u0930\u093f\u0915\u094d\u0935\u0947\u0928\u094d\u0938\u0940<\/strong> (HTF \u2014 \u091c\u094d\u092f\u093e\u0932\u093e assembly phase frequency \u0915\u093f\u0902\u0935\u093e greatest-common-divisor frequency \u0905\u0938\u0947\u0939\u0940 \u092e\u094d\u0939\u0923\u0924\u093e\u0924) \u0939\u0940 \u0915\u092e\u0940-\u0935\u093e\u0930\u0902\u0935\u093e\u0930\u0924\u0947\u091a\u0940 <a href=\"https:\/\/vibromera.eu\/mr\/glossary\/vibration\/\">vibration<\/a> \u0918\u091f\u0915 \u0935\u093e\u0930\u0902\u0935\u093e\u0930\u0924\u093e \u0906\u0939\u0947 \u091c\u0940 gear pair \u092e\u0927\u094d\u092f\u0947 <em>\u0938\u092e\u093e\u0928<\/em> individual tooth on the pinion comes back into contact with the same individual tooth on the gear. It is governed by the least common multiple (LCM) of the two tooth counts and is normally a very low frequency \u2014 well below shaft speed \u2014 that appears as a slow, periodic amplitude modulation of the <a href=\"https:\/\/vibromera.eu\/mr\/glossary\/gear-mesh-frequency\/\">\u0917\u0940\u0905\u0930 \u092e\u0947\u0936 \u0935\u093e\u0930\u0902\u0935\u093e\u0930\u093f\u0924\u093e (GMF)<\/a> \u0906\u0923\u093f \u0924\u094d\u092f\u093e\u091a\u0947 <a href=\"https:\/\/vibromera.eu\/mr\/glossary\/sidebands\/\">sidebands<\/a>.<\/p>\n<p>HTF \u0928\u093f\u0926\u093e\u0928\u093e\u0938\u093e\u0920\u0940 \u092e\u0939\u0924\u094d\u0924\u094d\u0935\u093e\u091a\u093e \u0906\u0939\u0947 \u0915\u093e\u0930\u0923 \u092f\u093e \u0926\u0930\u093e\u0935\u0930 \u092f\u0947\u0923\u093e\u0930\u0947 vibration \u0939\u0947 <em>\u0935\u093f\u0936\u093f\u0937\u094d\u091f \u0938\u094d\u0935\u0924\u0902\u0924\u094d\u0930 \u0926\u093e\u0924<\/em> \u2014 \u091c\u0938\u0947 crack \u091d\u093e\u0932\u0947\u0932\u093e tooth, \u0938\u094d\u0925\u093e\u0928\u093f\u0915 spall \u0915\u093f\u0902\u0935\u093e eccentric mounting \u2014 \u092f\u093e\u0902\u092e\u0927\u0940\u0932 \u0938\u092e\u0938\u094d\u092f\u093e\u0902\u0915\u0921\u0947 \u0928\u093f\u0930\u094d\u0926\u0947\u0936 \u0915\u0930\u0924\u0947, gear set \u091a\u094d\u092f\u093e \u0938\u0930\u094d\u0935\u0938\u093e\u0927\u093e\u0930\u0923 \u0938\u094d\u0925\u093f\u0924\u0940\u0915\u0921\u0947 \u0928\u0935\u094d\u0939\u0947. \u0924\u094d\u092f\u093e\u092e\u0941\u0933\u0947 HTF sidebands \u0913\u0933\u0916\u0932\u094d\u092f\u093e\u0938 \u0935\u093f\u0936\u094d\u0932\u0947\u0937\u0915\u093e\u0932\u093e \u0928\u0947\u092e\u0915\u093e \u0915\u094b\u0923\u0924\u093e gear, \u0906\u0923\u093f \u0905\u0917\u0926\u0940 \u0915\u094b\u0923\u0924\u093e tooth, \u0926\u094b\u0937\u093e\u091a\u093e \u0938\u094d\u0930\u094b\u0924 \u0906\u0939\u0947 \u0939\u0947 \u0936\u094b\u0927\u0924\u093e \u092f\u0947\u0924\u0947; \u092e\u094d\u0939\u0923\u0942\u0928\u091a <a href=\"https:\/\/vibromera.eu\/mr\/glossary\/gear-defects\/\">\u0917\u093f\u0905\u0930 \u0926\u094b\u0937<\/a> \u0928\u093f\u0926\u093e\u0928.<\/p>\n<h2>1. \u0935\u094d\u092f\u093e\u0916\u094d\u092f\u093e \u0906\u0923\u093f \u092d\u094c\u0924\u093f\u0915 \u0905\u0930\u094d\u0925<\/h2>\n<p>\u0926\u094b\u0928 gears \u090f\u0915\u0924\u094d\u0930 \u091a\u093e\u0932\u0924 \u0905\u0938\u0924\u093e\u0928\u093e pinion \u091a\u093e \u0926\u093f\u0932\u0947\u0932\u093e tooth \u090f\u0915\u093e\u092e\u093e\u0917\u0942\u0928 \u090f\u0915 \u0905\u0928\u0947\u0915 gear teeth \u0936\u0940 \u092a\u094d\u0930\u0924\u094d\u092f\u0947\u0915 revolution \u092e\u0927\u094d\u092f\u0947 mesh \u0939\u094b\u0924\u094b. \u0924\u094b \u092a\u0941\u0928\u094d\u0939\u093e \u0924\u094d\u092f\u093e\u0928\u0947 \u092a\u0939\u093f\u0932\u094d\u092f\u093e\u0902\u0926\u093e \u0938\u094d\u092a\u0930\u094d\u0936 \u0915\u0947\u0932\u0947\u0932\u094d\u092f\u093e gear tooth \u0915\u0921\u0947 \u0915\u0927\u0940 \u092a\u0930\u0924 \u092f\u0947\u0924\u094b \u2014 \u0906\u0923\u093f \u0915\u093f\u0924\u0940 \u0932\u0935\u0915\u0930 \u2014 \u0939\u0947 \u0926\u094b\u0928\u094d\u0939\u0940 tooth counts \u092e\u0927\u0940\u0932 \u0905\u0902\u0915\u0917\u0923\u093f\u0924\u0940\u092f \u0938\u0902\u092c\u0902\u0927\u093e\u0935\u0930 \u0905\u0935\u0932\u0902\u092c\u0942\u0928 \u0905\u0938\u0924\u0947. Hunting tooth frequency \u092e\u094d\u0939\u0923\u091c\u0947 \u0924\u094d\u092f\u093e \u092a\u0941\u0928\u0930\u093e\u0917\u092e\u0928\u093e\u091a\u093e \u0926\u0930. HTF \u0915\u092e\u0940 \u0905\u0938\u0932\u094d\u092f\u093e\u0938 \u0935\u093f\u0936\u093f\u0937\u094d\u091f tooth pair \u092b\u093e\u0930 \u0915\u094d\u0935\u091a\u093f\u0924 \u092d\u0947\u091f\u0924\u0947; HTF \u091c\u093e\u0938\u094d\u0924 \u0905\u0938\u0932\u094d\u092f\u093e\u0938 \u0924\u0947\u091a \u0915\u093e\u0939\u0940 tooth pairs \u0935\u093e\u0930\u0902\u0935\u093e\u0930 \u092d\u0947\u091f\u0924\u093e\u0924.<\/p>\n<p>\u092f\u093e\u091a\u0947 \u0926\u094b\u0928 \u0935\u093f\u0930\u0941\u0926\u094d\u0927 \u092a\u0930\u093f\u0923\u093e\u092e \u0939\u094b\u0924\u093e\u0924. Wear \u091a\u094d\u092f\u093e \u0926\u0943\u0937\u094d\u091f\u0940\u0928\u0947 \u0915\u092e\u0940 HTF \u091a\u093e\u0902\u0917\u0932\u093e: damage \u0906\u0923\u093f manufacturing error \u0938\u0930\u094d\u0935 teeth \u092e\u0927\u094d\u092f\u0947 \u092a\u0938\u0930\u0924\u093e\u0924. Diagnostics \u091a\u094d\u092f\u093e \u0926\u0943\u0937\u094d\u091f\u0940\u0928\u0947 \u0939\u093e\u091a \u0915\u092e\u0940 HTF \u090f\u0915\u093e \u0916\u0930\u093e\u092c tooth \u091a\u0940 vibration signature \u0938\u094d\u0935\u091a\u094d\u091b once-per-revolution \u0918\u091f\u0928\u093e \u092e\u094d\u0939\u0923\u0942\u0928 \u090f\u0915\u0935\u091f\u0924\u094b, \u091c\u0940 \u0938\u0939\u091c \u0926\u093f\u0938\u0924\u0947. \u0939\u093e \u0906\u0915\u0921\u093e \u0938\u092e\u091c\u0932\u094d\u092f\u093e\u0938 \u0926\u094b\u0928\u094d\u0939\u0940 \u0917\u094b\u0937\u094d\u091f\u0940 \u090f\u0915\u093e\u091a \u0935\u0947\u0933\u0940 \u0935\u093e\u091a\u0924\u093e \u092f\u0947\u0924\u093e\u0924.<\/p>\n<h2>2. \u0917\u0923\u093f\u0924\u0940\u092f \u092a\u093e\u092f\u093e<\/h2>\n<h3>\u0938\u0942\u0924\u094d\u0930<\/h3>\n<blockquote><p>HTF = GMF \/ LCM(N\u2081, N\u2082) = GMF \u00d7 GCD(N\u2081, N\u2082) \/ (N\u2081 \u00d7 N\u2082)<\/p><\/blockquote>\n<ul>\n<li>N\u2081 = pinion \u0935\u0930\u0940\u0932 teeth \u091a\u0940 \u0938\u0902\u0916\u094d\u092f\u093e<\/li>\n<li>N\u2082 = gear \u0935\u0930\u0940\u0932 teeth \u091a\u0940 \u0938\u0902\u0916\u094d\u092f\u093e<\/li>\n<li>GMF = gear mesh frequency = N\u2081 \u00d7 pinion speed (Hz) = N\u2082 \u00d7 gear speed (Hz)<\/li>\n<li>LCM = the least common multiple of N\u2081 and N\u2082 (equal to N\u2081 \u00d7 N\u2082 \/ GCD, where GCD is the greatest common divisor)<\/li>\n<\/ul>\n<p>HTF \u091c\u094d\u092f\u093e\u0932\u093e modulate \u0915\u0930\u0924\u094b \u0924\u094b GMF \u0938\u094d\u0935\u0924\u0903 \u0915\u094b\u0923\u0924\u094d\u092f\u093e\u0939\u0940 gear \u0938\u093e\u0920\u0940 N \u00d7 shaft speed \u0905\u0938\u0924\u094b; a <a href=\"https:\/\/vibromera.eu\/mr\/calculators\/gear-mesh-frequency\/\">\u0917\u0940\u0905\u0930 \u092e\u0947\u0936 \u092b\u094d\u0930\u093f\u0915\u094d\u0935\u0947\u0928\u094d\u0938\u0940 \u0915\u0945\u0932\u094d\u0915\u094d\u092f\u0941\u0932\u0947\u091f\u0930<\/a> GMF \u0906\u0923\u093f \u0924\u094d\u092f\u093e\u091a\u093e sideband family \u0925\u0947\u091f \u092e\u094b\u091c\u0924\u094b, \u0924\u0930 a <a href=\"https:\/\/vibromera.eu\/mr\/calculators\/gear-ratio-calculator\/\">gear ratio calculator<\/a> \u0938\u0942\u0924\u094d\u0930 \u0932\u093e\u0917\u0942 \u0915\u0930\u0923\u094d\u092f\u093e\u092a\u0942\u0930\u094d\u0935\u0940 \u0932\u093e\u0917\u0923\u093e\u0930\u093e input\/output speed \u0938\u0902\u092c\u0902\u0927 \u0939\u093e\u0924\u093e\u0933\u0924\u094b.<\/p>\n<h3>\u0909\u0926\u093e\u0939\u0930\u0923 1: hunting-tooth pair<\/h3>\n<ul>\n<li><strong>\u092a\u093f\u0928\u093f\u092f\u0928:<\/strong> 1800 RPM \u0935\u0930\u0940\u0932 23 \u0926\u093e\u0924<\/li>\n<li><strong>\u0917\u093f\u0905\u0930:<\/strong> 67 \u0926\u093e\u0924<\/li>\n<li><strong>GCD(23, 67):<\/strong> 1 \u2014 both are prime, so they share no common factor; LCM(23, 67) = 23 \u00d7 67 = 1541<\/li>\n<li><strong>GMF:<\/strong> 23 \u00d7 (1800 \/ 60) = 690 Hz<\/li>\n<li><strong>HTF = 690 \/ 1541 \u2248 0.45 Hz<\/strong> \u2014 the same tooth pair meets only about once every 2.2 seconds, far below the 30 Hz pinion shaft speed<\/li>\n<li><strong>\u0905\u0930\u094d\u0925:<\/strong> pattern repeat \u0939\u094b\u0923\u094d\u092f\u093e\u092a\u0942\u0930\u094d\u0935\u0940 pinion \u091a\u093e \u092a\u094d\u0930\u0924\u094d\u092f\u0947\u0915 tooth gear \u091a\u094d\u092f\u093e \u092a\u094d\u0930\u0924\u094d\u092f\u0947\u0915 tooth \u0936\u0940 mesh \u0939\u094b\u0924\u094b<\/li>\n<li><strong>Result:<\/strong> \u0938\u0930\u094d\u0935\u094b\u0924\u094d\u0924\u092e wear distribution \u0905\u0938\u0932\u0947\u0932\u093e \u0916\u0930\u093e hunting-tooth gear<\/li>\n<\/ul>\n<h3>\u0909\u0926\u093e\u0939\u0930\u0923 2: non-hunting pair<\/h3>\n<ul>\n<li><strong>\u092a\u093f\u0928\u093f\u092f\u0928:<\/strong> 1800 RPM \u0935\u0930 20 \u0926\u093e\u0924<\/li>\n<li><strong>\u0917\u093f\u0905\u0930:<\/strong> 60 \u0926\u093e\u0924<\/li>\n<li><strong>GCD(20, 60):<\/strong> 20; LCM(20, 60) = 60<\/li>\n<li><strong>GMF:<\/strong> 20 \u00d7 (1800 \/ 60) = 600 Hz<\/li>\n<li><strong>HTF = 600 \/ 60 = 10 Hz<\/strong> \u2014 equal to the output (gear) shaft speed<\/li>\n<li><strong>\u0905\u0930\u094d\u0925:<\/strong> only 20 distinct tooth pairs exist, and each pair re-meshes ten times every second<\/li>\n<li><strong>Result:<\/strong> \u0924\u094d\u092f\u093e\u091a teeth \u0935\u0930 \u090f\u0915\u0935\u091f\u0932\u0947\u0932\u093e wear pattern<\/li>\n<\/ul>\n<h3>\u0909\u0926\u093e\u0939\u0930\u0923 3: \u092e\u0927\u094d\u092f\u092e \u0938\u094d\u0935\u0930\u0942\u092a\u093e\u091a\u0947 \u092a\u094d\u0930\u0915\u0930\u0923<\/h3>\n<ul>\n<li><strong>\u092a\u093f\u0928\u093f\u092f\u0928:<\/strong> 3600 RPM \u0935\u0930\u0940\u0932 18 \u0926\u093e\u0924<\/li>\n<li><strong>\u0917\u093f\u0905\u0930:<\/strong> 54 \u0926\u093e\u0924<\/li>\n<li><strong>GCD(18, 54):<\/strong> 18; LCM(18, 54) = 54<\/li>\n<li><strong>GMF:<\/strong> 18 \u00d7 (3600 \/ 60) = 1080 Hz<\/li>\n<li><strong>HTF = 1080 \/ 54 = 20 Hz<\/strong><\/li>\n<li><strong>\u0928\u092e\u0941\u0928\u093e:<\/strong> only 18 distinct tooth-contact pairs exist, each repeating 20 times per second<\/li>\n<\/ul>\n<h2>3. Hunting \u0935\u093f\u0930\u0941\u0926\u094d\u0927 Non-Hunting Gear Sets<\/h2>\n<h3>Hunting-tooth design (GCD = 1)<\/h3>\n<p>Tooth numbers \u092a\u0930\u0938\u094d\u092a\u0930 prime \u0905\u0938\u0924\u0940\u0932 (\u0938\u093e\u092e\u093e\u0928\u094d\u092f factors \u0928\u0938\u0924\u0940\u0932) \u0924\u0947\u0935\u094d\u0939\u093e \u092e\u093f\u0933\u0924\u0947:<\/p>\n<ul>\n<li><strong>\u0932\u093e\u092d:<\/strong>\n<ul>\n<li>Pinion \u091a\u093e \u092a\u094d\u0930\u0924\u094d\u092f\u0947\u0915 tooth \u0905\u0916\u0947\u0930\u0940\u0938 gear \u091a\u094d\u092f\u093e \u092a\u094d\u0930\u0924\u094d\u092f\u0947\u0915 tooth \u0936\u0940 mesh \u0939\u094b\u0924\u094b.<\/li>\n<li>Wear \u0938\u0930\u094d\u0935 teeth \u0935\u0930 \u0938\u092e\u093e\u0928\u092a\u0923\u0947 \u0935\u093f\u0924\u0930\u093f\u0924 \u0939\u094b\u0924\u094b.<\/li>\n<li>Manufacturing errors \u0935\u093e\u0922\u0935\u0932\u0947 \u091c\u093e\u0924 \u0928\u093e\u0939\u0940\u0924, \u0924\u0930 \u0938\u0930\u093e\u0938\u0930\u0940\u0924 \u0935\u093f\u0930\u0918\u0933\u0924\u093e\u0924.<\/li>\n<li>Gear \u091a\u0947 \u0906\u092f\u0941\u0937\u094d\u092f \u091c\u093e\u0938\u094d\u0924.<\/li>\n<li>\u092c\u0939\u0941\u0924\u0947\u0915 applications \u0938\u093e\u0920\u0940 \u092a\u094d\u0930\u093e\u0927\u093e\u0928\u094d\u092f\u093e\u091a\u093e \u092a\u0930\u094d\u092f\u093e\u092f.<\/li>\n<\/ul>\n<\/li>\n<li><strong>\u0924\u094b\u091f\u0947:<\/strong>\n<ul>\n<li>A defect involving one specific tooth <em>pair<\/em> repeats only at the very low HTF (a small fraction of shaft speed), so long time records are needed to resolve it. A single damaged tooth still impacts once per revolution of its own shaft.<\/li>\n<li>\u092f\u093e\u0938\u093e\u0920\u0940 \u0905\u0927\u093f\u0915 \u0905\u091a\u0942\u0915 manufacturing \u0932\u093e\u0917\u0942 \u0936\u0915\u0924\u0947.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>Non-hunting design (GCD &gt; 1)<\/h3>\n<p>Tooth numbers \u092e\u0927\u094d\u092f\u0947 \u0938\u092e\u093e\u0928 factors \u0905\u0938\u0924\u0940\u0932 \u0924\u0947\u0935\u094d\u0939\u093e \u0939\u094b\u0924\u0947:<\/p>\n<ul>\n<li><strong>\u0932\u093e\u092d:<\/strong>\n<ul>\n<li>Tooth-count \u0928\u093f\u0935\u0921\u0923\u0947 \u0938\u094b\u092a\u0947.<\/li>\n<li>Standard, off-the-shelf gear sizes \u0935\u093e\u092a\u0930\u0924\u093e \u092f\u0947\u090a \u0936\u0915\u0924\u093e\u0924.<\/li>\n<\/ul>\n<\/li>\n<li><strong>\u0924\u094b\u091f\u0947:<\/strong>\n<ul>\n<li>\u0924\u0947\u091a teeth \u0935\u093e\u0930\u0902\u0935\u093e\u0930 mesh \u0939\u094b\u0924\u093e\u0924 (\u092b\u0915\u094d\u0924 GCD \u0907\u0924\u0915\u0940 unique pairs \u0905\u0938\u094d\u0924\u093f\u0924\u094d\u0935\u093e\u0924 \u0905\u0938\u0924\u093e\u0924).<\/li>\n<li>Wear \u0924\u094d\u092f\u093e\u091a tooth pairs \u0935\u0930 \u090f\u0915\u0935\u091f\u0924\u094b.<\/li>\n<li>\u0935\u093f\u0936\u093f\u0937\u094d\u091f teeth \u0935\u0930\u0940\u0932 manufacturing errors \u092a\u094d\u0930\u0924\u094d\u092f\u0947\u0915 cycle \u0932\u093e \u092a\u0941\u0928\u094d\u0939\u093e \u092f\u0947\u0924\u093e\u0924.<\/li>\n<li>\u0938\u093e\u092e\u093e\u0928\u094d\u092f\u0924\u0903 gear \u0906\u092f\u0941\u0937\u094d\u092f \u0915\u092e\u0940.<\/li>\n<li>\u0909\u0924\u094d\u0924\u092e gearbox design \u092e\u0927\u094d\u092f\u0947 \u0938\u093e\u0927\u093e\u0930\u0923 \u091f\u093e\u0933\u0932\u0947 \u091c\u093e\u0924\u0947.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2>4. Vibration Signature<\/h2>\n<h3>HTF in the spectrum and waveform<\/h3>\n<p>HTF rarely appears as a strong standalone peak, and it is usually far too low to be resolved as sideband spacing. Sidebands around the mesh frequency in the <a href=\"https:\/\/vibromera.eu\/mr\/glossary\/spectrum\/\">\u0915\u0902\u092a\u0928 \u0938\u094d\u092a\u0947\u0915\u094d\u091f\u094d\u0930\u092e<\/a> are spaced at the shaft speeds of the two gears; HTF itself shows up as a slow, periodic amplitude modulation (a beat) of the mesh vibration:<\/p>\n<ul>\n<li><strong>\u092e\u0927\u094d\u092f\u0935\u0930\u094d\u0924\u0940 \u0936\u093f\u0916\u0930:<\/strong> GMF (gear mesh frequency) \u092e\u0927\u094d\u092f\u0947.<\/li>\n<li><strong>\u0938\u093e\u0907\u0921\u092c\u0901\u0921\u094d\u0938:<\/strong> GMF \u00b1 1\u00d7, 2\u00d7, 3\u00d7 the shaft speed of the gear carrying a localised defect.<\/li>\n<li><strong>HTF signature:<\/strong> a slow beat in the time waveform \u2014 the overall vibration level swells and fades at the HTF rate (typically a fraction of a hertz to a few hertz).<\/li>\n<li><strong>\u0905\u0930\u094d\u0925 \u0932\u093e\u0935\u0923\u0947:<\/strong> modulation repeating at HTF points to a fault involving a particular tooth <em>pair<\/em>, such as a damaged pinion tooth periodically striking a damaged gear tooth; the modulation depth reflects the severity of the localised defect.<\/li>\n<\/ul>\n<p>\u0939\u0947 sidebands \u0909\u091a\u094d\u091a mesh frequency \u091a\u094d\u092f\u093e \u092d\u094b\u0935\u0924\u0940 cluster \u0939\u094b\u0924\u093e\u0924 \u0906\u0923\u093f \u0926\u093e\u091f \u0905\u0938\u0942 \u0936\u0915\u0924\u093e\u0924, \u092e\u094d\u0939\u0923\u0942\u0928 \u0924\u094d\u092f\u093e\u0902\u0928\u093e \u0909\u0918\u0921 \u0915\u0930\u0923\u094d\u092f\u093e\u0938\u093e\u0920\u0940 \u0926\u094b\u0928 \u0924\u0902\u0924\u094d\u0930\u0947 \u0909\u092a\u092f\u094b\u0917\u0940 \u092a\u0921\u0924\u093e\u0924. <a href=\"https:\/\/vibromera.eu\/mr\/glossary\/cepstrum\/\">\u0938\u0947\u092a\u094d\u0938\u094d\u091f\u094d\u0930\u092e \u0935\u093f\u0936\u094d\u0932\u0947\u0937\u0923<\/a> \u0928\u093f\u092f\u092e\u093f\u0924 spacing \u0905\u0938\u0932\u0947\u0932\u094d\u092f\u093e sideband family \u0932\u093e \u090f\u0915\u093e quefrency line \u092e\u0927\u094d\u092f\u0947 collapse \u0915\u0930\u0924\u0947, \u091c\u094d\u092f\u093e\u092e\u0941\u0933\u0947 spacing \u0938\u0939\u091c \u0935\u093e\u091a\u0924\u093e \u092f\u0947\u0924\u0947, \u0906\u0923\u093f <a href=\"https:\/\/vibromera.eu\/mr\/glossary\/envelope-analysis\/\">\u0932\u093f\u092b\u093e\u092b\u093e \u0935\u093f\u0936\u094d\u0932\u0947\u0937\u0923<\/a> modulated mesh signal \u092e\u0927\u0942\u0928 \u0916\u0930\u093e\u092c tooth \u091a\u093e once-per-revolution impact \u092a\u0930\u0924 \u092e\u093f\u0933\u0935\u0924\u0947.<\/p>\n<h3>\u0928\u093f\u0926\u093e\u0928 \u0928\u092e\u0941\u0928\u0947<\/h3>\n<p><strong>\u090f\u0915\u091a \u0916\u0930\u093e\u092c tooth:<\/strong> strong sidebands around GMF spaced at the shaft speed of the gear carrying the damaged tooth; one impact per revolution of that gear; the <a href=\"https:\/\/vibromera.eu\/mr\/glossary\/time-waveform\/\">time waveform<\/a> \u092e\u0927\u094d\u092f\u0947 \u0938\u094d\u092a\u0937\u094d\u091f periodic impulse \u0926\u093f\u0938\u0924\u094b.<\/p>\n<p><strong>Gear eccentricity:<\/strong> shaft-speed sidebands arising from runout or eccentric mounting; tooth-engagement depth varies once per revolution, amplitude-modulating the GMF; usually correctable by remounting or runout compensation (see <a href=\"https:\/\/vibromera.eu\/mr\/glossary\/eccentricity\/\">\u0935\u093f\u0915\u0947\u0902\u0926\u094d\u0930\u0924\u093e<\/a>).<\/p>\n<p><strong>Damage on both gears (tooth-pair fault):<\/strong> when a damaged pinion tooth periodically meets a damaged gear tooth, the vibration swells and fades at the low HTF rate \u2014 a slow beat superimposed on the mesh vibration; may require gear replacement, or acceptance if it falls within tolerance.<\/p>\n<h2>5. \u0935\u094d\u092f\u093e\u0935\u0939\u093e\u0930\u093f\u0915 \u0928\u093f\u0926\u093e\u0928<\/h2>\n<h3>\u0926\u094b\u0937 \u0905\u0938\u0932\u0947\u0932\u093e gear \u0913\u0933\u0916\u0923\u0947<\/h3>\n<p>\u0915\u094b\u0923\u0924\u094d\u092f\u093e member \u2014 pinion \u0915\u0940 main gear \u2014 \u0935\u0930 \u0926\u094b\u0937 \u0906\u0939\u0947 \u0939\u0947 \u0936\u094b\u0927\u0923\u094d\u092f\u093e\u0938\u093e\u0920\u0940:<\/p>\n<ol>\n<li><strong>\u0926\u094b\u0928\u094d\u0939\u0940 shaft speeds \u092e\u094b\u091c\u093e:<\/strong> input \u0906\u0923\u093f output RPM.<\/li>\n<li><strong>Sideband spacing \u092e\u094b\u091c\u093e<\/strong> vibration spectrum \u092e\u0927\u0942\u0928.<\/li>\n<li><strong>\u091c\u0930 spacing = input shaft frequency \u2192<\/strong> \u0926\u094b\u0937 pinion \u0935\u0930 \u0906\u0939\u0947.<\/li>\n<li><strong>\u091c\u0930 spacing = output shaft frequency \u2192<\/strong> \u0926\u094b\u0937 gear \u0935\u0930 \u0906\u0939\u0947.<\/li>\n<li><strong>\u0928\u093f\u0937\u094d\u0915\u0930\u094d\u0937:<\/strong> sideband spacing \u0915\u094b\u0923\u0924\u093e shaft \u2014 \u0906\u0923\u093f \u092e\u094d\u0939\u0923\u0942\u0928 \u0915\u094b\u0923\u0924\u093e gear \u2014 \u0938\u092e\u0938\u094d\u092f\u093e \u0906\u0939\u0947 \u0924\u0947 \u0913\u0933\u0916\u0924\u0947.<\/li>\n<\/ol>\n<p>\u0939\u0947 \u0905\u0917\u0926\u0940 portable two-channel analyser \u0938\u093e\u0920\u0940 \u092f\u094b\u0917\u094d\u092f \u0905\u0938\u0947 \u092e\u093e\u092a\u0928 \u0906\u0939\u0947. Optical tachometer \u091a\u094d\u092f\u093e \u092e\u0926\u0924\u0940\u0928\u0947 data \u0932\u093e shaft angle \u0936\u0940 lock \u0915\u0930\u0942\u0928 the <a href=\"https:\/\/vibromera.eu\/mr\/product\/balanset-1\/\">Balanset-1A<\/a> gearbox housing \u0935\u0930 spectrum \u0906\u0923\u093f time waveform capture \u0915\u0930\u0924\u094b, \u091c\u094d\u092f\u093e\u092e\u0941\u0933\u0947 \u091c\u094d\u091e\u093e\u0924 input \u0906\u0923\u093f output speeds \u0935\u093f\u0930\u0941\u0926\u094d\u0927 sideband spacing \u092e\u094b\u091c\u0924\u093e \u092f\u0947\u0924\u0947, \u0906\u0923\u093f cracked tooth \u092e\u0941\u0933\u0947 \u092f\u0947\u0923\u093e\u0930\u093e once-per-revolution impulse waveform \u092e\u0927\u094d\u092f\u0947 \u092a\u0941\u0937\u094d\u091f\u0940 \u0915\u0930\u0924\u093e \u092f\u0947\u0924\u094b \u2014 casing \u0928 \u0909\u0918\u0921\u0924\u093e, \u091a\u093e\u0932\u0942 \u092e\u0936\u0940\u0928\u0935\u0930\u091a. A <a href=\"https:\/\/vibromera.eu\/mr\/calculators\/harmonic-frequency-calculator\/\">harmonic frequency calculator<\/a> \u0928\u0902\u0924\u0930 \u092e\u094b\u091c\u0932\u0947\u0932\u093e RPM \u0905\u091a\u0942\u0915 Hz values \u092e\u0927\u094d\u092f\u0947 \u0930\u0942\u092a\u093e\u0902\u0924\u0930\u093f\u0924 \u0915\u0930\u0924\u094b, \u091c\u094d\u092f\u093e\u0902\u091a\u093e \u0936\u094b\u0927 \u0918\u094d\u092f\u093e\u092f\u091a\u093e \u0906\u0939\u0947.<\/p>\n<h3>\u0924\u0940\u0935\u094d\u0930\u0924\u0947\u091a\u0947 \u092e\u0942\u0932\u094d\u092f\u093e\u0902\u0915\u0928<\/h3>\n<ul>\n<li><strong>Sideband amplitude:<\/strong> \u091c\u093e\u0938\u094d\u0924 amplitudes \u0905\u0927\u093f\u0915 \u0924\u0940\u0935\u094d\u0930 \u0938\u094d\u0925\u093e\u0928\u093f\u0915 \u0926\u094b\u0937 \u0926\u0930\u094d\u0936\u0935\u0924\u093e\u0924.<\/li>\n<li><strong>Sidebands \u091a\u0940 \u0938\u0902\u0916\u094d\u092f\u093e:<\/strong> \u0905\u0927\u093f\u0915 sidebands (\u0909\u091a\u094d\u091a orders) \u092e\u094d\u0939\u0923\u091c\u0947 \u0905\u0927\u093f\u0915 \u0916\u0930\u093e\u092c \u0938\u094d\u0925\u093f\u0924\u0940.<\/li>\n<li><strong>\u091f\u093e\u0907\u092e \u0935\u0947\u0935\u094d\u0939\u092b\u0949\u0930\u094d\u092e:<\/strong> \u0938\u094d\u092a\u0937\u094d\u091f periodic impulse \u0939\u093e \u0938\u094d\u0935\u0924\u0902\u0924\u094d\u0930 tooth impact \u091a\u0940 \u092a\u0941\u0937\u094d\u091f\u0940 \u0915\u0930\u0924\u094b.<\/li>\n<li><strong>GMF \u0936\u0940 \u0924\u0941\u0932\u0928\u093e:<\/strong> GMF amplitude \u091a\u094d\u092f\u093e ~25% \u092a\u0947\u0915\u094d\u0937\u093e \u091c\u093e\u0938\u094d\u0924 sidebands \u0939\u0947 \u0932\u0915\u094d\u0937\u0923\u0940\u092f \u0926\u094b\u0937 \u0926\u0930\u094d\u0936\u0935\u0924\u093e\u0924 \u2014 \u0909\u092a\u092f\u0941\u0915\u094d\u0924 <a href=\"https:\/\/vibromera.eu\/mr\/glossary\/defect-severity\/\">\u0926\u094b\u0937-\u0924\u0940\u0935\u094d\u0930\u0924\u093e<\/a> \u092e\u0930\u094d\u092f\u093e\u0926\u093e.<\/li>\n<\/ul>\n<h2>6. Design considerations<\/h2>\n<h3>Tooth numbers \u0928\u093f\u0935\u0921\u0923\u0947<\/h3>\n<ul>\n<li><strong>Prime numbers \u0935\u093e\u092a\u0930\u093e<\/strong> \u091c\u093f\u0925\u0947 \u0936\u0915\u094d\u092f \u0905\u0938\u0947\u0932 \u0924\u093f\u0925\u0947 GCD = 1 (hunting-tooth design) \u0915\u0930\u0923\u094d\u092f\u093e\u0938\u093e\u0920\u0940.<\/li>\n<li><strong>\u0938\u093e\u092e\u093e\u0928\u094d\u092f factors \u091f\u093e\u0933\u093e<\/strong> \u2014 20:60 (GCD = 20) \u0938\u093e\u0930\u0916\u094d\u092f\u093e pairings \u091f\u093e\u0933\u093e.<\/li>\n<li><strong>\u091a\u093e\u0902\u0917\u0932\u0940 \u0909\u0926\u093e\u0939\u0930\u0923 pairs:<\/strong> 17:51, 19:57, 23:69 (\u0938\u0930\u094d\u0935 GCD = 1).<\/li>\n<li><strong>\u0924\u0921\u091c\u094b\u0921:<\/strong> \u092f\u093e \u092c\u0902\u0927\u0928\u093e\u092e\u0941\u0933\u0947 \u0909\u092a\u0932\u092c\u094d\u0927 gear ratios \u0935\u0930 \u0925\u094b\u0921\u0940 \u092e\u0930\u094d\u092f\u093e\u0926\u093e \u092f\u0947\u090a \u0936\u0915\u0924\u0947.<\/li>\n<\/ul>\n<h3>Non-hunting \u0915\u0927\u0940 \u0938\u094d\u0935\u0940\u0915\u093e\u0930\u094d\u092f \u0906\u0939\u0947<\/h3>\n<ul>\n<li>Low-load applications \u091c\u093f\u0925\u0947 wear \u092e\u0939\u0924\u094d\u0924\u094d\u0935\u093e\u091a\u093e \u0928\u093e\u0939\u0940.<\/li>\n<li>\u091c\u093f\u0925\u0947 \u0905\u091a\u0942\u0915 ratio \u092c\u0902\u0927\u0928\u0915\u093e\u0930\u0915 \u0906\u0939\u0947 \u0905\u0936\u093e standard gear sets.<\/li>\n<li>Short-life applications, \u091c\u093f\u0925\u0947 wear distribution \u0915\u092e\u0940 \u092e\u0939\u0924\u094d\u0924\u094d\u0935\u093e\u091a\u0947 \u0905\u0938\u0924\u0947.<\/li>\n<li>\u091c\u093f\u0925\u0947 manufacturing \u092b\u093e\u092f\u0926\u0947 wear penalty \u092a\u0947\u0915\u094d\u0937\u093e \u091c\u093e\u0938\u094d\u0924 \u0905\u0938\u0924\u093e\u0924.<\/li>\n<\/ul>\n<h2>7. \u0907\u0924\u0930 gear frequencies \u0936\u0940 \u0938\u0902\u092c\u0902\u0927<\/h2>\n<h3>Gearbox \u092e\u0927\u0940\u0932 \u0935\u093e\u0930\u0902\u0935\u093e\u0930\u0924\u0947\u091a\u0940 hierarchy<\/h3>\n<ul>\n<li><strong>\u0936\u093e\u092b\u094d\u091f \u0935\u0947\u0917:<\/strong> 1\u00d7 for input and output \u2014 the lowest rotational frequencies.<\/li>\n<li><strong>HTF:<\/strong> normally the lowest frequency of all \u2014 a small fraction of shaft speed in a hunting design (GCD = 1), and never higher than the slower shaft speed even in a non-hunting one.<\/li>\n<li><strong>GMF:<\/strong> teeth \u091a\u0940 \u0938\u0902\u0916\u094d\u092f\u093e \u00d7 shaft speed \u2014 \u0938\u0930\u094d\u0935\u093e\u0924 \u0909\u091a\u094d\u091a primary frequency.<\/li>\n<li><strong>GMF harmonics:<\/strong> 2\u00d7GMF, 3\u00d7GMF \u0935\u0917\u0948\u0930\u0947, mesh non-linearities \u0906\u0923\u093f <a href=\"https:\/\/vibromera.eu\/mr\/glossary\/backlash\/\">\u092c\u0945\u0915\u0932\u0945\u0936<\/a>.<\/li>\n<\/ul>\n<h3>Sideband analysis strategy<\/h3>\n<ul>\n<li>shaft-speed spacing \u0935\u0930\u0940\u0932 sidebands \u2192 eccentric gear \u0915\u093f\u0902\u0935\u093e independent-tooth defect.<\/li>\n<li>Slow amplitude modulation (beating) at the HTF rate \u2192 a repeating tooth-pair issue, such as matched damage on both gears.<\/li>\n<li>\u0938\u094d\u092a\u0937\u094d\u091f sidebands \u0928\u093e\u0939\u0940\u0924 \u2192 \u0938\u0930\u094d\u0935\u0924\u094d\u0930 \u0935\u093f\u0924\u0930\u093f\u0924 <a href=\"https:\/\/vibromera.eu\/mr\/glossary\/gear-wear\/\">\u0917\u093f\u0905\u0930 \u0918\u093e\u0938\u091d\u0940\u091c<\/a>, \u0915\u093f\u0902\u0935\u093e \u092b\u0915\u094d\u0924 \u0928\u093f\u0930\u094b\u0917\u0940 gear.<\/li>\n<\/ul>\n<p>Hunting tooth frequency \u0939\u0940 gear dynamics \u092e\u0927\u0940\u0932 \u0938\u0942\u0915\u094d\u0937\u094d\u092e \u092a\u0923 \u092e\u0939\u0924\u094d\u0924\u094d\u0935\u093e\u091a\u0940 \u092c\u093e\u092c \u0905\u0938\u0932\u0940 \u0924\u0930\u0940 \u0924\u0940 \u0936\u0915\u094d\u0924\u093f\u0936\u093e\u0932\u0940 \u0928\u093f\u0926\u093e\u0928\u093e\u0924\u094d\u092e\u0915 \u092e\u093e\u0939\u093f\u0924\u0940 \u0926\u0947\u0924\u0947. HTF \u091a\u0940 \u0917\u0923\u0928\u093e \u0938\u092e\u091c\u0942\u0928 \u0918\u0947\u0923\u0947 \u0906\u0923\u093f HTF sidebands \u0913\u0933\u0916\u0923\u0947 \u092f\u093e\u092e\u0941\u0933\u0947 \u0935\u093f\u0936\u094d\u0932\u0947\u0937\u0915\u093e\u0932\u093e \u0928\u0947\u092e\u0915\u094d\u092f\u093e \u0915\u094b\u0923\u0924\u094d\u092f\u093e gear \u092e\u0927\u094d\u092f\u0947 \u0926\u094b\u0937 \u0906\u0939\u0947 \u0906\u0923\u093f \u0938\u092e\u0938\u094d\u092f\u093e \u090f\u0915\u093e \u0916\u0930\u093e\u092c tooth \u092a\u0941\u0930\u0924\u0940 \u0906\u0939\u0947 \u0915\u0940 \u0905\u0927\u093f\u0915 \u0935\u093f\u0924\u0930\u093f\u0924 \u0938\u094d\u0925\u093f\u0924\u0940 \u0906\u0939\u0947 \u0939\u0947 \u0913\u0933\u0916\u0924\u093e \u092f\u0947\u0924\u0947 \u2014 \u0906\u0923\u093f \u0924\u094d\u092f\u093e\u092e\u0941\u0933\u0947 gearbox troubleshooting \u092e\u0927\u094d\u092f\u0947 \u0932\u0915\u094d\u0937\u094d\u092f\u093f\u0924 \u0935 \u0906\u0924\u094d\u092e\u0935\u093f\u0936\u094d\u0935\u093e\u0938\u092a\u0942\u0930\u094d\u0923 maintenance \u0928\u093f\u0930\u094d\u0923\u092f \u0918\u0947\u0924\u093e \u092f\u0947\u0924\u093e\u0924.<\/p>\n<hr>\n<p><a href=\"https:\/\/vibromera.eu\/mr\/glossary\/\">\u2190 \u092e\u0941\u0916\u094d\u092f \u0928\u093f\u0930\u094d\u0926\u0947\u0936\u0915\u093e\u0902\u0915\u0921\u0947 \u092a\u0930\u0924<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Learn about hunting tooth frequency, the low-frequency vibration component in gears where the same teeth repeatedly mesh, revealing individual tooth defects and eccentricity.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[114,109],"tags":[],"class_list":["post-139","glossary","type-glossary","status-publish","hentry","category-analysis","category-glossary"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/mr\/wp-json\/wp\/v2\/glossary\/139","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/mr\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/vibromera.eu\/mr\/wp-json\/wp\/v2\/types\/glossary"}],"version-history":[{"count":2,"href":"https:\/\/vibromera.eu\/mr\/wp-json\/wp\/v2\/glossary\/139\/revisions"}],"predecessor-version":[{"id":102037,"href":"https:\/\/vibromera.eu\/mr\/wp-json\/wp\/v2\/glossary\/139\/revisions\/102037"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/mr\/wp-json\/wp\/v2\/media?parent=139"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/mr\/wp-json\/wp\/v2\/categories?post=139"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/mr\/wp-json\/wp\/v2\/tags?post=139"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}