{"id":985,"date":"2025-09-17T16:18:13","date_gmt":"2025-09-17T07:18:13","guid":{"rendered":"https:\/\/www.sungilfa.co.kr\/?page_id=985"},"modified":"2026-01-30T11:43:23","modified_gmt":"2026-01-30T02:43:23","slug":"why-couplings","status":"publish","type":"page","link":"https:\/\/www.sungilfa.co.kr\/en\/products\/coupling\/why-couplings\/","title":{"rendered":"Why Couplings?"},"content":{"rendered":"<p><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-1 fusion-flex-container has-pattern-background has-mask-background fusion-parallax-none subtop prosubtop nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-padding-top:70px;--awb-padding-bottom:30px;--awb-margin-bottom:0px;--awb-min-height:370px;--awb-background-image:url(&quot;http:\/\/www.sungilfa.co.kr\/wp-content\/uploads\/2025\/11\/coupling_bg.jpg&quot;);--awb-background-size:cover;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\" style=\"max-width:1497.6px;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-0 fusion_builder_column_1_1 1_1 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:100%;--awb-margin-top-large:0px;--awb-spacing-right-large:1.92%;--awb-margin-bottom-large:0px;--awb-spacing-left-large:1.92%;--awb-width-medium:100%;--awb-order-medium:0;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\" data-scroll-devices=\"small-visibility,medium-visibility,large-visibility\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-text fusion-text-1\"><div class=\"subtoptitle\">\n<h3>Shaft Coupling<\/h3>\n<div class=\"subbgline\"><img decoding=\"async\" src=\"\/wp-content\/uploads\/2025\/11\/Line-3.png\" \/><\/div>\n<p>Coupling is a core component that transmits power and motion<br \/>\nfrom the driving shaft to the driven part while absorbing misalignment<br \/>\nand any possible factors that could reduce efficiency of machines<br \/>\n(e.g. vibration, noise, electric current, etc.)<\/p>\n<\/div>\n<\/div><\/div><\/div><\/div><\/div><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-2 fusion-flex-container has-pattern-background has-mask-background nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-padding-top:40px;--awb-padding-bottom:70px;--awb-margin-bottom:0px;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\" style=\"max-width:1497.6px;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-1 awb-sticky awb-sticky-small awb-sticky-medium awb-sticky-large fusion_builder_column_1_1 1_1 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:100%;--awb-margin-top-large:0px;--awb-spacing-right-large:1.92%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:1.92%;--awb-width-medium:100%;--awb-order-medium:0;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\" data-scroll-devices=\"small-visibility,medium-visibility,large-visibility\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-text fusion-text-2\"><div class=\"pro_top\">\n<ul>\n<li><a href=\"\/en\/products\/coupling\/why-couplings\">Why Couplings?<\/a><\/li>\n<li><a href=\"\/en\/products\/coupling\/installation-guide\">Installation Guide<\/a><\/li>\n<li><a href=\"\/en\/products\/coupling\/selection-guide\">Selection Guide<\/a><\/li>\n<li><a href=\"\/en\/products\/coupling\/customer-friendly-services\">Customer-friendly Services<\/a><\/li>\n<li><a href=\"\/en\/products\/coupling\/made-to-order-process\">Made-To-Order Process<\/a><\/li>\n<li><a href=\"\/en\/products\/coupling\/varieties-for-special-environments\">Varieties for Special Environments<\/a><\/li>\n<li><a href=\"\/en\/products\/coupling\/balancing-correction\">Balancing Correction<\/a><\/li>\n<li><a href=\"\/en\/technical-data\/engineering-change-notice\/\">Engineering Change Notice<\/a><\/li>\n<\/ul>\n<\/div>\n<\/div><\/div><\/div><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-2 awb-sticky awb-sticky-small awb-sticky-medium awb-sticky-large fusion_builder_column_1_4 1_4 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:25%;--awb-margin-top-large:0px;--awb-spacing-right-large:7.68%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:7.68%;--awb-width-medium:25%;--awb-order-medium:0;--awb-spacing-right-medium:7.68%;--awb-spacing-left-medium:7.68%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;--awb-sticky-offset:200px;\" data-scroll-devices=\"small-visibility,medium-visibility,large-visibility\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-widget-area awb-widget-area-element fusion-widget-area-1 fusion-content-widget-area\" style=\"--awb-title-color:#000000;--awb-padding:0px 0px 0px 0px;\"><style type=\"text\/css\" data-id=\"avada-vertical-menu-widget-5\">#avada-vertical-menu-widget-5 > ul.menu { margin-top: -8px; }<\/style><div id=\"avada-vertical-menu-widget-5\" class=\"widget avada_vertical_menu\" style=\"border-style: solid;border-color:transparent;border-width:0px;\"><style>#fusion-vertical-menu-widget-avada-vertical-menu-widget-5-nav ul.menu li a {font-size:16px;}<\/style><nav id=\"fusion-vertical-menu-widget-avada-vertical-menu-widget-5-nav\" class=\"fusion-vertical-menu-widget fusion-menu hover left no-border\" aria-label=\"Secondary Navigation: \"><ul id=\"menu-coupling\" class=\"menu\"><li id=\"menu-item-982\" class=\"toppromenu menu-item menu-item-type-post_type menu-item-object-page menu-item-982\"><a href=\"https:\/\/www.sungilfa.co.kr\/en\/products\/coupling\/\"><span class=\"link-text\"> Shaft Coupling <span class=\"desc\">(Index)<\/span><\/span><span class=\"arrow\"><\/span><\/a><\/li><li id=\"menu-item-10614\" class=\"greymenu menu-item menu-item-type-custom menu-item-object-custom menu-item-10614\"><a target=\"_blank\" href=\"https:\/\/select.sungilfa.co.kr\/#lang=en&#038;mode=direct\"><span class=\"link-text\"> Configurator<\/span><span class=\"arrow\"><\/span><\/a><\/li><li id=\"menu-item-970\" class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-970\"><a href=\"https:\/\/www.sungilfa.co.kr\/en\/products\/coupling\/shr\/\"><span class=\"link-text\"> SHR Series <span class=\"desc\">(High Performance Rubber)<\/span><\/span><span class=\"arrow\"><\/span><\/a><\/li><li id=\"menu-item-971\" class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-971\"><a href=\"https:\/\/www.sungilfa.co.kr\/en\/products\/coupling\/sd\/\"><span class=\"link-text\"> SD Series <span class=\"desc\">(Disk)<\/span><\/span><span class=\"arrow\"><\/span><\/a><\/li><li id=\"menu-item-972\" class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-972\"><a href=\"https:\/\/www.sungilfa.co.kr\/en\/products\/coupling\/sad\/\"><span class=\"link-text\"> SAD Series <span class=\"desc\">(Advanced Disk)<\/span><\/span><span class=\"arrow\"><\/span><\/a><\/li><li id=\"menu-item-973\" class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-973\"><a href=\"https:\/\/www.sungilfa.co.kr\/en\/products\/coupling\/shd\/\"><span class=\"link-text\"> SHD Series <span class=\"desc\">(High Torque Disk)<\/span><\/span><span class=\"arrow\"><\/span><\/a><\/li><li id=\"menu-item-974\" class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-974\"><a href=\"https:\/\/www.sungilfa.co.kr\/en\/products\/coupling\/scd\/\"><span class=\"link-text\"> SCD Series <span class=\"desc\">(Concentricity Disk)<\/span><\/span><span class=\"arrow\"><\/span><\/a><\/li><li id=\"menu-item-975\" class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-975\"><a href=\"https:\/\/www.sungilfa.co.kr\/en\/products\/coupling\/sjc\/\"><span class=\"link-text\"> SJC Series <span class=\"desc\">(Jaw)<\/span><\/span><span class=\"arrow\"><\/span><\/a><\/li><li id=\"menu-item-976\" class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-976\"><a href=\"https:\/\/www.sungilfa.co.kr\/en\/products\/coupling\/soh\/\"><span class=\"link-text\"> SOH Series <span class=\"desc\">(Oldham)<\/span><\/span><span class=\"arrow\"><\/span><\/a><\/li><li id=\"menu-item-977\" class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-977\"><a href=\"https:\/\/www.sungilfa.co.kr\/en\/products\/coupling\/srb\/\"><span class=\"link-text\"> SRB Series <span class=\"desc\">(Radial Beam)<\/span><\/span><span class=\"arrow\"><\/span><\/a><\/li><li id=\"menu-item-978\" class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-978\"><a href=\"https:\/\/www.sungilfa.co.kr\/en\/products\/coupling\/srg\/\"><span class=\"link-text\"> SRG Series <span class=\"desc\">(Rigid)<\/span><\/span><span class=\"arrow\"><\/span><\/a><\/li><li id=\"menu-item-979\" class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-979\"><a href=\"https:\/\/www.sungilfa.co.kr\/en\/products\/coupling\/scj\/\"><span class=\"link-text\"> SCJ Series <span class=\"desc\">(Cross Joint)<\/span><\/span><span class=\"arrow\"><\/span><\/a><\/li><li id=\"menu-item-980\" class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-980\"><a href=\"https:\/\/www.sungilfa.co.kr\/en\/products\/coupling\/sfc\/\"><span class=\"link-text\"> SFC Series <span class=\"desc\">(Urethane Flexible)<\/span><\/span><span class=\"arrow\"><\/span><\/a><\/li><li id=\"menu-item-981\" class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-981\"><a href=\"https:\/\/www.sungilfa.co.kr\/en\/products\/coupling\/sk\/\"><span class=\"link-text\"> SK Series <span class=\"desc\">(Schmidt)<\/span><\/span><span class=\"arrow\"><\/span><\/a><\/li><li id=\"menu-item-984\" class=\"gobackmenu menu-item menu-item-type-post_type menu-item-object-page menu-item-984\"><a href=\"https:\/\/www.sungilfa.co.kr\/en\/products\/\"><span class=\"link-text\"> Go back to [Main Products]<\/span><span class=\"arrow\"><\/span><\/a><\/li><\/ul><\/nav><\/div><div class=\"fusion-additional-widget-content\"><\/div><\/div><div class=\"custom-select\">\n  <select onchange=\"window.open(value,'_self');\">\n    <option value=\"0\">Select<\/option>\n    <option value=\"\/en\/products\/coupling\/\">Shaft Coupling <span class=\"desc\">(Index)<\/span><\/option>\n    <option value=\"\/en\/products\/coupling\/shr\">SHR Series <span class=\"desc\">(High Performance Rubber)<\/span><\/option>\n    <option value=\"\/en\/products\/coupling\/sd\">SD Series <span class=\"desc\">(Disk)<\/span><\/option>\n    <option value=\"\/en\/products\/coupling\/sad\">SAD Series <span class=\"desc\">(Advanced Disk)<\/span><\/option>\n    <option value=\"\/en\/products\/coupling\/shd\">SHD Series <span class=\"desc\">(High Torque Disk)<\/span><\/option>\n    <option value=\"\/en\/products\/coupling\/scd\">SCD Series <span class=\"desc\">(Concentricity Disk)<\/span><\/option>\n    <option value=\"\/en\/products\/coupling\/sjc\">SJC Series <span class=\"desc\">(Jaw)<\/span><\/option>\n    <option value=\"\/en\/products\/coupling\/soh\">SOH Series <span class=\"desc\">(Oldham)<\/span><\/option>\n    <option value=\"\/en\/products\/coupling\/srb\">SRB Series <span class=\"desc\">(Radial Beam)<\/span><\/option>\n    <option value=\"\/en\/products\/coupling\/srg\">SRG Series <span class=\"desc\">(Rigid)<\/span><\/option>\n    <option value=\"\/en\/products\/coupling\/scj\">SCJ Series <span class=\"desc\">(Cross Joint)<\/span><\/option>\n    <option value=\"\/en\/products\/coupling\/sfc\">SFC Series <span class=\"desc\">(Urethane Flexible)<\/span><\/option>\n  <option value=\"\/en\/products\/coupling\/sk\">SK Series <span class=\"desc\">(Schmidt)<\/span><\/option>\n <option value=\"\/en\/products\">Go back to [Main Products]<\/option>\n  <\/select>\n<\/div>\n<\/div><\/div><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-3 awb-sticky awb-sticky-small awb-sticky-medium awb-sticky-large fusion_builder_column_3_4 3_4 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:75%;--awb-margin-top-large:0px;--awb-spacing-right-large:2.56%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:2.56%;--awb-width-medium:75%;--awb-order-medium:0;--awb-spacing-right-medium:2.56%;--awb-spacing-left-medium:2.56%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\" data-scroll-devices=\"small-visibility,medium-visibility,large-visibility\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-text fusion-text-3\"><div class=\"subtitle\">\n<h3>Why Couplings?<\/h3>\n<\/div>\n<\/div><div class=\"fusion-builder-row fusion-builder-row-inner fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\" style=\"width:104% !important;max-width:104% !important;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column_inner fusion-builder-nested-column-0 fusion_builder_column_inner_2_5 2_5 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:40%;--awb-margin-top-large:0px;--awb-spacing-right-large:4.8%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:4.8%;--awb-width-medium:40%;--awb-order-medium:0;--awb-spacing-right-medium:4.8%;--awb-spacing-left-medium:4.8%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\" data-scroll-devices=\"small-visibility,medium-visibility,large-visibility\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-text fusion-text-4\"><p class=\"whyimg\"><img decoding=\"async\" class=\"alignnone size-full wp-image-1002\" style=\"border: 1px solid #cdcdcd;\" src=\"\/wp-content\/uploads\/2025\/09\/coupling1_img1.jpg\" alt=\"\" width=\"366\" height=\"225\" srcset=\"https:\/\/www.sungilfa.co.kr\/wp-content\/uploads\/2025\/09\/coupling1_img1-200x123.jpg 200w, https:\/\/www.sungilfa.co.kr\/wp-content\/uploads\/2025\/09\/coupling1_img1-300x184.jpg 300w, https:\/\/www.sungilfa.co.kr\/wp-content\/uploads\/2025\/09\/coupling1_img1.jpg 366w\" sizes=\"(max-width: 366px) 100vw, 366px\" \/><\/p>\n<\/div><\/div><\/div><div class=\"fusion-layout-column fusion_builder_column_inner fusion-builder-nested-column-1 fusion_builder_column_inner_3_5 3_5 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:60%;--awb-margin-top-large:0px;--awb-spacing-right-large:3.2%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:3.2%;--awb-width-medium:60%;--awb-order-medium:0;--awb-spacing-right-medium:3.2%;--awb-spacing-left-medium:3.2%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\" data-scroll-devices=\"small-visibility,medium-visibility,large-visibility\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-text fusion-text-5\"><div class=\"whytxt\">\n<h4>1. Power Transmission<\/h4>\n<p>The core role of a coupling is to transmit motion (Torque) from \u201cDriving shaft\u201d to \u201cDriven shaft\u201d\n<\/p>\n<\/div>\n<\/div><\/div><\/div><\/div><div class=\"fusion-builder-row fusion-builder-row-inner fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\" style=\"width:104% !important;max-width:104% !important;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column_inner fusion-builder-nested-column-2 fusion_builder_column_inner_2_5 2_5 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:40%;--awb-margin-top-large:0px;--awb-spacing-right-large:4.8%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:4.8%;--awb-width-medium:40%;--awb-order-medium:0;--awb-spacing-right-medium:4.8%;--awb-spacing-left-medium:4.8%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\" data-scroll-devices=\"small-visibility,medium-visibility,large-visibility\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-text fusion-text-6\"><p class=\"whyimg\"><img decoding=\"async\" class=\"alignnone size-full wp-image-1003\" style=\"border: 1px solid #cdcdcd;\" src=\"\/wp-content\/uploads\/2025\/09\/coupling1_img2.jpg\" alt=\"\" width=\"366\" height=\"148\" srcset=\"https:\/\/www.sungilfa.co.kr\/wp-content\/uploads\/2025\/09\/coupling1_img2-200x81.jpg 200w, https:\/\/www.sungilfa.co.kr\/wp-content\/uploads\/2025\/09\/coupling1_img2-300x121.jpg 300w, https:\/\/www.sungilfa.co.kr\/wp-content\/uploads\/2025\/09\/coupling1_img2.jpg 366w\" sizes=\"(max-width: 366px) 100vw, 366px\" \/><\/p>\n<\/div><\/div><\/div><div class=\"fusion-layout-column fusion_builder_column_inner fusion-builder-nested-column-3 fusion_builder_column_inner_3_5 3_5 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:60%;--awb-margin-top-large:0px;--awb-spacing-right-large:3.2%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:3.2%;--awb-width-medium:60%;--awb-order-medium:0;--awb-spacing-right-medium:3.2%;--awb-spacing-left-medium:3.2%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\" data-scroll-devices=\"small-visibility,medium-visibility,large-visibility\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-text fusion-text-7\"><div class=\"whytxt\">\n<h4>2. Absorption of Misalignment<\/h4>\n<p>Due to such mechanical tolerance, precision grade and proficiency, misalignment occurs between driving and driven parts most of the cases. This misalignment is classified as angular, parallel and end-play way and it brings excessive load onto mechanical parts which is quite sensitive to vibration and noise. Sung-il couplings (except Rigid type- SRG series) can absorb this type of misalignment. Please refer to \u201cDimensions \/ Performance\u201d pages for more details by each coupling types.<\/p>\n<\/div>\n<\/div><\/div><\/div><\/div><div class=\"fusion-builder-row fusion-builder-row-inner fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\" style=\"width:104% !important;max-width:104% !important;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column_inner fusion-builder-nested-column-4 fusion_builder_column_inner_2_5 2_5 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:40%;--awb-margin-top-large:0px;--awb-spacing-right-large:4.8%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:4.8%;--awb-width-medium:40%;--awb-order-medium:0;--awb-spacing-right-medium:4.8%;--awb-spacing-left-medium:4.8%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\" data-scroll-devices=\"small-visibility,medium-visibility,large-visibility\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-text fusion-text-8\"><p class=\"whyimg\"><img decoding=\"async\" src=\"\/wp-content\/uploads\/2025\/09\/coupling1_img3.jpg\" alt=\"\" width=\"366\" height=\"149\" class=\"alignnone size-full wp-image-1004\" srcset=\"https:\/\/www.sungilfa.co.kr\/wp-content\/uploads\/2025\/09\/coupling1_img3-200x81.jpg 200w, https:\/\/www.sungilfa.co.kr\/wp-content\/uploads\/2025\/09\/coupling1_img3-300x122.jpg 300w, https:\/\/www.sungilfa.co.kr\/wp-content\/uploads\/2025\/09\/coupling1_img3.jpg 366w\" sizes=\"(max-width: 366px) 100vw, 366px\" \/><\/p>\n<\/div><\/div><\/div><div class=\"fusion-layout-column fusion_builder_column_inner fusion-builder-nested-column-5 fusion_builder_column_inner_3_5 3_5 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:60%;--awb-margin-top-large:0px;--awb-spacing-right-large:3.2%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:3.2%;--awb-width-medium:60%;--awb-order-medium:0;--awb-spacing-right-medium:3.2%;--awb-spacing-left-medium:3.2%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\" data-scroll-devices=\"small-visibility,medium-visibility,large-visibility\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-text fusion-text-9\"><div class=\"whytxt\">\n<h4>3. Absorption of Impact\/Vibration\/Noise<\/h4>\n<p>Sometimes, there is either vibration or impact on the application e.g. motor, reducer or ball screw. If they are passed onto the application directly, the entire application including expensive devices will need repairing.<br \/>\nSung-il Couplings (except Rigid type \u2013SRG series) absorb these kinds of external factors in an effective way. Particularly the models with plastic material spacer between hubs (SHR, SJC, SOH series etc.) perform better in terms of this function.<\/p>\n<\/div>\n<\/div><\/div><\/div><\/div><div class=\"fusion-builder-row fusion-builder-row-inner fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\" style=\"width:104% !important;max-width:104% !important;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column_inner fusion-builder-nested-column-6 fusion_builder_column_inner_2_5 2_5 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:40%;--awb-margin-top-large:0px;--awb-spacing-right-large:4.8%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:4.8%;--awb-width-medium:40%;--awb-order-medium:0;--awb-spacing-right-medium:4.8%;--awb-spacing-left-medium:4.8%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\" data-scroll-devices=\"small-visibility,medium-visibility,large-visibility\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-text fusion-text-10\"><p class=\"whyimg\"><img decoding=\"async\" src=\"\/wp-content\/uploads\/2025\/09\/coupling1_img4.jpg\" alt=\"\" width=\"366\" height=\"148\" class=\"alignnone size-full wp-image-1005\" srcset=\"https:\/\/www.sungilfa.co.kr\/wp-content\/uploads\/2025\/09\/coupling1_img4-200x81.jpg 200w, https:\/\/www.sungilfa.co.kr\/wp-content\/uploads\/2025\/09\/coupling1_img4-300x121.jpg 300w, https:\/\/www.sungilfa.co.kr\/wp-content\/uploads\/2025\/09\/coupling1_img4.jpg 366w\" sizes=\"(max-width: 366px) 100vw, 366px\" \/><\/p>\n<\/div><\/div><\/div><div class=\"fusion-layout-column fusion_builder_column_inner fusion-builder-nested-column-7 fusion_builder_column_inner_3_5 3_5 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:60%;--awb-margin-top-large:0px;--awb-spacing-right-large:3.2%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:3.2%;--awb-width-medium:60%;--awb-order-medium:0;--awb-spacing-right-medium:3.2%;--awb-spacing-left-medium:3.2%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\" data-scroll-devices=\"small-visibility,medium-visibility,large-visibility\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-text fusion-text-11\"><div class=\"whytxt\">\n<h4>4. Insulation of Heat and Electric current<\/h4>\n<p>If a motor is used for a long time, heat and electric current may get occurred. If the heat is also transmitted to the driven part, there is possibility of expansion of connected parts which will reduce the precision of application. Sung-il Couplings can protect the application and keep its performance stable in an effective way through insulating heat and electric current.<\/p>\n<\/div>\n<\/div><\/div><\/div><\/div><div class=\"fusion-builder-row fusion-builder-row-inner fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\" style=\"width:104% !important;max-width:104% !important;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column_inner fusion-builder-nested-column-8 fusion_builder_column_inner_2_5 2_5 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:40%;--awb-margin-top-large:0px;--awb-spacing-right-large:4.8%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:4.8%;--awb-width-medium:40%;--awb-order-medium:0;--awb-spacing-right-medium:4.8%;--awb-spacing-left-medium:4.8%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\" data-scroll-devices=\"small-visibility,medium-visibility,large-visibility\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-text fusion-text-12\"><p class=\"whyimg\"><img decoding=\"async\" src=\"\/wp-content\/uploads\/2025\/09\/coupling1_img5.jpg\" alt=\"\" width=\"366\" height=\"148\" class=\"alignnone size-full wp-image-1001\" srcset=\"https:\/\/www.sungilfa.co.kr\/wp-content\/uploads\/2025\/09\/coupling1_img5-200x81.jpg 200w, https:\/\/www.sungilfa.co.kr\/wp-content\/uploads\/2025\/09\/coupling1_img5-300x121.jpg 300w, https:\/\/www.sungilfa.co.kr\/wp-content\/uploads\/2025\/09\/coupling1_img5.jpg 366w\" sizes=\"(max-width: 366px) 100vw, 366px\" \/><\/p>\n<\/div><\/div><\/div><div class=\"fusion-layout-column fusion_builder_column_inner fusion-builder-nested-column-9 fusion_builder_column_inner_3_5 3_5 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:60%;--awb-margin-top-large:0px;--awb-spacing-right-large:3.2%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:3.2%;--awb-width-medium:60%;--awb-order-medium:0;--awb-spacing-right-medium:3.2%;--awb-spacing-left-medium:3.2%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\" data-scroll-devices=\"small-visibility,medium-visibility,large-visibility\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-text fusion-text-13\"><div class=\"whytxt\">\n<h4>5. Performance Improvement<\/h4>\n<p>With SHR series (High performance Rubber type), the gain value on the motor could be set higher thanks to superior damping decrease. This feature allows the stabilization time to be reduced and make whole efficiency higher.<\/p>\n<\/div>\n<\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/p>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":2,"featured_media":0,"parent":917,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"100-width.php","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-985","page","type-page","status-publish","hentry"],"acf":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.sungilfa.co.kr\/en\/wp-json\/wp\/v2\/pages\/985","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.sungilfa.co.kr\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.sungilfa.co.kr\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.sungilfa.co.kr\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.sungilfa.co.kr\/en\/wp-json\/wp\/v2\/comments?post=985"}],"version-history":[{"count":12,"href":"https:\/\/www.sungilfa.co.kr\/en\/wp-json\/wp\/v2\/pages\/985\/revisions"}],"predecessor-version":[{"id":9323,"href":"https:\/\/www.sungilfa.co.kr\/en\/wp-json\/wp\/v2\/pages\/985\/revisions\/9323"}],"up":[{"embeddable":true,"href":"https:\/\/www.sungilfa.co.kr\/en\/wp-json\/wp\/v2\/pages\/917"}],"wp:attachment":[{"href":"https:\/\/www.sungilfa.co.kr\/en\/wp-json\/wp\/v2\/media?parent=985"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}