{"id":100016,"date":"2026-02-15T20:06:11","date_gmt":"2026-02-15T20:06:11","guid":{"rendered":"https:\/\/vibromera.eu\/?post_type=calculator&#038;p=100016"},"modified":"2026-02-15T20:06:11","modified_gmt":"2026-02-15T20:06:11","slug":"bearing-equivalent-load","status":"publish","type":"calculator","link":"https:\/\/vibromera.eu\/bn\/calculators\/bearing-equivalent-load\/","title":{"rendered":"Bearing Equivalent Dynamic Load Calculator | P = X\u00b7Fr + Y\u00b7Fa | Free Online Tool"},"content":{"rendered":"\n<script type=\"application\/ld+json\">\n{\"@context\":\"https:\/\/schema.org\",\"@type\":\"WebApplication\",\"name\":\"Bearing Equivalent Dynamic Load Calculator\",\"alternateName\":[\"P = XFr + YFa Calculator\",\"Bearing Load Calculator\"],\"description\":\"Free online calculator for bearing equivalent dynamic load P = X\u00b7Fr + Y\u00b7Fa with automatic X,Y factor selection based on bearing type and Fa\/Fr ratio.\",\"url\":\"https:\/\/vibromera.eu\/calculators\/bearing-equivalent-load\/\",\"applicationCategory\":\"Engineering Calculator\",\"operatingSystem\":\"Any (Web Browser)\",\"offers\":{\"@type\":\"Offer\",\"price\":\"0\",\"priceCurrency\":\"EUR\"},\"creator\":{\"@type\":\"Organization\",\"name\":\"Vibromera\",\"url\":\"https:\/\/vibromera.eu\/\"},\"datePublished\":\"2025-01-01\",\"dateModified\":\"2026-02-15\",\"inLanguage\":\"en\",\"isAccessibleForFree\":true,\"featureList\":[\"Multiple bearing type support\",\"Automatic X,Y factor selection\",\"e-value threshold check\",\"Fa\/Fr ratio display\",\"Auto-calculation on input change\"],\"keywords\":\"equivalent dynamic load, bearing load, X Y factors, Fa\/Fr ratio\"}\n<\/script>\n\n<script type=\"application\/ld+json\">\n{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[\n{\"@type\":\"Question\",\"name\":\"What is the bearing equivalent dynamic load P?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The equivalent dynamic load P is a hypothetical constant radial load that would give the same bearing life as the actual combined radial and axial loads. It is calculated as P = X\u00b7Fr + Y\u00b7Fa, where X and Y are load factors depending on the bearing type and load ratio.\"}},\n{\"@type\":\"Question\",\"name\":\"What are the X and Y factors?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"X is the radial load factor and Y is the axial load factor. They depend on the bearing type and the ratio Fa\/Fr relative to the e-value. When Fa\/Fr \u2264 e, the axial load has negligible effect (X=1, Y=0). When Fa\/Fr > e, both X and Y apply.\"}},\n{\"@type\":\"Question\",\"name\":\"What is the e-value in bearing calculations?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The e-value is a threshold ratio specific to each bearing type. It determines whether the axial load significantly affects bearing life. When Fa\/Fr exceeds e, the Y factor must be applied to account for the axial load contribution.\"}},\n{\"@type\":\"Question\",\"name\":\"How do I handle pure radial load?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"For pure radial load (Fa = 0), the equivalent load simplifies to P = Fr. No axial factor applies, and you can use the radial load directly in the L10 life calculation.\"}},\n{\"@type\":\"Question\",\"name\":\"Can I use this for static equivalent load P0?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"This calculator computes the dynamic equivalent load P for life calculations. For static equivalent load P0, the formula is similar but uses different X0 and Y0 factors. Use the Bearing Static Safety Factor calculator for P0 assessment.\"}}\n]}\n<\/script>\n\n<script type=\"application\/ld+json\">\n{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[\n{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/vibromera.eu\/\"},\n{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Calculators\",\"item\":\"https:\/\/vibromera.eu\/calculators\/\"},\n{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Bearing Equivalent Load\",\"item\":\"https:\/\/vibromera.eu\/calculators\/bearing-equivalent-load\/\"}\n]}\n<\/script>\n\n<link rel=\"preconnect\" href=\"https:\/\/fonts.googleapis.com\">\n\n<link rel=\"preconnect\" href=\"https:\/\/fonts.gstatic.com\" crossorigin>\n\n<link 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16px;font-size:13px;color:var(--vc-ink-muted)}.vc-footer a{color:var(--vc-accent);text-decoration:none}.vc-footer a:hover{text-decoration:underline}.vc-footer-links{margin-top:8px;font-size:12px}.vc-footer-links a{margin:0 8px}\n@media print{.vc-section-body{max-height:none!important}.vc-faq-a{max-height:none!important}.vc-results{max-height:none!important;padding:24px!important}.vc-copy-btn,.vc-section-chevron,.vc-faq-chevron,.vc-presets,.vc-promo{display:none!important}}\n<\/style>\n\n<div class=\"vc-calculator\" id=\"vc-equiv-load\">\n\n<header class=\"vc-header\">\n    <p class=\"vc-header-eyebrow\">Free Engineering Tool #046<\/p>\n    <h1 class=\"vc-header-title\">Bearing Equivalent Dynamic Load Calculator<\/h1>\n    <p class=\"vc-header-subtitle\">Calculate the equivalent dynamic bearing load P = X\u00b7F<sub>r<\/sub> + Y\u00b7F<sub>a<\/sub>. Automatically selects X,Y factors based on bearing type and F<sub>a<\/sub>\/F<sub>r<\/sub> ratio vs. e-value.<\/p>\n    <div class=\"vc-badges\">\n        <span class=\"vc-badge\">P = X\u00b7Fr + Y\u00b7Fa<\/span>\n        <span class=\"vc-badge\">e-Value Check<\/span>\n        <span class=\"vc-badge\">Auto X,Y Selection<\/span>\n    <\/div>\n<\/header>\n\n<div class=\"vc-card\">\n    <form class=\"vc-form\" id=\"vc-form\" autocomplete=\"off\">\n        <div class=\"vc-form-grid\">\n            <div class=\"vc-field\">\n                <label class=\"vc-label\" for=\"vc-Fr\">Radial Load F<sub>r<\/sub> <span class=\"vc-label-hint\">(kN)<\/span><\/label>\n                <input class=\"vc-input\" type=\"number\" id=\"vc-Fr\" inputmode=\"decimal\" step=\"any\" min=\"0\" placeholder=\"e.g. 8\" value=\"8\">\n            <\/div>\n            <div class=\"vc-field\">\n                <label class=\"vc-label\" for=\"vc-Fa\">Axial Load F<sub>a<\/sub> <span class=\"vc-label-hint\">(kN)<\/span><\/label>\n                <input class=\"vc-input\" type=\"number\" id=\"vc-Fa\" inputmode=\"decimal\" step=\"any\" min=\"0\" placeholder=\"e.g. 3\" value=\"3\">\n            <\/div>\n            <div class=\"vc-field vc-field-full\">\n                <label class=\"vc-label\" for=\"vc-btype\">Bearing Type<\/label>\n                <select class=\"vc-select\" id=\"vc-btype\">\n                    <option value=\"dgbb\" selected>Deep groove ball bearing (62xx, 63xx)<\/option>\n                    <option value=\"acbb15\">Angular contact ball bearing (\u03b1 = 15\u00b0)<\/option>\n                    <option value=\"acbb25\">Angular contact ball bearing (\u03b1 = 25\u00b0)<\/option>\n                    <option value=\"acbb40\">Angular contact ball bearing (\u03b1 = 40\u00b0)<\/option>\n                    <option value=\"srbb\">Self-aligning ball bearing<\/option>\n                    <option value=\"crb\">Cylindrical roller bearing (pure radial)<\/option>\n                    <option value=\"trb\">Tapered roller bearing<\/option>\n                    <option value=\"srb\">Spherical roller bearing<\/option>\n                <\/select>\n            <\/div>\n        <\/div>\n\n        <div class=\"vc-presets\">\n            <div class=\"vc-presets-label\">Quick presets<\/div>\n            <button type=\"button\" class=\"vc-preset-btn\" data-fr=\"8\" data-fa=\"3\" data-bt=\"dgbb\">DGBB \/ Fr=8 Fa=3 kN<\/button>\n            <button type=\"button\" class=\"vc-preset-btn\" data-fr=\"15\" data-fa=\"10\" data-bt=\"acbb25\">ACBB 25\u00b0 \/ Fr=15 Fa=10<\/button>\n            <button type=\"button\" class=\"vc-preset-btn\" data-fr=\"20\" data-fa=\"0\" data-bt=\"crb\">CRB \/ Pure radial 20 kN<\/button>\n            <button type=\"button\" class=\"vc-preset-btn\" data-fr=\"25\" data-fa=\"12\" data-bt=\"trb\">TRB \/ Fr=25 Fa=12 kN<\/button>\n        <\/div>\n    <\/form>\n\n    <div class=\"vc-results\" id=\"vc-results\">\n        <div class=\"vc-results-head\">\n            <h2 class=\"vc-results-title\">Results<\/h2>\n            <button type=\"button\" class=\"vc-copy-btn\" id=\"vc-copy-btn\">\n                <svg width=\"14\" height=\"14\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"><rect x=\"9\" y=\"9\" width=\"13\" height=\"13\" rx=\"2\"\/><path d=\"M5 15H4a2 2 0 01-2-2V4a2 2 0 012-2h9a2 2 0 012 2v1\"\/><\/svg>\n                Copy\n            <\/button>\n        <\/div>\n        <div class=\"vc-result-grid\">\n            <div class=\"vc-rcard vc-rcard-primary\">\n                <div class=\"vc-rcard-label\">Equivalent Dynamic Load P<\/div>\n                <div class=\"vc-rcard-value\" id=\"vc-r-P\">\u2014<\/div>\n            <\/div>\n            <div class=\"vc-rcard\">\n                <div class=\"vc-rcard-label\">Fa\/Fr Ratio<\/div>\n                <div class=\"vc-rcard-value\" id=\"vc-r-ratio\">\u2014<\/div>\n            <\/div>\n            <div class=\"vc-rcard\">\n                <div class=\"vc-rcard-label\">e-Value Threshold<\/div>\n                <div class=\"vc-rcard-value\" id=\"vc-r-e\">\u2014<\/div>\n            <\/div>\n            <div class=\"vc-rcard\">\n                <div class=\"vc-rcard-label\">Factors Used (X, Y)<\/div>\n                <div class=\"vc-rcard-value\" id=\"vc-r-xy\">\u2014<\/div>\n            <\/div>\n            <div class=\"vc-rcard\">\n                <div class=\"vc-rcard-label\">Load Condition<\/div>\n                <div class=\"vc-rcard-value\" id=\"vc-r-cond\">\u2014<\/div>\n            <\/div>\n        <\/div>\n    <\/div>\n<\/div>\n\n<!-- Theory -->\n<div class=\"vc-section vc-open\" id=\"vc-sec-theory\">\n    <button type=\"button\" class=\"vc-section-toggle\" aria-expanded=\"true\">\n        <span class=\"vc-section-toggle-text\"><span class=\"vc-section-icon\">\ud83d\udcd8<\/span><span class=\"vc-section-title\">Theory &amp; Formulas<\/span><\/span>\n        <svg class=\"vc-section-chevron\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"><path d=\"M6 9l6 6 6-6\"\/><\/svg>\n    <\/button>\n    <div class=\"vc-section-body\">\n        <div class=\"vc-section-inner vc-theory\">\n            <h3>Equivalent Dynamic Load<\/h3>\n            <p>The equivalent dynamic bearing load combines radial and axial forces into a single value:<\/p>\n            <div class=\"vc-formula-box\" id=\"vc-katex-1\"><\/div>\n            <p>The condition is: if F<sub>a<\/sub>\/F<sub>r<\/sub> \u2264 e, then P = F<sub>r<\/sub>. If F<sub>a<\/sub>\/F<sub>r<\/sub> > e, then P = X\u00b7F<sub>r<\/sub> + Y\u00b7F<sub>a<\/sub>.<\/p>\n\n            <h3>X, Y and e Factors by Bearing Type<\/h3>\n            <table class=\"vc-table\">\n                <thead><tr><th>Bearing Type<\/th><th>e<\/th><th>X (Fa\/Fr \u2264 e)<\/th><th>Y (Fa\/Fr \u2264 e)<\/th><th>X (Fa\/Fr > e)<\/th><th>Y (Fa\/Fr > e)<\/th><\/tr><\/thead>\n                <tbody>\n                    <tr><td>Deep groove ball (DGBB)<\/td><td>0.19<\/td><td>1<\/td><td>0<\/td><td>0.56<\/td><td>2.30<\/td><\/tr>\n                    <tr><td>Angular contact 15\u00b0<\/td><td>0.38<\/td><td>1<\/td><td>0<\/td><td>0.44<\/td><td>1.47<\/td><\/tr>\n                    <tr><td>Angular contact 25\u00b0<\/td><td>0.68<\/td><td>1<\/td><td>0<\/td><td>0.41<\/td><td>0.87<\/td><\/tr>\n                    <tr><td>Angular contact 40\u00b0<\/td><td>1.14<\/td><td>1<\/td><td>0<\/td><td>0.35<\/td><td>0.57<\/td><\/tr>\n                    <tr><td>Self-aligning ball<\/td><td>0.40<\/td><td>1<\/td><td>0<\/td><td>0.65<\/td><td>1.71<\/td><\/tr>\n                    <tr><td>Cylindrical roller<\/td><td>\u2014<\/td><td>1<\/td><td>0<\/td><td>\u2014<\/td><td>\u2014<\/td><\/tr>\n                    <tr><td>Tapered roller<\/td><td>0.37<\/td><td>1<\/td><td>0<\/td><td>0.40<\/td><td>1.60<\/td><\/tr>\n                    <tr><td>Spherical roller<\/td><td>0.27<\/td><td>1<\/td><td>0<\/td><td>0.67<\/td><td>2.35<\/td><\/tr>\n                <\/tbody>\n            <\/table>\n\n            <div class=\"vc-info-box\">\n                <p><strong>\u2139\ufe0f Note:<\/strong> The values above are simplified typical values. Exact X, Y, and e values depend on the specific bearing series and the ratio C<sub>0<\/sub>\/F<sub>a<\/sub>. Consult manufacturer catalogs for precise values.<\/p>\n            <\/div>\n\n            <h3>Practical Example<\/h3>\n            <div class=\"vc-example-box\">\n                <div class=\"vc-example-title\">Example \u2014 Deep Groove Ball Bearing 6208<\/div>\n                <p><strong>Given:<\/strong> F<sub>r<\/sub> = 8 kN, F<sub>a<\/sub> = 3 kN<\/p>\n                <p>F<sub>a<\/sub>\/F<sub>r<\/sub> = 3\/8 = 0.375 > e = 0.19 \u2192 axial load is significant<\/p>\n                <p>P = 0.56 \u00d7 8 + 2.30 \u00d7 3 = 4.48 + 6.90 = <strong>11.38 kN<\/strong><\/p>\n            <\/div>\n        <\/div>\n    <\/div>\n<\/div>\n\n<!-- Related -->\n<div class=\"vc-section\" id=\"vc-sec-related\">\n    <button type=\"button\" class=\"vc-section-toggle\" aria-expanded=\"false\">\n        <span class=\"vc-section-toggle-text\"><span class=\"vc-section-icon\">\ud83d\udd17<\/span><span class=\"vc-section-title\">Related Calculators<\/span><\/span>\n        <svg class=\"vc-section-chevron\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"><path d=\"M6 9l6 6 6-6\"\/><\/svg>\n    <\/button>\n    <div class=\"vc-section-body\">\n        <div class=\"vc-section-inner\"><div class=\"vc-related\">\n            <a class=\"vc-related-link\" href=\"\/calculators\/bearing-modified-life-l10a\/\">Bearing Modified Life L10a<\/a>\n            <a class=\"vc-related-link\" href=\"\/calculators\/bearing-static-load-rating\/\">Bearing Static Safety Factor<\/a>\n            <a class=\"vc-related-link\" href=\"\/calculators\/bearing-minimum-load\/\">Bearing Minimum Load<\/a>\n            <a class=\"vc-related-link\" href=\"\/calculators\/bearing-speed-factor\/\">Bearing Speed Factor n\u00d7dm<\/a>\n        <\/div><\/div>\n    <\/div>\n<\/div>\n\n<!-- FAQ -->\n<div class=\"vc-section\" id=\"vc-sec-faq\">\n    <button type=\"button\" class=\"vc-section-toggle\" aria-expanded=\"false\">\n        <span class=\"vc-section-toggle-text\"><span class=\"vc-section-icon\">\u2753<\/span><span class=\"vc-section-title\">Frequently Asked Questions<\/span><\/span>\n        <svg class=\"vc-section-chevron\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"><path d=\"M6 9l6 6 6-6\"\/><\/svg>\n    <\/button>\n    <div class=\"vc-section-body\"><div class=\"vc-section-inner\"><div class=\"vc-faq-list\" id=\"vc-faq-list\"><\/div><\/div><\/div>\n<\/div>\n\n<div class=\"vc-promo\">\n    <div class=\"vc-promo-text\"><strong>Vibromera \u2014 Portable Balancing &amp; Vibration Analysis<\/strong><br>Professional field balancing instruments and vibration analyzers. Used in 50+ countries.<\/div>\n    <a class=\"vc-promo-link\" href=\"https:\/\/vibromera.eu\/\" target=\"_blank\" rel=\"noopener\">Learn More<\/a>\n<\/div>\n\n<footer class=\"vc-footer\">\n    <p>\u00a9 2024\u20132026 <a href=\"https:\/\/vibromera.eu\/\">Vibromera<\/a> \u2014 Engineering Calculators<\/p>\n    <p style=\"font-size:12px;margin-top:4px;\">Calculator #046. Last updated: February 2026<\/p>\n    <div class=\"vc-footer-links\"><a href=\"\/calculators\/engineering-calculators\/\">All Calculators<\/a><a href=\"https:\/\/vibromera.eu\/contacts\/\">Contact<\/a><\/div>\n<\/footer>\n\n<\/div>\n\n<script src=\"https:\/\/cdn.jsdelivr.net\/npm\/katex@0.16.11\/dist\/katex.min.js\"><\/script>\n<script>\n(function(){\n    'use strict';\n    var SLUG='bearing-equivalent-load';\n    function $(id){return document.getElementById(id)}\n    function fmt(n,d){if(isNaN(n)||!isFinite(n))return'\u2014';var f=n.toFixed(d===undefined?2:d);return f.replace(\/(\\.\\d*?)0+$\/,'$1').replace(\/\\.$\/,'')}\n\n    \/* Bearing type data: {e, X1, Y1, X2, Y2} \u2014 1=Fa\/Fr<=e, 2=Fa\/Fr>e *\/\n    var TYPES={\n        dgbb:{e:0.19,X1:1,Y1:0,X2:0.56,Y2:2.30,name:'Deep groove ball bearing'},\n        acbb15:{e:0.38,X1:1,Y1:0,X2:0.44,Y2:1.47,name:'Angular contact 15\u00b0'},\n        acbb25:{e:0.68,X1:1,Y1:0,X2:0.41,Y2:0.87,name:'Angular contact 25\u00b0'},\n        acbb40:{e:1.14,X1:1,Y1:0,X2:0.35,Y2:0.57,name:'Angular contact 40\u00b0'},\n        srbb:{e:0.40,X1:1,Y1:0,X2:0.65,Y2:1.71,name:'Self-aligning ball bearing'},\n        crb:{e:9999,X1:1,Y1:0,X2:1,Y2:0,name:'Cylindrical roller bearing'},\n        trb:{e:0.37,X1:1,Y1:0,X2:0.40,Y2:1.60,name:'Tapered roller bearing'},\n        srb:{e:0.27,X1:1,Y1:0,X2:0.67,Y2:2.35,name:'Spherical roller bearing'}\n    };\n\n    function calculate(){\n        var Fr=parseFloat($('vc-Fr').value)||0;\n        var Fa=parseFloat($('vc-Fa').value)||0;\n        var bt=$('vc-btype').value;\n        if(Fr<=0&&Fa<=0){$('vc-results').classList.remove('vc-visible');return;}\n        var t=TYPES[bt];\n        var ratio=Fr>0?Fa\/Fr:9999;\n        var X,Y,cond;\n        if(ratio<=t.e){X=t.X1;Y=t.Y1;cond='Fa\/Fr \u2264 e \u2192 axial negligible';}\n        else{X=t.X2;Y=t.Y2;cond='Fa\/Fr > e \u2192 axial significant';}\n        var P=X*Fr+Y*Fa;\n        if(P<Fr)P=Fr; \/\/ P cannot be less than Fr\n\n        $('vc-r-P').innerHTML=fmt(P,2)+' <span class=\"vc-rcard-unit\">kN<\/span>';\n        $('vc-r-ratio').innerHTML=Fr>0?fmt(ratio,3):'\u221e (pure axial)';\n        $('vc-r-e').innerHTML=t.e<9000?fmt(t.e,2):'N\/A (radial only)';\n        $('vc-r-xy').innerHTML='X = '+fmt(X,2)+', Y = '+fmt(Y,2);\n        $('vc-r-cond').innerHTML='<span style=\"font-size:14px\">'+cond+'<\/span>';\n        $('vc-results').classList.add('vc-visible');\n\n        var u=new URL(window.location);u.searchParams.set('Fr',Fr);u.searchParams.set('Fa',Fa);u.searchParams.set('btype',bt);history.replaceState(null,'',u.toString());\n        saveHistory({Fr:Fr,Fa:Fa,bt:bt,_summary:'Fr='+Fr+' Fa='+Fa+' kN \u2192 P='+fmt(P,2)+' kN'});\n    }\n\n    document.querySelectorAll('.vc-preset-btn').forEach(function(btn){btn.addEventListener('click',function(e){e.preventDefault();$('vc-Fr').value=this.getAttribute('data-fr');$('vc-Fa').value=this.getAttribute('data-fa');$('vc-btype').value=this.getAttribute('data-bt');calculate();});});\n    $('vc-form').addEventListener('input',calculate);\n    $('vc-form').addEventListener('change',calculate);\n\n    $('vc-copy-btn').addEventListener('click',function(){\n        var text='Bearing Equivalent Load\\n\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\\nFr = '+$('vc-Fr').value+' kN\\nFa = '+$('vc-Fa').value+' kN\\nType: '+$('vc-btype').selectedOptions[0].text+'\\nP = '+$('vc-r-P').textContent+'\\nFactors: '+$('vc-r-xy').textContent+'\\n\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\\nvibromera.eu';\n        if(navigator.clipboard){navigator.clipboard.writeText(text).then(function(){var b=$('vc-copy-btn');b.classList.add('vc-copied');b.innerHTML='<svg width=\"14\" height=\"14\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"><polyline points=\"20 6 9 17 4 12\"\/><\/svg> Copied!';setTimeout(function(){b.classList.remove('vc-copied');b.innerHTML='<svg width=\"14\" height=\"14\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"><rect x=\"9\" y=\"9\" width=\"13\" height=\"13\" rx=\"2\"\/><path d=\"M5 15H4a2 2 0 01-2-2V4a2 2 0 012-2h9a2 2 0 012 2v1\"\/><\/svg> Copy';},2000);});}\n    });\n\n    document.querySelectorAll('.vc-section-toggle').forEach(function(btn){btn.addEventListener('click',function(){var s=this.closest('.vc-section');s.classList.toggle('vc-open');this.setAttribute('aria-expanded',s.classList.contains('vc-open'));});});\n\n    var faqData=[\n        {q:'What is the bearing equivalent dynamic load P?',a:'<p>The equivalent dynamic load P is a hypothetical constant radial load that would give the same bearing life as the actual combined radial and axial loads. It is calculated as P = X\u00b7F<sub>r<\/sub> + Y\u00b7F<sub>a<\/sub>.<\/p>'},\n        {q:'What are the X and Y factors?',a:'<p>X is the radial load factor and Y is the axial load factor. When F<sub>a<\/sub>\/F<sub>r<\/sub> \u2264 e, the axial load has negligible effect (X=1, Y=0). When F<sub>a<\/sub>\/F<sub>r<\/sub> > e, both X and Y apply to account for the combined loading.<\/p>'},\n        {q:'What is the e-value in bearing calculations?',a:'<p>The e-value is a threshold ratio specific to each bearing type. It determines whether the axial load significantly affects bearing life. Different bearing types have different e-values based on their internal geometry and contact angle.<\/p>'},\n        {q:'How do I handle pure radial load?',a:'<p>For pure radial load (F<sub>a<\/sub> = 0), the equivalent load simplifies to P = F<sub>r<\/sub>. No axial factor applies since F<sub>a<\/sub>\/F<sub>r<\/sub> = 0, which is always \u2264 e.<\/p>'},\n        {q:'Can I use this for static equivalent load P0?',a:'<p>This calculator computes the dynamic equivalent load P for L<sub>10<\/sub> life calculations. For the static equivalent load P<sub>0<\/sub>, the formula is similar but uses different X<sub>0<\/sub> and Y<sub>0<\/sub> factors. Use the Bearing Static Safety Factor calculator for P<sub>0<\/sub> assessment.<\/p>'}\n    ];\n    var fl=$('vc-faq-list');faqData.forEach(function(f){fl.innerHTML+='<div class=\"vc-faq-item\"><button type=\"button\" class=\"vc-faq-q\"><span>'+f.q+'<\/span><svg class=\"vc-faq-chevron\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"><path d=\"M6 9l6 6 6-6\"\/><\/svg><\/button><div class=\"vc-faq-a\"><div class=\"vc-faq-a-inner\">'+f.a+'<\/div><\/div><\/div>';});\n    fl.addEventListener('click',function(e){var b=e.target.closest('.vc-faq-q');if(b)b.closest('.vc-faq-item').classList.toggle('vc-open');});\n\n    function saveHistory(entry){var key='vc_history_'+SLUG;var arr=[];try{arr=JSON.parse(localStorage.getItem(key))||[];}catch(e){}entry._ts=new Date().toISOString();arr.unshift(entry);if(arr.length>10)arr=arr.slice(0,10);try{localStorage.setItem(key,JSON.stringify(arr));}catch(e){}}\n    function loadParams(){var p=new URLSearchParams(window.location.search);p.forEach(function(v,k){var el=$(k)||$('vc-'+k);if(el)el.value=v;});}\n    function renderFormulas(){try{katex.render('P = X \\\\cdot F_r + Y \\\\cdot F_a \\\\quad [\\\\text{kN}]',$('vc-katex-1'),{displayMode:true,throwOnError:false});}catch(e){}}\n    function init(){loadParams();renderFormulas();calculate();}\n    if(document.readyState==='loading'){document.addEventListener('DOMContentLoaded',init);}else{init();}\n})();\n<\/script>\n","protected":false},"excerpt":{"rendered":"<p>Free online calculator for bearing equivalent dynamic load P = X\u00b7Fr + Y\u00b7Fa. Select bearing type, enter radial and axial forces, check e-value, and get X,Y factors automatically.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[],"tags":[],"class_list":["post-100016","calculator","type-calculator","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/bn\/wp-json\/wp\/v2\/calculator\/100016","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/bn\/wp-json\/wp\/v2\/calculator"}],"about":[{"href":"https:\/\/vibromera.eu\/bn\/wp-json\/wp\/v2\/types\/calculator"}],"version-history":[{"count":1,"href":"https:\/\/vibromera.eu\/bn\/wp-json\/wp\/v2\/calculator\/100016\/revisions"}],"predecessor-version":[{"id":100329,"href":"https:\/\/vibromera.eu\/bn\/wp-json\/wp\/v2\/calculator\/100016\/revisions\/100329"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/bn\/wp-json\/wp\/v2\/media?parent=100016"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/bn\/wp-json\/wp\/v2\/categories?post=100016"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/bn\/wp-json\/wp\/v2\/tags?post=100016"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}