{"id":100208,"date":"2026-02-15T20:27:29","date_gmt":"2026-02-15T20:27:29","guid":{"rendered":"https:\/\/vibromera.eu\/?post_type=calculator&#038;p=100208"},"modified":"2026-03-05T15:44:42","modified_gmt":"2026-03-05T15:44:42","slug":"roller-chain-calculator","status":"publish","type":"calculator","link":"https:\/\/vibromera.eu\/bn\/calculators\/roller-chain-calculator\/","title":{"rendered":"\u09b0\u09cb\u09b2\u09be\u09b0 \u099a\u09c7\u0987\u09a8 \u0995\u09cd\u09af\u09be\u09b2\u0995\u09c1\u09b2\u09c7\u099f\u09b0 | ISO 606 \u09ae\u09be\u09a4\u09cd\u09b0\u09be | Vibromera"},"content":{"rendered":"\n<script type=\"application\/ld+json\">\n{\"@context\":\"https:\/\/schema.org\",\"@type\":\"WebApplication\",\"name\":\"Roller Chain Calculator\",\"alternateName\":[\"ISO 606 Chain Calculator\",\"Chain Dimensions Calculator\"],\"description\":\"Free ISO 606 roller chain dimensions and capacity calculator. Lookup dimensions, breaking load, and working load.\",\"url\":\"https:\/\/vibromera.eu\/calculators\/roller-chain-calculator\/\",\"applicationCategory\":\"Engineering Calculator\",\"operatingSystem\":\"Any (Web Browser)\",\"offers\":{\"@type\":\"Offer\",\"price\":\"0\",\"priceCurrency\":\"EUR\"},\"creator\":{\"@type\":\"Organization\",\"name\":\"Vibromera\",\"url\":\"https:\/\/vibromera.eu\/\"},\"datePublished\":\"2024-01-01\",\"dateModified\":\"2025-02-14\",\"inLanguage\":\"en\",\"isAccessibleForFree\":true,\"featureList\":[\"ISO 606 B-series chains\",\"Dimensions lookup\",\"Breaking load\",\"Working load\",\"Safety factor check\",\"Auto-calculation\"],\"keywords\":\"roller chain, ISO 606, chain dimensions, breaking load, working load\"}\n<\/script>\n\n<script type=\"application\/ld+json\">\n{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[\n{\"@type\":\"Question\",\"name\":\"What is ISO 606?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"ISO 606 is the international standard for short-pitch precision roller chains. It defines chain dimensions (pitch, roller diameter, width, plate thickness) and minimum breaking loads for B-series (European) and A-series (American) chains.\"}},\n{\"@type\":\"Question\",\"name\":\"What is the safety factor for roller chains?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Typical safety factors: 7-10 for normal operation, 10-12 for shock loads. Safety factor = Breaking load \/ Working load. Higher factors are needed for corrosive environments, high speeds, or critical applications.\"}},\n{\"@type\":\"Question\",\"name\":\"How do I read a chain designation like 12B-1?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"12B-1 means: 12 = pitch in 1\/16 inches (12\u00d71.5875mm = 19.05mm), B = European series, 1 = single strand. -2 would be duplex (two strands), -3 is triplex.\"}},\n{\"@type\":\"Question\",\"name\":\"What is the difference between B-series and A-series chains?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"B-series (ISO 606 European) chains have different roller diameter, inner width, and plate dimensions than A-series (ANSI American) chains of the same pitch. B-series generally have larger rollers relative to pitch. Always specify B or A when ordering.\"}},\n{\"@type\":\"Question\",\"name\":\"How do I calculate chain tensile load?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Effective tension F = P\/(v\u00d7\u03b7), where P is power in watts, v is chain speed in m\/s, and \u03b7 is efficiency (~0.97-0.98). The working load must not exceed the allowable tension (breaking load \/ safety factor).\"}}\n]}\n<\/script>\n\n<script type=\"application\/ld+json\">\n{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/vibromera.eu\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Calculators\",\"item\":\"https:\/\/vibromera.eu\/calculators\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Roller Chain Calculator\",\"item\":\"https:\/\/vibromera.eu\/calculators\/roller-chain-calculator\/\"}]}\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-roller-chain\">\n<header class=\"vc-header\">\n    <p class=\"vc-header-eyebrow\">Free Engineering Tool #092<\/p>\n    <h1 class=\"vc-header-title\">Roller Chain Calculator<\/h1>\n    <p class=\"vc-header-subtitle\">ISO 606 roller chain dimensions and load capacity. Select chain designation and check tensile load against breaking and working load ratings.<\/p>\n    <div class=\"vc-badges\"><span class=\"vc-badge\">ISO 606<\/span><span class=\"vc-badge\">06B\u201348B<\/span><span class=\"vc-badge\">Dimensions &amp; Load<\/span><\/div>\n<\/header>\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\"><label class=\"vc-label\" for=\"vc-chain\">Chain Designation<\/label>\n                <select class=\"vc-select\" id=\"vc-chain\">\n                    <option value=\"06B\" data-p=\"9.525\" data-dr=\"6.35\" data-w=\"5.72\" data-bl=\"9.0\" data-mass=\"0.41\">06B \u2014 9.525 mm pitch<\/option>\n                    <option value=\"08B\" data-p=\"12.70\" data-dr=\"8.51\" data-w=\"7.75\" data-bl=\"18.0\" data-mass=\"0.69\" selected>08B \u2014 12.70 mm pitch<\/option>\n                    <option value=\"10B\" data-p=\"15.875\" data-dr=\"10.16\" data-w=\"9.65\" data-bl=\"22.2\" data-mass=\"0.93\">10B \u2014 15.875 mm pitch<\/option>\n                    <option value=\"12B\" data-p=\"19.05\" data-dr=\"12.07\" data-w=\"11.68\" data-bl=\"29.0\" data-mass=\"1.15\">12B \u2014 19.05 mm pitch<\/option>\n                    <option value=\"16B\" data-p=\"25.40\" data-dr=\"15.88\" data-w=\"17.02\" data-bl=\"60.0\" data-mass=\"2.71\">16B \u2014 25.40 mm pitch<\/option>\n                    <option value=\"20B\" data-p=\"31.75\" data-dr=\"19.05\" data-w=\"19.56\" data-bl=\"95.0\" data-mass=\"3.70\">20B \u2014 31.75 mm pitch<\/option>\n                    <option value=\"24B\" data-p=\"38.10\" data-dr=\"25.40\" data-w=\"25.40\" data-bl=\"160.0\" data-mass=\"6.20\">24B \u2014 38.10 mm pitch<\/option>\n                    <option value=\"28B\" data-p=\"44.45\" data-dr=\"27.94\" data-w=\"30.99\" data-bl=\"200.0\" data-mass=\"8.50\">28B \u2014 44.45 mm pitch<\/option>\n                    <option value=\"32B\" data-p=\"50.80\" data-dr=\"29.21\" data-w=\"30.99\" data-bl=\"250.0\" data-mass=\"10.25\">32B \u2014 50.80 mm pitch<\/option>\n                    <option value=\"40B\" data-p=\"63.50\" data-dr=\"39.37\" data-w=\"38.10\" data-bl=\"355.0\" data-mass=\"16.35\">40B \u2014 63.50 mm pitch<\/option>\n                    <option value=\"48B\" data-p=\"76.20\" data-dr=\"48.26\" data-w=\"45.72\" data-bl=\"530.0\" data-mass=\"25.00\">48B \u2014 76.20 mm pitch<\/option>\n                <\/select>\n            <\/div>\n            <div class=\"vc-field\"><label class=\"vc-label\" for=\"vc-strands\">Number of Strands<\/label>\n                <select class=\"vc-select\" id=\"vc-strands\">\n                    <option value=\"1\" selected>Simplex (1 strand)<\/option>\n                    <option value=\"2\">Duplex (2 strands)<\/option>\n                    <option value=\"3\">Triplex (3 strands)<\/option>\n                <\/select>\n            <\/div>\n            <div class=\"vc-field\"><label class=\"vc-label\" for=\"vc-load\">Applied Tensile Load <span class=\"vc-label-hint\">(kN)<\/span><\/label><input class=\"vc-input\" type=\"number\" id=\"vc-load\" inputmode=\"decimal\" step=\"any\" min=\"0\" placeholder=\"e.g. 5\" value=\"5\"><\/div>\n            <div class=\"vc-field\"><label class=\"vc-label\" for=\"vc-safety\">Required Safety Factor<\/label><input class=\"vc-input\" type=\"number\" id=\"vc-safety\" inputmode=\"decimal\" step=\"any\" min=\"1\" placeholder=\"e.g. 8\" value=\"8\"><\/div>\n        <\/div>\n        <div class=\"vc-presets\">\n            <div class=\"vc-presets-label\">Quick presets<\/div>\n            <button type=\"button\" class=\"vc-preset-btn\" data-ch=\"08B\" data-str=\"1\" data-ld=\"3\" data-sf=\"8\">08B simplex, 3 kN<\/button>\n            <button type=\"button\" class=\"vc-preset-btn\" data-ch=\"12B\" data-str=\"1\" data-ld=\"8\" data-sf=\"8\">12B simplex, 8 kN<\/button>\n            <button type=\"button\" class=\"vc-preset-btn\" data-ch=\"16B\" data-str=\"2\" data-ld=\"20\" data-sf=\"7\">16B duplex, 20 kN<\/button>\n        <\/div>\n    <\/form>\n    <div class=\"vc-results\" id=\"vc-results\">\n        <div class=\"vc-results-head\"><h2 class=\"vc-results-title\">Results<\/h2><button type=\"button\" class=\"vc-copy-btn\" id=\"vc-copy-btn\"><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<\/button><\/div>\n        <div class=\"vc-result-grid\">\n            <div class=\"vc-rcard vc-rcard-primary\"><div class=\"vc-rcard-label\">Safety Factor Check<\/div><div class=\"vc-rcard-value\" id=\"vc-r-check\">\u2014<\/div><\/div>\n            <div class=\"vc-rcard\"><div class=\"vc-rcard-label\">Breaking Load (min)<\/div><div class=\"vc-rcard-value\" id=\"vc-r-bl\">\u2014<\/div><\/div>\n            <div class=\"vc-rcard\"><div class=\"vc-rcard-label\">Allowable Working Load<\/div><div class=\"vc-rcard-value\" id=\"vc-r-wl\">\u2014<\/div><\/div>\n            <div class=\"vc-rcard\"><div class=\"vc-rcard-label\">Pitch<\/div><div class=\"vc-rcard-value\" id=\"vc-r-pitch\">\u2014<\/div><\/div>\n            <div class=\"vc-rcard\"><div class=\"vc-rcard-label\">Roller Diameter<\/div><div class=\"vc-rcard-value\" id=\"vc-r-roller\">\u2014<\/div><\/div>\n            <div class=\"vc-rcard\"><div class=\"vc-rcard-label\">Inner Width \/ Mass<\/div><div class=\"vc-rcard-value\" id=\"vc-r-dims\">\u2014<\/div><\/div>\n        <\/div>\n    <\/div>\n<\/div>\n\n<div class=\"vc-section vc-open\" id=\"vc-sec-theory\">\n    <button type=\"button\" class=\"vc-section-toggle\" aria-expanded=\"true\"><span class=\"vc-section-toggle-text\"><span class=\"vc-section-icon\">\ud83d\udcd8<\/span><span class=\"vc-section-title\">Theory &amp; Reference<\/span><\/span><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><\/button>\n    <div class=\"vc-section-body\"><div class=\"vc-section-inner vc-theory\">\n        <h3>Safety Factor<\/h3>\n        <div class=\"vc-formula-box\" id=\"vc-katex-1\"><\/div>\n        <h3>ISO 606 B-Series Chain Dimensions<\/h3>\n        <table class=\"vc-table\">\n            <thead><tr><th>Chain<\/th><th>Pitch (mm)<\/th><th>Roller \u2300 (mm)<\/th><th>Inner Width (mm)<\/th><th>Min Breaking Load (kN)<\/th><th>Mass (kg\/m)<\/th><\/tr><\/thead>\n            <tbody>\n                <tr><td>06B<\/td><td>9.525<\/td><td>6.35<\/td><td>5.72<\/td><td>9.0<\/td><td>0.41<\/td><\/tr>\n                <tr><td>08B<\/td><td>12.70<\/td><td>8.51<\/td><td>7.75<\/td><td>18.0<\/td><td>0.69<\/td><\/tr>\n                <tr><td>10B<\/td><td>15.875<\/td><td>10.16<\/td><td>9.65<\/td><td>22.2<\/td><td>0.93<\/td><\/tr>\n                <tr><td>12B<\/td><td>19.05<\/td><td>12.07<\/td><td>11.68<\/td><td>29.0<\/td><td>1.15<\/td><\/tr>\n                <tr><td>16B<\/td><td>25.40<\/td><td>15.88<\/td><td>17.02<\/td><td>60.0<\/td><td>2.71<\/td><\/tr>\n                <tr><td>20B<\/td><td>31.75<\/td><td>19.05<\/td><td>19.56<\/td><td>95.0<\/td><td>3.70<\/td><\/tr>\n                <tr><td>24B<\/td><td>38.10<\/td><td>25.40<\/td><td>25.40<\/td><td>160.0<\/td><td>6.20<\/td><\/tr>\n                <tr><td>28B<\/td><td>44.45<\/td><td>27.94<\/td><td>30.99<\/td><td>200.0<\/td><td>8.50<\/td><\/tr>\n                <tr><td>32B<\/td><td>50.80<\/td><td>29.21<\/td><td>30.99<\/td><td>250.0<\/td><td>10.25<\/td><\/tr>\n                <tr><td>40B<\/td><td>63.50<\/td><td>39.37<\/td><td>38.10<\/td><td>355.0<\/td><td>16.35<\/td><\/tr>\n                <tr><td>48B<\/td><td>76.20<\/td><td>48.26<\/td><td>45.72<\/td><td>530.0<\/td><td>25.00<\/td><\/tr>\n            <\/tbody>\n        <\/table>\n    <\/div><\/div>\n<\/div>\n\n<div class=\"vc-section\" id=\"vc-sec-related\">\n    <button type=\"button\" class=\"vc-section-toggle\" aria-expanded=\"false\"><span class=\"vc-section-toggle-text\"><span class=\"vc-section-icon\">\ud83d\udd17<\/span><span class=\"vc-section-title\">Related Calculators<\/span><\/span><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><\/button>\n    <div class=\"vc-section-body\"><div class=\"vc-section-inner\"><div class=\"vc-related\">\n        <a class=\"vc-related-link\" href=\"\/calculators\/chain-drive-calculator\/\">Chain Drive Calculator<\/a>\n        <a class=\"vc-related-link\" href=\"\/calculators\/belt-drive-calculator\/\">Belt Drive Calculator<\/a>\n        <a class=\"vc-related-link\" href=\"\/calculators\/coupling-torque-calculator\/\">Coupling Torque Calculator<\/a>\n    <\/div><\/div><\/div>\n<\/div>\n\n<div class=\"vc-section\" id=\"vc-sec-faq\">\n    <button type=\"button\" class=\"vc-section-toggle\" aria-expanded=\"false\"><span class=\"vc-section-toggle-text\"><span class=\"vc-section-icon\">\u2753<\/span><span class=\"vc-section-title\">Frequently Asked Questions<\/span><\/span><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><\/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\"><div class=\"vc-promo-text\"><strong>Vibromera \u2014 Portable Balancing &amp; Vibration Analysis<\/strong><br>Professional field balancing instruments. Used in 50+ countries.<\/div><a class=\"vc-promo-link\" href=\"https:\/\/vibromera.eu\/\" target=\"_blank\" rel=\"noopener\">Learn More<\/a><\/div>\n<footer class=\"vc-footer\"><p>\u00a9 2024\u20132025 <a href=\"https:\/\/vibromera.eu\/\">Vibromera<\/a> \u2014 Engineering Calculators<\/p><p style=\"font-size:12px;margin-top:4px;\">Based on ISO 606. Last updated: February 2025<\/p><div class=\"vc-footer-links\"><a href=\"\/calculators\/engineering-calculators\/\">All Calculators<\/a><a href=\"https:\/\/vibromera.eu\/contacts\/\">Contact<\/a><\/div><\/footer>\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    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    var strandFactors={1:1.0,2:1.7,3:2.5};\n\n    function calculate(){\n        var sel=$('vc-chain');var opt=sel.options[sel.selectedIndex];\n        var pitch=parseFloat(opt.getAttribute('data-p'));\n        var dr=parseFloat(opt.getAttribute('data-dr'));\n        var w=parseFloat(opt.getAttribute('data-w'));\n        var blSingle=parseFloat(opt.getAttribute('data-bl'));\n        var mass=parseFloat(opt.getAttribute('data-mass'));\n        var strands=parseInt($('vc-strands').value);\n        var load=parseFloat($('vc-load').value)||0;\n        var reqSF=parseFloat($('vc-safety').value)||7;\n\n        var sf=strandFactors[strands]||1;\n        var bl=blSingle*sf;\n        var wl=bl\/reqSF;\n        var actualSF=load>0?bl\/load:Infinity;\n        var ok=actualSF>=reqSF;\n\n        $('vc-r-check').innerHTML=(load>0?'<span style=\"color:var(--vc-'+(ok?'green':'red')+')\">SF = '+fmt(actualSF,1)+' '+(ok?'\u2713 OK':'\u26a0 INSUFFICIENT')+'<\/span>':'Enter load to check');\n        $('vc-r-bl').innerHTML=fmt(bl,1)+' <span class=\"vc-rcard-unit\">kN<\/span> <span class=\"vc-rcard-unit\">('+strands+'\u00d7'+opt.value+')<\/span>';\n        $('vc-r-wl').innerHTML=fmt(wl,1)+' <span class=\"vc-rcard-unit\">kN<\/span> <span class=\"vc-rcard-unit\">(SF='+reqSF+')<\/span>';\n        $('vc-r-pitch').innerHTML=fmt(pitch,3)+' <span class=\"vc-rcard-unit\">mm<\/span>';\n        $('vc-r-roller').innerHTML=fmt(dr,2)+' <span class=\"vc-rcard-unit\">mm<\/span>';\n        $('vc-r-dims').innerHTML=fmt(w,2)+' <span class=\"vc-rcard-unit\">mm<\/span> \/ '+fmt(mass*sf,2)+' <span class=\"vc-rcard-unit\">kg\/m<\/span>';\n\n        $('vc-results').classList.add('vc-visible');\n    }\n\n    document.querySelectorAll('.vc-preset-btn').forEach(function(btn){\n        btn.addEventListener('click',function(e){e.preventDefault();$('vc-chain').value=this.getAttribute('data-ch');$('vc-strands').value=this.getAttribute('data-str');$('vc-load').value=this.getAttribute('data-ld');$('vc-safety').value=this.getAttribute('data-sf');calculate()});\n    });\n\n    $('vc-form').addEventListener('input',calculate);$('vc-form').addEventListener('change',calculate);\n\n    $('vc-copy-btn').addEventListener('click',function(){\n        var text='Roller Chain Calculation (ISO 606)\\n\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\\nChain: '+$('vc-chain').value+'-'+$('vc-strands').value+'\\nBreaking Load: '+$('vc-r-bl').textContent+'\\nAllowable: '+$('vc-r-wl').textContent+'\\nCheck: '+$('vc-r-check').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\/calculators\/roller-chain-calculator\/';\n        if(navigator.clipboard){navigator.clipboard.writeText(text).then(function(){var b=$('vc-copy-btn');b.classList.add('vc-copied');b.innerHTML='<svg width=\"14\" height=\"14\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"><polyline points=\"20 6 9 17 4 12\"\/><\/svg> Copied!';setTimeout(function(){b.classList.remove('vc-copied');b.innerHTML='<svg width=\"14\" height=\"14\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"><rect x=\"9\" y=\"9\" width=\"13\" height=\"13\" rx=\"2\"\/><path d=\"M5 15H4a2 2 0 01-2-2V4a2 2 0 012-2h9a2 2 0 012 2v1\"\/><\/svg> Copy'},2000)})}\n    });\n\n    document.querySelectorAll('.vc-section-toggle').forEach(function(btn){btn.addEventListener('click',function(){var s=this.closest('.vc-section');s.classList.toggle('vc-open');this.setAttribute('aria-expanded',s.classList.contains('vc-open'))})});\n\n    var faqData=[\n        {q:'What is ISO 606?',a:'<p>ISO 606 is the international standard for short-pitch precision roller chains. It defines dimensions, minimum breaking loads, and testing requirements for B-series (European) and A-series (American) chains.<\/p>'},\n        {q:'What is the safety factor for roller chains?',a:'<p>Typical: 7\u201310 for normal operation, 10\u201312 for shock loads. Safety factor = Breaking load \/ Working load.<\/p>'},\n        {q:'How do I read a chain designation like 12B-1?',a:'<p>12 = pitch in 1\/16 inches (19.05mm), B = European series, 1 = single strand. -2 = duplex, -3 = triplex.<\/p>'},\n        {q:'What is the difference between B-series and A-series?',a:'<p>B-series (European) and A-series (American) have different roller diameter and width for the same pitch. Always specify B or A when ordering.<\/p>'},\n        {q:'How do I calculate chain tensile load?',a:'<p>Effective tension F = P\/(v\u00d7\u03b7), where P is power in watts, v is chain speed in m\/s, \u03b7 is efficiency (~0.97\u20130.98).<\/p>'}\n    ];\n    var fl=$('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 renderFormulas(){try{katex.render('SF = \\\\frac{F_{break}}{F_{working}} \\\\geq SF_{required}',$('vc-katex-1'),{displayMode:true,throwOnError:false})}catch(e){}}\n\n    function init(){renderFormulas();calculate()}\n    if(document.readyState==='loading'){document.addEventListener('DOMContentLoaded',init)}else{init()}\n})();\n<\/script>\n","protected":false},"excerpt":{"rendered":"<p>\u09ac\u09bf\u09a8\u09be\u09ae\u09c2\u09b2\u09cd\u09af\u09c7 \u0985\u09a8\u09b2\u09be\u0987\u09a8 ISO 606 \u09b0\u09cb\u09b2\u09be\u09b0 \u099a\u09c7\u0987\u09a8 \u09ae\u09be\u09a4\u09cd\u09b0\u09be \u098f\u09ac\u0982 \u0995\u09cd\u09b7\u09ae\u09a4\u09be \u0995\u09cd\u09af\u09be\u09b2\u0995\u09c1\u09b2\u09c7\u099f\u09b0\u0964 06B \u09a5\u09c7\u0995\u09c7 48B \u09b8\u09bf\u09b0\u09bf\u099c \u099a\u09c7\u0987\u09a8\u09c7\u09b0 \u099c\u09a8\u09cd\u09af \u099a\u09c7\u0987\u09a8 \u09ae\u09be\u09a4\u09cd\u09b0\u09be, \u09ac\u09cd\u09b0\u09c7\u0995\u09bf\u0982 \u09b2\u09cb\u09a1 \u098f\u09ac\u0982 \u0995\u09b0\u09cd\u09ae\u0995\u09cd\u09b7\u09ae \u09b2\u09cb\u09a1 \u0996\u09c1\u0981\u099c\u09c7 \u09a6\u09c7\u0996\u09c1\u09a8\u0964<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[],"tags":[],"class_list":["post-100208","calculator","type-calculator","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/bn\/wp-json\/wp\/v2\/calculator\/100208","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":2,"href":"https:\/\/vibromera.eu\/bn\/wp-json\/wp\/v2\/calculator\/100208\/revisions"}],"predecessor-version":[{"id":100782,"href":"https:\/\/vibromera.eu\/bn\/wp-json\/wp\/v2\/calculator\/100208\/revisions\/100782"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/bn\/wp-json\/wp\/v2\/media?parent=100208"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/bn\/wp-json\/wp\/v2\/categories?post=100208"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/bn\/wp-json\/wp\/v2\/tags?post=100208"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}