{"id":100056,"date":"2026-02-15T20:09:39","date_gmt":"2026-02-15T20:09:39","guid":{"rendered":"https:\/\/vibromera.eu\/?post_type=calculator&#038;p=100056"},"modified":"2026-07-02T19:14:46","modified_gmt":"2026-07-02T19:14:46","slug":"chain-drive-calculator","status":"publish","type":"calculator","link":"https:\/\/vibromera.eu\/bn\/calculators\/chain-drive-calculator\/","title":{"rendered":"\u099a\u09c7\u0987\u09a8 \u09a1\u09cd\u09b0\u09be\u0987\u09ad \u0995\u09cd\u09af\u09be\u09b2\u0995\u09c1\u09b2\u09c7\u099f\u09b0 | \u09b0\u09cb\u09b2\u09be\u09b0 \u099a\u09c7\u0987\u09a8 \u09a8\u09bf\u09b0\u09cd\u09ac\u09be\u099a\u09a8 | \u09ac\u09bf\u09a8\u09be\u09ae\u09c2\u09b2\u09cd\u09af\u09c7 \u0985\u09a8\u09b2\u09be\u0987\u09a8 \u09b8\u09b0\u099e\u09cd\u099c\u09be\u09ae"},"content":{"rendered":"\n<script type=\"application\/ld+json\">\n{\"@context\":\"https:\/\/schema.org\",\"@type\":\"WebApplication\",\"name\":\"Chain Drive Calculator\",\"alternateName\":[\"Roller Chain Selection Calculator\",\"Chain Pitch Calculator\"],\"description\":\"Free online roller chain drive selection calculator. Select chain pitch from power rating tables.\",\"url\":\"https:\/\/vibromera.eu\/calculators\/chain-drive-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\":[\"Chain pitch selection\",\"Power rating lookup\",\"Service factor\",\"Chain speed calculation\",\"Sprocket ratio\",\"Auto-calculation\"],\"keywords\":\"roller chain, chain drive, chain pitch, sprocket, ISO 606\"}\n<\/script>\n\n<script type=\"application\/ld+json\">\n{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[\n{\"@type\":\"Question\",\"name\":\"How do I select the right roller chain pitch?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Multiply the transmitted power by the service factor to get design power. Look up the chain pitch in power rating tables based on the small sprocket speed. Common pitches: 08B (12.7mm) for light duty, 10B (15.875mm) for medium, 12B-16B for heavy loads.\"}},\n{\"@type\":\"Question\",\"name\":\"What service factors apply to chain drives?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Service factors: 1.0 for uniform load\/smooth start, 1.3 for moderate shock, 1.5 for heavy shock, 1.7 for frequent starts\/reversing. Multiply by 1.25 for 16+ hours\/day operation.\"}},\n{\"@type\":\"Question\",\"name\":\"How do I calculate chain length in links?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Chain length L = 2C\/p + (z1+z2)\/2 + [(z2-z1)\/(2\u03c0)]\u00b2\u00d7p\/C, where C is center distance, p is pitch, z1 and z2 are sprocket teeth. Round to the nearest even number of links.\"}},\n{\"@type\":\"Question\",\"name\":\"What is the maximum chain speed?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Maximum chain speed depends on chain quality and lubrication. Typical limits: 08B up to 12 m\/s, 10B up to 15 m\/s, 12B up to 18 m\/s. Higher speeds require oil bath or pressure lubrication.\"}},\n{\"@type\":\"Question\",\"name\":\"What is the minimum number of teeth for a sprocket?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Minimum recommended: 17 teeth for smooth operation, 21 teeth for high speed. Fewer teeth cause increased wear, noise, and chordal action. Standard minimum is 9 teeth but not recommended for power transmission.\"}}\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\":\"Chain Drive Calculator\",\"item\":\"https:\/\/vibromera.eu\/calculators\/chain-drive-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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strong{color:var(--vc-ink)}.vc-promo-link{padding:8px 20px;font-size:13px;font-weight:700;color:#fff;background:var(--vc-accent);border-radius:var(--vc-radius);text-decoration:none;white-space:nowrap;transition:background .15s}.vc-promo-link:hover{background:var(--vc-accent-hover)}\n.vc-footer{text-align:center;padding:32px 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-chain-drive\">\n<header class=\"vc-header\">\n    <p class=\"vc-header-eyebrow\">Free Engineering Tool #091<\/p>\n    <h1 class=\"vc-header-title\">Chain Drive Calculator<\/h1>\n    <p class=\"vc-header-subtitle\">Select roller chain pitch from power rating tables. Enter power, driver\/driven speed, and service factor. Calculates chain speed, sprocket sizes, and chain length.<\/p>\n    <div class=\"vc-badges\"><span class=\"vc-badge\">ISO 606 chain sizes<\/span><span class=\"vc-badge\">Roller Chain<\/span><span class=\"vc-badge\">08B\u201324B<\/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-power\">Power <span class=\"vc-label-hint\">(kW)<\/span><\/label><input class=\"vc-input\" type=\"number\" id=\"vc-power\" inputmode=\"decimal\" step=\"any\" min=\"0.1\" placeholder=\"e.g. 15\" value=\"15\"><\/div>\n            <div class=\"vc-field\"><label class=\"vc-label\" for=\"vc-n1\">Driver Speed <span class=\"vc-label-hint\">(RPM)<\/span><\/label><input class=\"vc-input\" type=\"number\" id=\"vc-n1\" inputmode=\"decimal\" step=\"any\" min=\"1\" placeholder=\"e.g. 1000\" value=\"1000\"><\/div>\n            <div class=\"vc-field\"><label class=\"vc-label\" for=\"vc-z1\">Driver Sprocket Teeth <span class=\"vc-label-hint\">(z\u2081)<\/span><\/label><input class=\"vc-input\" type=\"number\" id=\"vc-z1\" inputmode=\"decimal\" step=\"1\" min=\"9\" placeholder=\"e.g. 19\" value=\"19\"><\/div>\n            <div class=\"vc-field\"><label class=\"vc-label\" for=\"vc-z2\">Driven Sprocket Teeth <span class=\"vc-label-hint\">(z\u2082)<\/span><\/label><input class=\"vc-input\" type=\"number\" id=\"vc-z2\" inputmode=\"decimal\" step=\"1\" min=\"9\" placeholder=\"e.g. 57\" value=\"57\"><\/div>\n            <div class=\"vc-field\"><label class=\"vc-label\" for=\"vc-sf\">Service Factor<\/label><select class=\"vc-select\" id=\"vc-sf\"><option value=\"1.0\">1.0 \u2014 Uniform, smooth start<\/option><option value=\"1.3\" selected>1.3 \u2014 Moderate shock<\/option><option value=\"1.5\">1.5 \u2014 Heavy shock<\/option><option value=\"1.7\">1.7 \u2014 Frequent starts\/reversals<\/option><\/select><\/div>\n            <div class=\"vc-field\"><label class=\"vc-label\" for=\"vc-center\">Center Distance <span class=\"vc-label-hint\">(mm, optional)<\/span><\/label><input class=\"vc-input\" type=\"number\" id=\"vc-center\" inputmode=\"decimal\" step=\"any\" min=\"0\" placeholder=\"e.g. 600\" value=\"600\"><\/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-p=\"5\" data-n=\"1000\" data-z1=\"17\" data-z2=\"51\" data-sf=\"1.0\" data-c=\"400\">Light Conveyor 5 kW<\/button>\n            <button type=\"button\" class=\"vc-preset-btn\" data-p=\"15\" data-n=\"1000\" data-z1=\"19\" data-z2=\"57\" data-sf=\"1.3\" data-c=\"600\">Mixer 15 kW<\/button>\n            <button type=\"button\" class=\"vc-preset-btn\" data-p=\"37\" data-n=\"750\" data-z1=\"21\" data-z2=\"63\" data-sf=\"1.5\" data-c=\"800\">Crusher 37 kW<\/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\">Recommended Chain<\/div><div class=\"vc-rcard-value\" id=\"vc-r-chain\">\u2014<\/div><\/div>\n            <div class=\"vc-rcard\"><div class=\"vc-rcard-label\">Design Power<\/div><div class=\"vc-rcard-value\" id=\"vc-r-pd\">\u2014<\/div><\/div>\n            <div class=\"vc-rcard\"><div class=\"vc-rcard-label\">Chain Speed<\/div><div class=\"vc-rcard-value\" id=\"vc-r-speed\">\u2014<\/div><\/div>\n            <div class=\"vc-rcard\"><div class=\"vc-rcard-label\">Speed Ratio<\/div><div class=\"vc-rcard-value\" id=\"vc-r-ratio\">\u2014<\/div><\/div>\n            <div class=\"vc-rcard\"><div class=\"vc-rcard-label\">Chain Length<\/div><div class=\"vc-rcard-value\" id=\"vc-r-length\">\u2014<\/div><\/div>\n            <div class=\"vc-rcard\"><div class=\"vc-rcard-label\">Output Speed<\/div><div class=\"vc-rcard-value\" id=\"vc-r-n2\">\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; Formulas<\/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>Design Power<\/h3>\n        <div class=\"vc-formula-box\" id=\"vc-katex-1\"><\/div>\n        <h3>Chain Length in Links<\/h3>\n        <div class=\"vc-formula-box\" id=\"vc-katex-2\"><\/div>\n        <h3>Chain Power Rating Table (single strand, 19T sprocket \u2014 typical manufacturer catalogue values)<\/h3>\n        <table class=\"vc-table\">\n            <thead><tr><th>Chain<\/th><th>Pitch<\/th><th>@500 RPM<\/th><th>@1000 RPM<\/th><th>@1500 RPM<\/th><\/tr><\/thead>\n            <tbody>\n                <tr><td>06B-1<\/td><td>9.525 mm<\/td><td>1.1 kW<\/td><td>1.8 kW<\/td><td>2.3 kW<\/td><\/tr>\n                <tr><td>08B-1<\/td><td>12.70 mm<\/td><td>2.8 kW<\/td><td>4.7 kW<\/td><td>6.0 kW<\/td><\/tr>\n                <tr><td>10B-1<\/td><td>15.875 mm<\/td><td>5.3 kW<\/td><td>9.0 kW<\/td><td>11.5 kW<\/td><\/tr>\n                <tr><td>12B-1<\/td><td>19.05 mm<\/td><td>8.9 kW<\/td><td>15 kW<\/td><td>19 kW<\/td><\/tr>\n                <tr><td>16B-1<\/td><td>25.40 mm<\/td><td>19 kW<\/td><td>32 kW<\/td><td>38 kW<\/td><\/tr>\n                <tr><td>20B-1<\/td><td>31.75 mm<\/td><td>33 kW<\/td><td>52 kW<\/td><td>60 kW<\/td><\/tr>\n                <tr><td>24B-1<\/td><td>38.10 mm<\/td><td>55 kW<\/td><td>85 kW<\/td><td>95 kW<\/td><\/tr>\n            <\/tbody>\n        <\/table>\n        <div class=\"vc-warning-box\"><p style=\"margin:0;font-size:14px;color:var(--vc-ink-secondary)\"><strong>\u26a0\ufe0f Note:<\/strong> Power ratings, service factors and strand multipliers are engineering estimates based on manufacturer catalogue practice \u2014 ISO 606 specifies chain dimensions, tolerances and minimum breaking loads, not power ratings. Ratings are approximate and depend on lubrication type. For duplex chains, multiply by 1.7; for triplex by 2.5. Always verify against the selected chain manufacturer&#8217;s catalogue.<\/p><\/div>\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\/roller-chain-calculator\/\">Roller Chain Dimensions<\/a>\n        <a class=\"vc-related-link\" href=\"\/calculators\/belt-drive-calculator\/\">Belt Drive Calculator<\/a>\n        <a class=\"vc-related-link\" href=\"\/calculators\/gear-ratio-calculator\/\">Gear Ratio Calculator<\/a>\n        <a class=\"vc-related-link\" href=\"\/calculators\/drive-efficiency-calculator\/\">Drive Efficiency 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;\">Chain dimensions and designations per ISO 606; power ratings based on manufacturer catalogue practice. 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    \/\/ Chain power ratings at 1000 RPM, 19T, single strand (kW)\n    var chains=[\n        {name:'06B-1',pitch:9.525,pwr:1.8},\n        {name:'08B-1',pitch:12.70,pwr:4.7},\n        {name:'10B-1',pitch:15.875,pwr:9.0},\n        {name:'12B-1',pitch:19.05,pwr:15},\n        {name:'16B-1',pitch:25.40,pwr:32},\n        {name:'20B-1',pitch:31.75,pwr:52},\n        {name:'24B-1',pitch:38.10,pwr:85}\n    ];\n\n    function calculate(){\n        var P=parseFloat($('vc-power').value);\n        var n1=parseFloat($('vc-n1').value);\n        var z1=parseInt($('vc-z1').value);\n        var z2=parseInt($('vc-z2').value);\n        var sf=parseFloat($('vc-sf').value);\n        var C=parseFloat($('vc-center').value)||0;\n        if(!P||P<=0||!n1||n1<=0||!z1||z1<9||!z2||z2<9){$('vc-results').classList.remove('vc-visible');return}\n\n        var Pd=P*sf;\n        var ratio=z2\/z1;\n        var n2=n1\/ratio;\n\n        \/\/ Speed correction: power rating scales ~linearly with speed\n        var speedFactor=n1\/1000;\n        \/\/ Teeth correction (reference 19T)\n        var teethFactor=Math.pow(z1\/19,1.08);\n        \n        \/\/ Select chain\n        var selected=chains[chains.length-1];\n        for(var i=0;i<chains.length;i++){\n            var rated=chains[i].pwr*speedFactor*teethFactor;\n            if(rated>=Pd){selected=chains[i];break}\n        }\n\n        var pitch=selected.pitch;\n        \/\/ Chain speed\n        var d1=pitch\/Math.sin(Math.PI\/z1);\n        var chainSpeed=z1*pitch*n1\/60000; \/\/ m\/s\n\n        \/\/ Chain length in links (if C given)\n        var lengthLinks=0;\n        if(C>0){\n            var Lp=2*C\/pitch+(z1+z2)\/2+Math.pow((z2-z1)\/(2*Math.PI),2)*pitch\/C;\n            lengthLinks=Math.ceil(Lp\/2)*2; \/\/ round up to even\n        }\n\n        $('vc-r-chain').innerHTML=selected.name+' <span class=\"vc-rcard-unit\">(pitch '+selected.pitch+' mm)<\/span>';\n        $('vc-r-pd').innerHTML=fmt(Pd,1)+' <span class=\"vc-rcard-unit\">kW<\/span>';\n        $('vc-r-speed').innerHTML=fmt(chainSpeed,2)+' <span class=\"vc-rcard-unit\">m\/s<\/span>';\n        $('vc-r-ratio').innerHTML=fmt(ratio,2)+' <span class=\"vc-rcard-unit\">: 1<\/span>';\n        $('vc-r-length').innerHTML=lengthLinks>0?lengthLinks+' <span class=\"vc-rcard-unit\">links<\/span> ('+fmt(lengthLinks*pitch,0)+' <span class=\"vc-rcard-unit\">mm)<\/span>':'\u2014';\n        $('vc-r-n2').innerHTML=fmt(n2,1)+' <span class=\"vc-rcard-unit\">RPM<\/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){\n            e.preventDefault();\n            $('vc-power').value=this.getAttribute('data-p');$('vc-n1').value=this.getAttribute('data-n');\n            $('vc-z1').value=this.getAttribute('data-z1');$('vc-z2').value=this.getAttribute('data-z2');\n            $('vc-sf').value=this.getAttribute('data-sf');$('vc-center').value=this.getAttribute('data-c');\n            calculate();\n        });\n    });\n\n    $('vc-form').addEventListener('input',calculate);\n    $('vc-form').addEventListener('change',calculate);\n\n    $('vc-copy-btn').addEventListener('click',function(){\n        var text='Chain Drive Calculation\\n\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\\nChain: '+$('vc-r-chain').textContent+'\\nDesign Power: '+$('vc-r-pd').textContent+'\\nChain Speed: '+$('vc-r-speed').textContent+'\\nRatio: '+$('vc-r-ratio').textContent+'\\n\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\\nvibromera.eu\/calculators\/chain-drive-calculator\/';\n        if(navigator.clipboard){navigator.clipboard.writeText(text).then(function(){var b=$('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:'How do I select the right roller chain pitch?',a:'<p>Multiply power by service factor for design power. Look up chain pitch from power rating tables at the small sprocket speed. Common: 08B for light, 10B medium, 12B-16B heavy loads.<\/p>'},\n        {q:'What service factors apply to chain drives?',a:'<p>1.0 uniform\/smooth start, 1.3 moderate shock, 1.5 heavy shock, 1.7 frequent starts\/reversing. Multiply by 1.25 for 16+ hours\/day.<\/p>'},\n        {q:'How do I calculate chain length in links?',a:'<p>L = 2C\/p + (z\u2081+z\u2082)\/2 + [(z\u2082-z\u2081)\/(2\u03c0)]\u00b2\u00d7p\/C. Round up to the nearest even number of links to avoid an offset link.<\/p>'},\n        {q:'What is the maximum chain speed?',a:'<p>Depends on chain size and lubrication: 08B up to 12 m\/s, 10B up to 15 m\/s, 12B up to 18 m\/s. Higher speeds require oil bath or forced lubrication.<\/p>'},\n        {q:'What is the minimum number of teeth for a sprocket?',a:'<p>Recommended minimum: 17 teeth for smooth operation, 21 for high speed. Fewer teeth causes increased wear, noise, and chordal vibration.<\/p>'}\n    ];\n    var fl=$('vc-faq-list');faqData.forEach(function(f){fl.innerHTML+='<div class=\"vc-faq-item\"><button type=\"button\" class=\"vc-faq-q\"><span>'+f.q+'<\/span><svg class=\"vc-faq-chevron\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"><path d=\"M6 9l6 6 6-6\"\/><\/svg><\/button><div class=\"vc-faq-a\"><div class=\"vc-faq-a-inner\">'+f.a+'<\/div><\/div><\/div>'});\n    fl.addEventListener('click',function(e){var b=e.target.closest('.vc-faq-q');if(b)b.closest('.vc-faq-item').classList.toggle('vc-open')});\n\n    function renderFormulas(){\n        try{\n            katex.render('P_d = P \\\\times K_A',$('vc-katex-1'),{displayMode:true,throwOnError:false});\n            katex.render('L_{links} = \\\\frac{2C}{p} + \\\\frac{z_1+z_2}{2} + \\\\left(\\\\frac{z_2-z_1}{2\\\\pi}\\\\right)^{\\\\!2} \\\\cdot \\\\frac{p}{C}',$('vc-katex-2'),{displayMode:true,throwOnError:false});\n        }catch(e){}\n    }\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 \u09b0\u09cb\u09b2\u09be\u09b0 \u099a\u09c7\u0987\u09a8 \u09a1\u09cd\u09b0\u09be\u0987\u09ad \u09a8\u09bf\u09b0\u09cd\u09ac\u09be\u099a\u09a8 \u0995\u09cd\u09af\u09be\u09b2\u0995\u09c1\u09b2\u09c7\u099f\u09b0\u0964 \u09b6\u0995\u09cd\u09a4\u09bf, \u099a\u09be\u09b2\u0995 \u0997\u09a4\u09bf, \u099a\u09be\u09b2\u09bf\u09a4 \u0997\u09a4\u09bf \u098f\u09ac\u0982 \u09b8\u09c7\u09ac\u09be \u09ab\u09cd\u09af\u09be\u0995\u09cd\u099f\u09b0 \u09aa\u09cd\u09b0\u09ac\u09c7\u09b6 \u0995\u09b0\u09c1\u09a8 \u098f\u09ac\u0982 \u09b6\u0995\u09cd\u09a4\u09bf \u09b0\u09c7\u099f\u09bf\u0982 \u099f\u09c7\u09ac\u09bf\u09b2 \u09a5\u09c7\u0995\u09c7 \u099a\u09c7\u0987\u09a8 \u09aa\u09bf\u099a \u09a8\u09bf\u09b0\u09cd\u09ac\u09be\u099a\u09a8 \u0995\u09b0\u09c1\u09a8\u0964<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[],"tags":[],"class_list":["post-100056","calculator","type-calculator","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/bn\/wp-json\/wp\/v2\/calculator\/100056","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\/100056\/revisions"}],"predecessor-version":[{"id":102109,"href":"https:\/\/vibromera.eu\/bn\/wp-json\/wp\/v2\/calculator\/100056\/revisions\/102109"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/bn\/wp-json\/wp\/v2\/media?parent=100056"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/bn\/wp-json\/wp\/v2\/categories?post=100056"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/bn\/wp-json\/wp\/v2\/tags?post=100056"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}