{"id":100142,"date":"2026-02-15T20:19:57","date_gmt":"2026-02-15T20:19:57","guid":{"rendered":"https:\/\/vibromera.eu\/?post_type=calculator&#038;p=100142"},"modified":"2026-02-15T20:19:57","modified_gmt":"2026-02-15T20:19:57","slug":"keyway-calculator","status":"publish","type":"calculator","link":"https:\/\/vibromera.eu\/nb\/calculators\/keyway-calculator\/","title":{"rendered":"Kilesporkalkulator ISO 773 | Gratisverkt\u00f8y #074"},"content":{"rendered":"\n<script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\",\"@type\":\"WebApplication\",\"name\":\"Keyway Calculator\",\"description\":\"Keyway design per ISO 773\/DIN 6885.\",\"url\":\"https:\/\/vibromera.eu\/calculators\/keyway-calculator\/\",\"applicationCategory\":\"Engineering Calculator\",\"offers\":{\"@type\":\"Offer\",\"price\":\"0\",\"priceCurrency\":\"EUR\"},\"creator\":{\"@type\":\"Organization\",\"name\":\"Vibromera\"},\"datePublished\":\"2024-01-01\",\"dateModified\":\"2025-02-14\",\"inLanguage\":\"en\",\"isAccessibleForFree\":true}<\/script>\n\n<script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[\n{\"@type\":\"Question\",\"name\":\"How is key size selected?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"By shaft diameter per ISO 773\/DIN 6885 standard lookup table.\"}},\n{\"@type\":\"Question\",\"name\":\"What stresses are checked?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Shear stress tau=F\/(w*L) and bearing stress sigma=F\/((h\/2)*L).\"}},\n{\"@type\":\"Question\",\"name\":\"What key length to use?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"1 to 1.5 times shaft diameter. Min is hub length minus chamfers.\"}},\n{\"@type\":\"Question\",\"name\":\"What about stress concentration?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Keyway creates Kt=1.5-2.5. Use end-milled keyways for better fatigue life.\"}},\n{\"@type\":\"Question\",\"name\":\"Can I use two keys?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes at 180 degrees. Assume each carries 75% due to tolerances.\"}}\n]}<\/script>\n\n<script type=\"application\/ld+json\">{\"@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\":\"Keyway Calculator\",\"item\":\"https:\/\/vibromera.eu\/calculators\/keyway-calculator\/\"}]}<\/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 href=\"https:\/\/fonts.googleapis.com\/css2?family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;0,9..40,700;1,9..40,400&#038;family=JetBrains+Mono:wght@400;500;600&#038;family=Fraunces:opsz,wght@9..144,700;9..144,800&#038;display=swap\" rel=\"stylesheet\">\n\n<link rel=\"stylesheet\" href=\"https:\/\/cdn.jsdelivr.net\/npm\/katex@0.16.11\/dist\/katex.min.css\">\n\n<style>:root{--vc-bg:#f4f1ec;--vc-surface:#fff;--vc-surface-alt:#f8f6f2;--vc-ink:#1a1a1a;--vc-ink-secondary:#5a5650;--vc-ink-muted:#8a857e;--vc-accent:#c85a2a;--vc-accent-hover:#b04d22;--vc-accent-light:#fdf0ea;--vc-green:#2a7a4b;--vc-green-light:#eaf8ef;--vc-yellow:#a67c00;--vc-yellow-light:#fef9e8;--vc-red:#b91c1c;--vc-border:#d9d4cc;--vc-border-light:#e8e4dd;--vc-shadow:0 1px 3px rgba(26,26,26,.06),0 4px 12px rgba(26,26,26,.04);--vc-radius:8px;--vc-radius-lg:12px;--vc-font:'DM Sans',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;--vc-mono:'JetBrains Mono',Consolas,Monaco,monospace;--vc-display:'Fraunces',Georgia,serif}.vc-calculator{font-family:var(--vc-font);font-size:15px;line-height:1.65;color:var(--vc-ink);max-width:960px;margin:0 auto;padding:20px 16px 40px}.vc-calculator *{box-sizing:border-box}.vc-header{text-align:center;padding:48px 24px 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print{.vc-section-body{max-height:none!important}.vc-results{max-height:none!important;padding:24px!important}.vc-copy-btn,.vc-presets,.vc-promo{display:none!important}}<\/style>\n\n<div class=\"vc-calculator\">\n<header class=\"vc-header\">\n<p class=\"vc-header-eyebrow\">Free Engineering Tool #074<\/p>\n<h1 class=\"vc-header-title\">Keyway Calculator &mdash; ISO 773<\/h1>\n<p class=\"vc-header-subtitle\">Design keyways per ISO 773 \/ DIN 6885. Enter shaft diameter and torque to find standard key size and check bearing and shear stresses.<\/p>\n<div class=\"vc-badges\"><span class=\"vc-badge\">ISO 773<\/span><span class=\"vc-badge\">Stress Check<\/span><span class=\"vc-badge\">Auto-Calc<\/span><\/div>\n<\/header>\n<div class=\"vc-card\">\n<div class=\"vc-unit-bar\"><button type=\"button\" class=\"vc-unit-btn vc-active\" data-system=\"metric\">Metric (mm, N&middot;m, MPa)<\/button><button type=\"button\" class=\"vc-unit-btn\" data-system=\"imperial\">Imperial (in, lbf&middot;ft, psi)<\/button><\/div>\n<form class=\"vc-form\" id=\"vc-form\" autocomplete=\"off\"><div class=\"vc-form-grid\">\n<div class=\"vc-field\"><label class=\"vc-label\" for=\"vc-sd\">Shaft Diameter <span class=\"vc-label-hint\" id=\"vc-sdu\">(mm)<\/span><\/label><input class=\"vc-input\" type=\"number\" id=\"vc-sd\" step=\"any\" min=\"6\" value=\"50\"><\/div>\n<div class=\"vc-field\"><label class=\"vc-label\" for=\"vc-torque\">Torque <span class=\"vc-label-hint\" id=\"vc-tu\">(N&middot;m)<\/span><\/label><input class=\"vc-input\" type=\"number\" id=\"vc-torque\" step=\"any\" min=\"0\" value=\"500\"><\/div>\n<div class=\"vc-field\"><label class=\"vc-label\" for=\"vc-kl\">Key Length <span class=\"vc-label-hint\" id=\"vc-klu\">(mm)<\/span><\/label><input class=\"vc-input\" type=\"number\" id=\"vc-kl\" step=\"any\" min=\"1\" value=\"60\"><\/div>\n<div class=\"vc-field\"><label class=\"vc-label\" for=\"vc-tau\">Allowable Shear <span class=\"vc-label-hint\">(MPa)<\/span><\/label><input class=\"vc-input\" type=\"number\" id=\"vc-tau\" step=\"any\" min=\"1\" value=\"60\"><\/div>\n<div class=\"vc-field\"><label class=\"vc-label\" for=\"vc-sig\">Allowable Bearing <span class=\"vc-label-hint\">(MPa)<\/span><\/label><input class=\"vc-input\" type=\"number\" id=\"vc-sig\" step=\"any\" min=\"1\" value=\"120\"><\/div>\n<\/div>\n<div class=\"vc-presets\"><div class=\"vc-presets-label\">Quick presets<\/div>\n<button type=\"button\" class=\"vc-preset-btn\" data-d=\"50\" data-t=\"500\" data-l=\"60\">d50 T500 L60<\/button>\n<button type=\"button\" class=\"vc-preset-btn\" data-d=\"30\" data-t=\"100\" data-l=\"40\">d30 T100 L40<\/button>\n<button type=\"button\" class=\"vc-preset-btn\" data-d=\"80\" data-t=\"2000\" data-l=\"100\">d80 T2000 L100<\/button>\n<\/div><\/form>\n<div class=\"vc-results\" id=\"vc-results\"><div class=\"vc-results-head\"><h2 class=\"vc-results-title\">Results<\/h2><button type=\"button\" class=\"vc-copy-btn\" id=\"vc-copy-btn\">Copy<\/button><\/div>\n<div class=\"vc-result-grid\">\n<div class=\"vc-rcard vc-rcard-primary\"><div class=\"vc-rcard-label\">Standard Key (w &times; h)<\/div><div class=\"vc-rcard-value\" id=\"vc-r-key\">&mdash;<\/div><\/div>\n<div class=\"vc-rcard\"><div class=\"vc-rcard-label\">Tangential Force<\/div><div class=\"vc-rcard-value\" id=\"vc-r-F\">&mdash;<\/div><\/div>\n<div class=\"vc-rcard\"><div class=\"vc-rcard-label\">Shear Stress<\/div><div class=\"vc-rcard-value\" id=\"vc-r-tau\">&mdash;<\/div><\/div>\n<div class=\"vc-rcard\"><div class=\"vc-rcard-label\">Bearing Stress<\/div><div class=\"vc-rcard-value\" id=\"vc-r-sig\">&mdash;<\/div><\/div>\n<div class=\"vc-rcard\"><div class=\"vc-rcard-label\">SF (Shear)<\/div><div class=\"vc-rcard-value\" id=\"vc-r-sfs\">&mdash;<\/div><\/div>\n<div class=\"vc-rcard\"><div class=\"vc-rcard-label\">SF (Bearing)<\/div><div class=\"vc-rcard-value\" id=\"vc-r-sfb\">&mdash;<\/div><\/div>\n<\/div>\n<div class=\"vc-viz\" id=\"vc-viz\" style=\"text-align:center;margin:16px 0 8px\"><\/div>\n<\/div><\/div>\n\n<div class=\"vc-section vc-open\"><button type=\"button\" class=\"vc-section-toggle\" aria-expanded=\"true\"><span class=\"vc-section-toggle-text\"><span class=\"vc-section-icon\">&#x1F4D8;<\/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>Tangential Force<\/h3><div class=\"vc-formula-box\" id=\"vc-katex-1\"><\/div>\n<h3>Shear Stress in Key<\/h3><div class=\"vc-formula-box\" id=\"vc-katex-2\"><\/div>\n<h3>Bearing Stress<\/h3><div class=\"vc-formula-box\" id=\"vc-katex-3\"><\/div>\n<h3>Standard Key Sizes (ISO 773 \/ DIN 6885)<\/h3>\n<table class=\"vc-table\"><thead><tr><th>Shaft d (mm)<\/th><th>Key w&times;h (mm)<\/th><\/tr><\/thead><tbody><tr><td>6&ndash;8<\/td><td>2&times;2<\/td><\/tr><tr><td>8&ndash;10<\/td><td>3&times;3<\/td><\/tr><tr><td>10&ndash;12<\/td><td>4&times;4<\/td><\/tr><tr><td>12&ndash;17<\/td><td>5&times;5<\/td><\/tr><tr><td>17&ndash;22<\/td><td>6&times;6<\/td><\/tr><tr><td>22&ndash;30<\/td><td>8&times;7<\/td><\/tr><tr><td>30&ndash;38<\/td><td>10&times;8<\/td><\/tr><tr><td>38&ndash;44<\/td><td>12&times;8<\/td><\/tr><tr><td>44&ndash;50<\/td><td>14&times;9<\/td><\/tr><tr><td>50&ndash;58<\/td><td>16&times;10<\/td><\/tr><tr><td>58&ndash;65<\/td><td>18&times;11<\/td><\/tr><tr><td>65&ndash;75<\/td><td>20&times;12<\/td><\/tr><tr><td>75&ndash;85<\/td><td>22&times;14<\/td><\/tr><tr><td>85&ndash;95<\/td><td>25&times;14<\/td><\/tr><\/tbody><\/table>\n<div class=\"vc-warning-box\"><p style=\"margin:0;font-size:14px;color:var(--vc-ink-secondary)\">Key length = 1&ndash;1.5&times; shaft diameter. Check stress concentrations at keyway corners (K<sub>t<\/sub>=1.5&ndash;2.5).<\/p><\/div>\n<\/div><\/div><\/div>\n\n<div class=\"vc-section\"><button type=\"button\" class=\"vc-section-toggle\" aria-expanded=\"false\"><span class=\"vc-section-toggle-text\"><span class=\"vc-section-icon\">&#x1F517;<\/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\/shaft-diameter-torsion\/\">Shaft Diameter<\/a>\n<a class=\"vc-related-link\" href=\"\/calculators\/press-fit-calculator\/\">Press Fit<\/a>\n<a class=\"vc-related-link\" href=\"\/calculators\/spline-connection-calculator\/\">Spline Connection<\/a>\n<a class=\"vc-related-link\" href=\"\/calculators\/shaft-deflection-calculator\/\">Shaft Deflection<\/a>\n<\/div><\/div><\/div><\/div>\n\n<div class=\"vc-section\"><button type=\"button\" class=\"vc-section-toggle\" aria-expanded=\"false\"><span class=\"vc-section-toggle-text\"><span class=\"vc-section-icon\">&#x2753;<\/span><span class=\"vc-section-title\">FAQ<\/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><\/div>\n\n<div class=\"vc-promo\"><div class=\"vc-promo-text\"><strong>Vibromera<\/strong> &mdash; Portable Balancing &amp; Vibration Analysis. 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>&copy; 2024&ndash;2025 <a href=\"https:\/\/vibromera.eu\/\">Vibromera<\/a><\/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<script src=\"https:\/\/cdn.jsdelivr.net\/npm\/katex@0.16.11\/dist\/katex.min.js\"><\/script>\n<script>\n(function(){\n'use strict';var SLUG='keyway-calculator',uS='metric';\nfunction $(id){return document.getElementById(id)}\nfunction fmt(n,d){if(isNaN(n)||!isFinite(n))return'\\u2014';return n.toFixed(d==null?2:d).replace(\/(\\.\\d*?)0+$\/,'$1').replace(\/\\.$\/,'')}\nvar KT=[[8,2,2],[10,3,3],[12,4,4],[17,5,5],[22,6,6],[30,8,7],[38,10,8],[44,12,8],[50,14,9],[58,16,10],[65,18,11],[75,20,12],[85,22,14],[95,25,14],[110,28,16],[130,32,18],[150,36,20],[170,40,22],[200,45,25]];\nfunction gK(d){for(var i=0;i<KT.length;i++){if(d<=KT[i][0])return{w:KT[i][1],h:KT[i][2]}}return{w:45,h:25}}\nfunction calc(){\n  var d=parseFloat($('vc-sd').value),T=parseFloat($('vc-torque').value),L=parseFloat($('vc-kl').value),tauA=parseFloat($('vc-tau').value),sigA=parseFloat($('vc-sig').value);\n  if(!d||d<6||!T||T<=0||!L||L<=0||!tauA||!sigA){$('vc-results').classList.remove('vc-visible');return}\n  var dmm=uS==='imperial'?d*25.4:d,Tmm=uS==='imperial'?T*1355.82:T*1000,Lmm=uS==='imperial'?L*25.4:L;\n  var key=gK(dmm),F=2*Tmm\/dmm,tauC=F\/(key.w*Lmm),sigC=F\/((key.h\/2)*Lmm);\n  var sfS=tauA\/tauC,sfB=sigA\/sigC;\n  $('vc-r-key').innerHTML=key.w+' &times; '+key.h+' <span class=\"vc-rcard-unit\">mm<\/span>';\n  if(uS==='imperial'){$('vc-r-F').innerHTML=fmt(F*0.224809,0)+' <span class=\"vc-rcard-unit\">lbf<\/span>';$('vc-r-tau').innerHTML=fmt(tauC*145.038,0)+' <span class=\"vc-rcard-unit\">psi<\/span>';$('vc-r-sig').innerHTML=fmt(sigC*145.038,0)+' <span class=\"vc-rcard-unit\">psi<\/span>'}\n  else{$('vc-r-F').innerHTML=fmt(F,0)+' <span class=\"vc-rcard-unit\">N<\/span>';$('vc-r-tau').innerHTML=fmt(tauC,1)+' <span class=\"vc-rcard-unit\">MPa<\/span>';$('vc-r-sig').innerHTML=fmt(sigC,1)+' <span class=\"vc-rcard-unit\">MPa<\/span>'}\n  $('vc-r-sfs').innerHTML=fmt(sfS,2)+(sfS<1?' <span style=\"color:var(--vc-red)\">FAIL<\/span>':' <span style=\"color:var(--vc-green)\">OK<\/span>');\n  $('vc-r-sfb').innerHTML=fmt(sfB,2)+(sfB<1?' <span style=\"color:var(--vc-red)\">FAIL<\/span>':' <span style=\"color:var(--vc-green)\">OK<\/span>');\n  $('vc-results').classList.add('vc-visible');\n  drawViz(dmm,key);\n  sH({d:d,T:T,L:L,_summary:'d='+d+' T='+T+' key='+key.w+'x'+key.h});\n}\nvar uB=document.querySelectorAll('.vc-unit-btn');uB.forEach(function(b){b.addEventListener('click',function(){uB.forEach(function(x){x.classList.remove('vc-active')});this.classList.add('vc-active');uS=this.getAttribute('data-system');$('vc-sdu').textContent=uS==='imperial'?'(in)':'(mm)';$('vc-tu').textContent=uS==='imperial'?'(lbf\\u00B7ft)':'(N\\u00B7m)';$('vc-klu').textContent=uS==='imperial'?'(in)':'(mm)';calc()})});\ndocument.querySelectorAll('.vc-preset-btn').forEach(function(b){b.addEventListener('click',function(e){e.preventDefault();$('vc-sd').value=this.getAttribute('data-d');$('vc-torque').value=this.getAttribute('data-t');$('vc-kl').value=this.getAttribute('data-l');calc()})});\n$('vc-form').addEventListener('input',calc);$('vc-form').addEventListener('change',calc);\n$('vc-copy-btn').addEventListener('click',function(){var t='Keyway Calculator\\nKey: '+$('vc-r-key').textContent+'\\nForce: '+$('vc-r-F').textContent+'\\nShear: '+$('vc-r-tau').textContent+'\\nBearing: '+$('vc-r-sig').textContent;if(navigator.clipboard){navigator.clipboard.writeText(t).then(function(){var b=$('vc-copy-btn');b.classList.add('vc-copied');b.textContent='Copied!';setTimeout(function(){b.classList.remove('vc-copied');b.textContent='Copy'},2000)})}});\ndocument.querySelectorAll('.vc-section-toggle').forEach(function(b){b.addEventListener('click',function(){var s=this.closest('.vc-section');s.classList.toggle('vc-open');this.setAttribute('aria-expanded',s.classList.contains('vc-open'))})});\nvar fD=[{q:'How is key size selected?',a:'<p>Standard lookup per shaft diameter from ISO 773\/DIN 6885 table.<\/p>'},{q:'What stresses are checked?',a:'<p>Shear: \\u03C4=F\/(w\\u00D7L). Bearing: \\u03C3=F\/((h\/2)\\u00D7L).<\/p>'},{q:'What key length to use?',a:'<p>1\\u20131.5\\u00D7 shaft diameter. Minimum = hub length minus chamfers.<\/p>'},{q:'Stress concentration at keyway?',a:'<p>K<sub>t<\/sub>=1.5\\u20132.5. End-milled keyways have better fatigue life.<\/p>'},{q:'Can I use two keys?',a:'<p>Yes at 180\\u00B0. Assume each carries 75% load due to tolerance.<\/p>'}];\nvar fL=$('vc-faq-list');fD.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>'});\nfL.addEventListener('click',function(e){var b=e.target.closest('.vc-faq-q');if(b)b.closest('.vc-faq-item').classList.toggle('vc-open')});\nfunction drawViz(diam,key){\n  var c=$('vc-viz'),W=260,H=260;\n  var svg='<svg width=\"'+W+'\" height=\"'+H+'\" viewBox=\"0 0 '+W+' '+H+'\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">';\n  var cx=W\/2,cy=H\/2,R=80;\n  \/\/ Shaft circle\n  svg+='<circle cx=\"'+cx+'\" cy=\"'+cy+'\" r=\"'+R+'\" fill=\"#d4e6f9\" stroke=\"#3578b2\" stroke-width=\"2\"\/>';\n  \/\/ Keyway slot (rectangle cut from top)\n  var kwW=R*key.w\/diam*2,kwH=R*key.h\/diam*2;\n  kwW=Math.max(12,Math.min(50,kwW));kwH=Math.max(8,Math.min(30,kwH));\n  var kwX=cx-kwW\/2,kwY=cy-R;\n  \/\/ Keyway cut (slightly inside circle)\n  svg+='<rect x=\"'+kwX+'\" y=\"'+kwY+'\" width=\"'+kwW+'\" height=\"'+kwH+'\" fill=\"#f4f1ec\" stroke=\"#7b8fa3\" stroke-width=\"1.5\"\/>';\n  \/\/ Key (in the slot)\n  svg+='<rect x=\"'+(kwX+1)+'\" y=\"'+(kwY+1)+'\" width=\"'+(kwW-2)+'\" height=\"'+(kwH-2)+'\" rx=\"1\" fill=\"#c85a2a\" opacity=\"0.4\" stroke=\"#c85a2a\" stroke-width=\"1\"\/>';\n  svg+='<text x=\"'+cx+'\" y=\"'+(kwY+kwH\/2+3)+'\" text-anchor=\"middle\" fill=\"#c85a2a\" font-size=\"9\" font-weight=\"600\">Key<\/text>';\n  \/\/ Dimension lines - width\n  svg+='<line x1=\"'+kwX+'\" y1=\"'+(kwY-8)+'\" x2=\"'+(kwX+kwW)+'\" y2=\"'+(kwY-8)+'\" stroke=\"#2c3e50\" stroke-width=\"0.8\"\/>';\n  svg+='<line x1=\"'+kwX+'\" y1=\"'+(kwY-12)+'\" x2=\"'+kwX+'\" y2=\"'+(kwY-4)+'\" stroke=\"#2c3e50\" stroke-width=\"0.8\"\/>';\n  svg+='<line x1=\"'+(kwX+kwW)+'\" y1=\"'+(kwY-12)+'\" x2=\"'+(kwX+kwW)+'\" y2=\"'+(kwY-4)+'\" stroke=\"#2c3e50\" stroke-width=\"0.8\"\/>';\n  svg+='<text x=\"'+cx+'\" y=\"'+(kwY-12)+'\" text-anchor=\"middle\" fill=\"#2c3e50\" font-size=\"9\">w='+key.w+'<\/text>';\n  \/\/ Dimension lines - height\n  svg+='<line x1=\"'+(kwX+kwW+8)+'\" y1=\"'+kwY+'\" x2=\"'+(kwX+kwW+8)+'\" y2=\"'+(kwY+kwH)+'\" stroke=\"#2c3e50\" stroke-width=\"0.8\"\/>';\n  svg+='<text x=\"'+(kwX+kwW+14)+'\" y=\"'+(kwY+kwH\/2+3)+'\" fill=\"#2c3e50\" font-size=\"9\">h='+key.h+'<\/text>';\n  \/\/ Shaft diameter\n  svg+='<line x1=\"'+(cx-R)+'\" y1=\"'+(cy+R+16)+'\" x2=\"'+(cx+R)+'\" y2=\"'+(cy+R+16)+'\" stroke=\"#3578b2\" stroke-width=\"0.8\"\/>';\n  svg+='<text x=\"'+cx+'\" y=\"'+(cy+R+28)+'\" text-anchor=\"middle\" fill=\"#3578b2\" font-size=\"10\" font-weight=\"600\">d = '+Math.round(diam)+' mm<\/text>';\n  \/\/ Center mark\n  svg+='<circle cx=\"'+cx+'\" cy=\"'+cy+'\" r=\"3\" fill=\"#3578b2\"\/>';\n  svg+='<\/svg>';\n  c.innerHTML=svg;\n}\nfunction sH(e){var k='vc_history_'+SLUG,a=[];try{a=JSON.parse(localStorage.getItem(k))||[]}catch(x){}e._ts=new Date().toISOString();a.unshift(e);if(a.length>10)a=a.slice(0,10);try{localStorage.setItem(k,JSON.stringify(a))}catch(x){}}\nfunction rF(){try{\nkatex.render('F=\\\\frac{2T}{d}',$('vc-katex-1'),{displayMode:true,throwOnError:false});\nkatex.render('\\\\tau=\\\\frac{F}{w \\\\cdot L}',$('vc-katex-2'),{displayMode:true,throwOnError:false});\nkatex.render('\\\\sigma=\\\\frac{F}{(h\/2) \\\\cdot L}',$('vc-katex-3'),{displayMode:true,throwOnError:false});\n}catch(e){}}\nrF();calc();\n})();\n<\/script>\n","protected":false},"excerpt":{"rendered":"<p>Kilespordesign i henhold til ISO 773. Angi akseldiameter og moment. Sl\u00e5 opp standard kilebredde og -h\u00f8yde, kontroller lager og skj\u00e6rspenning.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[],"tags":[],"class_list":["post-100142","calculator","type-calculator","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/nb\/wp-json\/wp\/v2\/calculator\/100142","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/nb\/wp-json\/wp\/v2\/calculator"}],"about":[{"href":"https:\/\/vibromera.eu\/nb\/wp-json\/wp\/v2\/types\/calculator"}],"version-history":[{"count":1,"href":"https:\/\/vibromera.eu\/nb\/wp-json\/wp\/v2\/calculator\/100142\/revisions"}],"predecessor-version":[{"id":100456,"href":"https:\/\/vibromera.eu\/nb\/wp-json\/wp\/v2\/calculator\/100142\/revisions\/100456"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/nb\/wp-json\/wp\/v2\/media?parent=100142"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/nb\/wp-json\/wp\/v2\/categories?post=100142"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/nb\/wp-json\/wp\/v2\/tags?post=100142"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}