{"id":100018,"date":"2026-02-15T20:06:18","date_gmt":"2026-02-15T20:06:18","guid":{"rendered":"https:\/\/vibromera.eu\/?post_type=calculator&#038;p=100018"},"modified":"2026-02-15T20:06:18","modified_gmt":"2026-02-15T20:06:18","slug":"bearing-grease-quantity","status":"publish","type":"calculator","link":"https:\/\/vibromera.eu\/nb\/calculators\/bearing-grease-quantity\/","title":{"rendered":"Kalkulator for mengde fett i lageret | G = 0,005 \u00d7 D \u00d7 B | Gratis nettverkt\u00f8y"},"content":{"rendered":"\n<script type=\"application\/ld+json\">\n{\"@context\":\"https:\/\/schema.org\",\"@type\":\"WebApplication\",\"name\":\"Bearing Grease Quantity Calculator\",\"alternateName\":[\"Grease Fill Calculator\",\"Bearing Lubrication Amount\"],\"description\":\"Free online calculator for bearing grease fill quantity using the formula G = 0.005 \u00d7 D \u00d7 B.\",\"url\":\"https:\/\/vibromera.eu\/calculators\/bearing-grease-quantity\/\",\"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\":[\"Grease quantity in grams\",\"Fill percentage guide\",\"Speed-based recommendations\",\"Auto-calculation\"],\"keywords\":\"grease quantity, bearing lubrication, grease fill\"}\n<\/script>\n\n<script type=\"application\/ld+json\">\n{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[\n{\"@type\":\"Question\",\"name\":\"How much grease should a bearing have?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The initial grease fill is typically calculated as G = 0.005 \u00d7 D \u00d7 B grams, where D is the bearing OD in mm and B is the width in mm. For regreasing, use 50% of this amount. Actual fill percentage depends on speed \u2014 30-50% of free space is common.\"}},\n{\"@type\":\"Question\",\"name\":\"What happens if I over-grease a bearing?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Over-greasing causes excessive churning, increased temperature, higher power consumption, and can lead to seal failure and grease leakage. At high speeds, over-greasing is more harmful than under-greasing.\"}},\n{\"@type\":\"Question\",\"name\":\"What fill percentage should I use?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"For low speed (n\u00d7dm < 100,000): 50-80% fill. For medium speed (100,000-300,000): 30-50%. For high speed (>300,000): 25-35%. Sealed bearings from the factory are typically 25-35% filled.\"}},\n{\"@type\":\"Question\",\"name\":\"How do I determine the grease volume for relubrication?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"For periodic relubrication, use approximately G_regrease = 0.005 \u00d7 D \u00d7 B \u00d7 0.5 grams. This delivers fresh grease to the contact areas without overfilling the bearing cavity.\"}},\n{\"@type\":\"Question\",\"name\":\"Does bearing type affect grease quantity?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes. Ball bearings have more internal free space than roller bearings of the same size. The formula G = 0.005 \u00d7 D \u00d7 B is a good approximation for all types, but the fill percentage should be adjusted based on bearing type and speed.\"}}\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\":\"Bearing Grease Quantity\",\"item\":\"https:\/\/vibromera.eu\/calculators\/bearing-grease-quantity\/\"}]}\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 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>\n: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-blue:#2a5c8c;--vc-blue-light:#eaf1f8;--vc-green:#2a7a4b;--vc-green-light:#eaf8ef;--vc-yellow:#a67c00;--vc-yellow-light:#fef9e8;--vc-red:#b91c1c;--vc-red-light:#fef2f2;--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}\n.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;-webkit-font-smoothing:antialiased}.vc-calculator *,.vc-calculator *::before,.vc-calculator *::after{box-sizing:border-box}\n.vc-header{text-align:center;padding:48px 24px 40px;position:relative}.vc-header::after{content:'';position:absolute;bottom:0;left:50%;transform:translateX(-50%);width:80px;height:3px;background:var(--vc-accent);border-radius:2px}.vc-header-eyebrow{font-family:var(--vc-mono);font-size:11px;font-weight:500;letter-spacing:.15em;text-transform:uppercase;color:var(--vc-accent);margin:0 0 12px}.vc-header-title{font-family:var(--vc-display);font-size:clamp(24px,4vw,36px);font-weight:800;line-height:1.15;color:var(--vc-ink);margin:0 0 16px;letter-spacing:-.02em}.vc-header-subtitle{font-size:15px;color:var(--vc-ink-secondary);margin:0 auto 20px;max-width:600px}.vc-badges{display:inline-flex;gap:8px;flex-wrap:wrap;justify-content:center}.vc-badge{font-family:var(--vc-mono);font-size:11px;font-weight:500;padding:4px 10px;border-radius:4px;background:var(--vc-surface);border:1px solid var(--vc-border);color:var(--vc-ink-secondary)}\n.vc-card{background:var(--vc-surface);border:1px solid var(--vc-border);border-radius:var(--vc-radius-lg);box-shadow:var(--vc-shadow);overflow:hidden;margin-top:32px}.vc-form{padding:24px}.vc-form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}@media(max-width:600px){.vc-form-grid{grid-template-columns:1fr}}.vc-field{display:flex;flex-direction:column}.vc-label{font-size:12px;font-weight:600;letter-spacing:.04em;text-transform:uppercase;color:var(--vc-ink-secondary);margin-bottom:6px}.vc-label-hint{font-weight:400;text-transform:none;letter-spacing:0;color:var(--vc-ink-muted);font-size:11px}.vc-select,.vc-input{width:100%;padding:10px 12px;border:1.5px solid var(--vc-border);border-radius:6px;font-family:var(--vc-font);font-size:14px;color:var(--vc-ink);background:var(--vc-surface);transition:border-color .15s,box-shadow .15s}.vc-select{padding-right:36px;appearance:none;-webkit-appearance:none;cursor:pointer;background-image:url(\"data:image\/svg+xml,%3Csvg xmlns='http:\/\/www.w3.org\/2000\/svg' width='16' height='16' fill='none' stroke='%235a5650' stroke-width='2'%3E%3Cpath d='M4 6l4 4 4-4'\/%3E%3C\/svg%3E\");background-repeat:no-repeat;background-position:right 10px center}.vc-select:focus,.vc-input:focus{outline:none;border-color:var(--vc-accent);box-shadow:0 0 0 3px rgba(200,90,42,.12)}.vc-select:hover,.vc-input:hover{border-color:var(--vc-ink-muted)}\n.vc-presets{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;padding-top:18px;border-top:1px solid var(--vc-border-light)}.vc-presets-label{font-family:var(--vc-mono);font-size:11px;font-weight:500;letter-spacing:.1em;text-transform:uppercase;color:var(--vc-ink-muted);width:100%;margin-bottom:2px}.vc-preset-btn{padding:5px 12px;font-family:var(--vc-font);font-size:12px;font-weight:500;border:1px solid var(--vc-border);border-radius:6px;background:var(--vc-surface-alt);color:var(--vc-ink-secondary);cursor:pointer;transition:all .15s}.vc-preset-btn:hover{border-color:var(--vc-accent);color:var(--vc-accent);background:var(--vc-accent-light)}\n.vc-results{border-top:1px solid var(--vc-border-light);background:var(--vc-surface-alt);padding:0;max-height:0;overflow:hidden;transition:max-height .5s cubic-bezier(.4,0,.2,1),padding .3s}.vc-results.vc-visible{max-height:2000px;padding:24px}.vc-results-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}.vc-results-title{font-family:var(--vc-display);font-size:20px;font-weight:700;color:var(--vc-ink);margin:0}.vc-copy-btn{display:inline-flex;align-items:center;gap:5px;padding:6px 12px;border:1px solid var(--vc-border);border-radius:6px;background:var(--vc-surface);font-family:var(--vc-font);font-size:12px;font-weight:500;color:var(--vc-ink-secondary);cursor:pointer;transition:all .15s}.vc-copy-btn:hover{border-color:var(--vc-accent);color:var(--vc-accent)}.vc-copy-btn.vc-copied{background:var(--vc-green-light);border-color:var(--vc-green);color:var(--vc-green)}\n.vc-result-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:20px}@media(max-width:500px){.vc-result-grid{grid-template-columns:1fr}}.vc-rcard{background:var(--vc-surface);border:1px solid var(--vc-border-light);border-radius:var(--vc-radius);padding:16px;transition:transform .2s}.vc-rcard:hover{transform:translateY(-1px)}.vc-rcard-primary{border-color:var(--vc-accent);border-width:2px;background:linear-gradient(135deg,#fdf6f2,var(--vc-surface));grid-column:1\/-1}.vc-rcard-label{font-family:var(--vc-mono);font-size:10px;font-weight:500;letter-spacing:.1em;text-transform:uppercase;color:var(--vc-ink-muted);margin-bottom:4px}.vc-rcard-value{font-family:var(--vc-mono);font-size:22px;font-weight:600;color:var(--vc-ink);line-height:1.2}.vc-rcard-primary .vc-rcard-value{font-size:30px;color:var(--vc-accent)}.vc-rcard-unit{font-size:14px;font-weight:400;color:var(--vc-ink-secondary)}\n.vc-section{margin-top:24px;border:1px solid var(--vc-border);border-radius:var(--vc-radius-lg);background:var(--vc-surface);box-shadow:var(--vc-shadow);overflow:hidden}.vc-section-toggle{width:100%;display:flex;align-items:center;justify-content:space-between;padding:18px 24px;border:none;background:transparent;cursor:pointer;font-family:var(--vc-font);text-align:left;transition:background .15s}.vc-section-toggle:hover{background:var(--vc-surface-alt)}.vc-section-toggle-text{display:flex;align-items:center;gap:10px}.vc-section-icon{font-size:20px;line-height:1}.vc-section-title{font-family:var(--vc-display);font-size:18px;font-weight:700;color:var(--vc-ink);margin:0}.vc-section-chevron{width:20px;height:20px;color:var(--vc-ink-muted);transition:transform .3s;flex-shrink:0}.vc-section.vc-open .vc-section-chevron{transform:rotate(180deg)}.vc-section-body{max-height:0;overflow:hidden;transition:max-height .4s cubic-bezier(.4,0,.2,1)}.vc-section.vc-open .vc-section-body{max-height:20000px}.vc-section-inner{padding:0 24px 24px;border-top:1px solid var(--vc-border-light)}\n.vc-theory h3{font-family:var(--vc-display);font-size:17px;font-weight:700;color:var(--vc-ink);margin:28px 0 10px}.vc-theory h3:first-child{margin-top:20px}.vc-theory p{font-size:14px;color:var(--vc-ink-secondary);margin:0 0 10px}.vc-theory ul{font-size:14px;color:var(--vc-ink-secondary);margin:0 0 12px 18px;padding:0}.vc-theory li{margin-bottom:5px}.vc-formula-box{background:var(--vc-surface-alt);border:2px solid var(--vc-border);border-radius:6px;padding:14px 20px;font-family:var(--vc-mono);font-size:16px;font-weight:500;text-align:center;margin:14px 0;color:var(--vc-ink);overflow-x:auto}.vc-info-box{background:var(--vc-blue-light);border-left:3px solid var(--vc-blue);padding:14px 16px;border-radius:0 6px 6px 0;margin:14px 0}.vc-info-box p{margin:0;font-size:14px;color:var(--vc-ink-secondary)}.vc-warning-box{background:var(--vc-yellow-light);border-left:3px solid var(--vc-yellow);padding:14px 16px;border-radius:0 6px 6px 0;margin:14px 0}.vc-example-box{background:var(--vc-surface-alt);border:1px solid var(--vc-border-light);border-radius:6px;padding:16px;margin:14px 0}.vc-example-title{font-family:var(--vc-mono);font-size:13px;font-weight:600;color:var(--vc-accent);margin-bottom:8px}.vc-table{width:100%;border-collapse:collapse;margin:14px 0;font-size:13px}.vc-table th,.vc-table td{padding:10px 12px;border:1px solid var(--vc-border-light);text-align:left}.vc-table th{background:var(--vc-surface-alt);font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:var(--vc-ink-secondary)}.vc-table tr:nth-child(even){background:var(--vc-surface-alt)}\n.vc-faq-list{display:flex;flex-direction:column;gap:8px;margin-top:20px}.vc-faq-item{border:1px solid var(--vc-border-light);border-radius:6px;overflow:hidden}.vc-faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 16px;border:none;background:var(--vc-surface-alt);cursor:pointer;font-family:var(--vc-font);font-size:15px;font-weight:600;color:var(--vc-ink);text-align:left;transition:background .15s}.vc-faq-q:hover{background:#ede9e3}.vc-faq-chevron{width:16px;height:16px;color:var(--vc-ink-muted);flex-shrink:0;transition:transform .25s}.vc-faq-item.vc-open .vc-faq-chevron{transform:rotate(180deg)}.vc-faq-a{max-height:0;overflow:hidden;transition:max-height .35s}.vc-faq-item.vc-open .vc-faq-a{max-height:1200px}.vc-faq-a-inner{padding:14px 16px;border-top:1px solid var(--vc-border-light);font-size:14px;color:var(--vc-ink-secondary)}.vc-faq-a-inner p{margin:0 0 8px}.vc-faq-a-inner p:last-child{margin-bottom:0}.vc-faq-a-inner ul{margin:4px 0 8px 16px;padding:0}.vc-faq-a-inner li{margin-bottom:3px}\n.vc-related{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}.vc-related-link{display:inline-block;padding:8px 16px;font-family:var(--vc-font);font-size:13px;font-weight:600;background:var(--vc-surface-alt);color:var(--vc-ink-secondary);border:1px solid var(--vc-border);border-radius:var(--vc-radius);text-decoration:none;transition:all .15s}.vc-related-link:hover{border-color:var(--vc-accent);color:var(--vc-accent);background:var(--vc-accent-light)}\n.vc-promo{margin-top:24px;padding:20px;background:linear-gradient(135deg,var(--vc-accent-light),var(--vc-surface));border:1px solid var(--vc-border);border-radius:var(--vc-radius-lg);display:flex;align-items:center;gap:16px}.vc-promo-text{flex:1;font-size:14px;color:var(--vc-ink-secondary)}.vc-promo-text 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\">\n<header class=\"vc-header\">\n    <p class=\"vc-header-eyebrow\">Free Engineering Tool #051<\/p>\n    <h1 class=\"vc-header-title\">Bearing Grease Quantity Calculator<\/h1>\n    <p class=\"vc-header-subtitle\">Calculate the recommended grease fill amount for rolling bearings. Formula: G = 0.005 \u00d7 D \u00d7 B. Enter bearing OD and width.<\/p>\n    <div class=\"vc-badges\"><span class=\"vc-badge\">G = 0.005 \u00d7 D \u00d7 B<\/span><span class=\"vc-badge\">Grams<\/span><span class=\"vc-badge\">Fill % Guide<\/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-od\">Bearing OD (D) <span class=\"vc-label-hint\">(mm)<\/span><\/label><input class=\"vc-input\" type=\"number\" id=\"vc-od\" inputmode=\"decimal\" step=\"any\" min=\"1\" placeholder=\"e.g. 80\" value=\"80\"><\/div>\n            <div class=\"vc-field\"><label class=\"vc-label\" for=\"vc-width\">Bearing Width (B) <span class=\"vc-label-hint\">(mm)<\/span><\/label><input class=\"vc-input\" type=\"number\" id=\"vc-width\" inputmode=\"decimal\" step=\"any\" min=\"1\" placeholder=\"e.g. 18\" value=\"18\"><\/div>\n            <div class=\"vc-field\"><label class=\"vc-label\" for=\"vc-fill\">Fill Percentage <span class=\"vc-label-hint\">(% of free space)<\/span><\/label>\n                <select class=\"vc-select\" id=\"vc-fill\">\n                    <option value=\"30\">30% \u2014 High speed<\/option>\n                    <option value=\"40\" selected>40% \u2014 Standard \/ medium speed<\/option>\n                    <option value=\"50\">50% \u2014 Low speed<\/option>\n                    <option value=\"70\">70% \u2014 Very low speed \/ sealed<\/option>\n                    <option value=\"100\">100% \u2014 Full fill (reference)<\/option>\n                <\/select>\n            <\/div>\n            <div class=\"vc-field\"><label class=\"vc-label\" for=\"vc-bore\">Bearing Bore (d) <span class=\"vc-label-hint\">(mm, optional \u2014 for n\u00d7dm)<\/span><\/label><input class=\"vc-input\" type=\"number\" id=\"vc-bore\" inputmode=\"decimal\" step=\"any\" min=\"0\" placeholder=\"e.g. 40\" value=\"40\"><\/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-od=\"52\" data-w=\"15\" data-b=\"25\">6205 (25\u00d752\u00d715)<\/button>\n            <button type=\"button\" class=\"vc-preset-btn\" data-od=\"80\" data-w=\"18\" data-b=\"40\">6208 (40\u00d780\u00d718)<\/button>\n            <button type=\"button\" class=\"vc-preset-btn\" data-od=\"110\" data-w=\"22\" data-b=\"50\">6310 (50\u00d7110\u00d722)<\/button>\n            <button type=\"button\" class=\"vc-preset-btn\" data-od=\"170\" data-w=\"39\" data-b=\"80\">22216 (80\u00d7170\u00d739)<\/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\">Grease Quantity (100% fill)<\/div><div class=\"vc-rcard-value\" id=\"vc-r-g100\">\u2014<\/div><\/div>\n            <div class=\"vc-rcard\"><div class=\"vc-rcard-label\">Adjusted Quantity (selected fill %)<\/div><div class=\"vc-rcard-value\" id=\"vc-r-gadj\">\u2014<\/div><\/div>\n            <div class=\"vc-rcard\"><div class=\"vc-rcard-label\">Regrease Amount (~50% of full)<\/div><div class=\"vc-rcard-value\" id=\"vc-r-regrease\">\u2014<\/div><\/div>\n            <div class=\"vc-rcard\"><div class=\"vc-rcard-label\">Volume (approx.)<\/div><div class=\"vc-rcard-value\" id=\"vc-r-vol\">\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>Grease Quantity Formula<\/h3>\n        <div class=\"vc-formula-box\" id=\"vc-katex-1\"><\/div>\n        <ul><li><strong>D<\/strong> \u2014 bearing outside diameter (mm)<\/li><li><strong>B<\/strong> \u2014 bearing width (mm)<\/li><li><strong>G<\/strong> \u2014 grease quantity (grams)<\/li><\/ul>\n        <h3>Fill Percentage Guide<\/h3>\n        <table class=\"vc-table\">\n            <thead><tr><th>n \u00d7 d<sub>m<\/sub><\/th><th>Speed Category<\/th><th>Recommended Fill<\/th><\/tr><\/thead>\n            <tbody>\n                <tr><td>&lt; 100,000<\/td><td>Low speed<\/td><td>50\u201380%<\/td><\/tr>\n                <tr><td>100,000 \u2013 300,000<\/td><td>Medium speed<\/td><td>30\u201350%<\/td><\/tr>\n                <tr><td>300,000 \u2013 500,000<\/td><td>High speed<\/td><td>25\u201335%<\/td><\/tr>\n                <tr><td>&gt; 500,000<\/td><td>Very high speed<\/td><td>20\u201330%<\/td><\/tr>\n            <\/tbody>\n        <\/table>\n        <h3>Practical Example<\/h3>\n        <div class=\"vc-example-box\">\n            <div class=\"vc-example-title\">Example \u2014 6208 Deep Groove Ball Bearing<\/div>\n            <p><strong>Given:<\/strong> D = 80 mm, B = 18 mm<\/p>\n            <p>G = 0.005 \u00d7 80 \u00d7 18 = <strong>7.2 grams<\/strong> (100% fill)<\/p>\n            <p>At 40% fill: 7.2 \u00d7 0.40 = <strong>2.9 grams<\/strong><\/p>\n            <p>Regrease: 7.2 \u00d7 0.50 = <strong>3.6 grams<\/strong><\/p>\n        <\/div>\n        <div class=\"vc-warning-box\"><p style=\"margin:0;font-size:14px;color:var(--vc-ink-secondary);\"><strong>\u26a0\ufe0f Note:<\/strong> Over-greasing is the #1 cause of grease-related bearing failures. When in doubt, use less grease and rely on proper relubrication intervals.<\/p><\/div>\n    <\/div><\/div>\n<\/div>\n\n<div class=\"vc-section\" id=\"vc-sec-related\"><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\/bearing-relubrication-interval\/\">Relubrication Interval<\/a>\n        <a class=\"vc-related-link\" href=\"\/calculators\/bearing-speed-factor\/\">Speed Factor n\u00d7dm<\/a>\n        <a class=\"vc-related-link\" href=\"\/calculators\/bearing-modified-life-l10a\/\">Bearing Life L10a<\/a>\n    <\/div><\/div><\/div>\n<\/div>\n\n<div class=\"vc-section\" id=\"vc-sec-faq\"><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 vibration analyzers for bearing condition monitoring. 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\u20132026 <a href=\"https:\/\/vibromera.eu\/\">Vibromera<\/a> \u2014 Engineering Calculators<\/p><p style=\"font-size:12px;margin-top:4px;\">Calculator #051. Last updated: February 2026<\/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';var SLUG='bearing-grease-quantity';\n    function $(id){return document.getElementById(id)}\n    function fmt(n,d){if(isNaN(n)||!isFinite(n))return'\u2014';return n.toFixed(d===undefined?1:d).replace(\/(\\.\\d*?)0+$\/,'$1').replace(\/\\.$\/,'')}\n\n    function calculate(){\n        var D=parseFloat($('vc-od').value),B=parseFloat($('vc-width').value),fill=parseFloat($('vc-fill').value)\/100;\n        if(!D||D<=0||!B||B<=0){$('vc-results').classList.remove('vc-visible');return;}\n        var G=0.005*D*B;\n        var Gadj=G*fill;\n        var Gregrease=G*0.5;\n        var vol=G\/0.9; \/\/ approx cm\u00b3 (grease density ~0.9 g\/cm\u00b3)\n        $('vc-r-g100').innerHTML=fmt(G,1)+' <span class=\"vc-rcard-unit\">grams<\/span>';\n        $('vc-r-gadj').innerHTML=fmt(Gadj,1)+' <span class=\"vc-rcard-unit\">g ('+Math.round(fill*100)+'%)<\/span>';\n        $('vc-r-regrease').innerHTML=fmt(Gregrease,1)+' <span class=\"vc-rcard-unit\">grams<\/span>';\n        $('vc-r-vol').innerHTML=fmt(vol,1)+' <span class=\"vc-rcard-unit\">cm\u00b3<\/span>';\n        $('vc-results').classList.add('vc-visible');\n        var u=new URL(window.location);u.searchParams.set('D',D);u.searchParams.set('B',B);history.replaceState(null,'',u.toString());\n        saveHistory({D:D,B:B,_summary:'D='+D+' B='+B+' \u2192 G='+fmt(G,1)+'g'});\n    }\n\n    document.querySelectorAll('.vc-preset-btn').forEach(function(btn){btn.addEventListener('click',function(e){e.preventDefault();$('vc-od').value=this.getAttribute('data-od');$('vc-width').value=this.getAttribute('data-w');$('vc-bore').value=this.getAttribute('data-b');calculate();});});\n    $('vc-form').addEventListener('input',calculate);$('vc-form').addEventListener('change',calculate);\n\n    $('vc-copy-btn').addEventListener('click',function(){var text='Bearing Grease Quantity\\n\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\\nOD = '+$('vc-od').value+' mm, Width = '+$('vc-width').value+' mm\\nG (100%) = '+$('vc-r-g100').textContent+'\\nAdjusted = '+$('vc-r-gadj').textContent+'\\nRegrease = '+$('vc-r-regrease').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';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    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 much grease should a bearing have?',a:'<p>Initial grease fill is calculated as G = 0.005 \u00d7 D \u00d7 B grams. For regreasing, use about 50% of this. Actual fill percentage depends on speed \u2014 30-50% of free space is common for normal applications.<\/p>'},\n        {q:'What happens if I over-grease a bearing?',a:'<p>Over-greasing causes excessive churning, increased temperature, higher power consumption, and can lead to seal failure and grease leakage. At high speeds, over-greasing is more harmful than under-greasing.<\/p>'},\n        {q:'What fill percentage should I use?',a:'<p>Low speed (n\u00d7dm < 100,000): 50-80%. Medium speed: 30-50%. High speed (>300,000): 25-35%. Factory-sealed bearings are typically 25-35% filled.<\/p>'},\n        {q:'How do I determine the regrease amount?',a:'<p>For periodic relubrication, use approximately 50% of the full fill quantity. This delivers fresh grease to the contact areas without overfilling.<\/p>'},\n        {q:'Does bearing type affect grease quantity?',a:'<p>Yes. Ball bearings have more internal free space than roller bearings. The formula G = 0.005 \u00d7 D \u00d7 B is a good approximation for all types, but adjust fill percentage for specific bearing type and speed.<\/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('G = 0.005 \\\\times D \\\\times B \\\\quad [\\\\text{grams}]',$('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>Gratis online kalkulator for fyllmengde for lagerfett. Formel G = 0,005 \u00d7 D \u00d7 B gir gram fett. Angi lagerets ytterdiameter og bredde. Viser veiledning for fyllingsprosent for forskjellige hastigheter.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[],"tags":[],"class_list":["post-100018","calculator","type-calculator","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/nb\/wp-json\/wp\/v2\/calculator\/100018","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\/100018\/revisions"}],"predecessor-version":[{"id":100331,"href":"https:\/\/vibromera.eu\/nb\/wp-json\/wp\/v2\/calculator\/100018\/revisions\/100331"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/nb\/wp-json\/wp\/v2\/media?parent=100018"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/nb\/wp-json\/wp\/v2\/categories?post=100018"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/nb\/wp-json\/wp\/v2\/tags?post=100018"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}