{"id":27166,"date":"2024-10-14T19:44:25","date_gmt":"2024-10-14T16:44:25","guid":{"rendered":"https:\/\/www.droplex.com\/ke\/?page_id=27166"},"modified":"2026-03-30T15:03:48","modified_gmt":"2026-03-30T12:03:48","slug":"grease-quantity-calculator","status":"publish","type":"page","link":"https:\/\/www.droplex.com\/ke\/technical-resources\/grease-quantity-calculator\/","title":{"rendered":"Grease Quantity Calculator\u200b"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"27166\" class=\"elementor elementor-27166\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-7c6999a elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"7c6999a\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-bb5707a\" data-id=\"bb5707a\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-f2805fa elementor-widget elementor-widget-text-editor\" data-id=\"f2805fa\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h1 style=\"padding-right: 40px; padding-left: 40px; font-style: normal; color: #1e4678;\"><span style=\"font-size: 42px; font-family: Montserrat;\"><strong>Bearing Grease Quantity &amp; Re-greasing Frequency Calculator.<\/strong><\/span><\/h1><p><span style=\"font-family: Montserrat; font-style: inherit; background-color: var(--ast-global-color-5);\">Optimize lubrication<\/span><span style=\"font-family: Montserrat; font-style: inherit; background-color: var(--ast-global-color-5);\">, <\/span><span style=\"font-family: Montserrat; font-style: inherit; background-color: var(--ast-global-color-5);\">m<\/span><span style=\"font-family: Montserrat; font-style: inherit; background-color: var(--ast-global-color-5);\">inimize grease waste<\/span><span style=\"font-family: Montserrat; font-style: inherit; background-color: var(--ast-global-color-5);\">, and <\/span><span style=\"font-family: Montserrat; letter-spacing: 0.01em; font-style: inherit;\"><span style=\"font-style: inherit; background-color: var(--ast-global-color-5);\">p<\/span><span style=\"font-style: inherit; background-color: var(--ast-global-color-5);\">revent premature bearing failures<\/span><\/span><span style=\"font-family: Montserrat; font-style: inherit; background-color: var(--ast-global-color-5);\">.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-550dbe2 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"550dbe2\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-1c88b1e\" data-id=\"1c88b1e\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-f1ea506 elementor-widget elementor-widget-html\" data-id=\"f1ea506\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<style>\n    .calculator {\n        max-width: 800px;\n        margin: auto;\n    }\n    .calculator h2 {\n        text-align: center;\n    }\n    .calculator .section {\n        margin-top: 20px;\n    }\n    .calculator .section h3 {\n        margin-bottom: 10px;\n    }\n    .calculator .input-group {\n        display: flex;\n        flex-wrap: wrap;\n        margin: -10px;\n    }\n    .calculator .input-group label {\n        flex: 1 1 50%;\n        box-sizing: border-box;\n        padding: 10px;\n    }\n    .calculator label {\n        font-weight: bold;\n    }\n    .calculator input, .calculator select {\n        width: 100%;\n        padding: 5px;\n        box-sizing: border-box;\n        margin-top: 5px;\n        background-color: #fff9c4; \/* Light yellow background *\/\n        border: 1px solid #ccc;\n        border-radius: 4px;\n    }\n    .calculator input:focus, .calculator select:focus {\n        background-color: #ffecb3; \/* Slightly darker yellow when focused *\/\n        outline: none;\n    }\n    .calculator .result {\n        margin-top: 20px;\n        font-weight: bold;\n    }\n    .calculator .result p {\n        margin: 5px 0;\n    }\n    .calculator .resultSize {\n        font-size: 30px;\n    }\n    \/* Media Query for Mobile Devices *\/\n    @media (max-width: 600px) {\n        .calculator .input-group label {\n            flex: 1 1 100%;\n        }\n    }\n<\/style>\n    \n    <div class=\"calculator\">\n        <div>\n            <h3>Enter your bearing dimensions & speed data<\/h3>\n            <div class=\"input-group\">\n                <label>\n                    Bearing Width (mm):\n                    <input type=\"number\" id=\"bearingWidth\" value=\"0\">\n                <\/label>\n                <label>\n                    Bearing Outer Diameter (mm):\n                    <input type=\"number\" id=\"bearingOuterDiameter\" value=\"0\">\n                <\/label>\n                <label>\n                    Shaft Diameter (mm):\n                    <input type=\"number\" id=\"shaftDiameter\" value=\"0\">\n                <\/label>\n                <label>\n                    Shaft Speed (RPM):\n                    <input type=\"number\" id=\"shaftSpeed\" value=\"0\">\n                <\/label>\n            <\/div>\n        <\/div>\n        <br \/>\n        <div>\n            <h3>Select bearing operating conditions<\/h3>\n                        <div class=\"input-group\">\n                <label>\n                    Type of Bearing:\n                    <select id=\"typeOfBearing\">\n                        <option value=\"10.0\">Ball<\/option>\n                        <option value=\"5.0\">Cylindrical\/Needle<\/option>\n                        <option value=\"1.0\">Tapered\/Spherical Roller<\/option>\n                        <option value=\"1.0\">Journal<\/option>\n                    <\/select>\n                <\/label>\n                <label>\n                    Housing Temperature:\n                    <select id=\"housingTemperature\">\n                        <option value=\"1.0\">51.7 \u00b0C<\/option>\n                        <option value=\"0.5\">51.7 \u00b0C to 65.6 \u00b0C<\/option>\n                        <option value=\"0.2\">65.6 \u00b0C to 79.4 \u00b0C<\/option>\n                        <option value=\"0.1\">79.4 \u00b0C to 93.3 \u00b0C<\/option>\n                    <\/select>\n                <\/label>\n                <label>\n                    Particle Contamination:\n                    <select id=\"particleContamination\">\n                        <option value=\"1.0\">Light, Non-Abrasive<\/option>\n                        <option value=\"0.7\">Heavy, Non-Abrasive<\/option>\n                        <option value=\"0.4\">Light, Abrasive<\/option>\n                        <option value=\"0.2\">Heavy, Abrasive<\/option>\n                    <\/select>\n                <\/label>\n                <label>\n                    Exposure to Moisture:\n                    <select id=\"exposureToMoisture\">\n                        <option value=\"1.0\">Humidity mostly below 80%<\/option>\n                        <option value=\"0.7\">Humidity between 80 - 90%<\/option>\n                        <option value=\"0.4\">Occasional condensation<\/option>\n                        <option value=\"0.1\">Occasional water on housing<\/option>\n                    <\/select>\n                <\/label>\n                <label>\n                    Vibration of the Housing:\n                    <select id=\"vibrationOfHousing\">\n                        <option value=\"1.0\">Less than 0.2 ips<\/option>\n                        <option value=\"0.6\">0.2 to 0.4 ips<\/option>\n                        <option value=\"0.3\">Above 0.4 ips<\/option>\n                    <\/select>\n                <\/label>\n                <label>\n                    Bearing Position:\n                    <select id=\"bearingPosition\">\n                        <option value=\"1.0\">Horizontal bore centerline<\/option>\n                        <option value=\"0.5\">45\u00b0 bore centerline<\/option>\n                        <option value=\"0.3\">Vertical centerline<\/option>\n                    <\/select>\n                <\/label>\n            <\/div>\n        <\/div>\n        <br \/>\n        <div class=\"notice\">\n            <p><i>Vibration: ips = inches\/sec (0.2 inches\/ sec = 5mm\/sec)<\/i><\/p>\n        <\/div>\n        <div class=\"result\">\n            <p>Grease Quantity: <span class=\"resultSize\"><span id=\"greaseQuantity\">-<\/span> grams<\/span><\/p>\n            <p>Re-Lubrication Frequency: <span class=\"resultSize\"><span id=\"reLubricationFrequency\">-<\/span> hours (<span id=\"reLubricationFrequencyDays\">-<\/span> days)<\/span><\/p>\n        <\/div>\n    <\/div>\n    <br \/><br \/><br \/>\n    \n    <script>\n        function calculate() {\n            var bearingWidth = parseFloat(document.getElementById('bearingWidth').value) || 0;\n            var bearingOuterDiameter = parseFloat(document.getElementById('bearingOuterDiameter').value) || 0;\n            var shaftDiameter = parseFloat(document.getElementById('shaftDiameter').value) || 0;\n            var shaftSpeed = parseFloat(document.getElementById('shaftSpeed').value) || 0;\n\n            var Fd = parseFloat(document.getElementById('typeOfBearing').value) || 1;\n            var Ct = parseFloat(document.getElementById('housingTemperature').value) || 1;\n            var Fc = parseFloat(document.getElementById('particleContamination').value) || 1;\n            var Fm = parseFloat(document.getElementById('exposureToMoisture').value) || 1;\n            var Fv = parseFloat(document.getElementById('vibrationOfHousing').value) || 1;\n            var Fp = parseFloat(document.getElementById('bearingPosition').value) || 1;\n\n            var K = Fd * Ct * Fc * Fm * Fv * Fp;\n\n            var greaseQuantity = bearingOuterDiameter * bearingWidth * 0.005;\n            greaseQuantity = greaseQuantity.toFixed(2);\n\n            var sqrtShaftDiameter = Math.sqrt(shaftDiameter);\n            var reLubricationFrequency = K * ((14000000 \/ (shaftSpeed * sqrtShaftDiameter)) - (4 * shaftDiameter));\n            reLubricationFrequency = reLubricationFrequency.toFixed(1);\n\n            var reLubricationFrequencyDays = (reLubricationFrequency \/ 24).toFixed(1);\n\n            if (isNaN(reLubricationFrequency) || !isFinite(reLubricationFrequency) || reLubricationFrequency < 0) {\n                reLubricationFrequency = \"-\";\n                reLubricationFrequencyDays = \"-\";\n            }\n\n            document.getElementById('greaseQuantity').textContent = greaseQuantity;\n            document.getElementById('reLubricationFrequency').textContent = reLubricationFrequency;\n            document.getElementById('reLubricationFrequencyDays').textContent = reLubricationFrequencyDays;\n        }\n\n        var inputs = document.querySelectorAll('input, select');\n        inputs.forEach(function(input) {\n            input.addEventListener('input', calculate);\n            input.addEventListener('change', calculate);\n        });\n\n        calculate();\n    <\/script>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-ac5feb7 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"ac5feb7\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-c0093f1\" data-id=\"c0093f1\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-0e6c328 elementor-widget elementor-widget-text-editor\" data-id=\"0e6c328\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h3><span style=\"font-size: 24px;\"><strong style=\"font-style: inherit; background-color: var(--ast-global-color-5);\">Understanding these results:<\/strong><\/span><\/h3><ol><li><strong>The correct grease is required<\/strong>: The grease quantity and frequency assume a suitable grease is being used. The wrong grease will not protect your bearings.<\/li><li><strong>Frequency of re-lubrication<\/strong>: The frequency result may suggest if switching to automated lubrication is a considerable and cost-effective option.<\/li><\/ol><p><span style=\"font-size: 20px;\"><strong>\u00a0<\/strong><\/span><\/p><h4><strong style=\"font-size: 24px; font-style: inherit; background-color: var(--ast-global-color-5);\">Cautionary Notes:<\/strong><\/h4><ul><li><p><strong>Usage of the calculator<\/strong>: Use this calculator only if OEM guidelines aren\u2019t available. Otherwise, if available, r<span style=\"font-style: inherit; font-weight: inherit; background-color: var(--ast-global-color-5);\">efer to equipment manuals for specific guidelines on lubricants and lubrication frequencies.<\/span><\/p><\/li><li><p><strong>Correct Grease &amp; Viscosity<\/strong>: Choose the right grease type and viscosity. The most suitable grease for the application depends on the thickener and the oil in the grease:\u00a0<\/p><ul><li><em>Calcium thickener<\/em>: Suitable for high-loads<\/li><li><em style=\"font-weight: inherit; background-color: var(--ast-global-color-5);\">Aluminum thickener<\/em><span style=\"font-style: inherit; font-weight: inherit; background-color: var(--ast-global-color-5);\">: Suitable for wet environments<\/span><\/li><li><em>Polyurea:<\/em>\u00a0High temperatures (above 160\u00b0C)<\/li><li><em>PTFE<\/em>: High temperatures (above 200\u00b0C)<\/li><li style=\"font-size: 17px;\"><i>High viscosity<\/i>: Suitable for high-loads<\/li><li><i>Low viscosity:<\/i>\u00a0Suitable for high-speeds<br \/><i><i>Any many more<\/i><\/i><p>\u00a0<\/p><\/li><\/ul><\/li><li><p><strong>Condition-Based Maintenance<\/strong>: Adapt re-greasing frequency based on the environment and bearing health.<\/p><\/li><li><p><strong>Quality Lubricants<\/strong>: Use only high-quality lubricants to prevent bearing damage. Speciality greases are developed to ensure the prevention of premature failure of bearings in different operating conditions.<\/p><\/li><li><p><strong>Prevent Contamination<\/strong>: Protect grease from contamination during storage and application. With contaminated grease, you essentially have a grinding paste.<\/p><\/li><li><p><strong>Training<\/strong>: Ensure personnel understand proper lubrication practices. Lubrication is a skill and training is available.\u00a0<\/p><\/li><\/ul><div><span style=\"font-family: Montserrat;\">For tailored grease recommendations or to find the optimal lubricant for your application, please\u00a0<\/span><a href=\"https:\/\/www.droplex.com\/ke\/contact\/\" target=\"_blank\" rel=\"noopener\">contact us<\/a><span style=\"font-family: Montserrat;\">.\u00a0<\/span><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d76a83b elementor-widget elementor-widget-spacer\" data-id=\"d76a83b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-d770c30 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"d770c30\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-155a556\" data-id=\"155a556\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-98a5801 elementor-tabs-view-horizontal elementor-widget elementor-widget-tabs\" data-id=\"98a5801\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"tabs.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-tabs\">\n\t\t\t<div class=\"elementor-tabs-wrapper\" role=\"tablist\" >\n\t\t\t\t\t\t\t\t\t<div id=\"elementor-tab-title-1601\" class=\"elementor-tab-title elementor-tab-desktop-title\" aria-selected=\"true\" data-tab=\"1\" role=\"tab\" tabindex=\"0\" aria-controls=\"elementor-tab-content-1601\" aria-expanded=\"false\">Calculator<\/div>\n\t\t\t\t\t\t\t\t\t<div id=\"elementor-tab-title-1602\" class=\"elementor-tab-title elementor-tab-desktop-title\" aria-selected=\"false\" data-tab=\"2\" role=\"tab\" tabindex=\"-1\" aria-controls=\"elementor-tab-content-1602\" aria-expanded=\"false\">Lubrication Guide<\/div>\n\t\t\t\t\t\t\t\t\t<div id=\"elementor-tab-title-1603\" class=\"elementor-tab-title elementor-tab-desktop-title\" aria-selected=\"false\" data-tab=\"3\" role=\"tab\" tabindex=\"-1\" aria-controls=\"elementor-tab-content-1603\" aria-expanded=\"false\">Cost Savings<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t<div class=\"elementor-tabs-content-wrapper\" role=\"tablist\" aria-orientation=\"vertical\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-tab-title elementor-tab-mobile-title\" aria-selected=\"true\" data-tab=\"1\" role=\"tab\" tabindex=\"0\" aria-controls=\"elementor-tab-content-1601\" aria-expanded=\"false\">Calculator<\/div>\n\t\t\t\t\t<div id=\"elementor-tab-content-1601\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"1\" role=\"tabpanel\" aria-labelledby=\"elementor-tab-title-1601\" tabindex=\"0\" hidden=\"false\"><style>\n    .calculator {\n        max-width: 800px;\n        margin: auto;\n    }\n    .calculator h2 {\n        text-align: center;\n    }\n    .calculator .section {\n        margin-top: 20px;\n    }\n    .calculator .section h3 {\n        margin-bottom: 10px;\n    }\n    .calculator .input-group {\n        display: flex;\n        flex-wrap: wrap;\n        margin: -10px;\n    }\n    .calculator .input-group label {\n        flex: 1 1 50%;\n        box-sizing: border-box;\n        padding: 10px;\n    }\n    .calculator label {\n        font-weight: bold;\n    }\n    .calculator input, .calculator select {\n        width: 100%;\n        padding: 5px;\n        box-sizing: border-box;\n        margin-top: 5px;\n        background-color: #fff9c4; \/* Light yellow background *\/\n        border: 1px solid #ccc;\n        border-radius: 4px;\n    }\n    .calculator input:focus, .calculator select:focus {\n        background-color: #ffecb3; \/* Slightly darker yellow when focused *\/\n        outline: none;\n    }\n    .calculator .result {\n        margin-top: 20px;\n        font-weight: bold;\n    }\n    .calculator .result p {\n        margin: 5px 0;\n    }\n    .calculator .resultSize {\n        font-size: 30px;\n    }\n    \/* Media Query for Mobile Devices *\/\n    @media (max-width: 600px) {\n        .calculator .input-group label {\n            flex: 1 1 100%;\n        }\n    }\n<\/style>\n    \n    <div class=\"calculator\">\n        <div>\n            <h3>Enter your bearing dimensions &#038; speed data<\/h3>\n            <div class=\"input-group\">\n                <label>\n                    Bearing Width (mm):\n                    <input type=\"number\" id=\"bearingWidth\" value=\"0\">\n                <\/label>\n                <label>\n                    Bearing Outer Diameter (mm):\n                    <input type=\"number\" id=\"bearingOuterDiameter\" value=\"0\">\n                <\/label>\n                <label>\n                    Shaft Diameter (mm):\n                    <input type=\"number\" id=\"shaftDiameter\" value=\"0\">\n                <\/label>\n                <label>\n                    Shaft Speed (RPM):\n                    <input type=\"number\" id=\"shaftSpeed\" value=\"0\">\n                <\/label>\n            <\/div>\n        <\/div>\n        <br \/>\n        <div>\n            <h3>Select bearing operating conditions<\/h3>\n                        <div class=\"input-group\">\n                <label>\n                    Type of Bearing:\n                    <select id=\"typeOfBearing\">\n                        <option value=\"10.0\">Ball<\/option>\n                        <option value=\"5.0\">Cylindrical\/Needle<\/option>\n                        <option value=\"1.0\">Tapered\/Spherical Roller<\/option>\n                        <option value=\"1.0\">Journal<\/option>\n                    <\/select>\n                <\/label>\n                <label>\n                    Housing Temperature:\n                    <select id=\"housingTemperature\">\n                        <option value=\"1.0\">51.7 \u00b0C<\/option>\n                        <option value=\"0.5\">51.7 \u00b0C to 65.6 \u00b0C<\/option>\n                        <option value=\"0.2\">65.6 \u00b0C to 79.4 \u00b0C<\/option>\n                        <option value=\"0.1\">79.4 \u00b0C to 93.3 \u00b0C<\/option>\n                    <\/select>\n                <\/label>\n                <label>\n                    Particle Contamination:\n                    <select id=\"particleContamination\">\n                        <option value=\"1.0\">Light, Non-Abrasive<\/option>\n                        <option value=\"0.7\">Heavy, Non-Abrasive<\/option>\n                        <option value=\"0.4\">Light, Abrasive<\/option>\n                        <option value=\"0.2\">Heavy, Abrasive<\/option>\n                    <\/select>\n                <\/label>\n                <label>\n                    Exposure to Moisture:\n                    <select id=\"exposureToMoisture\">\n                        <option value=\"1.0\">Humidity mostly below 80%<\/option>\n                        <option value=\"0.7\">Humidity between 80 &#8211; 90%<\/option>\n                        <option value=\"0.4\">Occasional condensation<\/option>\n                        <option value=\"0.1\">Occasional water on housing<\/option>\n                    <\/select>\n                <\/label>\n                <label>\n                    Vibration of the Housing:\n                    <select id=\"vibrationOfHousing\">\n                        <option value=\"1.0\">Less than 0.2 ips<\/option>\n                        <option value=\"0.6\">0.2 to 0.4 ips<\/option>\n                        <option value=\"0.3\">Above 0.4 ips<\/option>\n                    <\/select>\n                <\/label>\n                <label>\n                    Bearing Position:\n                    <select id=\"bearingPosition\">\n                        <option value=\"1.0\">Horizontal bore centerline<\/option>\n                        <option value=\"0.5\">45\u00b0 bore centerline<\/option>\n                        <option value=\"0.3\">Vertical centerline<\/option>\n                    <\/select>\n                <\/label>\n            <\/div>\n        <\/div>\n        <br \/>\n        <div class=\"notice\">\n            <p><i>Vibration: ips = inches\/sec (0.2 inches\/ sec = 5mm\/sec)<\/i><\/p>\n        <\/div>\n        <div class=\"result\">\n            <p>Grease Quantity: <span class=\"resultSize\"><span id=\"greaseQuantity\">&#8211;<\/span> grams<\/span><\/p>\n            <p>Re-Lubrication Frequency: <span class=\"resultSize\"><span id=\"reLubricationFrequency\">&#8211;<\/span> hours (<span id=\"reLubricationFrequencyDays\">&#8211;<\/span> days)<\/span><\/p>\n        <\/div>\n    <\/div>\n    <br \/><br \/><br \/>\n    \n    <script>\n        function calculate() {\n            var bearingWidth = parseFloat(document.getElementById('bearingWidth').value) || 0;\n            var bearingOuterDiameter = parseFloat(document.getElementById('bearingOuterDiameter').value) || 0;\n            var shaftDiameter = parseFloat(document.getElementById('shaftDiameter').value) || 0;\n            var shaftSpeed = parseFloat(document.getElementById('shaftSpeed').value) || 0;\n\n            var Fd = parseFloat(document.getElementById('typeOfBearing').value) || 1;\n            var Ct = parseFloat(document.getElementById('housingTemperature').value) || 1;\n            var Fc = parseFloat(document.getElementById('particleContamination').value) || 1;\n            var Fm = parseFloat(document.getElementById('exposureToMoisture').value) || 1;\n            var Fv = parseFloat(document.getElementById('vibrationOfHousing').value) || 1;\n            var Fp = parseFloat(document.getElementById('bearingPosition').value) || 1;\n\n            var K = Fd * Ct * Fc * Fm * Fv * Fp;\n\n            var greaseQuantity = bearingOuterDiameter * bearingWidth * 0.005;\n            greaseQuantity = greaseQuantity.toFixed(2);\n\n            var sqrtShaftDiameter = Math.sqrt(shaftDiameter);\n            var reLubricationFrequency = K * ((14000000 \/ (shaftSpeed * sqrtShaftDiameter)) - (4 * shaftDiameter));\n            reLubricationFrequency = reLubricationFrequency.toFixed(1);\n\n            var reLubricationFrequencyDays = (reLubricationFrequency \/ 24).toFixed(1);\n\n            if (isNaN(reLubricationFrequency) || !isFinite(reLubricationFrequency) || reLubricationFrequency < 0) {\n                reLubricationFrequency = \"-\";\n                reLubricationFrequencyDays = \"-\";\n            }\n\n            document.getElementById('greaseQuantity').textContent = greaseQuantity;\n            document.getElementById('reLubricationFrequency').textContent = reLubricationFrequency;\n            document.getElementById('reLubricationFrequencyDays').textContent = reLubricationFrequencyDays;\n        }\n\n        var inputs = document.querySelectorAll('input, select');\n        inputs.forEach(function(input) {\n            input.addEventListener('input', calculate);\n            input.addEventListener('change', calculate);\n        });\n\n        calculate();\n    <\/script><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-tab-title elementor-tab-mobile-title\" aria-selected=\"false\" data-tab=\"2\" role=\"tab\" tabindex=\"-1\" aria-controls=\"elementor-tab-content-1602\" aria-expanded=\"false\">Lubrication Guide<\/div>\n\t\t\t\t\t<div id=\"elementor-tab-content-1602\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"2\" role=\"tabpanel\" aria-labelledby=\"elementor-tab-title-1602\" tabindex=\"0\" hidden=\"hidden\"><h2 class=\"text-xl font-bold text-gray-800 mb-4\">Bearing Lubrication 101<\/h2><div class=\"mb-4\"><h3 class=\"font-bold text-lg text-gray-700 mb-2\">Importance of Proper Lubrication<\/h3><p class=\"text-gray-600\">Proper bearing lubrication is critical for equipment longevity and reliability. It reduces friction, prevents wear, dissipates heat, protects against corrosion, and forms a barrier against contaminants.<\/p><\/div><div class=\"mb-4\"><h3 class=\"font-bold text-lg text-gray-700 mb-2\">Common Greasing Mistakes<\/h3><div class=\"grid md:grid-cols-2 gap-4\"><div class=\"bg-red-50 p-3 rounded border border-red-200\"><p class=\"font-bold text-red-700\">Under-greasing<\/p><p class=\"text-gray-600 text-sm\">Leads to metal-to-metal contact, causing accelerated wear and premature failure.<\/p><\/div><div class=\"bg-red-50 p-3 rounded border border-red-200\"><p class=\"font-bold text-red-700\">Over-greasing<\/p><p class=\"text-gray-600 text-sm\">Causes churning, increased operating temperatures, and seal damage.<\/p><\/div><div class=\"bg-red-50 p-3 rounded border border-red-200\"><p class=\"font-bold text-red-700\">Incompatible Greases<\/p><p class=\"text-gray-600 text-sm\">Mixing incompatible thickeners can cause significant degradation of lubrication properties.<\/p><\/div><div class=\"bg-red-50 p-3 rounded border border-red-200\"><p class=\"font-bold text-red-700\">Contamination<\/p><p class=\"text-gray-600 text-sm\">Dirt and water turn lubricating grease into an abrasive paste that damages bearings.<\/p><\/div><\/div><\/div><div class=\"mb-4\"><h3 class=\"font-bold text-lg text-gray-700 mb-2\">Best Practices for Bearing Lubrication<\/h3><ul class=\"list-disc pl-5 text-gray-600\"><li>Clean fittings before applying grease<\/li><li>Apply grease when machinery is running (when safe)<\/li><li>Allow space for grease expansion (only fill bearing 30-50%)<\/li><li>Maintain accurate records of relubrication events<\/li><li>Use high-quality, properly stored grease<\/li><li>Train maintenance personnel on proper procedures<\/li><\/ul><\/div><div class=\"mb-4\"><h3 class=\"font-bold text-lg text-gray-700 mb-2\">Thickener Compatibility Chart<\/h3><p class=\"text-gray-600 mb-2\">Mixing incompatible greases can cause severe issues. Refer to this compatibility chart:<\/p><div class=\"bg-gray-50 p-3 rounded border text-sm text-gray-700\"><p><span class=\"font-bold\">Compatible combinations:<\/span>\u00a0Lithium &amp; Lithium Complex, Calcium &amp; Lithium<\/p><p><span class=\"font-bold\">Incompatible combinations:<\/span>\u00a0Polyurea &amp; Clay, Clay &amp; Lithium Complex, Calcium Complex &amp; Aluminum Complex<\/p><p class=\"text-xs mt-1\">For a complete compatibility chart, please download our full guide.<\/p><\/div><\/div><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-tab-title elementor-tab-mobile-title\" aria-selected=\"false\" data-tab=\"3\" role=\"tab\" tabindex=\"-1\" aria-controls=\"elementor-tab-content-1603\" aria-expanded=\"false\">Cost Savings<\/div>\n\t\t\t\t\t<div id=\"elementor-tab-content-1603\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"3\" role=\"tabpanel\" aria-labelledby=\"elementor-tab-title-1603\" tabindex=\"0\" hidden=\"hidden\"><h2 class=\"text-xl font-bold text-gray-800 mb-4\">Cost Savings Analysis<\/h2><div class=\"mb-6\"><h3 class=\"font-bold text-lg text-gray-700 mb-2\">The True Cost of Improper Lubrication<\/h3><p class=\"text-gray-600 mb-4\">Research shows that up to 40% of all bearing failures are directly related to improper lubrication practices. The financial impact extends far beyond the cost of a replacement bearing.<\/p><div class=\"bg-yellow-50 p-4 rounded-lg border border-yellow-200\"><h4 class=\"font-bold text-gray-700 mb-2\">Cost Components of Bearing Failure:<\/h4><ul class=\"list-disc pl-5 text-gray-600\"><li><span class=\"font-semibold\">Replacement parts cost<\/span>\u00a0($200-$2,000+ per bearing)<\/li><li><span class=\"font-semibold\">Labor costs<\/span>\u00a0for replacement (4-16 hours)<\/li><li><span class=\"font-semibold\">Production downtime<\/span>\u00a0($1,000-$10,000+ per hour)<\/li><li><span class=\"font-semibold\">Energy waste<\/span>\u00a0from increased friction before failure<\/li><li><span class=\"font-semibold\">Collateral damage<\/span>\u00a0to other components<\/li><\/ul><\/div><\/div><div class=\"mb-6\"><h3 class=\"font-bold text-lg text-gray-700 mb-2\">ROI of Proper Lubrication<\/h3><p class=\"text-gray-600 mb-4\">Implementing a proper lubrication program typically yields a 400% return on investment. Our calculator helps you quantify these benefits for your specific application.<\/p><div class=\"grid md:grid-cols-3 gap-4\"><div class=\"bg-green-50 p-3 rounded border border-green-200\"><p class=\"font-bold text-green-700\">Extended Bearing Life<\/p><p class=\"text-gray-600 text-sm\">Proper lubrication can extend bearing life by 2-3 times.<\/p><\/div><div class=\"bg-green-50 p-3 rounded border border-green-200\"><p class=\"font-bold text-green-700\">Reduced Energy Consumption<\/p><p class=\"text-gray-600 text-sm\">Proper lubrication can reduce energy consumption by 3-5%.<\/p><\/div><div class=\"bg-green-50 p-3 rounded border border-green-200\"><p class=\"font-bold text-green-700\">Decreased Maintenance Costs<\/p><p class=\"text-gray-600 text-sm\">Reduction in emergency repairs and scheduled maintenance.<\/p><\/div><\/div><\/div><div><button class=\"bg-blue-600 hover:bg-blue-700 text-white font-bold py-2 px-4 rounded\">Request Detailed ROI Analysis<\/button><\/div><\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Bearing Grease Quantity &amp; Re-greasing Frequency Calculator. Optimize lubrication, minimize grease waste, and prevent premature bearing failures. Enter your bearing dimensions &#038; speed data Bearing Width (mm): Bearing Outer Diameter (mm): Shaft Diameter (mm): Shaft Speed (RPM): Select bearing operating conditions Type of Bearing: BallCylindrical\/NeedleTapered\/Spherical RollerJournal Housing Temperature: 51.7 \u00b0C51.7 \u00b0C to 65.6 \u00b0C65.6 \u00b0C [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":27247,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"page-builder","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"disabled","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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Premium plugin v28.6 (Yoast SEO v28.7) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Bearing Grease Quantity &amp; Re-greasing Frequency Calculator | Droplex Industrial Kenya<\/title>\n<meta name=\"description\" content=\"Optimize your lubrication &amp; stop premature bearing failures with this easy-to-use bearing grease quantity &amp; re-greasing frequency calculator.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.droplex.com\/ke\/technical-resources\/grease-quantity-calculator\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Grease Quantity Calculator\u200b\" \/>\n<meta property=\"og:description\" content=\"Optimize your lubrication &amp; stop premature bearing failures with this easy-to-use bearing grease quantity &amp; re-greasing 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