{"id":100058,"date":"2026-02-15T20:09:45","date_gmt":"2026-02-15T20:09:45","guid":{"rendered":"https:\/\/vibromera.eu\/?post_type=calculator&#038;p=100058"},"modified":"2026-07-11T23:21:53","modified_gmt":"2026-07-11T23:21:53","slug":"component-temperature-limits","status":"publish","type":"calculator","link":"https:\/\/vibromera.eu\/th\/calculators\/component-temperature-limits\/","title":{"rendered":"Component Temperature Comparator | Sourced Limits Only"},"content":{"rendered":"\r\n<script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\",\"@type\":\"WebApplication\",\"name\":\"Sourced Temperature-Limit Comparator\",\"description\":\"Compare a measured temperature with user-supplied lower and\/or upper limits tied to an explicit product or standard source and measurement point.\",\"url\":\"https:\/\/vibromera.eu\/calculators\/component-temperature-limits\/\",\"applicationCategory\":\"Engineering Calculator\",\"operatingSystem\":\"Any\",\"offers\":{\"@type\":\"Offer\",\"price\":\"0\",\"priceCurrency\":\"EUR\"},\"creator\":{\"@type\":\"Organization\",\"name\":\"Vibromera\",\"url\":\"https:\/\/vibromera.eu\/\"},\"dateModified\":\"2026-07-12\",\"inLanguage\":\"en\",\"isAccessibleForFree\":true}<\/script>\r\n<script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Why are there no generic bearing, seal or lubricant limits?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Limits depend on exact product construction, compound, lubricant, medium, load, speed, duration and measurement location. 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padding:24px!important; }\r\n    .vc-copy-btn, .vc-section-chevron, .vc-faq-chevron, .vc-presets, .vc-promo { display:none!important; }\r\n}\r\n<\/style>\r\n<div class=\"vc-calculator\" id=\"vc-temperature\"><header class=\"vc-header\"><p class=\"vc-header-eyebrow\">Explicit sourced limits only<\/p><h1 class=\"vc-header-title\">Component Temperature-Limit Comparator<\/h1><p class=\"vc-header-subtitle\">Compare one measured temperature with applicable lower and\/or upper limits supplied from the exact product documentation or licensed standard. No generic material limit is selected by this page.<\/p><div class=\"vc-badges\"><span class=\"vc-badge\">No built-in limit table<\/span><span class=\"vc-badge\">Source required<\/span><span class=\"vc-badge\">No safety verdict<\/span><\/div><\/header>\r\n<div class=\"vc-card\"><form class=\"vc-form\" id=\"vc-form\" autocomplete=\"off\"><div class=\"vc-form-grid\"><div class=\"vc-field\"><label class=\"vc-label\" for=\"vc-unit\">Input temperature unit<\/label><select class=\"vc-select\" id=\"vc-unit\"><option value=\"c\">\u00b0C<\/option><option value=\"f\">\u00b0F<\/option><\/select><\/div><div class=\"vc-field\"><label class=\"vc-label\" for=\"vc-measured\">Measured temperature<\/label><input class=\"vc-input\" type=\"text\" id=\"vc-measured\" inputmode=\"decimal\"><\/div><div class=\"vc-field\"><label class=\"vc-label\" for=\"vc-lower\">Applicable lower limit <span class=\"vc-label-hint\">(optional)<\/span><\/label><input class=\"vc-input\" type=\"text\" id=\"vc-lower\" inputmode=\"decimal\"><\/div><div class=\"vc-field\"><label class=\"vc-label\" for=\"vc-upper\">Applicable upper limit <span class=\"vc-label-hint\">(optional)<\/span><\/label><input class=\"vc-input\" type=\"text\" id=\"vc-upper\" inputmode=\"decimal\"><\/div><div class=\"vc-field\"><label class=\"vc-label\" for=\"vc-source\">Limit source \/ product identifier<\/label><input class=\"vc-input\" type=\"text\" id=\"vc-source\" maxlength=\"160\" placeholder=\"OEM datasheet and revision, or standard clause\"><\/div><div class=\"vc-field\"><label class=\"vc-label\" for=\"vc-point\">Measurement point and method<\/label><input class=\"vc-input\" type=\"text\" id=\"vc-point\" maxlength=\"160\" placeholder=\"e.g. outer-ring thermocouple\"><\/div><\/div><p id=\"vc-error\" role=\"alert\" style=\"margin:.75rem 0 0;color:#b42318\"><\/p><div class=\"vc-warning-box\"><p style=\"margin:0\"><strong>Applicability gate:<\/strong> use limits for the exact component\/compound\/lubricant, medium, duty, load, speed, pressure, exposure duration and measurement definition. At least one bound, a traceable source and the actual measurement point\/method are required.<\/p><\/div><\/form>\r\n<div class=\"vc-results\" id=\"vc-results\"><div class=\"vc-results-head\"><h2 class=\"vc-results-title\">Numerical comparison<\/h2><button type=\"button\" class=\"vc-copy-btn\" id=\"vc-copy-btn\">Copy<\/button><\/div><div class=\"vc-result-grid\"><div class=\"vc-rcard vc-rcard-primary\"><div class=\"vc-rcard-label\">Position relative to supplied interval<\/div><div class=\"vc-rcard-value\" id=\"vc-r-status\">\u2014<\/div><\/div><div class=\"vc-rcard\"><div class=\"vc-rcard-label\">Measured temperature<\/div><div class=\"vc-rcard-value\" id=\"vc-r-measured\">\u2014<\/div><\/div><div class=\"vc-rcard\"><div class=\"vc-rcard-label\">Supplied limits<\/div><div class=\"vc-rcard-value\" id=\"vc-r-limits\">\u2014<\/div><\/div><div class=\"vc-rcard\"><div class=\"vc-rcard-label\">Margin to applicable bound(s)<\/div><div class=\"vc-rcard-value\" id=\"vc-r-margin\">\u2014<\/div><\/div><\/div><p id=\"vc-r-context\" style=\"margin:0;color:var(--vc-ink-secondary)\"><\/p><\/div><\/div>\r\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\">\ud83d\udcd8<\/span><span class=\"vc-section-title\">Why generic tables were removed<\/span><\/span><\/button><div class=\"vc-section-body\"><div class=\"vc-section-inner vc-theory\"><h3>Component and method dependence<\/h3><p>The removed page assigned one continuous\/short-term value to broad labels such as \u201cstandard bearing\u201d, NBR, FKM, PAO, lithium grease and insulation class, then declared an arbitrary green zone below 80%. Those values are not transferable across exact products and measurement definitions.<\/p><p>The <a href=\"https:\/\/www.skf.com\/binaries\/pub12\/Images\/0901d196802b0348-13459-EN-Rolling-bearings-and-seals-in-electric-motors-and-generators_tcm_12-134586.pdf\" target=\"_blank\" rel=\"noopener\">SKF motor\/generator bearing guide<\/a> states that operating temperature can be limited by cage, grease and sealing-lip material and that selection guidance cannot replace application testing. The <a href=\"https:\/\/www.parker.com\/content\/dam\/Parker-com\/Literature\/Praedifa\/Catalogs\/Catalog_O-Ring-Handbook_PTD5705-EN.pdf\" target=\"_blank\" rel=\"noopener\">Parker O-Ring Handbook<\/a> explains that temperature capability depends on compound formulation, medium, geometry, stress and time; even one polymer family can have different limits.<\/p><h3>Current motor standard<\/h3><p><a href=\"https:\/\/webstore.iec.ch\/en\/publication\/89961\" target=\"_blank\" rel=\"noopener\">IEC 60034-1:2026<\/a>, fifteenth edition, replaced IEC 60034-1:2022 in March 2026 and covers rating and performance of rotating electrical machines within its scope. A thermal class value is not automatically a measured housing-temperature alarm; machine rating, duty, coolant\/ambient, rise\/hotspot allowances and prescribed measurement method must be applied.<\/p><h3>Comparison only<\/h3><div class=\"vc-formula-box\">T<sub>\u00b0F<\/sub>=1.8T<sub>\u00b0C<\/sub>+32; &nbsp; T<sub>\u00b0C<\/sub>=(T<sub>\u00b0F<\/sub>\u221232)\/1.8<\/div><div class=\"vc-warning-box\"><p style=\"margin:0\"><strong>\u201cWithin supplied interval\u201d is not \u201csafe\u201d.<\/strong> Check uncertainty\/calibration, sensor attachment\/emissivity, thermal gradients and lag, transients, alarm delays, simultaneous pressure\/load\/speed\/media limits, trends, shutdown procedure and all OEM\/standard requirements. Never infer an internal raceway or winding hotspot from a fixed generic housing offset.<\/p><\/div><\/div><\/div><\/div>\r\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\">\u2753<\/span><span class=\"vc-section-title\">Frequently Asked Questions<\/span><\/span><\/button><div class=\"vc-section-body\"><div class=\"vc-section-inner\"><div class=\"vc-faq-list\" id=\"vc-faq-list\"><\/div><\/div><\/div><\/div><footer class=\"vc-footer\"><p>\u00a9 2024\u20132026 <a href=\"https:\/\/vibromera.eu\/\">Vibromera<\/a><\/p><p>Sourced-bound comparison only; no generic limit or safety classification. Scientific review: July 2026.<\/p><\/footer><\/div>\r\n<script>(function(){'use strict';function $(i){return document.getElementById(i)}function number(raw,optional){var s=String(raw).trim().replace(\/\\s+\/g,'');if(optional&&!s)return null;if(!\/^[+-]?(?:\\d+(?:[.,]\\d*)?|[.,]\\d+)$\/.test(s))return NaN;var n=Number(s.replace(',','.'));return Number.isFinite(n)?n:NaN}function c(v,u){return u==='f'?(v-32)\/1.8:v}function ftemp(v,u){var x=u==='f'?v*1.8+32:v;return x.toFixed(6).replace(\/(\\.\\d*?)0+$\/,'$1').replace(\/\\.$\/,'')+' \u00b0'+u.toUpperCase()}function delta(v,u){return (u==='f'?v*1.8:v).toFixed(6).replace(\/(\\.\\d*?)0+$\/,'$1').replace(\/\\.$\/,'')+' '+(u==='f'?'\u00b0F':'\u00b0C')}function calc(){var u=$('vc-unit').value,m0=number($('vc-measured').value,false),lo0=number($('vc-lower').value,true),hi0=number($('vc-upper').value,true),src=$('vc-source').value.trim(),pt=$('vc-point').value.trim();if(!Number.isFinite(m0)||(lo0!==null&&!Number.isFinite(lo0))||(hi0!==null&&!Number.isFinite(hi0))||(lo0===null&&hi0===null)||!src||!pt){$('vc-error').textContent=[$('vc-measured').value,$('vc-lower').value,$('vc-upper').value,src,pt].some(function(x){return String(x).trim()})?'Enter a finite measurement, at least one finite bound, source and measurement point\/method.':'';$('vc-results').classList.remove('vc-visible');return}var m=c(m0,u),lo=lo0===null?null:c(lo0,u),hi=hi0===null?null:c(hi0,u);if(lo!==null&&hi!==null&&lo>hi){$('vc-error').textContent='Lower limit must not exceed upper limit.';$('vc-results').classList.remove('vc-visible');return}$('vc-error').textContent='';var status=lo!==null&&m<lo?'BELOW SUPPLIED LOWER LIMIT':hi!==null&&m>hi?'ABOVE SUPPLIED UPPER LIMIT':'WITHIN SUPPLIED BOUND(S)',parts=[];if(lo!==null)parts.push('lower '+ftemp(lo,u));if(hi!==null)parts.push('upper '+ftemp(hi,u));var margins=[];if(lo!==null)margins.push(delta(m-lo,u)+' above lower');if(hi!==null)margins.push(delta(hi-m,u)+' below upper');$('vc-r-status').textContent=status;$('vc-r-measured').textContent=ftemp(m,u)+' \/ '+ftemp(m,u==='c'?'f':'c');$('vc-r-limits').textContent=parts.join('; ');$('vc-r-margin').textContent=margins.join('; ');$('vc-r-context').textContent='Source: '+src+' | Measurement: '+pt+' | Numerical comparison only\u2014not a safety verdict.';$('vc-results').classList.add('vc-visible');var q=new URL(location),v={temperature_unit:u,measured_temperature:m0,limit_source:src,measurement_point_method:pt};if(lo0===null)q.searchParams.delete('lower_limit');else v.lower_limit=lo0;if(hi0===null)q.searchParams.delete('upper_limit');else v.upper_limit=hi0;Object.keys(v).forEach(function(k){q.searchParams.set(k,v[k])});history.replaceState(null,'',q.toString())}$('vc-form').addEventListener('input',calc);$('vc-form').addEventListener('change',calc);$('vc-copy-btn').addEventListener('click',function(){if(navigator.clipboard)navigator.clipboard.writeText($('vc-results').innerText)});document.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'))})});var qa=[['Why is there no built-in NBR or bearing limit?','Material family is not a product specification. Exact compound, lubricant, medium, construction, duty and duration change the applicable range.'],['Does within the supplied bounds mean safe?','No. It is only an arithmetic comparison; uncertainty, transients, other limits and the complete procedure remain.'],['Can I infer an internal hotspot from a housing reading?','Not with a universal offset. Use the exact OEM\/standard measurement and thermal model for the machine or component.']];var l=$('vc-faq-list');qa.forEach(function(v){l.innerHTML+='<div class=\"vc-faq-item\"><button type=\"button\" class=\"vc-faq-q\">'+v[0]+'<\/button><div class=\"vc-faq-a\"><div class=\"vc-faq-a-inner\"><p>'+v[1]+'<\/p><\/div><\/div><\/div>'});l.addEventListener('click',function(e){var b=e.target.closest('.vc-faq-q');if(b)b.closest('.vc-faq-item').classList.toggle('vc-open')});var z=new URLSearchParams(location.search),map={temperature_unit:'vc-unit',measured_temperature:'vc-measured',lower_limit:'vc-lower',upper_limit:'vc-upper',limit_source:'vc-source',measurement_point_method:'vc-point'};Object.keys(map).forEach(function(k){if(z.has(k))$(map[k]).value=z.get(k)});calc()})();<\/script>\r\n","protected":false},"excerpt":{"rendered":"<p>Compare a measurement with explicit OEM or standard lower\/upper limits tied to a source and measurement point; no generic material table or safety verdict.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[],"tags":[],"class_list":["post-100058","calculator","type-calculator","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/th\/wp-json\/wp\/v2\/calculator\/100058","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/th\/wp-json\/wp\/v2\/calculator"}],"about":[{"href":"https:\/\/vibromera.eu\/th\/wp-json\/wp\/v2\/types\/calculator"}],"version-history":[{"count":2,"href":"https:\/\/vibromera.eu\/th\/wp-json\/wp\/v2\/calculator\/100058\/revisions"}],"predecessor-version":[{"id":102348,"href":"https:\/\/vibromera.eu\/th\/wp-json\/wp\/v2\/calculator\/100058\/revisions\/102348"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/th\/wp-json\/wp\/v2\/media?parent=100058"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/th\/wp-json\/wp\/v2\/categories?post=100058"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/th\/wp-json\/wp\/v2\/tags?post=100058"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}