{"id":2399,"date":"2026-06-26T05:07:52","date_gmt":"2026-06-26T05:07:52","guid":{"rendered":"https:\/\/helicalcutgears.top\/?p=2399"},"modified":"2026-06-26T05:07:52","modified_gmt":"2026-06-26T05:07:52","slug":"helical-gear-surface-failure-pitting-micropitting-scuffing","status":"publish","type":"post","link":"https:\/\/helicalcutgears.top\/sk\/helical-gear-surface-failure-pitting-micropitting-scuffing\/","title":{"rendered":"Porucha povrchu \u0161pir\u00e1lov\u00e9ho ozuben\u00e9ho kolesa \u2013 rozpoznanie a prevencia jamkovej tvorby, mikrojamkovej tvorby a oderu"},"content":{"rendered":"<div style=\"font-family: Arial,sans-serif; color: #2c3e50; max-width: 1100px; margin: 0 auto; padding: 0 2%; line-height: 1.75; word-break: break-word; overflow-wrap: break-word;\">\n<div style=\"position: relative; min-height: 330px; display: flex; align-items: center; background: url('https:\/\/helicalcutgears.top\/wp-content\/uploads\/2026\/04\/Carburized-Helical-Gear.webp') center\/cover no-repeat; border-radius: 8px; overflow: hidden; margin-bottom: 44px;\">\n<div style=\"position: absolute; inset: 0; background: linear-gradient(108deg,rgba(10,22,45,.91) 0%,rgba(10,22,45,.73) 55%,rgba(10,22,45,.25) 100%);\"><\/div>\n<div style=\"position: relative; z-index: 1; padding: clamp(28px,5%,54px); max-width: 640px;\">\n<h1 style=\"font-size: clamp(22px,3.8vw,40px); font-weight: 800; color: #fff; line-height: 1.18; margin: 0 0 14px;\">Porucha povrchu \u0161pir\u00e1lov\u00e9ho ozuben\u00e9ho kolesa \u2013 rozpoznanie a prevencia jamkovej tvorby, mikrojamkovej tvorby a oderu<\/h1>\n<p style=\"font-size: clamp(14px,2vw,17px); color: rgba(255,255,255,.83); line-height: 1.85; margin-bottom: 14px; margin: 0 0 22px;\">Tri odli\u0161n\u00e9 mechanizmy po\u0161kodenia povrchu ovplyv\u0148uj\u00fa boky zubov <strong>\u0161pir\u00e1lov\u00e9 ozuben\u00e9 koleso<\/strong> \u2014 jamkov\u00e1 tvorba, mikrojamkov\u00e1 tvorba a odieranie \u2014 a ka\u017ed\u00e9 z nich si vy\u017eaduje in\u00fa strat\u00e9giu prevencie. Ich z\u00e1mena vedie k nespr\u00e1vnemu z\u00e1sahu: aplik\u00e1cii oleja s vysok\u00fdm EP adit\u00edvom na <strong>\u0161pir\u00e1lov\u00e9 ozuben\u00e9 koleso<\/strong> s makropittingom z \u00fanavy povrchu (kde pr\u00edsady EP nepon\u00fakaj\u00fa \u017eiadny \u00fa\u017eitok) bez toho, aby sa dosiahla skuto\u010dn\u00e1 n\u00e1prava (prechod na tvrd\u0161\u00ed materi\u00e1l), alebo s aplik\u00e1ciou od\u013eah\u010denia hrotu na ozuben\u00e9 koleso s odieran\u00edm (ktor\u00e9 nerie\u0161i nadmern\u00fa teplotu vzplanutia, ktor\u00e1 sp\u00f4sobila odieranie). T\u00e1to pr\u00edru\u010dka rozli\u0161uje v\u0161etky tri pod\u013ea mechanizmu, vizu\u00e1lneho vzh\u013eadu, inicia\u010dn\u00e9ho stavu a spr\u00e1vnej met\u00f3dy prevencie.<\/p>\n<p><a style=\"display: inline-block; background: #e67e22; color: #fff; font-weight: bold; font-size: clamp(13px,1.8vw,15px); padding: 12px 26px; border-radius: 6px; text-decoration: none;\" href=\"#contact\">Odosla\u0165 vzorku zlyhania na anal\u00fdzu \u2192<\/a><\/p>\n<\/div>\n<\/div>\n<h2 style=\"font-size: clamp(18px,3vw,24px); color: #1a5276; border-bottom: 3px solid #e67e22; padding-bottom: 8px; margin: 40px 0 16px; font-weight: bold;\">Tri mechanizmy povrchov\u00e9ho po\u0161kodenia \u2013 preh\u013ead<\/h2>\n<div style=\"display: grid; grid-template-columns: repeat(auto-fit,minmax(240px,1fr)); gap: 14px; margin: 18px 0;\">\n<div style=\"border-radius: 8px; padding: 16px; background: #eaf6fb; border: 2px solid #1a5276;\">\n<p style=\"font-size: clamp(14px,1.9vw,16px); color: #1a5276; font-weight: 800; margin: 0 0 8px;\">Makropitovanie (\u00fanava valiv\u00e9ho kontaktu)<\/p>\n<p style=\"font-size: clamp(13px,1.7vw,14px); color: #2c3e50; line-height: 1.70; margin: 0;\"><strong>Mechanizmus:<\/strong> Cyklick\u00e9 Hertzovo kontaktn\u00e9 nap\u00e4tie prekra\u010duje medzu \u00fanosnosti materi\u00e1lu. \u00danavov\u00e1 trhlina vznik\u00e1 na povrchu alebo v jeho bl\u00edzkosti a \u0161\u00edri sa, k\u00fdm sa fragment nevyl\u00fapi. <strong>\u010casov\u00fd harmonogram:<\/strong> vyv\u00edja sa po\u010das 10\u2076\u201310\u2079 za\u0165a\u017eovac\u00edch cyklov \u2013 vyd\u00e1va varovanie pred katastrofick\u00fdm zlyhan\u00edm. <strong>Rozhoduj\u00faca podmienka:<\/strong> \u03c3_H &gt; \u03c3_H lim (medza odolnosti materi\u00e1lu).<\/p>\n<\/div>\n<div style=\"border-radius: 8px; padding: 16px; background: #f0fff4; border: 2px solid #1a7847;\">\n<p style=\"font-size: clamp(14px,1.9vw,16px); color: #1a7847; font-weight: 800; margin: 0 0 8px;\">Mikroskopick\u00e9 farbenie (siv\u00e9 farbenie)<\/p>\n<p style=\"font-size: clamp(13px,1.7vw,14px); color: #2c3e50; line-height: 1.70; margin: 0;\"><strong>Mechanizmus:<\/strong> Ve\u013emi plytk\u00e9 \u00fanavov\u00e9 trhliny (h\u013abka 10 \u2013 100 \u00b5m) v kontaktn\u00fdch z\u00f3nach drsnosti na povrchu boku zuba. Vytv\u00e1raj\u00fa siv\u00fd, matn\u00fd vzh\u013ead vidite\u013en\u00fd vo\u013en\u00fdm okom. <strong>\u010casov\u00fd harmonogram:<\/strong> vyv\u00edja sa po\u010das 10\u2077\u201310\u00b9\u2070 cyklov \u2013 pomal\u0161ie ako inici\u00e1cia makropittingu, ale m\u00f4\u017ee vies\u0165 k makropittingu. <strong>Rozhoduj\u00faca podmienka:<\/strong> \u0161pecifick\u00fd pomer filmu \u03bb &lt; 2,0.<\/p>\n<\/div>\n<div style=\"border-radius: 8px; padding: 16px; background: #fef0f0; border: 2px solid #c0392b;\">\n<p style=\"font-size: clamp(14px,1.9vw,16px); color: #c0392b; font-weight: 800; margin: 0 0 8px;\">Oder (opotrebovanie lepidlom)<\/p>\n<p style=\"font-size: clamp(13px,1.7vw,14px); color: #2c3e50; line-height: 1.70; margin: 0;\"><strong>Mechanizmus:<\/strong> Okam\u017eit\u00e9 adh\u00e9zne opotrebenie, ke\u010f teploty drsnosti kr\u00e1tkodobo prekro\u010dia teplotu kolapsu mazacieho filmu. Kontakt kovu na kov pren\u00e1\u0161a materi\u00e1l z jedn\u00e9ho boku zuba na druh\u00fd. <strong>\u010casov\u00fd harmonogram:<\/strong> m\u00f4\u017ee d\u00f4js\u0165 po\u010das PRV\u00c9HO kontaktn\u00e9ho cyklu za extr\u00e9mnych podmienok. <strong>Rozhoduj\u00faca podmienka:<\/strong> teplota z\u00e1blesku T_flash &gt; teplota oderu T_scuff.<\/p>\n<\/div>\n<\/div>\n<h2 style=\"font-size: clamp(18px,3vw,24px); color: #1a5276; border-bottom: 3px solid #e67e22; padding-bottom: 8px; margin: 40px 0 16px; font-weight: bold;\">Jamkov\u00e1 tvorba \u2013 mechanizmus, vizu\u00e1lna diagnostika a prevencia<\/h2>\n<h3 style=\"font-size: clamp(15px,2.5vw,19px); color: #2c3e50; border-left: 4px solid #1a5276; padding-left: 10px; margin: 24px 0 10px; font-weight: bold;\">Ako vznik\u00e1 makrojamkov\u00e1 tvorba v \u0161pir\u00e1lov\u00fdch ozuben\u00fdch koles\u00e1ch<\/h3>\n<p style=\"font-size: clamp(14px,2vw,17px); color: #2c3e50; line-height: 1.85; margin-bottom: 14px;\">Kontaktn\u00e9 \u00fanavov\u00e9 jamkovanie v <strong>\u0161pir\u00e1lov\u00e9 ozuben\u00e9 koleso<\/strong> za\u010d\u00edna v mieste maxim\u00e1lneho Hertzovho \u0161mykov\u00e9ho nap\u00e4tia \u2013 bu\u010f na povrchu boku zuba (povrchovo iniciovan\u00e9 jamkov\u00e9 nap\u00e4tie, be\u017enej\u0161ie v podmienkach hrani\u010dn\u00e9ho mazania), alebo tesne pod povrchom v h\u013abke maxim\u00e1lneho ortogon\u00e1lneho \u0161mykov\u00e9ho nap\u00e4tia (podpovrchovo iniciovan\u00e9 jamkov\u00e9 nap\u00e4tie, be\u017enej\u0161ie v dobre mazan\u00fdch ozuben\u00fdch koles\u00e1ch s vysok\u00fdm kontaktn\u00fdm nap\u00e4t\u00edm). Vrchol Hertzovho \u0161mykov\u00e9ho nap\u00e4tia v h\u013abke z\u2080 = 0,786 \u00d7 b_H (kde b_H je Hertzova polovi\u010dn\u00e1 \u0161\u00edrka kontaktu) je pribli\u017ene 0,30 \u00d7 \u03c3_H_max \u2013 a v tejto h\u013abke dosahuje cyklick\u00e9 zvr\u00e1tenie nap\u00e4tia \u00b10,30 \u00d7 \u03c3_H_max s ka\u017ed\u00fdm kontaktom zuba, pri\u010dom sa hromad\u00ed \u00fanavov\u00e9 po\u0161kodenie, a\u017e k\u00fdm sa trhlina neza\u010dne a ne\u0161\u00edri na povrch.<\/p>\n<p style=\"font-size: clamp(14px,2vw,17px); color: #2c3e50; line-height: 1.85; margin-bottom: 14px;\">H\u013abka inici\u00e1cie podpovrchovej jamkovej tvorby z\u2080 je d\u00f4le\u017eit\u00e1 pre \u0161pecifik\u00e1ciu h\u013abky puzdra: ak je ECD h\u013abky puzdra men\u0161ia ako z\u2080, vrchol Hertzovho nap\u00e4tia klesne pod puzdro v relat\u00edvne m\u00e4kkom jadrovom materi\u00e1li, \u010d\u00edm sa iniciuje hlbok\u00e9 poru\u0161enie puzdra drven\u00edm, a nie povrchov\u00e1 jamkov\u00e1 tvorba. Po\u017eiadavka spolo\u010dnosti Korea Ever-Power na h\u013abku puzdra pre <strong>\u0161pir\u00e1lov\u00e9 ozuben\u00e9 koles\u00e1<\/strong> (ECD \u2265 0,15\u20130,20 \u00d7 Mn) zabezpe\u010duje, \u017ee puzdro presahuje maxim\u00e1lnu h\u013abku Hertzovho nap\u00e4tia pre \u0161tandardn\u00e9 kontaktn\u00e9 nap\u00e4tia zubov (h\u013abku puzdra a podrobnosti pod\u013ea normy ISO 6336 n\u00e1jdete v \u010dl\u00e1nku 53 a \u010dl\u00e1nku 52).<\/p>\n<h3 style=\"font-size: clamp(15px,2.5vw,19px); color: #2c3e50; border-left: 4px solid #1a5276; padding-left: 10px; margin: 24px 0 10px; font-weight: bold;\">Vizu\u00e1lny vzh\u013ead jamkovej kry\u0161t\u00e1likov<\/h3>\n<p style=\"font-size: clamp(14px,2vw,17px); color: #2c3e50; line-height: 1.85; margin-bottom: 14px;\">Makrozohnit\u00e9 kr\u00e1tery na <strong>\u0161pir\u00e1lov\u00e9 ozuben\u00e9 koleso<\/strong> boky zuba vyzeraj\u00fa ako:<\/p>\n<ul style=\"padding-left: 20px; margin: 0 0 16px; font-size: clamp(14px,2vw,17px); color: #2c3e50; line-height: 1.9;\">\n<li style=\"margin-bottom: 7px;\"><strong>Poloha:<\/strong> Koncentrovan\u00e9 v bl\u00edzkosti rozstupovej \u010diary, kde je klzn\u00e1 r\u00fdchlos\u0165 nulov\u00e1 a vrstva EHL je najten\u0161ia pre dan\u00e9 kontaktn\u00e9 nap\u00e4tie. Na pastorku (ktor\u00fd zaznamen\u00e1va viac cyklov \u00fanavy za jednotku \u010dasu) sa jamkov\u00e1 tvorba zvy\u010dajne objav\u00ed ako prv\u00e1.<\/li>\n<li style=\"margin-bottom: 7px;\"><strong>Tvar:<\/strong> Zhruba polkruhov\u00e9 alebo vej\u00e1rovit\u00e9 kr\u00e1tery s priemerom 0,5 \u2013 5 mm s hladk\u00fdm, le\u0161ten\u00fdm vn\u00fatorn\u00fdm povrchom (odlomen\u00fd fragment zanechal \u010dist\u00fd lomov\u00fd povrch).<\/li>\n<li style=\"margin-bottom: 0;\"><strong>Postup:<\/strong> Po\u010diato\u010dn\u00e9 jamky s\u00fa izolovan\u00e9 a mal\u00e9. S postupuj\u00facou \u00fanavou sa jamky sp\u00e1jaj\u00fa do v\u00e4\u010d\u0161\u00edch kr\u00e1terov (odlupovanie) a nakoniec s\u00favisle pokr\u00fdvaj\u00fa rozstupov\u00fa \u010diaru \u2013 v tomto bode je ozuben\u00e9 koleso jednozna\u010dne v pokro\u010dilom \u0161t\u00e1diu zlyhania a generuje charakteristick\u00fd r\u00e1zov\u00fd hluk pri rota\u010dnej frekvencii.<\/li>\n<\/ul>\n<h3 style=\"font-size: clamp(15px,2.5vw,19px); color: #2c3e50; border-left: 4px solid #1a5276; padding-left: 10px; margin: 24px 0 10px; font-weight: bold;\">Pomer filmu EHL \u03bb a prevencia jamkovej tvorby<\/h3>\n<p style=\"font-size: clamp(14px,2vw,17px); color: #2c3e50; line-height: 1.85; margin-bottom: 14px;\">\u0160pecifick\u00fd pomer hr\u00fabky filmu \u03bb ur\u010duje inici\u00e1ciu jamkovej erupcie v <strong>\u0161pir\u00e1lov\u00e9 ozuben\u00e9 koleso<\/strong>:<\/p>\n<p style=\"padding: 10px 16px; background: #f0f8ff; border-left: 4px solid #2980b9; border-radius: 0 6px 6px 0; font-family: 'Courier New',monospace; font-size: clamp(13px,1.8vw,15px); margin: 12px 0;\">\u03bb \u2265 2,0: Pln\u00e1 EHL vrstva \u2013 nerovnosti sa nedot\u00fdkaj\u00fa; iba podpovrchov\u00e1 jamkov\u00e1 tvorba z objemov\u00e9ho Hertzovho nap\u00e4tia<br \/>\n\u03bb = 1,0\u20132,0: Zmie\u0161an\u00e9 mazanie \u2013 ob\u010dasn\u00fd kontakt s drsnos\u0165ou; mo\u017en\u00e9 jamkov\u00e9 mazanie na povrchu aj pod povrchom<br \/>\n\u03bb &lt; 1,0: Hrani\u010dn\u00e9 mazanie \u2013 \u010dast\u00fd kontakt s drsnos\u0165ou; zr\u00fdchlen\u00e1 jamkov\u00e1 tvorba iniciovan\u00e1 povrchom<\/p>\n<p>h_min \u2248 2,65 \u00d7 \u03b7\u2080^0,7 \u00d7 v^0,68 \u00d7 R^0,46 \/ (E'^0,53 \u00d7 w^0,13) [zjednodu\u0161en\u00fd Hamrock-Dowsonov model]<br \/>\nkde: \u03b7\u2080 = dynamick\u00e1 viskozita oleja na vstupe [Pa\u00b7s]<br \/>\nv = r\u00fdchlos\u0165 na \u010diare sklonu [m\/s]<br \/>\nR = ekvivalentn\u00fd polomer zakrivenia [mm]<br \/>\nw = norm\u00e1lov\u00e9 kontaktn\u00e9 za\u0165a\u017eenie na jednotku \u0161\u00edrky [N\/mm]<\/p>\n<p>Na zlep\u0161enie \u03bb: \u2191 stupe\u0148 viskozity oleja | \u2191 r\u00fdchlos\u0165 na osi rozstupu ozuben\u00fdch kolies (v\u00e4\u010d\u0161\u00ed prevodov\u00fd stupe\u0148) | \u2191 kontaktn\u00fd polomer (v\u00e4\u010d\u0161\u00ed modul)<br \/>\n| \u2193 drsnos\u0165 povrchu Ra (br\u00fasenie + ISF) | pou\u017eite syntetick\u00fd PAO s ni\u017e\u0161\u00edm koeficientom trakcie<\/p>\n<h2 style=\"font-size: clamp(18px,3vw,24px); color: #1a5276; border-bottom: 3px solid #e67e22; padding-bottom: 8px; margin: 40px 0 16px; font-weight: bold;\">Mikropitting \u2013 re\u017eim vysokocyklov\u00e9ho povrchov\u00e9ho poru\u0161enia<\/h2>\n<p><img decoding=\"async\" style=\"max-width: 560px; height: auto; display: block; margin: 22px auto; border-radius: 6px; box-shadow: 0 3px 12px rgba(0,0,0,.10);\" src=\"https:\/\/helicalcutgears.top\/wp-content\/uploads\/2026\/04\/helical-gear-workshop-3.webp\" alt=\"bok zuba \u0161pir\u00e1lov\u00e9ho ozuben\u00e9ho kolesa vykazuj\u00faci siv\u00e9 zafarbenie v podobe mikro-jamiek sp\u00f4soben\u00e9 \u0161pecifick\u00fdm pomerom filmu EHL pod 2,0, odl\u00ed\u0161ite\u013en\u00e9 od makro-jamiek siv\u00fdm matn\u00fdm vzh\u013eadom a ve\u013emi jemnou mierkou v porovnan\u00ed s makro-jamkami hladk\u00e9ho kr\u00e1tera\" \/><\/p>\n<p style=\"font-size: 12.5px; color: #7f8c8d; text-align: center; margin: -14px 0 24px; font-style: italic;\">Mikrodr\u00e1\u017ekovanie na <strong>\u0161pir\u00e1lov\u00e9 ozuben\u00e9 koleso<\/strong> bok zuba \u2013 siv\u00fd, matn\u00fd vzh\u013ead (\u201esiv\u00e9 zafarbenie\u201c) je v\u00fdsledkom tis\u00edcok ve\u013emi plytk\u00fdch jamiek (10 \u2013 100 \u00b5m), ktor\u00e9 sa vytvoria, ke\u010f pomer filmu EHL \u03bb klesne pod 2,0 v kontaktn\u00fdch z\u00f3nach s drsnos\u0165ou. Z\u00f3na po\u0161kodenia sa rozprestiera na v\u00e4\u010d\u0161ej ploche ako makrojamkov\u00e1 \u0161kvrna a ak sa nerie\u0161i, m\u00f4\u017ee prejs\u0165 do makrojamkovej \u0161kvrny. Od odierania sa d\u00e1 odl\u00ed\u0161i\u0165 absenciou smerov\u00fdch ryhovac\u00edch st\u00f4p.<\/p>\n<h3 style=\"font-size: clamp(15px,2.5vw,19px); color: #2c3e50; border-left: 4px solid #1a5276; padding-left: 10px; margin: 24px 0 10px; font-weight: bold;\">Mechanizmus mikropittingu a kritick\u00fd rozdiel od makropittingu<\/h3>\n<p style=\"font-size: clamp(14px,2vw,17px); color: #2c3e50; line-height: 1.85; margin-bottom: 14px;\">Mikroskopick\u00e9 jamky v <strong>\u0161pir\u00e1lov\u00e9 ozuben\u00e9 koleso<\/strong> vznik\u00e1, ke\u010f sa povrchov\u00e9 nerovnosti dot\u00fdkaj\u00fa cez nedostato\u010dn\u00fd film EHL (\u03bb &lt; 2,0) a ka\u017ed\u00fd kontakt vytv\u00e1ra ve\u013emi mal\u00fa \u00fanavov\u00fa trhlinu v kontaktnej z\u00f3ne nerovnost\u00ed \u2013 v h\u013abke 10 \u2013 100 \u00b5m, \u010do je ove\u013ea menej ako makropitting (ktor\u00fd m\u00f4\u017ee vznikn\u00fa\u0165 100 \u2013 500 \u00b5m pod povrchom). Jednotliv\u00e9 trhliny s\u00fa pr\u00edli\u0161 mal\u00e9 na to, aby boli vidite\u013en\u00e9 jednotlivo, ale kolekt\u00edvne po\u0161kodenie z mili\u00f3nov kontaktov nerovnost\u00ed vytv\u00e1ra siv\u00fd matn\u00fd vzh\u013ead vidite\u013en\u00fd vo\u013en\u00fdm okom v klzn\u00fdch z\u00f3nach materi\u00e1lu. <strong>\u0161pir\u00e1lov\u00e9 ozuben\u00e9 koleso<\/strong> zub (oblasti nad a pod rozstupovou \u010diarou, kde je klzn\u00e1 r\u00fdchlos\u0165 najvy\u0161\u0161ia \u2013 opak makropittingu, ktor\u00fd sa koncentruje v bl\u00edzkosti rozstupovej \u010diary, kde je klzn\u00e1 r\u00fdchlos\u0165 najni\u017e\u0161ia).<\/p>\n<div style=\"background: #eaf6fb; border-left: 4px solid #2980b9; padding: 13px 16px; border-radius: 0 6px 6px 0; margin: 16px 0; font-size: clamp(13px,1.8vw,15px); color: #2c3e50; line-height: 1.75;\"><strong>Rozdiel v lokaliz\u00e1cii \u2013 mikro-jamkovanie vs. makro-jamkovanie:<\/strong> Makropitting sa koncentruje V BL\u00cdZKOSTI rozstupovej \u010diary (kde je vrstva EHL najten\u0161ia pre dan\u00fa geometriu zuba, preto\u017ee r\u00fdchlos\u0165 k\u013azania \u2192 0 zni\u017euje hydrodynamick\u00fd klin). Mikropitting sa koncentruje VY\u0160\u0160IE od rozstupovej \u010diary \u2013 v z\u00f3nach adendum a dedendum, kde je r\u00fdchlos\u0165 k\u013azania vy\u0161\u0161ia (viac kontaktov drsnosti na jednotku plochy). Tento rozdiel v umiestnen\u00ed je najspo\u013eahlivej\u0161ou vizu\u00e1lnou diagnostikou medzi t\u00fdmito dvoma re\u017eimami poruchy bez zv\u00e4\u010d\u0161enia.<\/div>\n<h3 style=\"font-size: clamp(15px,2.5vw,19px); color: #2c3e50; border-left: 4px solid #1a5276; padding-left: 10px; margin: 24px 0 10px; font-weight: bold;\">Prevencia mikropittingu v \u0161pir\u00e1lov\u00fdch ozuben\u00fdch koles\u00e1ch<\/h3>\n<p style=\"font-size: clamp(14px,2vw,17px); color: #2c3e50; line-height: 1.85; margin-bottom: 14px;\">\u0160tyri intervencie zni\u017euj\u00fa riziko mikropittingu v <strong>\u0161pir\u00e1lov\u00e9 ozuben\u00e9 koleso<\/strong> pohony, zoraden\u00e9 pod\u013ea \u00fa\u010dinnosti:<\/p>\n<div style=\"display: grid; grid-template-columns: repeat(auto-fit,minmax(220px,1fr)); gap: 12px; margin: 18px 0;\">\n<div style=\"border-left: 4px solid #1a5276; background: #f8f9fa; padding: 15px 16px; border-radius: 0 6px 6px 0;\">\n<p><strong style=\"display: block; color: #1a5276; font-size: clamp(12.5px,1.7vw,14px); margin-bottom: 5px;\">1. Povrchov\u00e1 \u00faprava ISF<\/strong><\/p>\n<p style=\"font-size: clamp(12px,1.6vw,13px); color: #2c3e50; line-height: 1.65; margin: 0;\">ISF zni\u017euje <strong>\u0161pir\u00e1lov\u00e9 ozuben\u00e9 koleso<\/strong> Ra z 0,3 \u00b5m na 0,05 \u00b5m, \u010d\u00edm sa zdvojn\u00e1sobuje \u03bb. Pre ozuben\u00e9 koles\u00e1 elektrick\u00fdch vozidiel a vetern\u00fdch turb\u00edn, kde je mikropitting prim\u00e1rnym obmedzova\u010dom \u017eivotnosti, je ISF najn\u00e1kladovo efekt\u00edvnej\u0161\u00edm z\u00e1sahom.<\/p>\n<\/div>\n<div style=\"border-left: 4px solid #1a5276; background: #f8f9fa; padding: 15px 16px; border-radius: 0 6px 6px 0;\">\n<p><strong style=\"display: block; color: #1a5276; font-size: clamp(12.5px,1.7vw,14px); margin-bottom: 5px;\">2. Olej odoln\u00fd vo\u010di mikropittingu<\/strong><\/p>\n<p style=\"font-size: clamp(12px,1.6vw,13px); color: #2c3e50; line-height: 1.65; margin: 0;\">Hodnotenie MLS \u2265 10 v teste FVA 54\/7 (polysulfidov\u00fd EP bal\u00edk v b\u00e1ze PAO) zabra\u0148uje mikropittingu pri \u03bb pod 2,0 vytvoren\u00edm ochrann\u00e9ho tribochemick\u00e9ho filmu. \u0160tandardn\u00fd miner\u00e1lny olej GL-4 dosahuje iba MLS 6\u20138 \u2013 nedostato\u010dn\u00e9 pre vysokocyklov\u00e9 pohony nad 10\u2078 cyklov.<\/p>\n<\/div>\n<div style=\"border-left: 4px solid #1a5276; background: #f8f9fa; padding: 15px 16px; border-radius: 0 6px 6px 0;\">\n<p><strong style=\"display: block; color: #1a5276; font-size: clamp(12.5px,1.7vw,14px); margin-bottom: 5px;\">3. Vy\u0161\u0161ia trieda presnosti<\/strong><\/p>\n<p style=\"font-size: clamp(12px,1.6vw,13px); color: #2c3e50; line-height: 1.65; margin: 0;\">Uzemnenie pod\u013ea DIN triedy 4\u20135 <strong>\u0161pir\u00e1lov\u00e9 ozuben\u00e9 koles\u00e1<\/strong> maj\u00fa ni\u017e\u0161iu vlnitos\u0165 profilu a jemnej\u0161iu text\u00faru povrchu ako trieda DIN 7\u20138, \u010do poskytuje vy\u0161\u0161ie \u03bb na stupnici drsnosti aj pri rovnakom meran\u00ed Ra. Od\u013eah\u010denie hrotu \u010falej zni\u017euje kontaktn\u00fd tlak na vstupe zuba, kde \u03bb po\u010das prechodu tuhosti prechodne kles\u00e1.<\/p>\n<\/div>\n<div style=\"border-left: 4px solid #1a5276; background: #f8f9fa; padding: 15px 16px; border-radius: 0 6px 6px 0;\">\n<p><strong style=\"display: block; color: #1a5276; font-size: clamp(12.5px,1.7vw,14px); margin-bottom: 5px;\">4. Zv\u00e4\u010d\u0161en\u00fd uhol \u0161pir\u00e1ly<\/strong><\/p>\n<p style=\"font-size: clamp(12px,1.6vw,13px); color: #2c3e50; line-height: 1.65; margin: 0;\">Vy\u0161\u0161ie \u03b2 zvy\u0161uje \u03b5\u03b2 na <strong>\u0161pir\u00e1lov\u00e9 ozuben\u00e9 koleso<\/strong> \u2014 viac p\u00e1rov zubov rozde\u013euje za\u0165a\u017eenie, \u010d\u00edm sa zni\u017euje kontaktn\u00e9 nap\u00e4tie \u03c3_H a zvy\u0161uje sa \u03bb, aby sa zn\u00ed\u017eilo riziko mikropittingu pri vysokom po\u010dte cyklov.<\/p>\n<\/div>\n<\/div>\n<h2 style=\"font-size: clamp(18px,3vw,24px); color: #1a5276; border-bottom: 3px solid #e67e22; padding-bottom: 8px; margin: 40px 0 16px; font-weight: bold;\">Odieranie \u2013 okam\u017eit\u00e9 zlyhanie lepidla<\/h2>\n<h3 style=\"font-size: clamp(15px,2.5vw,19px); color: #2c3e50; border-left: 4px solid #1a5276; padding-left: 10px; margin: 24px 0 10px; font-weight: bold;\">Bleskov\u00fd teplotn\u00fd model Blok<\/h3>\n<p style=\"font-size: clamp(14px,2vw,17px); color: #2c3e50; line-height: 1.85; margin-bottom: 14px;\">\u0160krabanie v <strong>\u0161pir\u00e1lov\u00e9 ozuben\u00e9 koleso<\/strong> nast\u00e1va, ke\u010f kontaktn\u00e1 teplota drsnosti \u2013 \u201eteplota vzplanutia\u201c \u2013 kr\u00e1tkodobo prekro\u010d\u00ed teplotu, pri ktorej sa mazac\u00ed film zr\u00fati a doch\u00e1dza ku kontaktu kovu s kovom. Blokov model teploty vzplanutia (z\u00e1klad hodnotenia rizika odierania pod\u013ea noriem AGMA 925 a ISO TR 15144) vypo\u010d\u00edtava n\u00e1rast teploty vzplanutia v mieste kontaktu zubov:<\/p>\n<p style=\"padding: 10px 16px; background: #f0f8ff; border-left: 4px solid #2980b9; border-radius: 0 6px 6px 0; font-family: 'Courier New',monospace; font-size: clamp(13px,1.8vw,15px); margin: 12px 0;\">T_blesk = T_objem + \u0394T_blesk<br \/>\n\u0394T_blesk = f \u00d7 w_n \u00d7 |v_s| \/ (b_H \u00d7 \u221a(\u03c1\u2081 \u00d7 c\u2081 \u00d7 k\u2081 \u00d7 v_r1) + \u221a(\u03c1\u2082 \u00d7 c\u2082 \u00d7 k\u2082 \u00d7 v_r2))<br \/>\nkde: f = koeficient trenia pri kontakte (\u2248 0,04\u20130,08 pre EHL; vy\u0161\u0161\u00ed v zmie\u0161anom filme)<br \/>\nw_n = norm\u00e1lov\u00e9 kontaktn\u00e9 za\u0165a\u017eenie na jednotku \u0161\u00edrky [N\/mm]<br \/>\nv_s = r\u00fdchlos\u0165 k\u013azania v kontaktnom bode [m\/s] \u2013 najvy\u0161\u0161ia na hrote a koreni zuba<br \/>\nb_H = Hertzova polovi\u010dn\u00e1 \u0161\u00edrka kontaktu [mm]<br \/>\n\u03c1, c, k = hustota, mern\u00e1 tepeln\u00e1 kapacita, tepeln\u00e1 vodivos\u0165 materi\u00e1lu ozuben\u00e9ho kolesa<br \/>\nv_r = zlo\u017eka r\u00fdchlosti odva\u013eovania ka\u017ed\u00e9ho povrchu ozuben\u00e9ho kolesa<\/p>\n<p>Odieranie sa za\u010d\u00edna, ke\u010f T_flash &gt; T_scuff (teplota odierania)<br \/>\nPre miner\u00e1lny olej: T_oder \u2248 T_olej_objem + 100\u2013150 \u00b0C<br \/>\nPre PAO s pr\u00edsadou proti oderu: T_oder \u2248 T_olej_objem + 150\u2013200 \u00b0C<\/p>\n<h3 style=\"font-size: clamp(15px,2.5vw,19px); color: #2c3e50; border-left: 4px solid #1a5276; padding-left: 10px; margin: 24px 0 10px; font-weight: bold;\">Vizu\u00e1lny vzh\u013ead odierania \u2013 odli\u0161n\u00fd od jamkovej skody<\/h3>\n<p style=\"font-size: clamp(14px,2vw,17px); color: #2c3e50; line-height: 1.85; margin-bottom: 14px;\">Po\u0161kodenie oderom na <strong>\u0161pir\u00e1lov\u00e9 ozuben\u00e9 koleso<\/strong> sa odl\u00ed\u0161i od jamkovej r\u00fdhovania smerov\u00fdm ryhovan\u00edm:<\/p>\n<ul style=\"padding-left: 20px; margin: 0 0 16px; font-size: clamp(14px,2vw,17px); color: #2c3e50; line-height: 1.9;\">\n<li style=\"margin-bottom: 7px;\"><strong>Poloha:<\/strong> Hroty zubov (addendum \u2013 z\u00f3na vybrania) a korene zubov (dedendum \u2013 z\u00f3na pribl\u00ed\u017eenia), kde je k\u013azav\u00e1 r\u00fdchlos\u0165 maxim\u00e1lna. Samotn\u00e1 rozstupov\u00e1 \u010diara je zvy\u010dajne nepo\u0161koden\u00e1 alebo minim\u00e1lne ovplyvnen\u00e1. Toto je OPAK miesta makrojamkovania.<\/li>\n<li style=\"margin-bottom: 7px;\"><strong>Smerovos\u0165:<\/strong> Hlbok\u00e9 \u0161krabance alebo ryhy prebiehaj\u00face v smere k\u013azania zuba \u2013 radi\u00e1lne cez zub od kore\u0148a k hrotu (pre ozuben\u00e9 koleso) alebo od hrotu ku kore\u0148u (pre pastorok) v ka\u017edej ryhe. Tieto ryhy nie s\u00fa n\u00e1hodn\u00e9 ako pri opotrebovan\u00ed abraz\u00edvnym zne\u010disten\u00edm, ale s\u00fa orientovan\u00e9 konzistentne so smerom k\u013azania.<\/li>\n<li style=\"margin-bottom: 0;\"><strong>Presun materi\u00e1lu:<\/strong> Mikroskopick\u00e9 vy\u0161etrenie odhal\u00ed materi\u00e1l prenesen\u00fd z jedn\u00e9ho boku zuba na dosadaj\u00faci bok \u2013 \u010do je ur\u010duj\u00faca charakteristika adh\u00e9zneho opotrebenia. \u201ePrij\u00edmac\u00ed\u201c povrch (zvy\u010dajne pomal\u0161ie sa pohybuj\u00face ozuben\u00e9 koleso) vykazuje zvaren\u00e9 hrudky prenesen\u00e9ho materi\u00e1lu pozd\u013a\u017e ryhovan\u00fdch dr\u00e1\u017eok.<\/li>\n<\/ul>\n<h2 style=\"font-size: clamp(18px,3vw,24px); color: #1a5276; border-bottom: 3px solid #e67e22; padding-bottom: 8px; margin: 40px 0 16px; font-weight: bold;\">R\u00fdchla trojcestn\u00e1 diagnostika \u2013 ktor\u00fd re\u017eim poruchy?<\/h2>\n<div style=\"overflow-x: auto; width: 100%; margin: 18px 0;\">\n<table style=\"width: 100%; border-collapse: collapse; min-width: 500px;\">\n<thead>\n<tr>\n<th style=\"background: #1a5276; color: #fff; padding: 10px 13px; text-align: left; border: 1px solid #154360; font-size: clamp(13px,1.5vw,15px);\">Diagnostick\u00e1 ot\u00e1zka<\/th>\n<th style=\"background: #1a5276; color: #fff; padding: 10px 13px; text-align: left; border: 1px solid #154360; font-size: clamp(13px,1.5vw,15px);\">Makropitovanie<\/th>\n<th style=\"background: #1a5276; color: #fff; padding: 10px 13px; text-align: left; border: 1px solid #154360; font-size: clamp(13px,1.5vw,15px);\">Mikrodr\u00e1\u017ekovanie<\/th>\n<th style=\"background: #1a5276; color: #fff; padding: 10px 13px; text-align: left; border: 1px solid #154360; font-size: clamp(13px,1.5vw,15px);\">Odieranie<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"background: #f2f3f4; padding: 8px 12px; border: 1px solid #d5d8dc; font-size: clamp(13px,1.5vw,15px); ;font-weight: 700;\">Vzh\u013ead boku zuba<\/td>\n<td style=\"background: #f2f3f4; padding: 8px 12px; border: 1px solid #d5d8dc; font-size: clamp(13px,1.5vw,15px);\">Hladk\u00e9 kr\u00e1tery, 0,5\u20135 mm, leskl\u00fd vn\u00fatorn\u00fd povrch<\/td>\n<td style=\"background: #f2f3f4; padding: 8px 12px; border: 1px solid #d5d8dc; font-size: clamp(13px,1.5vw,15px);\">Siv\u00fd matn\u00fd\/matn\u00fd n\u00e1ter; jemn\u00e1 text\u00fara; treba pozorne skontrolova\u0165<\/td>\n<td style=\"background: #f2f3f4; padding: 8px 12px; border: 1px solid #d5d8dc; font-size: clamp(13px,1.5vw,15px);\">Hlbok\u00e9 \u0161krabance\/ryhy; drsn\u00fd roztrhan\u00fd povrch; smerov\u00e9 zna\u010dky<\/td>\n<\/tr>\n<tr>\n<td style=\"background: #fff; padding: 8px 12px; border: 1px solid #d5d8dc; font-size: clamp(13px,1.5vw,15px); ;font-weight: 700;\">Umiestnenie na zube<\/td>\n<td style=\"background: #fff; padding: 8px 12px; border: 1px solid #d5d8dc; font-size: clamp(13px,1.5vw,15px);\">Bl\u00edzko \u010diary sklonu (minimum \u0161mykovej z\u00f3ny)<\/td>\n<td style=\"background: #fff; padding: 8px 12px; border: 1px solid #d5d8dc; font-size: clamp(13px,1.5vw,15px);\">Mimo \u010diary sklonu (addendum a dedendum, vysok\u00e1 \u0161mykov\u00e1 z\u00f3na)<\/td>\n<td style=\"background: #fff; padding: 8px 12px; border: 1px solid #d5d8dc; font-size: clamp(13px,1.5vw,15px);\">\u0160pi\u010dky a korene zubov (z\u00f3na maxim\u00e1lnej klznej r\u00fdchlosti)<\/td>\n<\/tr>\n<tr>\n<td style=\"background: #f2f3f4; padding: 8px 12px; border: 1px solid #d5d8dc; font-size: clamp(13px,1.5vw,15px); ;font-weight: 700;\">\u010cas na rozvoj<\/td>\n<td style=\"background: #f2f3f4; padding: 8px 12px; border: 1px solid #d5d8dc; font-size: clamp(13px,1.5vw,15px);\">10\u2076\u201310\u2079 cyklov \u2014 mesiacov a\u017e rokov<\/td>\n<td style=\"background: #f2f3f4; padding: 8px 12px; border: 1px solid #d5d8dc; font-size: clamp(13px,1.5vw,15px);\">10\u2077\u201310\u00b9\u2070 cyklov \u2013 m\u00f4\u017ee trva\u0165 roky; postupuje pomaly<\/td>\n<td style=\"background: #f2f3f4; padding: 8px 12px; border: 1px solid #d5d8dc; font-size: clamp(13px,1.5vw,15px);\">Min\u00faty a\u017e hodiny \u2013 m\u00f4\u017ee sa vyskytn\u00fa\u0165 pri prvej prev\u00e1dzke<\/td>\n<\/tr>\n<tr>\n<td style=\"background: #fff; padding: 8px 12px; border: 1px solid #d5d8dc; font-size: clamp(13px,1.5vw,15px); ;font-weight: 700;\">Sign\u00e1l po\u010dtu \u010dast\u00edc oleja<\/td>\n<td style=\"background: #fff; padding: 8px 12px; border: 1px solid #d5d8dc; font-size: clamp(13px,1.5vw,15px);\">Zvy\u0161ovanie ve\u013ekosti \u010dast\u00edc (50 \u2013 200 \u00b5m), vysok\u00fd pomer L\/W<\/td>\n<td style=\"background: #fff; padding: 8px 12px; border: 1px solid #d5d8dc; font-size: clamp(13px,1.5vw,15px);\">Zvy\u0161ovanie mno\u017estva jemn\u00fdch \u010dast\u00edc (1\u201315 \u00b5m)<\/td>\n<td style=\"background: #fff; padding: 8px 12px; border: 1px solid #d5d8dc; font-size: clamp(13px,1.5vw,15px);\">N\u00e1hly prudk\u00fd n\u00e1rast ve\u013ek\u00fdch kovov\u00fdch \u010dast\u00edc; prudk\u00fd n\u00e1rast koncentr\u00e1cie \u017eeleza<\/td>\n<\/tr>\n<tr>\n<td style=\"background: #f2f3f4; padding: 8px 12px; border: 1px solid #d5d8dc; font-size: clamp(13px,1.5vw,15px); ;font-weight: 700;\">Prim\u00e1rna pr\u00ed\u010dina<\/td>\n<td style=\"background: #f2f3f4; padding: 8px 12px; border: 1px solid #d5d8dc; font-size: clamp(13px,1.5vw,15px);\">\u03c3_H &gt; \u03c3_H lim (materi\u00e1l alebo za\u0165a\u017eenie)<\/td>\n<td style=\"background: #f2f3f4; padding: 8px 12px; border: 1px solid #d5d8dc; font-size: clamp(13px,1.5vw,15px);\">\u03bb &lt; 2,0 (olej, r\u00fdchlos\u0165, drsnos\u0165 povrchu)<\/td>\n<td style=\"background: #f2f3f4; padding: 8px 12px; border: 1px solid #d5d8dc; font-size: clamp(13px,1.5vw,15px);\">T_flash &gt; T_scuf (olej, r\u00fdchlos\u0165, kontaktn\u00fd tlak)<\/td>\n<\/tr>\n<tr>\n<td style=\"background: #fff; padding: 8px 12px; border: 1px solid #d5d8dc; font-size: clamp(13px,1.5vw,15px); ;font-weight: 700;\">Prim\u00e1rna oprava<\/td>\n<td style=\"background: #fff; padding: 8px 12px; border: 1px solid #d5d8dc; font-size: clamp(13px,1.5vw,15px);\">Lep\u0161\u00ed materi\u00e1l (cementovan\u00fd), zn\u00ed\u017eenie za\u0165a\u017eenia, zv\u00fd\u0161enie modulu<\/td>\n<td style=\"background: #fff; padding: 8px 12px; border: 1px solid #d5d8dc; font-size: clamp(13px,1.5vw,15px);\">Lep\u0161\u00ed olej (MLS 10), povrchov\u00e1 \u00faprava ISF, od\u013eah\u010denie hrotu<\/td>\n<td style=\"background: #fff; padding: 8px 12px; border: 1px solid #d5d8dc; font-size: clamp(13px,1.5vw,15px);\">Pr\u00edsady do oleja proti oderu, zni\u017euj\u00fa r\u00fdchlos\u0165 zubov, zni\u017euj\u00fa za\u0165a\u017eenie na zub<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h2 style=\"font-size: clamp(18px,3vw,24px); color: #1a5276; border-bottom: 3px solid #e67e22; padding-bottom: 8px; margin: 40px 0 16px; font-weight: bold;\">Korea Ever-Power \u2014 Anal\u00fdza povrchov\u00fdch por\u00fach a odpor\u00fa\u010dania materi\u00e1lov<\/h2>\n<p><img decoding=\"async\" style=\"width: 100%; height: auto; display: block; margin: 22px 0; border-radius: 6px; box-shadow: 0 3px 12px rgba(0,0,0,.10);\" src=\"https:\/\/helicalcutgears.top\/wp-content\/uploads\/2026\/04\/Hard-Tooth-Flank-Helical-Gear.webp\" alt=\"\u0160pecifik\u00e1cia \u0161pir\u00e1lov\u00e9ho ozuben\u00e9ho kolesa s tvrd\u00fdm bokom zubov s karbur\u00e1torovou \u00fapravou pre odolnos\u0165 vo\u010di jamkovej a mikrojamkovej tvorbe s povrchom HRC 58-62 s pevnos\u0165ou v tavenine sigma H lim 1500-1800 MPa a Ra 0,2 mikr\u00f3nu po br\u00fasen\u00ed met\u00f3dou H\u00d6FLER pre vysok\u00fd pomer lambda filmu\" \/><\/p>\n<p style=\"font-size: 12.5px; color: #7f8c8d; text-align: center; margin: -14px 0 24px; font-style: italic;\">Tvrd\u00fd bok zuba cementovan\u00fd <strong>\u0161pir\u00e1lov\u00e9 ozuben\u00e9 koleso<\/strong> \u2014 kombin\u00e1cia povrchovej tvrdosti HRC 58\u201362 (\u03c3_H lim 1500\u20131800 MPa), Ra \u2264 0,2 \u00b5m br\u00fasen\u00e9ho boku zuba H\u00d6FLER a spr\u00e1vne \u0161pecifikovanej viskozity oleja EHL poskytuje \u03bb \u2265 2,0 pri menovit\u00fdch ot\u00e1\u010dkach za\u0165a\u017eenia \u2014 prahov\u00e1 hodnota pre zabr\u00e1nenie vzniku makro- aj mikro-jamkovej tvorbe<\/p>\n<p style=\"font-size: clamp(14px,2vw,17px); color: #2c3e50; line-height: 1.85; margin-bottom: 14px;\">Korea Ever-Power pon\u00faka anal\u00fdzu povrchov\u00fdch por\u00fach: po\u0161lite chybn\u00e9 <strong>ozuben\u00e9 koleso so \u0161pir\u00e1lov\u00fdm rezom<\/strong> (alebo vysokokvalitn\u00e9 fotografie zobrazuj\u00face miesto, ve\u013ekos\u0165 a charakter po\u0161kodenia) technick\u00e9mu t\u00edmu spolo\u010dnosti Korea Ever-Power. Do 5 pracovn\u00fdch dn\u00ed spolo\u010dnos\u0165 Korea Ever-Power identifikuje sp\u00f4sob poruchy (makropitting, mikropitting alebo odieranie), odhadne pomer \u03bb v \u010dase poruchy na z\u00e1klade prev\u00e1dzkov\u00fdch podmienok a odporu\u010d\u00ed n\u00e1pravn\u00fa \u0161pecifik\u00e1ciu pre n\u00e1hradn\u00e9 ozuben\u00e9 koleso \u2013 moderniz\u00e1ciu materi\u00e1lu, zmenu triedy presnosti, zlep\u0161enie povrchovej \u00fapravy alebo zmenu \u0161pecifik\u00e1cie oleja. Ako priamy <a style=\"color: #1a5276; text-decoration: underline;\" href=\"https:\/\/helicalcutgears.top\/sk\/\">v\u00fdrobca \u0161pir\u00e1lov\u00fdch ozuben\u00fdch kolies<\/a>N\u00e1hradu vyr\u00e1ba spolo\u010dnos\u0165 Korea Ever-Power <strong>\u0161pir\u00e1lov\u00e9 ozuben\u00e9 koleso<\/strong> pod\u013ea opravenej \u0161pecifik\u00e1cie s rovnak\u00fdm dodac\u00edm harmonogramom ako pri \u0161tandardnej objedn\u00e1vke. Prezrite si <a style=\"color: #1a5276; text-decoration: underline;\" href=\"https:\/\/helicalcutgears.top\/sk\/product-category\/helical-gear\/\">sortiment \u0161pir\u00e1lov\u00fdch ozuben\u00fdch kolies<\/a> pre v\u0161etky mo\u017enosti materi\u00e1lov a povrchov\u00fdch \u00faprav.<\/p>\n<h2 style=\"font-size: clamp(18px,3vw,24px); color: #1a5276; border-bottom: 3px solid #e67e22; padding-bottom: 8px; margin: 40px 0 16px; font-weight: bold;\">\u010casto kladen\u00e9 ot\u00e1zky<\/h2>\n<div style=\"border-bottom: 1px solid #e0e0e0; padding: 14px 0;\"><strong style=\"font-size: clamp(14px,2vw,17px); color: #1a5276; line-height: 1.85; margin-bottom: 7px; display: block;\">M\u00f4\u017ee sa mikro-jamkovanie na \u0161pir\u00e1lovom ozubenom kolese sp\u00e4tne pohybova\u0165 alebo zastavi\u0165 bez z\u00e1sahu?<\/strong><\/p>\n<p style=\"font-size: clamp(14px,2vw,17px); color: #2c3e50; line-height: 1.85; margin-bottom: 0;\">\u00c1no \u2013 mikrojamkovanie v <strong>\u0161pir\u00e1lov\u00e9 ozuben\u00e9 koleso<\/strong> m\u00f4\u017ee sa zastavi\u0165 a stabilizova\u0165 v \u0161pecifick\u00fdch podmienkach. Ako sa povrch s mikrojamkami postupne vyhladzuje (vrcholy drsnosti sa obrusuj\u00fa samotn\u00fdm procesom mikrojamkovania), kombinovan\u00e1 drsnos\u0165 R_q sa zni\u017euje, \u010do zvy\u0161uje \u03bb nad prah mikrojamkovania 2,0. Tento samoobmedzuj\u00faci mechanizmus sa niekedy pozoruje v po\u010diato\u010dnom obdob\u00ed z\u00e1behu nov\u00fdch ozuben\u00fdch kolies \u2013 obdob\u00ed mikrojamkovania, po ktorom nasleduje stabiliz\u00e1cia na novom, mierne drsnej\u0161om, ale stabilnom povrchu. Na samoobmedzuj\u00face spr\u00e1vanie sa v\u0161ak nemo\u017eno spolieha\u0165 na \u00fa\u010dely n\u00e1vrhu: ak je prev\u00e1dzkov\u00e9 \u03bb v\u00fdrazne pod 2,0 (napr. \u03bb = 1,0\u20131,3), mikrojamkovanie bude postupova\u0165 do makrojamkovania, namiesto toho, aby sa stabilizovalo. Odpor\u00fa\u010danie spolo\u010dnosti Korea Ever-Power: ak analyz\u00e1tor ozuben\u00fdch kolies s prev\u00e1dzkovou \u017eivotnos\u0165ou <strong>\u0161pir\u00e1lov\u00e9 ozuben\u00e9 koleso<\/strong> vykazuje mikrojamkov\u00fa text\u00faru, ale \u017eiadne makrojamky, vykonajte anal\u00fdzu oleja a v\u00fdpo\u010det \u03bb \u2013 ak \u03bb &lt; 1,5, zasiahnite s moderniz\u00e1ciou oleja pred \u010fal\u0161\u00edm intervalom \u00fadr\u017eby.<\/p>\n<\/div>\n<div style=\"border-bottom: 1px solid #e0e0e0; padding: 14px 0;\"><strong style=\"font-size: clamp(14px,2vw,17px); color: #1a5276; line-height: 1.85; margin-bottom: 7px; display: block;\">Pre\u010do sa niekedy vyskytuje odieranie na novom \u0161pir\u00e1lovom ozubenom kolese so spr\u00e1vnym olejom a spr\u00e1vnym za\u0165a\u017een\u00edm?<\/strong><\/p>\n<p style=\"font-size: clamp(14px,2vw,17px); color: #2c3e50; line-height: 1.85; margin-bottom: 0;\">Aj po presnom br\u00fasen\u00ed, nov\u00fd <strong>\u0161pir\u00e1lov\u00e9 ozuben\u00e9 koleso<\/strong> m\u00e1 v\u00fd\u0161ky drsnosti povrchu, ktor\u00e9 v prv\u00fdch hodin\u00e1ch prev\u00e1dzky \u2013 predt\u00fdm, ako z\u00e1beh vyhlad\u00ed povrch \u2013 vytv\u00e1raj\u00fa \u03bb pod prahom pln\u00e9ho filmu. Teploty vzplanutia drsnosti po\u010das tohto po\u010diato\u010dn\u00e9ho obdobia m\u00f4\u017eu prekro\u010di\u0165 T_oder, ak: (1) olej e\u0161te neobsahuje dostato\u010dn\u00e9 mno\u017estvo aktiva\u010dn\u00fdch produktov proti oderu z kontaktov po\u010das z\u00e1behu; (2) ten\/t\u00e1\/to <strong>\u0161pir\u00e1lov\u00e9 ozuben\u00e9 koleso<\/strong> sa prev\u00e1dzkuje pri plnom za\u0165a\u017een\u00ed ihne\u010f bez z\u00e1behovej doby; alebo (3) prevodovka a olej nie s\u00fa pred za\u0165a\u017een\u00edm predhriate. Spolo\u010dnos\u0165 Korea Ever-Power odpor\u00fa\u010da 4-hodinov\u00fd postupn\u00fd z\u00e1beh pre v\u0161etky nov\u00e9 <strong>\u0161pir\u00e1lov\u00e9 ozuben\u00e9 koleso<\/strong> in\u0161tal\u00e1cie vo vysokor\u00fdchlostn\u00fdch pohonoch (v &gt; 20 m\/s): za\u010dnite s menovit\u00fdm za\u0165a\u017een\u00edm 25% po\u010das 1 hodiny, potom 50% po\u010das 1 hodiny, 75% po\u010das 1 hodiny, potom pln\u00e9 za\u0165a\u017eenie \u2013 \u010do umo\u017e\u0148uje postupn\u00e9 upravovanie povrchu a aktiv\u00e1ciu adit\u00edv pred dosiahnut\u00edm teploty vzplanutia pri plnom za\u0165a\u017een\u00ed.<\/p>\n<\/div>\n<div style=\"border-bottom: 1px solid #e0e0e0; padding: 14px 0;\"><strong style=\"font-size: clamp(14px,2vw,17px); color: #1a5276; line-height: 1.85; margin-bottom: 7px; display: block;\">Ktor\u00e1 olejov\u00e1 pr\u00edsada zabra\u0148uje odieraniu a ktor\u00e1 zabra\u0148uje mikropittingu \u2013 s\u00fa to ist\u00e9?<\/strong><\/p>\n<p style=\"font-size: clamp(14px,2vw,17px); color: #2c3e50; line-height: 1.85; margin-bottom: 0;\">Prekr\u00fdvaj\u00fa sa, ale nie s\u00fa identick\u00e9. Polysulfidov\u00e9 pr\u00edsady pre extr\u00e9mny tlak (EP) poskytuj\u00fa ochranu proti oderu (vytvoren\u00edm obetn\u00e9ho tribofilmu zo sulfidu \u017eeleza, ktor\u00fd zabra\u0148uje adh\u00e9znemu kontaktu pri teplote vzplanutia) aj ochranu proti mikropittingu (zn\u00ed\u017een\u00edm koeficientu trenia na kontaktoch s drsnos\u0165ou pod prahom vzniku mikropittingu). Borit\u00e1nov\u00e9 pr\u00edsady EP poskytuj\u00fa vynikaj\u00facu ochranu proti mikropittingu (FVA 54\/7 MLS 10), ale o nie\u010do ni\u017e\u0161iu ochranu proti oderu ako polysulfid. Konven\u010dn\u00e9 s\u00edrovo-fosforov\u00e9 (S\/P) pr\u00edsady EP poskytuj\u00fa miernu ochranu proti oderu, ale vo v\u0161eobecnosti slab\u00fa ochranu proti mikropittingu (MLS 6\u20138) v... <strong>\u0161pir\u00e1lov\u00e9 ozuben\u00e9 koleso<\/strong> aplik\u00e1cie. Pre aplik\u00e1cie s vysok\u00fdm cyklom (vetern\u00e9 turb\u00edny, reduktory pre elektromobily), kde s\u00fa pr\u00edtomn\u00e9 obe rizik\u00e1: \u0161pecifikujte z\u00e1kladov\u00fd olej PAO + polysulfid EP, \u010do je jedin\u00fd be\u017en\u00fd typ pr\u00edsady, ktor\u00fd dosahuje MLS 10 (mikropitting) A primeran\u00fa ochranu pred odieran\u00edm v jednom balen\u00ed.<\/p>\n<\/div>\n<div style=\"padding: 14px 0;\"><strong style=\"font-size: clamp(14px,2vw,17px); color: #1a5276; line-height: 1.85; margin-bottom: 7px; display: block;\">M\u00e1 vy\u0161\u0161iu tvrdos\u0165 <strong>\u0161pir\u00e1lov\u00e9 ozuben\u00e9 koleso<\/strong> zabra\u0148uje odieraniu lep\u0161ie ako m\u00e4k\u0161\u00ed prevodov\u00fd stupe\u0148?<\/strong><\/p>\n<p style=\"font-size: clamp(14px,2vw,17px); color: #2c3e50; line-height: 1.85; margin-bottom: 0;\">Nie v\u00fdrazne \u2013 odieranie je ur\u010den\u00e9 teplotou vzplanutia a spr\u00e1van\u00edm olejov\u00e9ho filmu, nie tvrdos\u0165ou materi\u00e1lu. Cementovan\u00e1 oce\u013e HRC 60 <strong>\u0161pir\u00e1lov\u00e9 ozuben\u00e9 koleso<\/strong> odiera sa pri pribli\u017ene rovnakej teplote vzplanutia ako ozuben\u00e9 koleso QT HB 280, ak maj\u00fa obe rovnak\u00fa drsnos\u0165 povrchu a olej. Cementovan\u00e9 ozuben\u00e9 koles\u00e1 sa v\u0161ak be\u017ene br\u00fasia na Ra \u2264 0,2 \u00b5m, zatia\u013e \u010do ozuben\u00e9 koles\u00e1 QT s m\u00e4kk\u00fdm bokom sa zvy\u010dajne odva\u013euj\u00fa iba na Ra \u2248 1,5\u20132,5 \u00b5m. Tento rozdiel v drsnosti znamen\u00e1, \u017ee cementovan\u00e9 ozuben\u00e9 koleso m\u00e1 ove\u013ea vy\u0161\u0161iu hodnotu \u03bb, a preto pracuje \u010falej od prahu oderu, aj ke\u010f samotn\u00fd prah teploty oderu je podobn\u00fd. Praktick\u00fd v\u00fdsledok: cementovan\u00e9 a br\u00fasen\u00e9 <strong>\u0161pir\u00e1lov\u00e9 ozuben\u00e9 koles\u00e1<\/strong> s\u00fa v\u00fdrazne menej n\u00e1chyln\u00e9 na odieranie nie kv\u00f4li ich vy\u0161\u0161ej tvrdosti ako takej, ale preto, \u017ee proces br\u00fasenia, ktor\u00fd nasleduje po cement\u00e1cii, dramaticky zni\u017euje drsnos\u0165 povrchu.<\/p>\n<\/div>\n<div id=\"contact\" style=\"background: linear-gradient(135deg,#12243e 0%,#1c4a8a 100%); border-radius: 10px; padding: clamp(28px,5%,48px); margin: 48px 0 20px; text-align: center;\">\n<h2 style=\"font-size: clamp(20px,3vw,30px); color: #fff; font-weight: 800; margin: 0 0 12px;\">Odoslanie po\u0161koden\u00e9ho \u0161pir\u00e1lov\u00e9ho ozuben\u00e9ho kolesa na anal\u00fdzu povrchov\u00e9ho po\u0161kodenia<\/h2>\n<p style=\"font-size: clamp(14px,2vw,16.5px); color: rgba(255,255,255,.78); max-width: 520px; margin: 0 auto 26px; line-height: 1.72;\">Po\u0161lite chybn\u00fd prevodov\u00fd stupe\u0148 (alebo fotografie zobrazuj\u00face miesto, rozsah a charakter po\u0161kodenia) spolu s prev\u00e1dzkov\u00fdmi podmienkami (v\u00fdkon, r\u00fdchlos\u0165, druh oleja, teplota okolia). Spolo\u010dnos\u0165 Korea Ever-Power identifikuje sp\u00f4sob poruchy \u2013 jamkov\u00e9 koroz\u00edvne \u0161kvrny, mikrojamkov\u00e9 koroz\u00edvne \u0161kvrny alebo odieranie \u2013 a do 5 pracovn\u00fdch dn\u00ed odporu\u010d\u00ed n\u00e1pravn\u00fa \u0161pecifik\u00e1ciu.<\/p>\n<div style=\"display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; margin-bottom: 12px;\"><a style=\"display: inline-block; background: #e67e22; color: #fff; font-weight: bold; font-size: clamp(13px,1.8vw,15px); padding: 13px 28px; border-radius: 6px; text-decoration: none;\" href=\"#contact\">Odosla\u0165 \u017eiados\u0165 o anal\u00fdzu zlyhania<\/a><br \/>\n<a style=\"display: inline-block; background: transparent; color: #fff; font-weight: bold; font-size: clamp(13px,1.8vw,15px); padding: 13px 28px; border-radius: 6px; text-decoration: none; border: 2px solid rgba(255,255,255,.55);\" href=\"https:\/\/helicalcutgears.top\/sk\/product-category\/helical-gear\/\">Sortiment \u0161pir\u00e1lov\u00fdch ozuben\u00fdch kolies<\/a><\/div>\n<p style=\"font-size: clamp(12px,1.6vw,13.5px); color: rgba(255,255,255,.48); margin: 0;\">Jamkov\u00e1 tvorba \u00b7 Mikrojamkov\u00e1 tvorba \u00b7 Oder \u00b7 V\u00fdpo\u010det \u03bb \u00b7 Odpor\u00fa\u010danie oleja \u00b7 Korek\u010dn\u00e1 \u0161pecifik\u00e1cia \u00b7 5 pracovn\u00fdch dn\u00ed<\/p>\n<\/div>\n<p>Redaktor: Cxm<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Helical Gear Surface Failure \u2014 Pitting, Micropitting and Scuffing Distinguished and Prevented Three distinct surface failure mechanisms affect the tooth flanks of a helical gear \u2014 pitting, micropitting, and scuffing \u2014 and each requires a different prevention strategy. Confusing them leads to the wrong intervention: applying high-EP additive oil to a helical gear with macropitting [&hellip;]<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[3082],"tags":[],"class_list":["post-2399","post","type-post","status-publish","format-standard","hentry","category-helical-gears"],"_links":{"self":[{"href":"https:\/\/helicalcutgears.top\/sk\/wp-json\/wp\/v2\/posts\/2399","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/helicalcutgears.top\/sk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/helicalcutgears.top\/sk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/helicalcutgears.top\/sk\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/helicalcutgears.top\/sk\/wp-json\/wp\/v2\/comments?post=2399"}],"version-history":[{"count":2,"href":"https:\/\/helicalcutgears.top\/sk\/wp-json\/wp\/v2\/posts\/2399\/revisions"}],"predecessor-version":[{"id":2401,"href":"https:\/\/helicalcutgears.top\/sk\/wp-json\/wp\/v2\/posts\/2399\/revisions\/2401"}],"wp:attachment":[{"href":"https:\/\/helicalcutgears.top\/sk\/wp-json\/wp\/v2\/media?parent=2399"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/helicalcutgears.top\/sk\/wp-json\/wp\/v2\/categories?post=2399"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/helicalcutgears.top\/sk\/wp-json\/wp\/v2\/tags?post=2399"}],"curies":[{"name":"pracovn\u00fd list","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}