{"id":2135,"date":"2026-04-13T08:10:56","date_gmt":"2026-04-13T08:10:56","guid":{"rendered":"https:\/\/helicalcutgears.top\/?p=2135"},"modified":"2026-04-13T08:15:07","modified_gmt":"2026-04-13T08:15:07","slug":"helical-cut-gears-vs-straight-cut-gears-full-engineering-comparison","status":"publish","type":"post","link":"https:\/\/helicalcutgears.top\/sk\/helical-cut-gears-vs-straight-cut-gears-full-engineering-comparison\/","title":{"rendered":"\u0160pir\u00e1lov\u00e9 ozuben\u00e9 koles\u00e1 vs. rovn\u00e9 ozuben\u00e9 koles\u00e1 \u2013 kompletn\u00e9 in\u017einierske porovnanie"},"content":{"rendered":"
\n

<\/p>\n

\n
<\/div>\n
\n

\u0160pir\u00e1lov\u00e9 ozuben\u00e9 koles\u00e1 vs. rovn\u00e9 ozuben\u00e9 koles\u00e1 \u2013 kompletn\u00e9 in\u017einierske porovnanie<\/h1>\n

Rozdiel medzi ozuben\u00fdmi kolesami so \u0161pir\u00e1lov\u00fdm ozuben\u00fdm kolesom a ozuben\u00fdmi kolesami so priamym ozuben\u00fdm kolesom presahuje uhol zuba \u2013 ur\u010duje hluk, nosnos\u0165, rozsah ot\u00e1\u010dok a \u017eivotnos\u0165. T\u00e1to pr\u00edru\u010dka porovn\u00e1va oba typy ozuben\u00fdch kolies vo v\u0161etk\u00fdch k\u013e\u00fa\u010dov\u00fdch v\u00fdkonnostn\u00fdch rozmeroch s pou\u017eit\u00edm skuto\u010dn\u00fdch technick\u00fdch \u00fadajov.<\/p>\n

Diskutujte o svojej \u017eiadosti \u2192<\/a><\/p>\n<\/div>\n<\/div>\n

<\/p>\n

\u0160pir\u00e1lov\u00e9 ozuben\u00e9 koles\u00e1 vs. rovn\u00e9 ozuben\u00e9 koles\u00e1 \u2013 kr\u00e1tka odpove\u010f<\/h2>\n

\u0160pir\u00e1lov\u00e9 ozuben\u00e9 koles\u00e1<\/strong> Prekon\u00e1vaj\u00fa rovn\u00e9 ozuben\u00e9 koles\u00e1 v ka\u017edom d\u00f4le\u017eitom ukazovateli v\u00fdkonu pri stredn\u00fdch a\u017e vysok\u00fdch r\u00fdchlostiach: s\u00fa o 8 \u2013 12 dB(A) tich\u0161ie, pren\u00e1\u0161aj\u00fa o 25 \u2013 50% v\u00e4\u010d\u0161\u00ed kr\u00fatiaci moment pri rovnakom priemere ozuben\u00e9ho kolesa a spo\u013eahlivo pracuj\u00fa pri r\u00fdchlostiach na l\u00ednii zubov a\u017e do 150 m\/s oproti pribli\u017ene 10 \u2013 15 m\/s, \u010do je praktick\u00e9 pre rovn\u00e9 ozuben\u00e9 koles\u00e1. Jedin\u00fdm kompromisom je axi\u00e1lna axi\u00e1lna sila generovan\u00e1 \u0161ikm\u00fdm zubom \u2013 zvl\u00e1dnute\u013en\u00e1 pomocou \u0161tandardn\u00fdch lo\u017e\u00edsk s kosouhl\u00fdm stykom alebo \u00faplne eliminovan\u00e1 dvojitou \u0161pir\u00e1lovou (rybia kos\u0165) konfigur\u00e1ciou.<\/p>\n

Priame ozuben\u00e9 koles\u00e1 (\u010deln\u00e9 ozuben\u00e9 koles\u00e1) s\u00fa jednoduch\u0161ie a lacnej\u0161ie na v\u00fdrobu, nevytv\u00e1raj\u00fa \u017eiadny axi\u00e1lny tlak a zost\u00e1vaj\u00fa spr\u00e1vnou vo\u013ebou pre n\u00edzkor\u00fdchlostn\u00e9 pomocn\u00e9 pohony, otvoren\u00e9 ozubenie a kompaktn\u00e9 mechanizmy, kde hluk nie je kon\u0161truk\u010dn\u00fdm obmedzen\u00edm. Ni\u017e\u0161ie uveden\u00e9 porovnanie pokr\u00fdva v\u0161etky rozmery, ktor\u00e9 s\u00fa d\u00f4le\u017eit\u00e9 pri v\u00fdbere medzi t\u00fdmito dvoma.<\/p>\n

<\/p>\n

Zapojenie zubov \u2013 z\u00e1kladn\u00e1 pr\u00ed\u010dina v\u0161etk\u00fdch rozdielov vo v\u00fdkone<\/h2>\n

Ka\u017ed\u00fd rozdiel medzi ozuben\u00e9 koles\u00e1 so \u0161pir\u00e1lov\u00fdm rezom<\/strong> a rovno rezan\u00e9 ozuben\u00e9 koles\u00e1 v kone\u010dnom d\u00f4sledku vypl\u00fdvaj\u00fa z jedin\u00e9ho geometrick\u00e9ho faktu: ako zub vstupuje a vystupuje zo z\u00f3ny z\u00e1beru.<\/p>\n

\"Porovnanie<\/p>\n

Kontaktn\u00e1 \u010diara vypoved\u00e1 cel\u00fd pr\u00edbeh \u2013 okam\u017eit\u00e1 a rovnobe\u017en\u00e1 s osou hriade\u013ea v priamom ozubenom kolese; diagon\u00e1lna a progres\u00edvna v \u0161pir\u00e1lovom ozubenom kolese.<\/p>\n

Ako sa zap\u00e1jaj\u00fa rovno rezan\u00e9 ozuben\u00e9 koles\u00e1<\/h3>\n

V priamom ozubenom kolese (\u010delnom ozubenom kolese) je \u010deln\u00e1 plocha zuba rovnobe\u017en\u00e1 s osou hriade\u013ea. V momente, ke\u010f p\u00e1r zubov vst\u00fapi do z\u00f3ny z\u00e1beru, kontakt sa objav\u00ed s\u00fa\u010dasne po celej \u0161\u00edrke \u010delnej plochy. Pren\u00e1\u0161an\u00e1 sila vysko\u010d\u00ed z nuly na maxim\u00e1lnu hodnotu v zlomku milisekundy a potom klesne sp\u00e4\u0165 na nulu, ke\u010f zub vyjde. Tento silov\u00fd impulz sa opakuje pri ka\u017edom rozstupe zubov \u2013 typicky 300 \u2013 3 000 Hz \u2013 a generuje charakteristick\u00e9 vysok\u00e9 kv\u00edlenie priamo\u010diarych ozuben\u00fdch kolies pri r\u00fdchlosti a vytv\u00e1ra dynamick\u00e9 pre\u0165a\u017eenie kore\u0148a zuba, ktor\u00e9 obmedzuje \u00fanavov\u00fa \u017eivotnos\u0165 aj maxim\u00e1lnu prev\u00e1dzkov\u00fa r\u00fdchlos\u0165.<\/p>\n

Ako sa zap\u00e1jaj\u00fa ozuben\u00e9 koles\u00e1 so \u0161pir\u00e1lov\u00fdm rezom<\/h3>\n

V ozuben\u00e9 koleso so \u0161pir\u00e1lov\u00fdm rezom<\/strong>, zub je naklonen\u00fd pod uhlom \u0161pir\u00e1ly \u03b2. Nov\u00fd p\u00e1r zubov za\u010d\u00edna kontakt v jednom bode na n\u00e1be\u017enej hrane. Kontaktn\u00e1 z\u00f3na sa zv\u00e4\u010d\u0161uje, tiahne sa diagon\u00e1lne cez cel\u00fa \u0161\u00edrku \u010delnej plochy, potom sa zmen\u0161uje a vystupuje na zadnej hrane. Vstup sily je postupn\u00fd, maxim\u00e1lne za\u0165a\u017eenie je rozlo\u017een\u00e9 medzi viacero s\u00fa\u010dasne sa dot\u00fdkaj\u00facich p\u00e1rov zubov a v\u00fdstup je rovnako hladk\u00fd. V\u00fdsledok: \u017eiadny silov\u00fd impulz, \u017eiadny budiaci skok v z\u00e1berovej frekvencii, \u017eiadne dynamick\u00e9 pre\u0165a\u017eenie. Fyzika progres\u00edvneho z\u00e1beru je priamym mechanizmom, ktor\u00fd stoj\u00ed za ka\u017edou kvantitat\u00edvnou v\u00fdhodou, ktor\u00fa maj\u00fa ozuben\u00e9 koles\u00e1 so \u0161pir\u00e1lov\u00fdm rezom oproti ozuben\u00fdm koles\u00e1m s rovn\u00fdm rezom.<\/p>\n

<\/p>\n

\u00dapln\u00e9 in\u017einierske porovnanie \u2013 ozuben\u00e9 koles\u00e1 so \u0161pir\u00e1lov\u00fdm rezom vs. ozuben\u00e9 koles\u00e1 so priamym rezom<\/h2>\n

Nasleduj\u00faca tabu\u013eka kvantifikuje rozdiel vo v\u00fdkone vo v\u0161etk\u00fdch dimenzi\u00e1ch, ktor\u00e9 s\u00fa d\u00f4le\u017eit\u00e9 pre kon\u0161trukt\u00e9ra prevodovky alebo in\u017einiera obstar\u00e1vania. Korea Ever-Power's ozuben\u00e9 koles\u00e1 so \u0161pir\u00e1lov\u00fdm rezom<\/a> s\u00fa vyr\u00e1ban\u00e9 pre br\u00fasenie pod\u013ea DIN triedy 3\u20139 v celom sortimente legovan\u00fdch ocel\u00ed a nehrdzavej\u00facich ocel\u00ed.<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
V\u00fdkonnostn\u00fd rozmer<\/th>\nOzuben\u00e9 koleso s priamym rezom (\u010deln\u00e9)<\/th>\n\u0160pir\u00e1lovit\u00fd rezn\u00fd ozuben\u00fd prevod<\/th>\n<\/tr>\n<\/thead>\n
Zapojenie zubov<\/td>\nOkam\u017eit\u00fd \u2013 cel\u00e1 \u0161\u00edrka plochy, rovnobe\u017en\u00e1 kontaktn\u00e1 \u010diara<\/td>\nProgres\u00edvne \u2013 diagon\u00e1lne \u0165ahanie od jedn\u00e9ho okraja k druh\u00e9mu<\/td>\n<\/tr>\n
Celkov\u00fd kontaktn\u00fd pomer \u03b5_\u03b3<\/td>\n1,2\u20131,6 (iba prie\u010dne; bez prekr\u00fdvaj\u00facej sa zlo\u017eky)<\/td>\n2,0\u20134,5 (prie\u010dne + prekrytie; \u0161k\u00e1ly s \u03b2 a \u0161\u00edrkou tv\u00e1re)<\/td>\n<\/tr>\n
S\u00fa\u010dasn\u00e9 p\u00e1ry zubov<\/td>\n1\u20132 p\u00e1ry, striedavo<\/td>\n2\u20135 p\u00e1rov, s\u00favisle rozmiestnen\u00fdch<\/td>\n<\/tr>\n
Hladina prev\u00e1dzkov\u00e9ho hluku<\/td>\nVysok\u00e1 \u2014 siln\u00fd t\u00f3n s frekvenciou siete; typicky 78 \u2013 85 dB(A) pri 1500 ot.\/min.<\/td>\no 8\u201312 dB(A) ni\u017e\u0161ie pri rovnak\u00fdch podmienkach r\u00fdchlosti a za\u0165a\u017eenia<\/td>\n<\/tr>\n
Kr\u00fatiaci moment (rovnak\u00e1 ve\u013ekos\u0165)<\/td>\nZ\u00e1kladn\u00e1 hodnota<\/td>\n+25 a\u017e +50% kv\u00f4li zdie\u013eaniu z\u00e1\u0165a\u017ee viacer\u00fdch p\u00e1rov<\/td>\n<\/tr>\n
Dynamick\u00fd s\u00fa\u010dinite\u013e za\u0165a\u017eenia K_v<\/td>\n1,3\u20131,8 pri miernej r\u00fdchlosti<\/td>\n1,05 \u2013 1,2 (br\u00fasen\u00e9); ni\u017e\u0161ie maxim\u00e1lne nap\u00e4tie v kore\u0148ovej vrstve zuba<\/td>\n<\/tr>\n
Maxim\u00e1lna r\u00fdchlos\u0165 na \u010diare sklonu<\/td>\nPraktick\u00fd limit ~10\u201315 m\/s pre aplik\u00e1cie citliv\u00e9 na hluk<\/td>\nDo 150 m\/s (zem, DIN trieda 3\u20134)<\/td>\n<\/tr>\n
Axi\u00e1lna sila<\/td>\nNula \u2013 negeneruje sa \u017eiadny axi\u00e1lny tlak<\/td>\nF_a = F_t \u00d7 tan \u03b2; riaden\u00e9 lo\u017eiskami alebo dvojitou \u0161pir\u00e1lovou konfigur\u00e1ciou<\/td>\n<\/tr>\n
\u00da\u010dinnos\u0165 siete<\/td>\n97\u201398%<\/td>\n98\u201399,5% (mlet\u00e9 \u200b\u200bvarianty); lep\u0161ia tvorba filmu EHL<\/td>\n<\/tr>\n
\u00danava pri oh\u00fdban\u00ed kore\u0148a zuba<\/td>\nVy\u0161\u0161ie \u0161pi\u010dkov\u00e9 nap\u00e4tie \u2013 menej p\u00e1rov zdie\u013eaj\u00facich z\u00e1\u0165a\u017e<\/td>\n25\u201340% ni\u017e\u0161ie \u0161pi\u010dkov\u00e9 nap\u00e4tie pri rovnakom pren\u00e1\u0161anom kr\u00fatiacom momente<\/td>\n<\/tr>\n
Kontaktn\u00e1 \u00fanava (jamkov\u00e1 tvorba)<\/td>\nZ\u00e1kladn\u00e1 l\u00ednia \u2013 obmedzen\u00e1 EHL filmom pri strednej r\u00fdchlosti<\/td>\n3\u20135\u00d7 dlh\u0161ia \u017eivotnos\u0165 proti jamkovej tvorbe v br\u00fasen\u00fdch variantoch (Ra \u2264 0,6 \u00b5m)<\/td>\n<\/tr>\n
Zlo\u017eitos\u0165 v\u00fdroby<\/td>\nNi\u017e\u0161ie \u2013 jednoduch\u0161ie nastavenie odva\u013eovania, \u017eiadne programovanie axi\u00e1lneho vedenia<\/td>\nMierne vy\u0161\u0161\u00ed \u2013 uhol \u0161pir\u00e1ly sa mus\u00ed po\u010das br\u00fasenia kontrolova\u0165<\/td>\n<\/tr>\n
Priemer ozuben\u00e9ho kolesa (rovn\u00e1 sa Mn, z)<\/td>\nd = Mn \u00d7 z<\/td>\nd = Mn \u00d7 z \/ cos \u03b2 \u2014 mierne v\u00e4\u010d\u0161ie pri rovnak\u00fdch Mn a z<\/td>\n<\/tr>\n
Relat\u00edvne n\u00e1klady (\u0161tandardn\u00e1 trieda)<\/td>\nZ\u00e1kladn\u00e1 hodnota<\/td>\n~8\u201315% vy\u0161\u0161ie; rozdiel sa zmen\u0161uje so zvy\u0161uj\u00facimi sa po\u017eiadavkami na presnos\u0165<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

<\/p>\n

Hluk a vibr\u00e1cie \u2013 pre\u010do je rozdiel tak\u00fd ve\u013ek\u00fd<\/h2>\n

V\u00fdhoda hluku 8\u201312 dB(A) ozuben\u00e9 koles\u00e1 so \u0161pir\u00e1lov\u00fdm rezom<\/strong> pri rovn\u00fdch ozuben\u00fdch koles\u00e1ch nie je margin\u00e1lna \u2013 na decibelovej stupnici v\u00e1\u017eenej A, ktor\u00e1 sa pou\u017e\u00edva na meranie hluku v pr\u00e1ci a automobiloch, sa 10 dB zhruba vn\u00edma ako polovi\u010dn\u00e1 hlasitos\u0165. Pochopenie toho, pre\u010do je rozdiel tak\u00fd ve\u013ek\u00fd, objas\u0148uje, kedy je invest\u00edcia do \u0161pir\u00e1lov\u00fdch ozuben\u00fdch kolies nevyhnutn\u00e1 v porovnan\u00ed s t\u00fdm, kedy s\u00fa rovn\u00e9 ozuben\u00e9 koles\u00e1 prijate\u013en\u00e9.<\/p>\n

\"\u010deln\u00e9<\/p>\n

Mechanizmus hluku priameho ozuben\u00e9ho kolesa<\/h3>\n

Hluk ozuben\u00e9ho kolesa je dominantne ovplyvnen\u00fd chybou prenosu \u2013 odch\u00fdlkou \u200b\u200bod dokonale rovnomern\u00e9ho ot\u00e1\u010dania v z\u00e1bere ozuben\u00fdch kolies. V priamo rezanom ozubenom kolese ka\u017ed\u00fd p\u00e1r zubov, ktor\u00fd vst\u00fapi do kontaktu, vytv\u00e1ra skok v pren\u00e1\u0161anej sile. Tento krok vyvol\u00e1va vibr\u00e1cie v tele ozuben\u00e9ho kolesa, hriade\u013eoch a puzdre na frekvencii z\u00e1beru (f_z = n \u00d7 z \/ 60, kde n s\u00fa ot\u00e1\u010dky za min\u00fatu a z je po\u010det zubov) a jej harmonick\u00fdch. Pri 1500 ot\u00e1\u010dkach za min\u00fatu s 20 zubami je frekvencia z\u00e1beru 500 Hz \u2013 v rozsahu maxim\u00e1lnej citlivosti \u013eudsk\u00e9ho sluchu. Impulzn\u00e9 budenie pri tejto frekvencii je v priamo rezan\u00fdch ozuben\u00fdch koles\u00e1ch prirodzene vysok\u00e9, bez oh\u013eadu na to, ako presne je profil zuba vyrezan\u00fd.<\/p>\n

Pre\u010do s\u00fa ozuben\u00e9 koles\u00e1 so \u0161pir\u00e1lov\u00fdm rezom tich\u0161ie<\/h3>\n

V ozuben\u00e9 koleso so \u0161pir\u00e1lov\u00fdm rezom<\/strong>, diagon\u00e1lna kontaktn\u00e1 \u010diara znamen\u00e1, \u017ee vstup sily je rozlo\u017een\u00fd na \u010das, ktor\u00fd je potrebn\u00fd na to, aby sa kontaktn\u00e1 z\u00f3na roz\u0161\u00edrila po \u0161\u00edrke plochy. Krok v pren\u00e1\u0161anej sile je nahraden\u00fd plynulou rampou. Amplit\u00fada budenia pri sie\u0165ovej frekvencii dramaticky kles\u00e1 \u2013 o 8 \u2013 12 dB(A) pri \u03b2 = 20 \u2013 25\u00b0. Uzemnenie ozuben\u00e9 koles\u00e1 so \u0161pir\u00e1lov\u00fdm rezom<\/strong> pri triede DIN 5 zni\u017euj\u00fa amplit\u00fadu chyby prenosu o \u010fal\u0161\u00edch 60\u201380% v porovnan\u00ed s ozuben\u00fdmi kolesami s odvalcovan\u00edm rovnak\u00e9ho modulu, preto\u017ee sa eliminuj\u00fa odch\u00fdlky profilu a st\u00fapania, ktor\u00e9 sp\u00f4sobuj\u00fa \u010fal\u0161ie zmeny sily. Kombinovan\u00fd v\u00fdsledok: br\u00fasen\u00e9 \u0161pir\u00e1lov\u00e9 ozuben\u00e9 koleso v triede DIN 5 m\u00f4\u017ee v rovnakej aplik\u00e1cii be\u017ea\u0165 o 15\u201318 dB(A) tich\u0161ie ako odvalcovan\u00e9 rovno rezan\u00e9 ozuben\u00e9 koleso.<\/p>\n

<\/p>\n

\u00danosnos\u0165 a \u00fanavov\u00e1 \u017eivotnos\u0165 \u2013 kvantitat\u00edvny rozdiel<\/h2>\n

\"aplik\u00e1cie<\/p>\n

\u0164a\u017ek\u00e9 priemyseln\u00e9 pohony \u2013 \u017eeriavov\u00e9 kladkostroje, odstrediv\u00e9 kompresory, stojany valcovn\u00ed \u2013 vy\u017eaduj\u00fa \u0161pir\u00e1lov\u00e9 ozuben\u00e9 koles\u00e1, preto\u017ee pren\u00e1\u0161aj\u00fa o 25 \u2013 501 TP3T v\u00e4\u010d\u0161\u00ed kr\u00fatiaci moment v rovnakom prevodovom rozsahu.<\/p>\n

Ohybov\u00e9 nap\u00e4tie kore\u0148a zuba<\/h3>\n

V\u00fdpo\u010det pevnosti v ohybe kore\u0148a zuba pod\u013ea normy ISO 6336 pou\u017e\u00edva faktor rozlo\u017eenia za\u0165a\u017eenia K_F, ktor\u00fd zoh\u013ead\u0148uje, ko\u013eko p\u00e1rov zubov s\u00fa\u010dasne zdie\u013ea za\u0165a\u017eenie. V priamom ozubenom kolese s kontaktn\u00fdm pomerom 1,5 je priemern\u00fd po\u010det s\u00fa\u010dasn\u00fdch p\u00e1rov 1,5 \u2013 ale \u0161pi\u010dkov\u00e9 za\u0165a\u017eenie st\u00e1le pren\u00e1\u0161a jeden p\u00e1r po\u010das \u010dasti ka\u017ed\u00e9ho cyklu. V ozuben\u00e9 koleso so \u0161pir\u00e1lov\u00fdm rezom<\/strong> Pri celkovom kontaktnom pomere 2,8 nie je za\u0165a\u017eenie nikdy s\u00fastreden\u00e9 na jeden p\u00e1r \u2013 v\u017edy je rozlo\u017een\u00e9 medzi 2 \u2013 3 p\u00e1ry. Maxim\u00e1lne ohybov\u00e9 nap\u00e4tie na koreni zuba sa pri rovnakom pren\u00e1\u0161anom kr\u00fatiacom momente zn\u00ed\u017ei o 25 \u2013 401 TP3T, \u010do priamo predl\u017euje \u00fanavov\u00fa \u017eivotnos\u0165 v ohybe.<\/p>\n

Kontaktn\u00e1 \u00fanava (jamkov\u00e1 oxid\u00e1cia) a EHL film<\/h3>\n

V kontaktnej z\u00f3ne zubov je k\u013e\u00fa\u010dov\u00fdm faktorom odolnosti vo\u010di bodkovaniu \u0161pecifick\u00e1 hr\u00fabka filmu \u03bb = h_min \/ Ra_combined. Br\u00fasen\u00fd materi\u00e1l ozuben\u00e9 koleso so \u0161pir\u00e1lov\u00fdm rezom<\/strong> pri Ra \u2264 0,6 \u00b5m dosahuje \u03bb > 2,0 (pln\u00fd film EHL) pri r\u00fdchlostiach na \u010diare rozstupu dr\u00e1\u017eok nad 5 m\/s so \u0161tandardn\u00fdm miner\u00e1lnym prevodov\u00fdm olejom \u2013 zabra\u0148uje sa kontaktu kovu s kovom a potla\u010duje sa inici\u00e1cia jamkovej tvorby. Ozuben\u00e9 koleso s priamym rezom odvalovac\u00edm fr\u00e9zovan\u00edm pri Ra \u2248 3,2 \u00b5m m\u00e1 typicky \u03bb < 1,0 za rovnak\u00fdch podmienok, pri\u010dom pracuje v re\u017eime zmie\u0161an\u00e9ho mazania, kde jamkov\u00e1 tvorba za\u010d\u00edna postupne. Tento rozdiel v stave povrchu v kombin\u00e1cii s ni\u017e\u0161\u00edm \u0161pi\u010dkov\u00fdm kontaktn\u00fdm tlakom \u0161pir\u00e1lov\u00e9 ozuben\u00e9 koles\u00e1<\/strong> (v\u010faka dlh\u0161ej kontaktnej \u010diare) vytv\u00e1ra 3\u20135-n\u00e1sobn\u00fa v\u00fdhodu \u017eivotnosti v bodovej kor\u00f3zii, ktor\u00e1 sa v praxi pozoruje medzi br\u00fasen\u00fdmi \u0161pir\u00e1lov\u00fdmi a odvalcovan\u00fdmi rovn\u00fdmi ozuben\u00fdmi kolesami pri rovnakom za\u0165a\u017een\u00ed a r\u00fdchlosti.<\/p>\n

<\/p>\n

Kedy si vybra\u0165 ozuben\u00e9 koles\u00e1 so \u0161pir\u00e1lov\u00fdm rezom \u2013 a kedy je posta\u010duj\u00faci rovn\u00fd rez<\/h2>\n
\n
\n

Zvo\u013ete ozuben\u00e9 koles\u00e1 so \u0161pir\u00e1lov\u00fdm rezom, ke\u010f:<\/p>\n