{"id":1273,"date":"2026-06-18T08:27:52","date_gmt":"2026-06-18T08:27:52","guid":{"rendered":"https:\/\/pto-gearbox.net\/?p=1273"},"modified":"2026-06-18T08:27:52","modified_gmt":"2026-06-18T08:27:52","slug":"pto-gearbox-bearing-selection","status":"publish","type":"post","link":"https:\/\/pto-gearbox.net\/cs\/pto-gearbox-bearing-selection\/","title":{"rendered":"V\u00fdb\u011br lo\u017eiska p\u0159evodovky PTO: Technick\u00e1 krit\u00e9ria"},"content":{"rendered":"
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V\u00fdb\u011br lo\u017eiska p\u0159evodovky PTO: Technick\u00e1 krit\u00e9ria<\/h1>\n

Lo\u017eiska jsou tich\u00fdm motorem uvnit\u0159 ka\u017ed\u00e9 p\u0159evodovky v\u00fdvodov\u00e9ho h\u0159\u00eddele \u2013 nesou ka\u017edou z\u00e1t\u011b\u017e v newtonu, absorbuj\u00ed ka\u017ed\u00fd r\u00e1z a p\u0159i spr\u00e1vn\u00e9 specifikaci vydr\u017e\u00ed d\u00e9le ne\u017e v\u0161echny ostatn\u00ed komponenty, ale p\u0159i poddimenzov\u00e1n\u00ed, zne\u010di\u0161t\u011bn\u00ed nebo nespr\u00e1vn\u00e9 instalaci se st\u00e1vaj\u00ed nejslab\u0161\u00edm \u010dl\u00e1nkem. P\u0159evodovka s dokonale kalen\u00fdmi ozuben\u00fdmi koly v p\u0159esn\u011b obroben\u00e9 sk\u0159\u00edni st\u00e1le p\u0159ed\u010dasn\u011b sel\u017ee, pokud lo\u017eiska nezvl\u00e1dnou kombinovan\u00e9 radi\u00e1ln\u00ed, axi\u00e1ln\u00ed a r\u00e1zov\u00e9 zat\u00ed\u017een\u00ed generovan\u00e9 b\u011bhem provozu na poli. V\u00fdb\u011br lo\u017eiska je technick\u00e9 rozhodnut\u00ed, kter\u00e9 ur\u010duje, zda p\u0159evodovka vydr\u017e\u00ed 500 nebo 5 000 hodin zem\u011bd\u011blsk\u00e9ho provozu.<\/p>\n

Promluvte si s na\u0161imi in\u017een\u00fdry<\/a><\/p>\n<\/div>\n<\/div>\n

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T\u0159i typy lo\u017eisek pro aplikace s p\u0159evodovkou PTO<\/h2>\n

Zem\u011bd\u011blsk\u00fd P\u0159evodovky PTO<\/a> Pou\u017e\u00edvaj\u00ed se t\u0159i hlavn\u00ed typy lo\u017eisek, z nich\u017e ka\u017ed\u00fd m\u00e1 odli\u0161n\u00e9 charakteristiky \u00fanosnosti, kter\u00e9 odpov\u00eddaj\u00ed r\u016fzn\u00fdm poloh\u00e1m a podm\u00ednk\u00e1m zat\u00ed\u017een\u00ed v p\u0159evodovce. Pochopen\u00ed toho, kter\u00fd typ lo\u017eiska kam pat\u0159\u00ed \u2013 a pro\u010d \u2013 je nezbytn\u00e9 jak pro specifikaci nov\u00fdch p\u0159evodovek, tak pro diagnostiku poruch lo\u017eisek v provozu.<\/p>\n

Ku\u017eel\u00edkov\u00e1 lo\u017eiska jsou dominantn\u00ed volbou pro pozice ku\u017eelov\u00fdch ozuben\u00fdch kol v zem\u011bd\u011blsk\u00fdch p\u0159evodovk\u00e1ch PTO. Jejich geometrie \u2013 ku\u017eelov\u00e9 v\u00e1le\u010dky uspo\u0159\u00e1dan\u00e9 mezi vnit\u0159n\u00ed a vn\u011bj\u0161\u00ed ob\u011b\u017enou dr\u00e1hou pod \u00fahlem k ose h\u0159\u00eddele \u2013 jim umo\u017e\u0148uje sou\u010dasn\u011b p\u0159en\u00e1\u0161et radi\u00e1ln\u00ed zat\u00ed\u017een\u00ed (kolmo k h\u0159\u00eddeli) i axi\u00e1ln\u00ed axi\u00e1ln\u00ed zat\u00ed\u017een\u00ed (pod\u00e9l osy h\u0159\u00eddele). Tato schopnost dvoj\u00edho zat\u00ed\u017een\u00ed je z\u00e1sadn\u00ed pro spir\u00e1lov\u00e1 ku\u017eelov\u00e1 ozuben\u00e1 kola, kter\u00e1 p\u0159i p\u0159enosu v\u00fdkonu generuj\u00ed zna\u010dn\u00e9 axi\u00e1ln\u00ed axi\u00e1ln\u00ed s\u00edly. Ku\u017eel\u00edkov\u00e1 lo\u017eiska se v\u017edy instaluj\u00ed v p\u00e1rech (uspo\u0159\u00e1d\u00e1n\u00ed \u010dely k sob\u011b nebo z\u00e1dy k sob\u011b) s \u0159\u00edzen\u00fdm p\u0159edp\u011bt\u00edm \u2013 m\u00edrn\u00fdm axi\u00e1ln\u00edm stla\u010den\u00edm, kter\u00e9 eliminuje vnit\u0159n\u00ed v\u016fli a zaji\u0161\u0165uje, \u017ee ob\u011b lo\u017eiska p\u0159edv\u00eddateln\u011b rozd\u011bluj\u00ed zat\u00ed\u017een\u00ed.<\/p>\n

Kuli\u010dkov\u00e1 lo\u017eiska s hlubokou dr\u00e1\u017ekou jsou nejjednodu\u0161\u0161\u00edm a cenov\u011b nejv\u00fdhodn\u011bj\u0161\u00edm typem lo\u017eiska. Nesou prim\u00e1rn\u011b radi\u00e1ln\u00ed zat\u00ed\u017een\u00ed s omezenou axi\u00e1ln\u00ed \u00fanosnost\u00ed (obvykle 25 a\u017e 35 procent jejich radi\u00e1ln\u00edho zat\u00ed\u017een\u00ed). V p\u0159evodovk\u00e1ch s v\u00fdvodov\u00fdm h\u0159\u00eddelem se kuli\u010dkov\u00e1 lo\u017eiska s hlubokou dr\u00e1\u017ekou pou\u017e\u00edvaj\u00ed pro lehce zat\u00ed\u017een\u00e9 pozice \u2013 vodic\u00ed lo\u017eiska, podp\u011bry nap\u00ednac\u00edch h\u0159\u00eddel\u00ed a pozice vstupn\u00edho h\u0159\u00eddele, kde geometrie ozuben\u00e9ho kola vytv\u00e1\u0159\u00ed minim\u00e1ln\u00ed axi\u00e1ln\u00ed axi\u00e1ln\u00ed s\u00edlu. D\u00edky n\u00edzk\u00e9mu koeficientu t\u0159en\u00ed a vysok\u00e9 rychlosti jsou vhodn\u00e1 pro pozice s vysok\u00fdmi ot\u00e1\u010dkami, ale jejich omezen\u00e1 axi\u00e1ln\u00ed \u00fanosnost je \u010din\u00ed nevhodn\u00fdmi pro pozice se spir\u00e1lov\u00fdmi ku\u017eelov\u00fdmi ozuben\u00fdmi koly, kde jsou axi\u00e1ln\u00ed s\u00edly zna\u010dn\u00e9.<\/p>\n

Kuli\u010dkov\u00e1 lo\u017eiska s koso\u00fahl\u00fdm stykem zauj\u00edmaj\u00ed st\u0159edn\u00ed cestu mezi ku\u017eel\u00edkov\u00fdmi a dr\u00e1\u017ekov\u00fdmi lo\u017eisky. Nesou kombinovan\u00e9 radi\u00e1ln\u00ed a axi\u00e1ln\u00ed zat\u00ed\u017een\u00ed (jako ku\u017eel\u00edkov\u00e9 v\u00e1le\u010dky), ale s ni\u017e\u0161\u00edm t\u0159en\u00edm a lep\u0161\u00edm v\u00fdkonem p\u0159i vysok\u00fdch rychlostech. Stejn\u011b jako ku\u017eel\u00edkov\u00e9 v\u00e1le\u010dky se instaluj\u00ed v p\u00e1rech s p\u0159edp\u011bt\u00edm. Kuli\u010dkov\u00e1 lo\u017eiska s koso\u00fahl\u00fdm stykem se pou\u017e\u00edvaj\u00ed v n\u011bkter\u00fdch pr\u00e9miov\u00fdch p\u0159evodovk\u00e1ch PTO pro pozice, kde existuje m\u00edrn\u00e9 axi\u00e1ln\u00ed zat\u00ed\u017een\u00ed, ale nen\u00ed vy\u017eadov\u00e1na pln\u00e1 \u00fanosnost ku\u017eel\u00edkov\u00fdch v\u00e1le\u010dk\u016f \u2013 nab\u00edzej\u00ed tak rovnov\u00e1hu mezi v\u00fdkonem a cenou mezi ostatn\u00edmi dv\u011bma typy.<\/p>\n

\"P\u0159esn\u00e1<\/div>\n

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Porovn\u00e1n\u00ed typ\u016f lo\u017eisek pro zem\u011bd\u011blsk\u00e9 p\u0159evodovky<\/h2>\n

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\n\n\n\n\n\n\n\n\n\n\n\n
Parametr<\/th>\nKu\u017eelov\u00fd v\u00e1lec<\/th>\nDeep Groove Ball<\/th>\nKuli\u010dkov\u00e9 s koso\u00fahl\u00fdm stykem<\/th>\n<\/tr>\n<\/thead>\n
Radi\u00e1ln\u00ed \u00fanosnost<\/td>\nVelmi vysok\u00e1<\/td>\nM\u00edrn\u00fd<\/td>\nSt\u0159edn\u011b vysok\u00e1<\/td>\n<\/tr>\n
Axi\u00e1ln\u00ed \u00fanosnost<\/td>\nVysok\u00e1 (jeden sm\u011br na lo\u017eisko)<\/td>\nOmezen\u00e9 (25\u201335% radi\u00e1ln\u00edho)<\/td>\nSt\u0159edn\u011b vysok\u00e1<\/td>\n<\/tr>\n
Tolerance n\u00e1razu\/ot\u0159es\u016f<\/td>\nVynikaj\u00edc\u00ed (kontakt s vodi\u010dem)<\/td>\nOmezen\u00fd (bodov\u00fd kontakt)<\/td>\nDobr\u00fd<\/td>\n<\/tr>\n
Sou\u010dinitel t\u0159en\u00ed<\/td>\nSt\u0159edn\u00ed (0,0018)<\/td>\nN\u00edzk\u00e1 (0,0015)<\/td>\nN\u00edzk\u00e1 (0,0012)<\/td>\n<\/tr>\n
Rychlostn\u00ed kapacita<\/td>\nM\u00edrn\u00fd<\/td>\nVysok\u00fd<\/td>\nVysok\u00fd<\/td>\n<\/tr>\n
Vy\u017eadov\u00e1no p\u0159edp\u011bt\u00ed<\/td>\nAno (p\u00e1rov\u00e1 instalace)<\/td>\n\u017d\u00e1dn\u00fd<\/td>\nAno (p\u00e1rov\u00e1 instalace)<\/td>\n<\/tr>\n
Nejlep\u0161\u00ed poloha p\u0159evodovky PTO<\/td>\nKu\u017eelov\u00e9 ozuben\u00e9 h\u0159\u00eddele (pastorek, ozuben\u00fd v\u011bnec)<\/td>\nVstupn\u00ed h\u0159\u00eddel, nap\u00ednac\u00ed h\u0159\u00eddele<\/td>\nV\u00fdstupn\u00ed h\u0159\u00eddele se st\u0159edn\u00edm axi\u00e1ln\u00edm tlakem<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
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\"Typy<\/div>\n

Konfigurace p\u0159evodovky PTO \u2013 ka\u017ed\u00e1 poloha lo\u017eiska mus\u00ed b\u00fdt p\u0159izp\u016fsobena specifick\u00e9mu typu zat\u00ed\u017een\u00ed (radi\u00e1ln\u00ed, axi\u00e1ln\u00ed, kombinovan\u00e9) generovan\u00e9mu uspo\u0159\u00e1d\u00e1n\u00edm p\u0159evodu v dan\u00e9m m\u00edst\u011b<\/p>\n<\/div>\n

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V\u00fdpo\u010det \u017eivotnosti lo\u017eiska L10: Co znamenaj\u00ed \u010d\u00edsla<\/h2>\n

\u017divotnost lo\u017eiska je vyj\u00e1d\u0159ena jako \u017eivotnost L10 \u2013 po\u010det provozn\u00edch hodin, po kter\u00e9 bude lo\u017eisko 90% z populace identick\u00fdch lo\u017eisek za identick\u00fdch podm\u00ednek st\u00e1le fungovat. Jedn\u00e1 se o statistickou p\u0159edpov\u011b\u010f, nikoli o z\u00e1ruku pro \u017e\u00e1dn\u00e9 jednotliv\u00e9 lo\u017eisko. Z\u00e1kladn\u00ed v\u00fdpo\u010det L10 vyu\u017e\u00edv\u00e1 dynamickou \u00fanosnost lo\u017eiska (C), skute\u010dn\u00e9 aplikovan\u00e9 zat\u00ed\u017een\u00ed (P) a ot\u00e1\u010dky k odhadu o\u010dek\u00e1van\u00e9 \u017eivotnosti v hodin\u00e1ch.<\/p>\n

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Z\u00e1kladn\u00ed vzorec L10 Life<\/p>\n

L10 = (C\/P)^p \u00d7 10^6 \/ (60 \u00d7 n)<\/p>\n

C = dynamick\u00e1 \u00fanosnost (kN) | P = ekvivalentn\u00ed dynamick\u00e9 zat\u00ed\u017een\u00ed (kN)
\nn = ot\u00e1\u010dky (ot.\/min.) | p = 3 pro kuli\u010dkov\u00e1 lo\u017eiska, 10\/3 pro v\u00e1le\u010dkov\u00e1 lo\u017eiska<\/p>\n<\/div>\n

Pro typick\u00fd st\u0159edn\u011b n\u00e1ro\u010dn\u00fd provoz P\u0159evodovka PTO<\/strong> P\u0159i vstupn\u00edch ot\u00e1\u010dk\u00e1ch 540 ot.\/min a spr\u00e1vn\u011b zvolen\u00e9m ku\u017eel\u00edkov\u00e9m lo\u017eisku na h\u0159\u00eddeli pastorku dosahuje dob\u0159e navr\u017een\u00e9 uspo\u0159\u00e1d\u00e1n\u00ed lo\u017eisek \u017eivotnosti L10 5 000 a\u017e 10 000 hodin \u2013 co\u017e sta\u010d\u00ed na 10 a\u017e 20 let zem\u011bd\u011blsk\u00e9ho provozu p\u0159i 500 hodin\u00e1ch ro\u010dn\u011b. Skute\u010dn\u00e1 \u017eivotnost lo\u017eiska na poli v\u0161ak kriticky z\u00e1vis\u00ed na podm\u00ednk\u00e1ch, kter\u00e9 z\u00e1kladn\u00ed vzorec L10 nezohled\u0148uje: kontaminace (pr\u016fnik prachu a vody), kvalita maz\u00e1n\u00ed (viskozita, \u010distota a interval v\u00fdm\u011bny oleje), p\u0159esnost mont\u00e1\u017ee (p\u0159edp\u011bt\u00ed lo\u017eiska a tolerance otvoru sk\u0159\u00edn\u011b) a r\u00e1zov\u00e9 zat\u00ed\u017een\u00ed (r\u00e1zov\u00e9 zat\u00ed\u017een\u00ed od n\u00e1raz\u016f n\u00e1\u0159ad\u00ed, kter\u00e9 2 a\u017e 5kr\u00e1t p\u0159ekro\u010d\u00ed vypo\u010d\u00edtan\u00e9 ust\u00e1len\u00e9 zat\u00ed\u017een\u00ed).<\/p>\n

V\u00fdpo\u010det upraven\u00e9 \u017eivotnosti L10a zahrnuje modifika\u010dn\u00ed faktory pro \u00farove\u0148 spolehlivosti, mazac\u00ed podm\u00ednky a zne\u010di\u0161t\u011bn\u00ed. V typick\u00fdch podm\u00ednk\u00e1ch zem\u011bd\u011blsk\u00e9 p\u0159evodovky PTO (st\u0159edn\u00ed zne\u010di\u0161t\u011bn\u00ed, miner\u00e1ln\u00ed p\u0159evodov\u00fd olej, vibrace na poli) m\u016f\u017ee upraven\u00e1 \u017eivotnost L10a \u010dinit pouze 30 a\u017e 50 procent z\u00e1kladn\u00edho v\u00fdpo\u010dtu L10. Toto sn\u00ed\u017een\u00ed v\u00fdkonu v re\u00e1ln\u00e9m provozu vysv\u011btluje, pro\u010d je kvalita lo\u017eisek tak d\u016fle\u017eit\u00e1 \u2013 lo\u017eisko prvn\u00ed \u00farovn\u011b s u\u017e\u0161\u00edmi vnit\u0159n\u00edmi tolerancemi a \u010dist\u0161\u00ed ocel\u00ed dosahuje vy\u0161\u0161\u00edho procenta sv\u00e9 vypo\u010d\u00edtan\u00e9 \u017eivotnosti L10 za nep\u0159\u00edzniv\u00fdch podm\u00ednek ne\u017e b\u011b\u017en\u00e9 lo\u017eisko s \u0161ir\u0161\u00edmi tolerancemi a v\u011bt\u0161\u00edm mno\u017estv\u00edm ocelov\u00fdch vm\u011bstk\u016f. Komplexn\u00ed pokyny k rozpozn\u00e1n\u00ed v\u010dasn\u00fdch p\u0159\u00edznak\u016f po\u0161kozen\u00ed lo\u017eiska d\u0159\u00edve, ne\u017e zp\u016fsob\u00ed katastrofick\u00e9 selh\u00e1n\u00ed p\u0159evodovky, naleznete v na\u0161\u00ed technick\u00e9 p\u0159\u00edru\u010dce. Anal\u00fdza poruchy p\u0159evodovky v\u00fdvodov\u00e9ho h\u0159\u00eddele<\/a>.<\/p>\n

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P\u0159edp\u011bt\u00ed lo\u017eiska: Kritick\u00e9 nastaven\u00ed, kter\u00e9 v\u011bt\u0161ina repas\u00e9r\u016f prov\u00e1d\u00ed \u0161patn\u011b<\/h2>\n

Ku\u017eel\u00edkov\u00e1 lo\u017eiska v ku\u017eelov\u00e9 p\u0159evodovce mus\u00ed b\u00fdt instalov\u00e1na se specifick\u00fdm axi\u00e1ln\u00edm p\u0159edp\u011bt\u00edm \u2013 m\u00edrnou tlakovou silou, kter\u00e1 eliminuje vnit\u0159n\u00ed v\u016fli a zaji\u0161\u0165uje, \u017ee ob\u011b lo\u017eiska v p\u00e1ru sd\u00edlej\u00ed zat\u00ed\u017een\u00ed. P\u0159\u00edli\u0161 mal\u00e9 p\u0159edp\u011bt\u00ed (voln\u00e1 lo\u017eiska) umo\u017e\u0148uje axi\u00e1ln\u00ed v\u016fli, kter\u00e1 zp\u016fsobuje posun z\u00e1b\u011bru ozuben\u00fdch kol pod zat\u00ed\u017een\u00edm, co\u017e zp\u016fsobuje koncentrovan\u00e9 zat\u00ed\u017een\u00ed zub\u016f, zv\u00fd\u0161en\u00fd hluk a zrychlen\u00e9 opot\u0159eben\u00ed ozuben\u00fdch kol i lo\u017eisek. P\u0159\u00edli\u0161 velk\u00e9 p\u0159edp\u011bt\u00ed (p\u0159et\u00ed\u017een\u00e1 lo\u017eiska) vytv\u00e1\u0159\u00ed nadm\u011brn\u00e9 t\u0159ec\u00ed teplo, sni\u017euje \u017eivotnost lo\u017eisek p\u0159et\u00ed\u017een\u00edm v\u00e1le\u010dk\u016f a m\u016f\u017ee zp\u016fsobit zad\u0159en\u00ed lo\u017eiska b\u011bhem tepeln\u00e9 rozta\u017enosti, ke kter\u00e9 doch\u00e1z\u00ed p\u0159i zah\u0159\u00edv\u00e1n\u00ed p\u0159evodovky na provozn\u00ed teplotu.<\/p>\n

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\ud83d\udd27 Ov\u011b\u0159en\u00ed spr\u00e1vn\u00e9ho p\u0159edb\u011b\u017en\u00e9ho na\u010dten\u00ed<\/p>\n

Zm\u011b\u0159te p\u0159edp\u011bt\u00ed lo\u017eiska metodou odvalovac\u00edho momentu: s demontovan\u00fdm ozuben\u00fdm kolem ot\u00e1\u010dejte h\u0159\u00eddel\u00ed ru\u010dn\u011b a zm\u011b\u0159te moment pot\u0159ebn\u00fd k udr\u017een\u00ed ot\u00e1\u010den\u00ed pomoc\u00ed momentov\u00e9ho kl\u00ed\u010de s nosn\u00edkem. U v\u011bt\u0161iny zem\u011bd\u011blsk\u00e1 p\u0159evodovka<\/strong> U pastorkov\u00fdch h\u0159\u00eddel\u00ed je c\u00edlov\u00fd valiv\u00fd moment pro nov\u00e1 lo\u017eiska 1 a\u017e 3 Nm \u2013 tak akor\u00e1t, aby byl odpor c\u00edtit p\u0159i ru\u010dn\u00edm ot\u00e1\u010den\u00ed, ale ne takov\u00fd, aby br\u00e1nil plynul\u00e9mu a nep\u0159etr\u017eit\u00e9mu ot\u00e1\u010den\u00ed. P\u0159esnou hodnotu p\u0159edp\u011bt\u00ed pro ka\u017edou polohu lo\u017eiska naleznete ve specifikaci v\u00fdrobce p\u0159evodovky.<\/p>\n<\/div>\n

Mechanismus nastaven\u00ed p\u0159edp\u011bt\u00ed se li\u0161\u00ed podle konstrukce p\u0159evodovky. V\u011bt\u0161ina zem\u011bd\u011blsk\u00fdch p\u0159evodovek PTO pou\u017e\u00edv\u00e1 mezi vn\u011bj\u0161\u00edm krou\u017ekem lo\u017eiska a osazen\u00edm otvoru sk\u0159\u00edn\u011b podlo\u017eky \u2013 p\u0159id\u00e1n\u00ed podlo\u017eek sni\u017euje p\u0159edp\u011bt\u00ed (zv\u011bt\u0161uje v\u016fli), zat\u00edmco odstran\u011bn\u00ed podlo\u017eek p\u0159edp\u011bt\u00ed zvy\u0161uje. N\u011bkter\u00e9 konstrukce pou\u017e\u00edvaj\u00ed na h\u0159\u00eddeli z\u00e1vitovou nastavovac\u00ed matici, kter\u00e1 stla\u010duje vnit\u0159n\u00ed krou\u017eek lo\u017eiska pro nastaven\u00ed p\u0159edp\u011bt\u00ed. V obou p\u0159\u00edpadech mus\u00ed b\u00fdt p\u0159edp\u011bt\u00ed nastaveno s lo\u017eisky a sk\u0159\u00edn\u00ed p\u0159i okoln\u00ed teplot\u011b \u2013 tepeln\u00e1 rozta\u017enost b\u011bhem provozu zvy\u0161uje p\u0159edp\u011bt\u00ed o p\u0159edv\u00eddatelnou hodnotu, kterou v\u00fdrobce zohled\u0148uje ve sv\u00e9 specifikaci.<\/p>\n

\"D\u00edlna<\/div>\n

<\/p>\n

Ut\u011bsn\u011bn\u00e1 vs. otev\u0159en\u00e1 lo\u017eiska: Kdy si vybrat kter\u00e9 z nich<\/h2>\n

Otev\u0159en\u00e1 lo\u017eiska se pro maz\u00e1n\u00ed spol\u00e9haj\u00ed na olejovou l\u00e1ze\u0148 p\u0159evodovky a na t\u011bsn\u011bn\u00ed sk\u0159\u00edn\u011b, kter\u00e1 zabra\u0148uj\u00ed vniknut\u00ed ne\u010distot. Jsou standardn\u00ed volbou pro p\u0159evodov\u00e9 pozice uvnit\u0159 sk\u0159\u00edn\u00ed p\u0159evodovek pln\u011bn\u00fdch olejem, proto\u017ee p\u0159evodov\u00fd olej zaji\u0161\u0165uje jak maz\u00e1n\u00ed, tak chlazen\u00ed \u2013 pou\u017eit\u00ed ut\u011bsn\u011bn\u00e9ho lo\u017eiska uvnit\u0159 olejov\u00e9 l\u00e1zn\u011b nem\u00e1 \u017e\u00e1dnou v\u00fdhodu a integrovan\u00e1 t\u011bsn\u011bn\u00ed ut\u011bsn\u011bn\u00e9ho lo\u017eiska ve skute\u010dnosti omezuj\u00ed tok oleje k valiv\u00fdm t\u011bles\u016fm.<\/p>\n

Ut\u011bsn\u011bn\u00e1 (nebo st\u00edn\u011bn\u00e1) lo\u017eiska obsahuj\u00ed vlastn\u00ed zdroj maziva a jsou chr\u00e1n\u011bna integrovan\u00fdmi kontaktn\u00edmi t\u011bsn\u011bn\u00edmi nebo bezkontaktn\u00edmi kryty. Pou\u017e\u00edvaj\u00ed se v poloh\u00e1ch mimo hlavn\u00ed olejovou l\u00e1ze\u0148 \u2013 extern\u00ed stojat\u00e1 lo\u017eiska nesouc\u00ed pr\u016fchoz\u00ed h\u0159\u00eddele, lo\u017eiska v\u0159eten lopatek vystaven\u00e1 vlivu prost\u0159ed\u00ed a polohy pomocn\u00fdch h\u0159\u00eddel\u00ed, kde st\u0159\u00edkaj\u00edc\u00ed olej z ozuben\u00e9ho soukol\u00ed nedosahuje lo\u017eiska. Ut\u011bsn\u011bn\u00e1 lo\u017eiska v exponovan\u00fdch poloh\u00e1ch by m\u011bla b\u00fdt domaz\u00e1vateln\u00e1 (vybaven\u00e1 maznic\u00ed hlavic\u00ed) pro pravideln\u00e9 dopl\u0148ov\u00e1n\u00ed maziva nebo by m\u011bla b\u00fdt specifikov\u00e1na jako ut\u011bsn\u011bn\u00e1 na dobu \u017eivotnosti, pokud se konstruk\u010dn\u00ed \u017eivotnost shoduje s o\u010dek\u00e1vanou \u017eivotnost\u00ed lo\u017eiska za dan\u00fdch podm\u00ednek pou\u017eit\u00ed nebo ji p\u0159ekra\u010duje.<\/p>\n

Kvalitn\u00ed P\u0159evodovka PTO<\/a> V\u00fdrobci specifikuj\u00ed spr\u00e1vn\u00fd typ lo\u017eiska, jakost a zp\u016fsob maz\u00e1n\u00ed pro ka\u017edou pozici v p\u0159evodovce a tyto specifikace dokumentuj\u00ed v mont\u00e1\u017en\u00edm v\u00fdkresu. Kontaktujte n\u00e1\u0161 technick\u00fd t\u00fdm<\/a> specifikace lo\u017eisek pro jak\u00fdkoli model p\u0159evodovky. Pro integrovan\u00e9 V\u00fdvodov\u00fd h\u0159\u00eddel<\/a> a zem\u011bd\u011blsk\u00e1 p\u0159evodovka<\/a> D\u00edky bal\u00ed\u010dk\u016fm s odpov\u00eddaj\u00edc\u00edmi specifikacemi lo\u017eisek v cel\u00e9m hnac\u00edm \u00fastroj\u00ed n\u00e1\u0161 technick\u00fd t\u00fdm zaji\u0161\u0165uje konzistentn\u00ed kvalitu lo\u017eisek od \u010depu v\u00fdvodov\u00e9ho h\u0159\u00eddele traktoru, p\u0159es p\u0159evodovku a\u017e po v\u00fdstup n\u00e1\u0159ad\u00ed.<\/p>\n

\"\u00dahlov\u00e1<\/div>\n

<\/p>\n

Rozpozn\u00e1n\u00ed zp\u016fsobu selh\u00e1n\u00ed lo\u017eiska: \u010cten\u00ed po\u0161kozen\u00ed<\/h2>\n

Ka\u017ed\u00e1 porucha lo\u017eiska vypr\u00e1v\u00ed p\u0159\u00edb\u011bh o tom, co se pokazilo, a \u010dten\u00ed vzoru po\u0161kozen\u00ed vadn\u00e9ho lo\u017eiska identifikuje hlavn\u00ed p\u0159\u00ed\u010dinu, aby bylo mo\u017en\u00e9 ji opravit d\u0159\u00edve, ne\u017e stejn\u00fd osud potk\u00e1 n\u00e1hradn\u00ed lo\u017eisko. \u010cty\u0159i prim\u00e1rn\u00ed re\u017eimy poruchy p\u0159edstavuj\u00ed v\u00edce ne\u017e 90 procent poruch lo\u017eisek v zem\u011bd\u011blsk\u00fdch p\u0159evodovk\u00e1ch, ka\u017ed\u00fd s odli\u0161n\u00fdm vizu\u00e1ln\u00edm podpisem.<\/p>\n

\u00danavov\u00e9 odlupov\u00e1n\u00ed se projevuje jako mal\u00e9 d\u016flky nebo vlo\u010dky na povrchu ob\u011b\u017en\u00e9 dr\u00e1hy, obvykle za\u010d\u00ednaj\u00edc\u00ed u podpovrchov\u00fdch vm\u011bstk\u016f v oceli lo\u017eiska a postupuj\u00edc\u00ed k viditeln\u00e9mu po\u0161kozen\u00ed povrchu, jak se materi\u00e1l odd\u011bluje. Odlupov\u00e1n\u00ed je norm\u00e1ln\u00edm zp\u016fsobem selh\u00e1n\u00ed na konci \u017eivotnosti spr\u00e1vn\u011b specifikovan\u00e9ho a \u0159\u00e1dn\u011b udr\u017eovan\u00e9ho lo\u017eiska \u2013 signalizuje, \u017ee lo\u017eisko dos\u00e1hlo sv\u00e9 vypo\u010d\u00edtan\u00e9 meze \u00fanavy. Pokud k odlupov\u00e1n\u00ed dojde dlouho p\u0159ed o\u010dek\u00e1vanou \u017eivotnost\u00ed L10, nejpravd\u011bpodobn\u011bj\u0161\u00edmi p\u0159\u00ed\u010dinami jsou p\u0159et\u00ed\u017een\u00ed (aplikace p\u0159ekra\u010duje dynamickou \u00fanosnost lo\u017eiska), kontaminace (abrazivn\u00ed \u010d\u00e1stice urychlily po\u0161kozen\u00ed podpovrchov\u00fdm nap\u011bt\u00edm) nebo n\u00edzk\u00e1 kvalita oceli (nadm\u011brn\u00e9 nekovov\u00e9 vm\u011bstky p\u016fsobily jako m\u00edsta p\u0159ed\u010dasn\u00e9ho vzniku \u00fanavy).<\/p>\n

Brinelling se projevuje jako rovnom\u011brn\u011b rozm\u00edst\u011bn\u00e9 vrypy v ob\u011b\u017en\u00e9 dr\u00e1ze odpov\u00eddaj\u00edc\u00ed rozte\u010di v\u00e1le\u010dk\u016f nebo kuli\u010dek. Je zp\u016fsoben r\u00e1zov\u00fdm zat\u00ed\u017een\u00edm, kdy\u017e je lo\u017eisko v klidu nebo kmitaj\u00edc\u00ed \u2013 valiv\u00e1 t\u011blesa jsou r\u00e1zovou silou zatla\u010dov\u00e1na do povrchu ob\u011b\u017en\u00e9 dr\u00e1hy a zanech\u00e1v\u00e1 trval\u00e9 vrypy, kter\u00e9 b\u011bhem n\u00e1sledn\u00e9 rotace generuj\u00ed hluk a vibrace. V zem\u011bd\u011blsk\u00fdch p\u0159evodovk\u00e1ch je brinelling obvykle d\u016fsledkem n\u00e1raz\u016f n\u00e1\u0159ad\u00ed (n\u00e1razy kamen\u016f, st\u0159ety se zmrzl\u00fdm materi\u00e1lem), kter\u00e9 p\u0159en\u00e1\u0161ej\u00ed siln\u00e9 r\u00e1zov\u00e9 zat\u00ed\u017een\u00ed p\u0159es ozuben\u00e9 soukol\u00ed do lo\u017eisek. Modernizace na lo\u017eiska s vy\u0161\u0161\u00ed statickou \u00fanosnost\u00ed je technick\u00fdm \u0159e\u0161en\u00edm pro aplikace s \u010dast\u00fdmi n\u00e1razy.<\/p>\n

Adhezn\u00ed opot\u0159eben\u00ed (naz\u00fdvan\u00e9 tak\u00e9 rozmaz\u00e1n\u00ed nebo od\u011br) se projevuje jako drsn\u00e9, roztrhan\u00e9 skvrny na povrchu ob\u011b\u017en\u00fdch drah nebo v\u00e1le\u010dk\u016f. Doch\u00e1z\u00ed k n\u011bmu, kdy\u017e se mazac\u00ed film rozpadne vlivem extr\u00e9mn\u00edho tlaku nebo vysok\u00e9 teploty, co\u017e umo\u017en\u00ed kontakt kovu na kov mezi valiv\u00fdmi t\u011blesy a ob\u011b\u017en\u00fdmi drahami. Mezi p\u0159\u00ed\u010diny pat\u0159\u00ed nedostate\u010dn\u00e1 hladina oleje (nej\u010dast\u011bj\u0161\u00ed), nespr\u00e1vn\u00e1 viskozita oleje (p\u0159\u00edli\u0161 \u0159\u00eddk\u00fd pro provozn\u00ed teplotu) nebo dlouhodob\u00fd provoz p\u0159i vysok\u00e9 teplot\u011b bez dostate\u010dn\u00e9ho chlazen\u00ed. Adhezn\u00ed opot\u0159eben\u00ed postupuje rychle, jakmile za\u010dne, proto\u017ee po\u0161kozen\u00fd povrch generuje teplo a ne\u010distoty, kter\u00e9 urychluj\u00ed dal\u0161\u00ed po\u0161kozen\u00ed.<\/p>\n

Korozn\u00ed lept\u00e1n\u00ed se projevuje jako \u010dervenohn\u011bd\u00e9 zabarven\u00ed a m\u011blk\u00e9 d\u016flky na povrchu ob\u011b\u017en\u00e9 dr\u00e1hy. Je zp\u016fsobeno kontaminac\u00ed p\u0159evodov\u00e9ho oleje vodou \u2013 i 0,1 procenta obsahu vody m\u016f\u017ee vyvolat lept\u00e1n\u00ed na ocelov\u00fdch povr\u0161\u00edch lo\u017eisek. V zem\u011bd\u011blsk\u00e9m prost\u0159ed\u00ed se voda dost\u00e1v\u00e1 do p\u0159evodovek opot\u0159ebovan\u00fdmi t\u011bsn\u011bn\u00edmi h\u0159\u00eddel\u00ed b\u011bhem tlakov\u00e9ho myt\u00ed, vystaven\u00ed de\u0161ti a kondenzac\u00ed v d\u016fsledku teplotn\u00edch cykl\u016f (p\u0159evodovka se b\u011bhem provozu zah\u0159\u00edv\u00e1 a p\u0159es noc ochlazuje, \u010d\u00edm\u017e nas\u00e1v\u00e1 vlhk\u00fd vzduch odvzdu\u0161\u0148ovac\u00edm otvorem, jak se objem oleje zmen\u0161uje). Prevence korozn\u00edho lept\u00e1n\u00ed vy\u017eaduje udr\u017eov\u00e1n\u00ed \u00fa\u010dinn\u00fdch t\u011bsn\u011bn\u00ed h\u0159\u00eddel\u00ed, pou\u017e\u00edv\u00e1n\u00ed ut\u011bsn\u011bn\u00fdch nebo vysou\u0161ec\u00edch odvzdu\u0161\u0148ovac\u00edch otvor\u016f a pravidelnou v\u00fdm\u011bnu oleje, aby se odstranila nahromad\u011bn\u00e1 voda d\u0159\u00edve, ne\u017e dos\u00e1hne \u0161kodliv\u00fdch koncentrac\u00ed.<\/p>\n

<\/p>\n

Ochrana p\u0159ed kontaminac\u00ed: Nejv\u011bt\u0161\u00ed hrozba pro \u017eivotnost lo\u017eisek<\/h2>\n

Kontaminace \u2013 jak \u010d\u00e1stice (prach, ne\u010distoty, kovov\u00e9 \u00falomky z opot\u0159eben\u00ed), tak vlhkost (voda z kondenzace, de\u0161t\u011b nebo tlakov\u00e9ho myt\u00ed) \u2013 je nej\u010dast\u011bj\u0161\u00ed p\u0159\u00ed\u010dinou p\u0159ed\u010dasn\u00e9ho selh\u00e1n\u00ed lo\u017eisek v zem\u011bd\u011blsk\u00fdch p\u0159evodovk\u00e1ch. Studie hlavn\u00edch v\u00fdrobc\u016f lo\u017eisek d\u016fsledn\u011b ukazuj\u00ed, \u017ee 50 a\u017e 70 procent selh\u00e1n\u00ed zem\u011bd\u011blsk\u00fdch lo\u017eisek souvis\u00ed s kontaminac\u00ed, nikoli se zat\u00ed\u017een\u00edm. Lo\u017eisko, kter\u00e9 by v \u010dist\u00e9m laboratorn\u00edm prost\u0159ed\u00ed dos\u00e1hlo 10 000 hodin, m\u016f\u017ee v typick\u00e9 zem\u011bd\u011blsk\u00e9 p\u0159evodovce se st\u0159edn\u00ed \u00farovn\u00ed kontaminace selhat za 2 000 hodin \u2013 a v siln\u011b kontaminovan\u00e9 p\u0159evodovce pracuj\u00edc\u00ed v pra\u0161n\u00e9m nebo mokr\u00e9m prost\u0159ed\u00ed bez dostate\u010dn\u00e9ho t\u011bsn\u011bn\u00ed ji\u017e za 500 hodin.<\/p>\n

Strategie kontroly kontaminace lo\u017eisek p\u0159evodovek v\u00fdvodov\u00e9ho h\u0159\u00eddele funguje na t\u0159ech \u00farovn\u00edch: vylou\u010den\u00ed (zabr\u00e1n\u011bn\u00ed vniknut\u00ed kontaminant\u016f do p\u0159evodovky prost\u0159ednictv\u00edm \u00fa\u010dinn\u00fdch t\u011bsn\u011bn\u00ed h\u0159\u00eddele, t\u011bsn\u011bn\u00ed sk\u0159\u00edn\u011b a ut\u011bsn\u011bn\u00fdch odvzdu\u0161\u0148ovac\u00edch ventil\u016f), odstran\u011bn\u00ed (pravideln\u00e1 v\u00fdm\u011bna oleje za \u00fa\u010delem odstran\u011bn\u00ed kontaminant\u016f, kter\u00e9 pronikaj\u00ed t\u011bsn\u011bn\u00edmi \u2013 ka\u017ed\u00fdch 200 a\u017e 500 hodin v z\u00e1vislosti na provozn\u00edm prost\u0159ed\u00ed) a monitorov\u00e1n\u00ed (pravideln\u00e1 anal\u00fdza vzork\u016f oleje za \u00fa\u010delem m\u011b\u0159en\u00ed po\u010dtu \u010d\u00e1stic, obsahu vody a koncentrac\u00ed kov\u016f zp\u016fsoben\u00fdch opot\u0159eben\u00edm, co\u017e umo\u017e\u0148uje v\u010dasnou detekci zhor\u0161en\u00ed stavu t\u011bsn\u011bn\u00ed nebo abnorm\u00e1ln\u00edho vnit\u0159n\u00edho opot\u0159eben\u00ed d\u0159\u00edve, ne\u017e se po\u0161kozen\u00ed lo\u017eiska stane katastrof\u00e1ln\u00edm). U jak\u00e9koli zem\u011bd\u011blsk\u00e9 p\u0159evodovky provozovan\u00e9 v\u00edce ne\u017e 200 hodin ro\u010dn\u011b je zaveden\u00ed v\u0161ech t\u0159\u00ed \u00farovn\u00ed kontroly kontaminace nejhospod\u00e1rn\u011bj\u0161\u00ed dostupnou investic\u00ed do \u00fadr\u017eby \u2013 prodlu\u017euje \u017eivotnost lo\u017eiska 2 a\u017e 5kr\u00e1t ve srovn\u00e1n\u00ed se zanedbanou jednotkou.<\/p>\n

<\/p>\n

\u010casto kladen\u00e9 ot\u00e1zky<\/h2>\n
\n
\nJak\u00e1 lo\u017eiska se pou\u017e\u00edvaj\u00ed v p\u0159evodovk\u00e1ch PTO?+<\/span><\/summary>\n
\n

Ku\u017eel\u00edkov\u00e1 lo\u017eiska jsou prim\u00e1rn\u00edm typem pro pozice ku\u017eelov\u00fdch p\u0159evod\u016f, kde mus\u00ed b\u00fdt podep\u0159eno kombinovan\u00e9 radi\u00e1ln\u00ed a axi\u00e1ln\u00ed zat\u00ed\u017een\u00ed. Kuli\u010dkov\u00e1 lo\u017eiska s hlubokou dr\u00e1\u017ekou se pou\u017e\u00edvaj\u00ed pro pozice s n\u00edzk\u00fdm zat\u00ed\u017een\u00edm, jako jsou vstupn\u00ed h\u0159\u00eddele a nap\u00ednac\u00ed h\u0159\u00eddele. Kuli\u010dkov\u00e1 lo\u017eiska s koso\u00fahl\u00fdm stykem se ob\u010das pou\u017e\u00edvaj\u00ed pro pozice v\u00fdstupn\u00edch h\u0159\u00eddel\u00ed se st\u0159edn\u00edm axi\u00e1ln\u00edm zat\u00ed\u017een\u00edm. Konkr\u00e9tn\u00ed typ a velikost lo\u017eiska pro ka\u017edou pozici je ur\u010dena anal\u00fdzou zat\u00ed\u017een\u00ed pro dan\u00fd model p\u0159evodovky.<\/p>\n<\/div>\n<\/details>\n<\/div>\n

\n
\nJak pozn\u00e1m, \u017ee selh\u00e1vaj\u00ed lo\u017eiska p\u0159evodovky?+<\/span><\/summary>\n
\n

Mezi prvn\u00ed p\u0159\u00edznaky pat\u0159\u00ed zv\u00fd\u0161en\u00fd provozn\u00ed hluk (tich\u00e9 dun\u011bn\u00ed nebo sk\u0159\u00edp\u00e1n\u00ed, kter\u00e9 se d\u0159\u00edve nevyskytovalo), zv\u00fd\u0161en\u00e1 teplota sk\u0159\u00edn\u011b (zejm\u00e9na lokalizovan\u00e1 hork\u00e1 m\u00edsta v bl\u00edzkosti lo\u017eisek), kovov\u00e9 \u010d\u00e1stice ve vypu\u0161t\u011bn\u00e9m oleji a detekovateln\u00e1 v\u016fle h\u0159\u00eddele p\u0159i ru\u010dn\u00edm zatla\u010den\u00ed a ta\u017een\u00ed v\u00fdstupn\u00edho h\u0159\u00eddele. Kter\u00fdkoli z t\u011bchto p\u0159\u00edznak\u016f vy\u017eaduje okam\u017eit\u00e9 vy\u0161et\u0159en\u00ed \u2013 pokra\u010dov\u00e1n\u00ed v provozu p\u0159evodovky s vadn\u00fdm lo\u017eiskem riskuje katastrofick\u00e9 sekund\u00e1rn\u00ed po\u0161kozen\u00ed ozuben\u00fdch kol a sk\u0159\u00edn\u011b.<\/p>\n<\/div>\n<\/details>\n<\/div>\n

\n
\nOpravdu z\u00e1le\u017e\u00ed na zna\u010dce lo\u017eiska?+<\/span><\/summary>\n
\n

Ano \u2013 a to v\u00fdrazn\u011b. V\u00fdrobci lo\u017eisek prvn\u00ed \u00farovn\u011b (SKF, NSK, Timken, NTN) vyr\u00e1b\u011bj\u00ed lo\u017eiska z \u010dist\u0161\u00ed oceli (m\u00e9n\u011b nekovov\u00fdch vm\u011bstk\u016f, kter\u00e9 iniciuj\u00ed \u00fanavu materi\u00e1lu), s p\u0159\u00edsn\u011bj\u0161\u00edmi rozm\u011brov\u00fdmi tolerancemi a konzistentn\u011bj\u0161\u00edm tepeln\u00fdm zpracov\u00e1n\u00edm. Za nep\u0159\u00edzniv\u00fdch podm\u00ednek typick\u00fdch pro zem\u011bd\u011blsk\u00fd provoz (kontaminace, r\u00e1zov\u00e9 zat\u00ed\u017een\u00ed, prom\u011bnliv\u00e1 kvalita maz\u00e1n\u00ed) dosahuj\u00ed lo\u017eiska prvn\u00ed \u00farovn\u011b 2 a\u017e 5kr\u00e1t del\u0161\u00ed skute\u010dn\u00e9 \u017eivotnosti ne\u017e vizu\u00e1ln\u011b identick\u00e1 komoditn\u00ed lo\u017eiska. Cenov\u00e1 p\u0159ir\u00e1\u017eka je obvykle pouze 2 a\u017e 3kr\u00e1t vy\u0161\u0161\u00ed \u2013 co\u017e je p\u0159\u00edzniv\u00fd pom\u011br n\u00e1klad\u016f a \u017eivotnosti.<\/p>\n<\/div>\n<\/details>\n<\/div>\n

\n
\nCo je p\u0159edp\u011bt\u00ed lo\u017eiska a pro\u010d je d\u016fle\u017eit\u00e9?+<\/span><\/summary>\n
\n

P\u0159edp\u011bt\u00ed je \u0159\u00edzen\u00e1 axi\u00e1ln\u00ed s\u00edla p\u016fsob\u00edc\u00ed na sp\u00e1rovan\u00e1 ku\u017eel\u00edkov\u00e1 nebo koso\u00fahl\u00e1 stykov\u00e1 lo\u017eiska b\u011bhem mont\u00e1\u017ee. Eliminuje vnit\u0159n\u00ed v\u016fli, zaji\u0161\u0165uje sd\u00edlen\u00ed zat\u00ed\u017een\u00ed ob\u011bma lo\u017eisky a udr\u017euje vyrovn\u00e1n\u00ed z\u00e1b\u011bru ozuben\u00fdch kol pod zat\u00ed\u017een\u00edm. Nespr\u00e1vn\u00e9 p\u0159edp\u011bt\u00ed je nej\u010dast\u011bj\u0161\u00ed p\u0159\u00ed\u010dinou p\u0159ed\u010dasn\u00e9ho selh\u00e1n\u00ed lo\u017eisek v repasovan\u00fdch p\u0159evodovk\u00e1ch \u2013 p\u0159\u00edli\u0161 voln\u00e9 p\u0159edp\u011bt\u00ed umo\u017e\u0148uje v\u016fli h\u0159\u00eddele a posun z\u00e1b\u011bru ozuben\u00fdch kol; p\u0159\u00edli\u0161 pevn\u00e9 p\u0159edp\u011bt\u00ed zp\u016fsobuje p\u0159eh\u0159\u00edv\u00e1n\u00ed a urychlenou \u00fanavu v\u00e1le\u010dk\u016f.<\/p>\n<\/div>\n<\/details>\n<\/div>\n

\n
\nMohu ku\u017eel\u00edkov\u00e1 lo\u017eiska nahradit kuli\u010dkov\u00fdmi lo\u017eisky?+<\/span><\/summary>\n
\n

Ne \u2013 pokud byla p\u0159evodovka navr\u017eena pro ku\u017eel\u00edkov\u00e1 lo\u017eiska, nahrazen\u00ed kuli\u010dkov\u00fdmi lo\u017eisky sn\u00ed\u017e\u00ed jak radi\u00e1ln\u00ed, tak axi\u00e1ln\u00ed \u00fanosnost v dan\u00e9 poloze. Kuli\u010dkov\u00e1 lo\u017eiska tak\u00e9 nemohou udr\u017eet p\u0159edp\u011bt\u00ed h\u0159\u00eddele, kter\u00e9 vy\u017eaduje souosost z\u00e1b\u011bru ozuben\u00fdch kol. V\u017edy vym\u011b\u0148ujte lo\u017eiska za lo\u017eiska stejn\u00e9ho typu, velikosti a t\u0159\u00eddy, jak\u00e9 uv\u00e1d\u00ed v\u00fdrobce p\u0159evodovky. V\u00fdhodou je p\u0159echod z b\u011b\u017en\u00fdch lo\u017eisek na lo\u017eiska prvn\u00ed \u00farovn\u011b stejn\u00e9ho typu a velikosti, co\u017e zaji\u0161\u0165uje del\u0161\u00ed \u017eivotnost bez kompromis\u016f v \u00fanosnosti.<\/p>\n<\/div>\n<\/details>\n<\/div>\n

\n
\nJak dlouho by m\u011bla vydr\u017eet lo\u017eiska p\u0159evodovky PTO?+<\/span><\/summary>\n
\n

P\u0159i spr\u00e1vn\u00e9 specifikaci, instalaci, maz\u00e1n\u00ed a kontrole kontaminace by lo\u017eiska p\u0159evodovky PTO m\u011bla dos\u00e1hnout \u017eivotnosti 5 000 a\u017e 10 000 a v\u00edce hodin zem\u011bd\u011blsk\u00e9ho provozu \u2013 obvykle d\u00e9le ne\u017e zuby a t\u011bsn\u011bn\u00ed ozuben\u00fdch kol. Pokud lo\u017eiska selh\u00e1vaj\u00ed p\u0159ed 2 000 hodinami provozu, prov\u011b\u0159te kontaminaci (pr\u016fnik prachu nebo vody p\u0159es opot\u0159ebovan\u00e1 t\u011bsn\u011bn\u00ed), nespr\u00e1vn\u00e9 p\u0159edp\u011bt\u00ed (p\u0159\u00edli\u0161 uta\u017een\u00e9 nebo uvoln\u011bn\u00e9), probl\u00e9my s maz\u00e1n\u00edm (nespr\u00e1vn\u00fd druh oleje, nedostate\u010dn\u00e1 hladina oleje nebo prodlou\u017een\u00e9 intervaly v\u00fdm\u011bny oleje) nebo p\u0159et\u00ed\u017een\u00ed (provoz nad jmenovitou kapacitu p\u0159evodovky).<\/p>\n<\/div>\n<\/details>\n<\/div>\n

<\/p>\n

\n

Od prototypu k v\u00fdrob\u011b \u2013 Kontaktujte n\u00e1s<\/h2>\n

Ka\u017ed\u00e1 p\u0159evodovka, kterou vyr\u00e1b\u00edme, pou\u017e\u00edv\u00e1 lo\u017eiska prvn\u00ed \u00farovn\u011b s dokumentovan\u00fdmi specifikacemi, p\u0159esn\u00fdm nastaven\u00edm p\u0159edp\u011bt\u00ed a ov\u011b\u0159ovac\u00edmi zkou\u0161kami ve v\u00fdrob\u011b. Od standardn\u00edch katalogov\u00fdch model\u016f a\u017e po zak\u00e1zkov\u00e9 n\u00e1vrhy OEM, na\u0161e postupy v\u00fdb\u011bru a instalace lo\u017eisek zaji\u0161\u0165uj\u00ed maxim\u00e1ln\u00ed \u017eivotnost v zem\u011bd\u011blsk\u00fdch provozn\u00edch podm\u00ednk\u00e1ch.<\/p>\n

Kontaktujte na\u0161e in\u017een\u00fdry<\/a><\/p>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"

V\u00fdb\u011br lo\u017eiska p\u0159evodovky v\u00fdvodov\u00e9ho h\u0159\u00eddele: Technick\u00e1 krit\u00e9ria Lo\u017eiska jsou tich\u00fdm pracovn\u00edkem uvnit\u0159 ka\u017ed\u00e9 p\u0159evodovky v\u00fdvodov\u00e9ho h\u0159\u00eddele \u2013 nesou ka\u017edou z\u00e1t\u011b\u017e v newtonu, absorbuj\u00ed ka\u017ed\u00fd r\u00e1z a p\u0159i spr\u00e1vn\u00e9 specifikaci vydr\u017e\u00ed d\u00e9le ne\u017e v\u0161echny ostatn\u00ed komponenty, ale p\u0159i poddimenzov\u00e1n\u00ed, zne\u010di\u0161t\u011bn\u00ed nebo nespr\u00e1vn\u00e9 instalaci se st\u00e1vaj\u00ed nejslab\u0161\u00edm \u010dl\u00e1nkem. P\u0159evodovka s dokonale kalen\u00fdmi ozuben\u00fdmi koly v p\u0159esn\u011b obroben\u00e9m pouzd\u0159e bude [\u2026]<\/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":[4042],"tags":[],"class_list":["post-1273","post","type-post","status-publish","format-standard","hentry","category-agricultural-gearbox"],"_links":{"self":[{"href":"https:\/\/pto-gearbox.net\/cs\/wp-json\/wp\/v2\/posts\/1273","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pto-gearbox.net\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/pto-gearbox.net\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/pto-gearbox.net\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/pto-gearbox.net\/cs\/wp-json\/wp\/v2\/comments?post=1273"}],"version-history":[{"count":1,"href":"https:\/\/pto-gearbox.net\/cs\/wp-json\/wp\/v2\/posts\/1273\/revisions"}],"predecessor-version":[{"id":1275,"href":"https:\/\/pto-gearbox.net\/cs\/wp-json\/wp\/v2\/posts\/1273\/revisions\/1275"}],"wp:attachment":[{"href":"https:\/\/pto-gearbox.net\/cs\/wp-json\/wp\/v2\/media?parent=1273"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/pto-gearbox.net\/cs\/wp-json\/wp\/v2\/categories?post=1273"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/pto-gearbox.net\/cs\/wp-json\/wp\/v2\/tags?post=1273"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}