{"id":1264,"date":"2026-04-27T06:25:23","date_gmt":"2026-04-27T06:25:23","guid":{"rendered":"https:\/\/worm-and-worm-wheel.com\/?p=1264"},"modified":"2026-04-27T06:25:23","modified_gmt":"2026-04-27T06:25:23","slug":"worm-gear-suppliers-in-korea-and-japan-a-procurement-playbook","status":"publish","type":"post","link":"https:\/\/worm-and-worm-wheel.com\/sk\/worm-gear-suppliers-in-korea-and-japan-a-procurement-playbook\/","title":{"rendered":"Dod\u00e1vatelia z\u00e1vitovkov\u00fdch prevodov v K\u00f3rei a Japonsku \u2013 Pr\u00edru\u010dka obstar\u00e1vania"},"content":{"rendered":"
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Dod\u00e1vatelia z\u00e1vitovkov\u00fdch prevodov v K\u00f3rei a Japonsku \u2013 Pr\u00edru\u010dka obstar\u00e1vania<\/h1>\n

Mapovanie noriem, realita dodac\u00edch leh\u00f4t, o\u010dak\u00e1vania t\u00fdkaj\u00face sa dokument\u00e1cie, hodnotenie dod\u00e1vate\u013eov a INCOTERMS pre kupuj\u00facich OEM, ktor\u00ed si zabezpe\u010duj\u00fa z\u00e1vitovkov\u00e9 prevody v celom priemyselnom koridore K\u00f3rey a Japonska.<\/p>\n

Porozpr\u00e1vajte sa s in\u017einierom \u2192<\/a><\/p>\n<\/div>\n

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R\u00fdchla odpove\u010f<\/div>\n

K\u00f3rejsk\u00ed a japonsk\u00ed kupuj\u00faci z radov v\u00fdrobcov origin\u00e1lnych dielov (OEM) m\u00f4\u017eu z\u00edskava\u0165 z\u00e1vitovkov\u00e9 prevody od troch \u00farovn\u00ed dod\u00e1vate\u013eov: dom\u00e1ci japonsk\u00ed v\u00fdrobcovia (KHK, Tsubaki, Sumitomo \u2013 pr\u00e9miov\u00e1 cena, \u0161tandard JIS, dodacie lehoty 4 \u2013 8 t\u00fd\u017ed\u0148ov), k\u00f3rejsk\u00ed v\u00fdrobcovia vr\u00e1tane lok\u00e1lnych dod\u00e1vate\u013eov v Ansane, Incheone a Busane (stredn\u00e1 cena, dvojit\u00fd \u0161tandard KS+JIS, 4 \u2013 6 t\u00fd\u017ed\u0148ov) a zahrani\u010dn\u00ed dod\u00e1vatelia v \u010c\u00edne a Vietname, ktor\u00ed dod\u00e1vaj\u00fa do K\u00f3rey a Japonska (ni\u017e\u0161ia cena, v s\u00falade s normami ISO\/JIS na certifikovan\u00fdch v\u00fdrobn\u00fdch link\u00e1ch, 6 \u2013 10 t\u00fd\u017ed\u0148ov vr\u00e1tane n\u00e1mornej prepravy). \u0160tandardn\u00e9 katal\u00f3gov\u00e9 polo\u017eky v moduloch M1 a\u017e M8 s\u00fa skladom vo v\u0161etk\u00fdch troch \u00farovniach. Z\u00e1kazkov\u00e9 geometrie a \u0161pecializovan\u00e9 materi\u00e1lov\u00e9 p\u00e1ry zvy\u010dajne poch\u00e1dzaj\u00fa od dom\u00e1cich alebo k\u00f3rejsk\u00fdch v\u00fdrobcov, preto\u017ee pri n\u00edzkych objemoch objedn\u00e1vok je dodacia lehota d\u00f4le\u017eitej\u0161ia ako cena. Po\u017eiadavky na dokument\u00e1ciu (certifik\u00e1ty materi\u00e1lov, spr\u00e1vy o tvrdosti, referencie noriem JIS) s\u00fa v k\u00f3rejsk\u00fdch a japonsk\u00fdch dod\u00e1vate\u013esk\u00fdch re\u0165azcoch OEM pr\u00edsnej\u0161ie ako v eur\u00f3pskej alebo americkej praxi \u2013 \u0161pecifikujte ich vopred v \u017eiadosti o cenov\u00fa ponuku.<\/p>\n<\/div>\n

Mapovanie noriem \u2013 JIS, KS, ISO, DIN<\/h2>\n

K\u00f3rejsk\u00e9 a japonsk\u00e9 \u0161pecifik\u00e1cie v\u00fdrobcov origin\u00e1lnych dielov (OEM) sa zvy\u010dajne priamo odvol\u00e1vaj\u00fa na normy JIS. Niektor\u00ed k\u00f3rejsk\u00ed kupuj\u00faci uprednost\u0148uj\u00fa KS (k\u00f3rejsk\u00e9 normy), ak existuj\u00fa, ale pre geometriu z\u00e1vitovkov\u00fdch prevodov je be\u017enou praxou p\u00edsa\u0165 \u0161pecifik\u00e1cie v term\u00ednoch JIS, preto\u017ee norma JIS je komplexnej\u0161ia. KS aj JIS s\u00fa takmer vo v\u0161etk\u00fdch pr\u00edpadoch harmonizovan\u00e9 s normami ISO a v\u00e4\u010d\u0161ina renomovan\u00fdch dod\u00e1vate\u013eov na celom svete vyr\u00e1ba v s\u00falade s dvojit\u00fdm s\u00faladom s normami ISO\/JIS.<\/p>\n

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Normy, ktor\u00e9 s\u00fa najd\u00f4le\u017eitej\u0161ie pre \u0161pecifik\u00e1cie z\u00e1vitovkov\u00fdch prevodov, pokr\u00fdvaj\u00fa tri oblasti: geometriu a toleranciu ozuben\u00e9ho kolesa, rozmery k\u013e\u00fa\u010da a dr\u00e1\u017eky pre k\u013e\u00fa\u010d a vlastnosti materi\u00e1lu. Ni\u017e\u0161ie uveden\u00e1 tabu\u013eka kr\u00ed\u017eov\u00fdch odkazov zobrazuje praktick\u00e9 ekvivalenty, ktor\u00e9 pou\u017e\u00edvaj\u00fa sk\u00fasen\u00e9 t\u00edmy obstar\u00e1vania bez toho, aby sa museli pon\u00e1ra\u0165 do textu \u0161pecifik\u00e1cie.<\/p>\n

Pre k\u00f3rejsk\u00fdch kupuj\u00facich je norma KS B 1421 normou presnosti ozuben\u00fdch kolies, ktor\u00e1 je ekvivalentom noriem JIS B 1702 a ISO 1328. Pre v\u00e4\u010d\u0161inu obstar\u00e1vac\u00edch \u00fa\u010delov sa pri citovan\u00ed ktorejko\u013evek z noriem dod\u00e1vate\u013e dostane k rovnakej odpovedi.<\/p>\n<\/div>\n

\"\"<\/div>\n<\/div>\n
\n\n\n\n\n\n\n\n\n\n\n\n
T\u00e9ma<\/th>\nJIS (Japonsko)<\/th>\nKS (K\u00f3rea)<\/th>\nEkvivalent ISO \/ DIN<\/th>\n<\/tr>\n<\/thead>\n
Valcov\u00e9 ozuben\u00e9 moduly<\/strong><\/td>\nJIS B 1701-2<\/td>\nKS B 1402<\/td>\nISO 54 \/ DIN 780<\/td>\n<\/tr>\n
Presnos\u0165 prevodovky<\/strong><\/td>\nJIS B 1702-1<\/td>\nKS B 1421<\/td>\nISO 1328-1 \/ DIN 3962<\/td>\n<\/tr>\n
Geometria z\u00e1vitovkov\u00e9ho prevodu<\/strong><\/td>\nJIS B 1723<\/td>\nKS B 1431<\/td>\nISO 14521 \/ DIN 3975<\/td>\n<\/tr>\n
Paraleln\u00e9 per\u00e1 a dr\u00e1\u017eky<\/strong><\/td>\nJIS B 1301<\/td>\nKS B 1311<\/td>\nISO 2491 \/ DIN 6885<\/td>\n<\/tr>\n
Fosforov\u00fd bronz (CuSn12)<\/strong><\/td>\nJIS H 5111 BC6<\/td>\nKS D 6024<\/td>\nISO 1338 \/ DIN 1705<\/td>\n<\/tr>\n
Oce\u013e pre \u010dervy (cementovan\u00e1)<\/strong><\/td>\nJIS G 4053 SCM415<\/td>\nKS D 3867<\/td>\nISO 683 \/ DIN 17210 16MnCr5<\/td>\n<\/tr>\n
Nerezov\u00e1 oce\u013e (potravin\u00e1rsky\/farmaceutick\u00fd priemysel)<\/strong><\/td>\nJIS G 4303 SUS316<\/td>\nKS D 3706<\/td>\nISO 683 \/ EN 10088 1.4404<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

\u0160pecifik\u00e1cia nap\u00edsan\u00e1 pre k\u00f3rejsk\u00fdch alebo japonsk\u00fdch v\u00fdrobcov origin\u00e1lnych dielov (OEM) by sa mala zvy\u010dajne odvol\u00e1va\u0165 na normu JIS aj na ekvivalentn\u00fa normu ISO \u2013 napr\u00edklad \u201efosforov\u00fd bronz CuSn12 pod\u013ea JIS H 5111 BC6 \/ ISO 1338\u201c. Dvojit\u00fd odkaz rob\u00ed \u0161pecifik\u00e1ciu jednozna\u010dnou pre ka\u017ed\u00e9ho renomovan\u00e9ho dod\u00e1vate\u013ea na celom svete a zjednodu\u0161uje proces kontroly a kontroly kvality pri vstupnom schv\u00e1len\u00ed.<\/p>\n

Tri \u00farovne dod\u00e1vate\u013eov a na \u010do je ka\u017ed\u00e1 z nich dobr\u00e1<\/h2>\n

\u00darove\u0148 1 \u2013 Pr\u00e9miov\u00ed japonsk\u00ed dom\u00e1ci v\u00fdrobcovia<\/h3>\n

Japonsk\u00ed dom\u00e1ci v\u00fdrobcovia ako KHK, Tsubaki, Sumitomo a Nidec vyr\u00e1baj\u00fa z\u00e1vitovkov\u00e9 prevody a kompletn\u00e9 reduktory pod\u013ea noriem JIS priamo z tov\u00e1rne. V\u00fdhodou je \u00faplnos\u0165 dokument\u00e1cie, konzistentnos\u0165 kvality a siln\u00e1 technick\u00e1 podpora v Japonsku \u2013 z\u00e1kladn\u00e9 o\u010dak\u00e1vania s\u00fa audity tov\u00e1rn\u00ed certifikovan\u00e9 pod\u013ea JIS, certifik\u00e1ty sledovate\u013en\u00fdch materi\u00e1lov a technick\u00fd person\u00e1l ovl\u00e1daj\u00faci konvencie n\u00e1vrhu OEM. Nev\u00fdhodou je cena (\u010dasto 1,5 a\u017e 2,5-n\u00e1sobok zahrani\u010dn\u00fdch ekvivalentov) a dodacia lehota pre z\u00e1kazkov\u00e9 geometrie (8 a\u017e 12 t\u00fd\u017ed\u0148ov pre polo\u017eky, ktor\u00e9 nie s\u00fa v katal\u00f3gu). Pre kritick\u00e9 aplik\u00e1cie, kde je zlyhanie dielov neprijate\u013en\u00e9, je Tier 1 bezpe\u010dnou vo\u013ebou. Pre aplik\u00e1cie s vysok\u00fdm objemom v\u00fdroby a vysok\u00fdmi n\u00e1kladmi je Tier 1 \u0165a\u017e\u0161ie ekonomicky zd\u00f4vodni\u0165.<\/p>\n

\u00darove\u0148 2 \u2013 k\u00f3rejsk\u00ed a region\u00e1lni v\u00fdrobcovia<\/h3>\n

K\u00f3rea m\u00e1 rozsiahlu dom\u00e1cu v\u00fdrobn\u00fa z\u00e1klad\u0148u z\u00e1vitovkov\u00fdch prevodov a z\u00e1vitovkov\u00fdch kolies s\u00fastreden\u00fa v priemyselnom koridore Gyeonggi (Ansan, Incheon, Suwon) a Busan. V\u00fdrobcovia z\u00e1vitovkov\u00fdch prevodov v tejto \u00farovni vyr\u00e1baj\u00fa v s\u00falade s dvojit\u00fdm s\u00faladom s normami KS+JIS, pri\u010dom materi\u00e1l zvy\u010dajne z\u00edskavaj\u00fa z k\u00f3rejsk\u00fdch oceliarn\u00ed a k\u00f3rejsk\u00fdch alebo \u010d\u00ednskych zlievarn\u00ed bronzu. Kapit\u00e1lov\u00e9 n\u00e1klady na z\u00e1vitovkov\u00e9 prevody predstavuj\u00fa 60 a\u017e 80 percent ekvivalentov \u00farovne 1, dodacie lehoty pre \u0161tandardn\u00e9 katal\u00f3gov\u00e9 polo\u017eky s\u00fa 4 a\u017e 6 t\u00fd\u017ed\u0148ov a dodacie lehoty pre z\u00e1kazkov\u00e9 geometrie s\u00fa 5 a\u017e 8 t\u00fd\u017ed\u0148ov. K\u00f3rejsk\u00ed v\u00fdrobcovia z\u00e1vitovkov\u00fdch prevodov zvy\u010dajne pon\u00fakaj\u00fa dokument\u00e1ciu a technick\u00fa podporu v anglickom jazyku, \u010do zjednodu\u0161uje cezhrani\u010dn\u00e9 obstar\u00e1vanie pre in\u00fdch kupuj\u00facich z \u00e1zijsko-tichomorsk\u00e9ho regi\u00f3nu (Vietnam, Thajsko, Indon\u00e9zia). Pre v\u00e4\u010d\u0161inu aplik\u00e1ci\u00ed OEM v k\u00f3rejskom priemyselnom koridore je \u00farove\u0148 2 n\u00e1kladovo efekt\u00edvnou vo\u013ebou bez merate\u013en\u00e9ho kompromisu v kvalite v porovnan\u00ed s \u00farov\u0148ou 1.<\/p>\n

\u00darove\u0148 3 \u2013 Offshore (\u010c\u00edna, Vietnam, Taiwan)<\/h3>\n

Dod\u00e1vatelia z\u00e1vitovkov\u00fdch prevodov pre offshore vozidl\u00e1 v \u010c\u00edne, Vietname a na Taiwane s\u00fa\u0165a\u017eia v cen\u00e1ch katal\u00f3gov\u00fdch polo\u017eiek a ve\u013ekoobjemov\u00fdch objedn\u00e1vok. Rozsah kvality v r\u00e1mci \u00farovne Tier 3 je \u0161ir\u0161\u00ed ako v r\u00e1mci \u00farovne Tier 1 alebo Tier 2 \u2013 \u0161pi\u010dkov\u00ed \u010d\u00ednski v\u00fdrobcovia z\u00e1vitovkov\u00fdch prevodov vyr\u00e1baj\u00fa pod\u013ea \u0161tandardov ISO\/JIS s kompletnou dokument\u00e1ciou, zatia\u013e \u010do dod\u00e1vatelia spodnej \u00farovne \u0161etria na \u0161pecifik\u00e1cii materi\u00e1lu a kontrole. Pre kupuj\u00facich OEM vstupuj\u00facich do \u00farovne Tier 3 je proces hodnotenia dod\u00e1vate\u013eov d\u00f4le\u017eitej\u0161\u00ed ako pre \u00farove\u0148 Tier 1 alebo Tier 2 \u2013 audit tov\u00e1rne na z\u00e1vitovkov\u00e9 prevody, testovanie vzoriek materi\u00e1lu a kontrola prv\u00e9ho kusu s\u00fa nevyhnutn\u00e9 pred zadan\u00edm v\u00fdrobnej objedn\u00e1vky. Typick\u00e1 dodacia lehota pre katal\u00f3gov\u00e9 polo\u017eky je 6 a\u017e 8 t\u00fd\u017ed\u0148ov plus n\u00e1morn\u00e1 preprava (1 a\u017e 2 t\u00fd\u017edne do k\u00f3rejsk\u00fdch a japonsk\u00fdch pr\u00edstavov), \u010do predstavuje celkov\u00fd cyklus od objedn\u00e1vky po dodanie 7 a\u017e 10 t\u00fd\u017ed\u0148ov. Kapit\u00e1lov\u00e9 n\u00e1klady m\u00f4\u017eu predstavova\u0165 40 a\u017e 60 percent ekvivalentov \u00farovne Tier 1 pri spr\u00e1vnych polo\u017ek\u00e1ch, pri\u010dom \u00faspory s\u00fa zvy\u010dajne v\u00e4\u010d\u0161ie pri ve\u013ekoobjemov\u00fdch \u0161tandardn\u00fdch katal\u00f3gov\u00fdch dieloch ako pri z\u00e1kazkov\u00fdch geometri\u00e1ch.<\/p>\n

Realita dodac\u00edch leh\u00f4t \u2013 \u010do o\u010dak\u00e1va\u0165<\/h2>\n

\"\"<\/p>\n

Dodacia lehota z\u00e1vitovkov\u00e9ho prevodu je jedinou premennou pri obstar\u00e1van\u00ed, ktor\u00e1 naj\u010dastej\u0161ie prekvapuje kupuj\u00facich, ktor\u00ed kupuj\u00fa prv\u00fdkr\u00e1t. Marketingov\u00e9 materi\u00e1ly zobrazuj\u00fa \u0161tandardn\u00e9 katal\u00f3gov\u00e9 polo\u017eky ako \u201eskladom na okam\u017eit\u00e9 odoslanie\u201c, ale praktick\u00e1 realita je tak\u00e1, \u017ee aj skladom dostupn\u00e9 polo\u017eky prech\u00e1dzaj\u00fa kontrolou kvality, pr\u00edpravou dokument\u00e1cie, balen\u00edm a odch\u00e1dzaj\u00facou logistikou \u2013 zvy\u010dajne to trv\u00e1 2 a\u017e 5 pracovn\u00fdch dn\u00ed od objedn\u00e1vky po odoslanie, a to aj v pr\u00edpade skuto\u010dne be\u017ene dostupn\u00fdch produktov.<\/p>\n

\n\n\n\n\n\n\n\n\n\n
Typ objedn\u00e1vky<\/th>\n\u00darove\u0148 1 (Japonsko)<\/th>\n2. \u00farove\u0148 (K\u00f3rea)<\/th>\n\u00darove\u0148 3 (na mori)<\/th>\n<\/tr>\n<\/thead>\n
Skladov\u00fd katal\u00f3g, mal\u00e9 mno\u017estvo<\/strong><\/td>\n3-7 dn\u00ed<\/td>\n5-10 dn\u00ed<\/td>\n2-3 t\u00fd\u017edne<\/td>\n<\/tr>\n
Katal\u00f3g, OEM zv\u00e4zok<\/strong><\/td>\n4-6 t\u00fd\u017ed\u0148ov<\/td>\n4-6 t\u00fd\u017ed\u0148ov<\/td>\n6-10 t\u00fd\u017ed\u0148ov<\/td>\n<\/tr>\n
Vlastn\u00e1 geometria, prototyp<\/strong><\/td>\n8-12 t\u00fd\u017ed\u0148ov<\/td>\n5-8 t\u00fd\u017ed\u0148ov<\/td>\n8-14 t\u00fd\u017ed\u0148ov<\/td>\n<\/tr>\n
Z\u00e1kazkov\u00e1 geometria, v\u00fdroba<\/strong><\/td>\n10-14 t\u00fd\u017ed\u0148ov<\/td>\n8-10 t\u00fd\u017ed\u0148ov<\/td>\n10-16 t\u00fd\u017ed\u0148ov<\/td>\n<\/tr>\n
Regulovan\u00e9 (potraviny, farmaceutick\u00fd priemysel, n\u00e1morn\u00fd priemysel)<\/strong><\/td>\n10-16 t\u00fd\u017ed\u0148ov<\/td>\n8-12 t\u00fd\u017ed\u0148ov<\/td>\n12-20 t\u00fd\u017ed\u0148ov<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Kontrola prv\u00e9ho kusu z\u00e1vitovkov\u00e9ho prevodu predl\u017euje ak\u00fako\u013evek prv\u00fa z\u00e1kazkov\u00fa v\u00fdrobn\u00fa objedn\u00e1vku o 1 a\u017e 2 t\u00fd\u017edne bez oh\u013eadu na \u00farove\u0148. \u0160peci\u00e1lna dokument\u00e1cia (overenie materi\u00e1lu tre\u0165ou stranou, spr\u00e1vy z auditu tov\u00e1rne, regula\u010dn\u00e9 certifik\u00e1cie) predl\u017euje dodaciu lehotu v\u00fdroby o \u010fal\u0161ie 1 a\u017e 3 t\u00fd\u017edne. Pl\u00e1nujte harmonogramy obstar\u00e1vania s oh\u013eadom na tieto skuto\u010dnosti, najm\u00e4 ak je z\u00e1vitovkov\u00fd prevodov\u00fd syst\u00e9m na kritickej ceste pre v\u00e4\u010d\u0161iu zostavu stroja.<\/p>\n

O\u010dak\u00e1vania t\u00fdkaj\u00face sa dokument\u00e1cie v k\u00f3rejsk\u00fdch a japonsk\u00fdch dod\u00e1vate\u013esk\u00fdch re\u0165azcoch OEM<\/h2>\n

D\u00f4kladnos\u0165 dokument\u00e1cie z\u00e1vitovkov\u00fdch prevodov je atrib\u00fat obstar\u00e1vania, v ktorom sa k\u00f3rejsk\u00e9 a japonsk\u00e9 dod\u00e1vate\u013esk\u00e9 re\u0165azce OEM najviac l\u00ed\u0161ia od eur\u00f3pskych alebo americk\u00fdch noriem. K\u00f3rejsk\u00ed kupuj\u00faci automobilov\u00e9ho priemyslu Tier 1 o\u010dak\u00e1vaj\u00fa, \u017ee ka\u017ed\u00e1 v\u00e1rka prich\u00e1dzaj\u00facich z\u00e1vitovkov\u00fdch prevodov bude ma\u0165 certifik\u00e1ty materi\u00e1lu, spr\u00e1vy o tvrdosti, z\u00e1znamy o rozmerovej kontrole a sledovate\u013enos\u0165 v\u00fdrobnej s\u00e9rie \u2013 \u0161tandardne, nie ako vylep\u0161enia. Cena zvy\u010dajne zah\u0155\u0148a t\u00fato dokument\u00e1ciu; premenliv\u00e9 je, \u010di ju dod\u00e1vate\u013e vyr\u00e1ba dobre alebo s \u0148ou zaobch\u00e1dza ako s dodato\u010dnou my\u0161lienkou.<\/p>\n

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\u0160tandardn\u00fd dokumenta\u010dn\u00fd bal\u00edk pre objedn\u00e1vky OEM:<\/p>\n