<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
Jak navrhnout spir\u00e1lovou p\u0159evodovku<\/h2>\n
V podstat\u011b je ozuben\u00e9 kolo rotuj\u00edc\u00ed kruhov\u00e1 sou\u010d\u00e1st stroje, kter\u00e1 m\u00e1 do sebe vy\u0159\u00edznut\u00e9 zuby pro p\u0159enos to\u010div\u00e9ho momentu nebo rychlosti. Ozuben\u00e1 kola funguj\u00ed na podobn\u00e9m principu jako p\u00e1ky. Ozuben\u00e1 kola jsou v\u0161ak obvykle asymetrick\u00e1 a maj\u00ed do sebe zab\u00edraj\u00edc\u00ed zuby, kter\u00e9 spolupracuj\u00ed pro p\u0159enos to\u010div\u00e9ho momentu nebo rychlosti.![\"spir\u00e1lov\u00e1](\"https:\/\/img.hzpt.com\/img\/helicalgearbox\/t-helicalgearbox-2.webp\")
<\/p>\n
\u00dahel \u0161roubovice<\/h2>\n
A\u0165 u\u017e hled\u00e1te pravo\u00fahlou p\u0159evodovku nebo \u0161ikmou p\u0159evodovku, \u00fahel zub\u016f je d\u016fle\u017eit\u00fdm faktorem. Ovliv\u0148uje kontaktn\u00ed pom\u011bry, radi\u00e1ln\u00ed s\u00edlu a kroutic\u00ed moment ozuben\u00e9ho kola.
\u0160roubov\u00e1 p\u0159evodovka pou\u017e\u00edv\u00e1 stejn\u00e9 z\u00e1kladn\u00ed prvky jako \u010deln\u00ed ozuben\u00e9 kolo, a\u017e na to, \u017ee m\u00e1 zuby bl\u00ed\u017ee u sebe. Je tak\u00e9 vhodn\u011bj\u0161\u00ed pro aplikace s vysok\u00fdm zat\u00ed\u017een\u00edm. Je tak\u00e9 ti\u0161\u0161\u00ed ne\u017e konven\u010dn\u00ed ozuben\u00e1 kola. Hlavn\u00ed rozd\u00edly mezi spir\u00e1lovou p\u0159evodovkou a \u010deln\u00edm ozuben\u00fdm kolem jsou jej\u00ed stoup\u00e1n\u00ed a \u00fahel stoup\u00e1n\u00ed \u0161roubovice.
Stoup\u00e1n\u00ed \u0161ikm\u00e9ho ozuben\u00e9ho kola se m\u011b\u0159\u00ed v rovin\u011b kolm\u00e9 ke sm\u011bru zub\u016f. M\u016f\u017ee se tak\u00e9 naz\u00fdvat kruhov\u00e1 stoup\u00e1n\u00ed. Stoup\u00e1n\u00ed \u0161ikm\u00e9ho ozuben\u00e9ho kola m\u016f\u017ee b\u00fdt v\u011bt\u0161\u00ed nebo men\u0161\u00ed ne\u017e kruhov\u00e1 stoup\u00e1n\u00ed.
Norm\u00e1ln\u00ed stoup\u00e1n\u00ed \u0161ikm\u00e9ho ozuben\u00e9ho kola se tak\u00e9 m\u011b\u0159\u00ed v rovin\u011b kolm\u00e9 k jeho sm\u011bru ot\u00e1\u010den\u00ed. \u010casto se naz\u00fdv\u00e1 referen\u010dn\u00ed hodnota.
Na rozd\u00edl od \u010deln\u00edho ozuben\u00e9ho kola nem\u00e1 \u0161ikm\u00e9 ozuben\u00e9 kolo jedine\u010dn\u00fd optim\u00e1ln\u00ed \u00fahel z\u00e1b\u011bru. Kontaktn\u00ed pom\u011br \u0161ikm\u00e9ho ozuben\u00e9ho kola se s rostouc\u00edm \u00fahlem z\u00e1b\u011bru sni\u017euje. To je zp\u016fsobeno t\u00edm, \u017ee se zkracuje d\u00e9lka kontaktn\u00ed \u010d\u00e1ry.
Stoup\u00e1n\u00ed \u0161roubovicov\u00e9 planetov\u00e9 p\u0159evodovky lze vypo\u010d\u00edtat vyd\u011blen\u00edm celkov\u00e9ho \u00fahlu stoup\u00e1n\u00ed pastorku a ozuben\u00e9ho kola sou\u010dtem jejich norm\u00e1lov\u00fdch \u00fahl\u016f z\u00e1b\u011bru. \u00dahel stoup\u00e1n\u00ed se obvykle pohybuje mezi 15 a 30 stupni.<\/p>\n
Osov\u00e1 vzd\u00e1lenost<\/h2>\n
P\u0159i n\u00e1vrhu spir\u00e1lov\u00e9 p\u0159evodovky je kl\u00ed\u010dov\u00fdm vstupn\u00edm parametrem osov\u00e1 vzd\u00e1lenost mezi ozuben\u00fdmi koly. Osov\u00e1 vzd\u00e1lenost by m\u011bla b\u00fdt p\u0159esn\u011b vypo\u010d\u00edt\u00e1na a upravena na z\u00e1klad\u011b skute\u010dn\u00fdch podm\u00ednek pou\u017eit\u00ed. Poddimenzovan\u00e9 osov\u00e9 vzd\u00e1lenosti zp\u016fsobuj\u00ed, \u017ee ozuben\u00e9 kolo zab\u00edr\u00e1 v jin\u00e9m bod\u011b ne\u017e v bod\u011b stoup\u00e1n\u00ed, co\u017e m\u016f\u017ee v\u00e9st ke zv\u00fd\u0161en\u00e9mu hluku, p\u0159ed\u010dasn\u00e9mu opot\u0159eben\u00ed a amplitudov\u011b modulovan\u00fdm vibrac\u00edm.
Nejlep\u0161\u00edm zp\u016fsobem, jak vypo\u010d\u00edtat osovou vzd\u00e1lenost \u0161ikm\u00e9ho ozuben\u00e9ho kola, je vypo\u010d\u00edtat \u00fahel stoup\u00e1n\u00ed \u0161roubovice. Toto se \u010dasto ozna\u010duje jako z\u00e1kladn\u00ed pravidlo ozuben\u00ed. \u00dahel stoup\u00e1n\u00ed \u0161roubovice je matematick\u00fd v\u00fdraz, kter\u00fd definuje vztah mezi p\u0159\u00ed\u010dnou a norm\u00e1lovou rovinou zubu ozuben\u00e9ho kola. Pr\u016fm\u011br rozte\u010dn\u00e9 kru\u017enice se zv\u011bt\u0161uje s \u00fahlem stoup\u00e1n\u00ed \u0161roubovice.
Po\u010det zub\u016f v ozuben\u00e9m kole je tak\u00e9 relevantn\u00edm vstupn\u00edm parametrem. Pro ur\u010den\u00ed \u00fahlu stoup\u00e1n\u00ed \u0161roubovice je t\u0159eba zv\u00e1\u017eit \u0159adu faktor\u016f, jako je hloubka zubu, pr\u016fm\u011br stoup\u00e1n\u00ed, po\u010det zub\u016f a polom\u011bry indexov\u00e9 kru\u017enice. Hloubka zubu je u\u017eite\u010dn\u00fdm zp\u016fsobem pro v\u00fdpo\u010det spodn\u00ed v\u016fle.
B\u011bhem n\u00e1vrhu \u0161roubovicov\u00e9 s\u00edt\u011b vznikaj\u00ed radi\u00e1ln\u00ed a axi\u00e1ln\u00ed axi\u00e1ln\u00ed s\u00edly. \u00dahlov\u00e1 v\u016fle ozuben\u00e9ho kola se m\u016f\u017ee li\u0161it v z\u00e1vislosti na typu ozuben\u00e9ho kola, pr\u016fm\u011bru stoup\u00e1n\u00ed a p\u0159evodov\u00e9m pom\u011bru. Celkov\u00e1 d\u00e9lka kontaktn\u00edch \u010dar se m\u011bn\u00ed postupn\u011bji s \u00fahlem \u0161roubovice.
D\u016fle\u017eit\u00fd je tak\u00e9 po\u010det pr\u016f\u0159ez\u016f ve spir\u00e1lov\u00e9m z\u00e1b\u011bru. Radi\u00e1ln\u00ed modul\u00e1rn\u00ed tvar je na v\u00fdrobu ekonomi\u010dt\u011bj\u0161\u00ed. \u0160roubovou p\u0159evodovku lze vyrobit pomoc\u00ed stejn\u00fdch n\u00e1stroj\u016f pro \u0159ez\u00e1n\u00ed zub\u016f jako \u010deln\u00ed ozuben\u00e1 kola.<\/p>\n
V\u016fle<\/h2>\n
Plynul\u00e9 ot\u00e1\u010den\u00ed ozuben\u00fdch kol je d\u016fle\u017eit\u00e9. V\u016fle je v\u0161ak probl\u00e9m, kter\u00fd je t\u0159eba \u0159e\u0161it. Existuje n\u011bkolik zp\u016fsob\u016f, jak v\u016fli regulovat. Po\u017eadovan\u00e1 velikost v\u016fle z\u00e1vis\u00ed na aplikaci, velikosti a p\u0159esnosti ozuben\u00fdch kol.
Existuj\u00ed dva z\u00e1kladn\u00ed zp\u016fsoby, jak sn\u00ed\u017eit v\u016fli. Prvn\u00edm je zmen\u0161en\u00ed vzd\u00e1lenosti mezi st\u0159edy ozuben\u00fdch kol. Druh\u00fdm je pou\u017eit\u00ed pru\u017einov\u00fdch ozuben\u00fdch kol. Druh\u00fd funguje l\u00e9pe u jednosm\u011brn\u00fdch pohon\u016f s n\u00edzk\u00fdm kroutic\u00edm momentem.
Rozd\u00edl mezi vzd\u00e1lenostmi se naz\u00fdv\u00e1 p\u0159\u00ed\u010dn\u00fd kontaktn\u00ed pom\u011br. \u010c\u00edm del\u0161\u00ed je vzd\u00e1lenost, t\u00edm v\u011bt\u0161\u00ed je rota\u010dn\u00ed pohyb. \u00dahlov\u00e1 v\u016fle je opakem radi\u00e1ln\u00ed v\u016fle.
V\u016fli lze tak\u00e9 m\u011b\u0159it z hlediska \u00fahlov\u00e9 vzd\u00e1lenosti mezi dv\u011bma ozuben\u00fdmi koly. Toto m\u011b\u0159en\u00ed lze p\u0159ev\u00e9st na \u00fahlovou hodnotu na provozn\u00ed rozte\u010dn\u00e9 kru\u017enici. Dal\u0161\u00edm p\u0159\u00edkladem je \u0161nekov\u00e9 kolo.
Pomoc\u00ed spr\u00e1vn\u00e9 kalkula\u010dky v\u016fle m\u016f\u017eete ur\u010dit spr\u00e1vnou velikost v\u016fle pro va\u0161i spir\u00e1lovou p\u0159evodovku. Velikost v\u016fle z\u00e1vis\u00ed na p\u0159esnosti jednotliv\u00fdch ozuben\u00fdch kol a typu p\u0159evodovky.
P\u0159evodovka m\u00e1 tak\u00e9 komponenty, jako jsou \u0159emenice, lo\u017eiska a kola. Existuje n\u011bkolik zp\u016fsob\u016f, jak sn\u00ed\u017eit v\u016fli, v\u010detn\u011b pou\u017eit\u00ed \u0161roub\u016f a podlo\u017eek ke zmen\u0161en\u00ed osov\u00e9 vzd\u00e1lenosti mezi ozuben\u00fdmi koly. V aplikac\u00edch s vysok\u00fdm zat\u00ed\u017een\u00edm je b\u011b\u017en\u00e1 tuh\u00e1 \u0161roubov\u00e1 sestava.
Pro v\u00fdpo\u010det v\u016fle ozuben\u00e9ho soukol\u00ed je nutn\u00e9 zn\u00e1t p\u0159evodov\u00fd pom\u011br ka\u017ed\u00e9ho ozuben\u00e9ho kola v soukol\u00ed a m\u00edru jeho spojen\u00ed s referen\u010dn\u00edm h\u0159\u00eddelem. Tato informace je obzvl\u00e1\u0161t\u011b u\u017eite\u010dn\u00e1 pro kumulativn\u00ed v\u016fli.![\"spir\u00e1lov\u00e1](\"https:\/\/img.hzpt.com\/img\/helicalgearbox\/c-helicalgearbox-2.webp\")
<\/p>\n
Trvanlivost<\/h2>\n
Optim\u00e1ln\u00ed konstrukce, materi\u00e1ly, v\u00fdroba a postupy \u00fadr\u017eby ovliv\u0148uj\u00ed \u017eivotn\u00ed cyklus ozuben\u00e9ho kola. To zahrnuje n\u00e1klady na v\u00fdrobu, opravy a v\u00fdm\u011bny. Optim\u00e1ln\u00ed pl\u00e1n \u00fadr\u017eby mus\u00ed tak\u00e9 zohled\u0148ovat n\u00e1klady \u017eivotn\u00edho cyklu.
\u017divotnost ozuben\u00e9ho kola lze prodlou\u017eit spr\u00e1vn\u00fdm odleh\u010den\u00edm \u0161pi\u010dky zubu. T\u00edm se sn\u00ed\u017e\u00ed opot\u0159eben\u00ed, zlep\u0161\u00ed z\u00e1b\u011br a prodlou\u017e\u00ed se \u017eivotnost ozuben\u00e9ho kola.
\u0160roubov\u00e1 p\u0159evodovka je specializovan\u00fd typ p\u0159evodovky, kter\u00e1 transformuje v\u00fdkon z jedn\u00e9 pravo\u00fahl\u00e9 osy na druhou. Mezi typick\u00e9 aplikace pat\u0159\u00ed automobilov\u00e9 p\u0159evodovky. Je obl\u00edbenou volbou v aplikac\u00edch s vysok\u00fdmi ot\u00e1\u010dkami, vysok\u00fdm zat\u00ed\u017een\u00edm nebo nerovnob\u011b\u017en\u00fdmi h\u0159\u00eddeli. Je ti\u0161\u0161\u00ed a plynulej\u0161\u00ed ne\u017e \u010deln\u00ed ozuben\u00e1 kola. Modul\u00e1rn\u00ed v\u00fdrobn\u00ed metoda pou\u017e\u00edvan\u00e1 u spir\u00e1lov\u00fdch p\u0159evodovek poskytuje nejlep\u0161\u00ed mo\u017en\u00fd standard pro integritu a v\u00fdkon sou\u010d\u00e1st\u00ed.
Jednou z nejd\u016fle\u017eit\u011bj\u0161\u00edch sou\u010d\u00e1st\u00ed spir\u00e1lov\u00e9 p\u0159evodovky jsou axi\u00e1ln\u00ed lo\u017eiska. Ta podp\u00edraj\u00ed axi\u00e1ln\u00ed s\u00edly vytv\u00e1\u0159en\u00e9 ozuben\u00fdmi koly a mohou n\u011bkter\u00e9 z nich absorbovat. Spir\u00e1lov\u00e1 p\u0159evodovka je nejvhodn\u011bj\u0161\u00ed pro aplikace s vysok\u00fdm zat\u00ed\u017een\u00edm, kter\u00e9 vy\u017eaduj\u00ed plynul\u00fd pohyb ozuben\u00e9ho kola.
Dobr\u00e1 spir\u00e1lov\u00e1 p\u0159evodovka je takov\u00e1, kter\u00e1 je vyrobena s lo\u017eisky, kter\u00e1 zvl\u00e1dnou axi\u00e1ln\u00ed zat\u00ed\u017een\u00ed. Pro zaji\u0161t\u011bn\u00ed v\u016fle n\u00e1stroje je \u010dasto pot\u0159eba spir\u00e1lov\u00e1 p\u0159evodovka s centr\u00e1ln\u00edm \u017elabem. \u00dahel stoup\u00e1n\u00ed \u0161roubovice m\u00e1 tak\u00e9 vliv na jej\u00ed trvanlivost.
\u00dahel stoup\u00e1n\u00ed \u0161roubovice je tak\u00e9 zdrojem nejv\u011bt\u0161\u00ed axi\u00e1ln\u00ed s\u00edly vytv\u00e1\u0159en\u00e9 \u0161ikm\u00fdm ozuben\u00fdm kolem. Tato velk\u00e1 axi\u00e1ln\u00ed s\u00edla je vytv\u00e1\u0159ena \u0159adou speci\u00e1ln\u011b \u00fahlov\u011b \u0159ezan\u00fdch zub\u016f. To m\u016f\u017ee b\u00fdt jeden z d\u016fvod\u016f, pro\u010d se \u0161ikm\u00e1 ozuben\u00e1 kola pou\u017e\u00edvaj\u00ed ve vysokorychlostn\u00edch aplikac\u00edch.<\/p>\n
Hluk<\/h2>\n
Obecn\u011b \u0159e\u010deno, \u0161ikm\u00e1 ozuben\u00e1 kola jsou pova\u017eov\u00e1na za relativn\u011b ti\u0161\u0161\u00ed ne\u017e \u010deln\u00ed ozuben\u00e1 kola. Odhaduje se, \u017ee \u0161ikm\u00e9 ozuben\u00e9 kolo s axi\u00e1ln\u00edm kontaktn\u00edm pom\u011brem 2 je asi o 19 dB ti\u0161\u0161\u00ed ne\u017e \u010deln\u00ed ozuben\u00e9 kolo se stejn\u00fdm kontaktn\u00edm pom\u011brem.
Term\u00edn \u201ekv\u00edlen\u00ed\u201c se \u010dasto pou\u017e\u00edv\u00e1 k popisu ton\u00e1ln\u00edho charakteru hluku p\u0159evodovky. To je funkce dynamick\u00fdch sil, kter\u00e9 p\u016fsob\u00ed na z\u00e1b\u011br ozuben\u00fdch kol. Dynamick\u00e9 s\u00edly souvis\u00ed s rychlost\u00ed ot\u00e1\u010den\u00ed.
Existuj\u00ed dva hlavn\u00ed typy hluku p\u0159evodovky: hluk specifick\u00fd pro p\u0159evodovku a hluk perifern\u00edch komponent. Oba tyto typy mohou b\u00fdt zp\u016fsobeny vysokorychlostn\u00edmi p\u0159evody p\u0159en\u00e1\u0161ej\u00edc\u00edmi v\u00fdkon motoru.
Hluk specifick\u00fd pro p\u0159evodov\u00e9 kolo m\u016f\u017ee souviset s po\u010dtem zub\u016f v kontaktu. N\u00edzk\u00fd kontaktn\u00ed pom\u011br m\u016f\u017ee zpomalit rychlost ot\u00e1\u010den\u00ed hnan\u00e9ho ozuben\u00e9ho kola. Vysok\u00fd kontaktn\u00ed pom\u011br v\u0161ak nesn\u00ed\u017e\u00ed chybu p\u0159evodu. Proto je d\u016fle\u017eit\u00e9 up\u0159ednostnit sv\u016fj konstruk\u010dn\u00ed z\u00e1m\u011br p\u0159ed zah\u00e1jen\u00edm jak\u00fdchkoli opat\u0159en\u00ed ke sn\u00ed\u017een\u00ed hluku.
T\u00f3nov\u00fd charakter hluku p\u0159evodovky lze ur\u010dit sb\u011brem a anal\u00fdzou dat po ur\u010ditou dobu. To m\u016f\u017ee zahrnovat s\u00e9rii test\u016f p\u0159i zat\u00ed\u017een\u00ed v po\u017eadovan\u00e9m rozsahu zat\u00ed\u017een\u00ed. Toto m\u011b\u0159en\u00ed m\u016f\u017ee slou\u017eit jako v\u00fdchoz\u00ed bod pro anal\u00fdzu hlavn\u00ed p\u0159\u00ed\u010diny poruchy p\u0159evodovky.
Hluk specifick\u00fd pro za\u0159azen\u00fd p\u0159evodov\u00fd stupe\u0148 m\u00e1 \u0159adu mechanism\u016f. Pat\u0159\u00ed mezi n\u011b v\u00fd\u0161e zm\u00edn\u011bn\u00fd sign\u00e1l chyby p\u0159evodovky a kv\u00edlen\u00ed specifick\u00e9 pro za\u0159azen\u00fd p\u0159evodov\u00fd stupe\u0148.![\"spir\u00e1lov\u00e1](\"https:\/\/img.hzpt.com\/img\/helicalgearbox\/b-helicalgearbox-2.webp\")
<\/p>\n
Aplikace<\/h2>\n
R\u016fzn\u00e1 pr\u016fmyslov\u00e1 odv\u011btv\u00ed, jako je plastik\u00e1\u0159sk\u00fd, tiska\u0159sk\u00fd, cement\u00e1\u0159sk\u00fd a dal\u0161\u00ed t\u011b\u017ek\u00fd pr\u016fmysl, pou\u017e\u00edvaj\u00ed spir\u00e1lov\u00e9 p\u0159evodovky. Mezi jejich v\u00fdhody pat\u0159\u00ed n\u00edzk\u00e1 spot\u0159eba energie, ti\u0161\u0161\u00ed provoz a aplikace s vysok\u00fdm zat\u00ed\u017een\u00edm. Existuj\u00ed v\u0161ak i ur\u010dit\u00e1 omezen\u00ed. Nap\u0159\u00edklad teplo generovan\u00e9 kluzn\u00fdm kontaktem je p\u0159ek\u00e1\u017ekou \u00fa\u010dinnosti. Je tak\u00e9 t\u0159eba poznamenat, \u017ee hmotnost p\u0159evodovky ovliv\u0148uje jej\u00ed v\u00fdkon.
Existuj\u00ed dva zp\u016fsoby, jak vytvo\u0159it z\u00e1b\u011br mezi \u0161ikm\u00fdmi ozuben\u00fdmi koly. Prvn\u00ed metoda spo\u010d\u00edv\u00e1 v um\u00edst\u011bn\u00ed h\u0159\u00eddel\u00ed orientovan\u00fdch pod ur\u010dit\u00fdm \u00fahlem \u0161roubovice do s\u00edt\u011b. Druh\u00e1 metoda spo\u010d\u00edv\u00e1 v um\u00edst\u011bn\u00ed h\u0159\u00eddel\u00ed orientovan\u00fdch pod r\u016fzn\u00fdm \u00fahlem \u0161roubovice. Rozd\u00edl v \u00fahlech se ozna\u010duje jako \u00fahel \u0161roubovice.
\u0160roubov\u00e1 p\u0159evodovka je nejroz\u0161\u00ed\u0159en\u011bj\u0161\u00ed p\u0159evodovkou. M\u00e1 kompaktn\u00ed rozm\u011bry a pracuje s vysokou \u00fa\u010dinnost\u00ed. Je u\u017eite\u010dn\u00e1 pro pohon dopravn\u00edk\u016f, chladi\u010d\u016f a stroj\u016f. Pou\u017e\u00edv\u00e1 se tak\u00e9 v automatizovan\u00fdch \u0159\u00eddic\u00edch syst\u00e9mech.
U nerovnob\u011b\u017en\u00fdch h\u0159\u00eddel\u00ed se \u010dasto vol\u00ed \u0161ikm\u00e1 ozuben\u00e1 kola p\u0159ed \u010deln\u00edmi. Pou\u017e\u00edvaj\u00ed se tak\u00e9 v p\u0159evodovk\u00e1ch pro automobilov\u00e9 aplikace a ve v\u00fdtaz\u00edch. Sni\u017euj\u00ed tak\u00e9 vibrace.
Ozuben\u00e1 kola jsou vyrobena ze speci\u00e1ln\u00edch zub\u016f, kter\u00e9 jsou s osou nato\u010den\u00e9 pod \u00fahlem. Jsou tak\u00e9 \u0159ez\u00e1ny pod \u00fahlem. To umo\u017e\u0148uje kolm\u00fd z\u00e1b\u011br. Lze je rozd\u011blit do dvou z\u00e1kladn\u00edch kategori\u00ed: ozuben\u00e1 kola s k\u0159\u00ed\u017een\u00fdmi osami a ozuben\u00e1 kola s jednoduch\u00fdmi \u0161roubovicov\u00fdmi koly. Ozuben\u00e1 kola s jednoduch\u00fdmi \u0161roubovicov\u00fdmi koly mohou b\u00fdt pravoto\u010div\u00e1 nebo levoto\u010div\u00e1. Ozuben\u00e1 kola s k\u0159\u00ed\u017een\u00fdmi osami se obvykle pou\u017e\u00edvaj\u00ed ke spojen\u00ed rovnob\u011b\u017en\u00fdch h\u0159\u00eddel\u00ed.
![\"\u010c\u00edna](\"https:\/\/img.hzpt.com\/img\/helicalgearbox\/helicalgearbox_l1.webp\")
![\"\u010c\u00edna](\"https:\/\/img.hzpt.com\/img\/helicalgearbox\/helicalgearbox_l2.webp\")
editor by czh 2023-01-06<\/p>","protected":false},"excerpt":{"rendered":"
Merchandise Description Helical Spiral Bevel Gear Motor Box ninety Diploma Substantial-Quality Transmission Proper Angle Pace Reducer Alloy Metal Stainless Induction Straight Spiral Bevel Gearbox US $10-99 \/ Piece | 100 Pieces (Min. Order) ### Application: Motor, Electric Cars, Motorcycle, Machinery, Marine, Toy, Agricultural Machinery, Car Function: Distribution Power, Clutch, Change Drive Torque, Change Drive Direction, 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