I-Worm Shaft, eyaziwa nangokuthi isikulufa se-Worm, iyithuluzi elisetshenziselwa ukudlulisa ukunyakaza okushintshaniswa phakathi kwemigodi emibili engeyona efanayo. Siqukethe induku ye-cylindrical enombala noma intambo ebusweni bayo. Le khasiigiya lomhloboNgakolunye uhlangothi, uhlobo lwegiya elifana nesikulufa, olunemiphetho enamakhanda ane-mesh nge-spiral groove yesibungu shaft ukudlulisa amandla
Lapho i-Worm Shaft ijikeleza, i-Spiral Groove ishukumisela igiya le-Worm, elishukumisela imishini exhunyiwe. Le ndlela inikezela ngezinga eliphakeme lokuhambisa i-torque, okwenza lilungele imisebenzi edinga ukunyakaza okunamandla nokuhamba kancane, njengasemishini yezolimo.
Inzuzo eyodwa yokusebenzisa i-Worm Shaft kanye negiya le-Worm kweGearbox yezolimo yikhono labo lokunciphisa umsindo nokudlidliza. Lokhu kungenxa yedizayini eyingqayizivele evumela ukunyakaza okubushelelezi nokuhamba kwemishini. Lokhu kuphumela ekugqokeni okuncane futhi kudabula umshini, kwandise isikhathi sayo sokuphila kanye nokunciphisa imali yokulungisa.
Enye inzuzo amandla abo okukhulisa ukusebenza kahle kwamandla. I-angle ye-Spiral Groove ku-Worm Shape inquma i-Gear Ratio, okusho ukuthi umshini ungaklanywa ngokukhethekile ukuvumela ijubane elithile noma okukhipha i-torque. Lokhu kukhuphuka kahle kuphumela ekuthuthukisweni komnotho othuthukisiwe futhi kuncishiswe ukusetshenziswa kwamandla, okugcina kuholela emalini enkulu.
Ekuphetheni, ukusetshenziswa kwegiya le-Worm Shaft kanye negiya le-Worm ebhokisini lezolimo kudlala indima ebalulekile emishini yezolimo esebenzayo. Idizayini yabo eyingqayizivele ivumela ukusebenza okuthule nokubushelelezi ngenkathi ihlinzeka ngokusebenza kahle kwamandla okudluliswa kwamandla, okuholela embonini yezolimo esimeme futhi enenzuzo.