Irotha kazibuthe, noma irotha kazibuthe unomphela ingxenye engamile yenjini. I-rotor iyingxenye ehambayo ku-motor kagesi, i-generator nokunye. Ama-rotor Magnetic aklanywe ngezigxobo eziningi. Isigxobo ngasinye siyashintshana nge-polarity (enyakatho naseningizimu). Izigxobo eziphikisanayo zizungeza iphuzu elimaphakathi noma i-eksisi (ngokuyisisekelo, i-shaft itholakala phakathi nendawo). Lona umklamo oyinhloko wama-rotor. Imoto kazibuthe engavamile emhlabeni inochungechunge lwezinzuzo, njengosayizi omncane, isisindo esilula, ukusebenza kahle okuphezulu nezici ezinhle. Izicelo zayo ziningi kakhulu futhi zinwebeka kuyo yonke imikhakha yezindiza, indawo, ezokuvikela, ukukhiqizwa kwemishini, ukukhiqizwa kwezimboni nezolimo kanye nempilo yansuku zonke.