Dhiraivha unit magiya (Helical Gear Set) yeEV kutapurirana, Helical magiya mazino egiya anotakura torque kubva kune imwe shaft kuenda kune imwe.Zviri nyore, zvinoshanda uye compact, zvichiita kuti ive sarudzo yakakurumbira kune akawanda maapplication.
Iri rudzi rwegiya rakagadzirirwa kumirisana neiyo yakakwira torque uye nekumhanya kwakanyanya zvinodiwa zvemagetsi ekushandisa mota uye inowanzo gadzirwa nezvinhu zvepamberi senge alloy simbi kana mamwe masimbi akasimba.