ʻO nā mea hoʻokele kaʻa (Helical Gear Set) no ka hoʻouna ʻana i ka EV, ʻo nā niho Helical nā niho cylindrical e hoʻoili i ka torque mai kekahi kumu a i kekahi.He maʻalahi, ʻoi aku ka maikaʻi a me ka paʻakikī, e hoʻolilo iā lākou i koho kaulana no nā noi he nui.
Hoʻolālā ʻia kēia ʻano mea e kū i ka torque kiʻekiʻe a me nā koi kiʻekiʻe o nā noi kaʻa uila a hana maʻamau i nā mea holomua e like me ke kila kila a i ʻole nā metala paʻa ʻē aʻe.