Li-gear unit tsa ho khanna (Helical Gear Set) bakeng sa phetisetso ea EV, likere tsa Helical ke meno a cylindrical a gear a fetisang torque ho tloha moqomong o mong ho ea ho o mong.E bonolo, e sebetsa hantle ebile e kopane, e ba etsa khetho e tsebahalang bakeng sa lits'ebetso tse ngata.
Mofuta ona oa lisebelisoa o etselitsoe ho mamella torque e phahameng le litlhoko tsa lebelo le holimo tsa lits'ebetso tsa koloi ea motlakase mme hangata li entsoe ka lisebelisoa tse tsoetseng pele joalo ka tšepe ea alloy kapa litšepe tse ling tse tšoarellang.