Gears waa mid ka mid ah qaybaha ugu muhiimsan ee sanduuqa gearska.Gears waa qaybaha makaanikada ee caawiya kala duwanaanshaha xawaaraha iyo qulqulka daabyada wareega ee tiller-ga.Sanduuqa gear-ga, gears-ku waxay wada shaqeeyaan si ay u gudbiyaan awoodda ka socota shafka wax-gelinta ilaa shafka wax-soo-saarka, kordhinta ama hoos u dhigida xawaaraha beerashada hufan.