Wannan karkacebevel gearan yi amfani dashi a cikin tarakta. A cikin tarakta , yana gaban motar tuƙi da kuma bayan akwatin gear. Duk hanyoyin watsawa da harsashi ana kiran su da axle na baya, kuma babban aikinsa shine haɓakawa, haɓakawa, ragewa da canza juzu'i .Bugu da ƙari, tarakta tare da injunan juzu'i waɗanda ke amfani da nau'ikan nau'ikan gear cylindrical azaman watsawa ta tsakiya, yawancinsu suna amfani da bevel. gear nau'i-nau'i, wanda ba kawai ƙara karfin juyi da rage gudun ba, amma kuma canza karfin watsawa.