Iseti yegiya yeplanethi inokusetyenziswa kwisikhephe sokuhamba ngesikhephe ukubonelela ngeendlela ezahlukeneyo zegiya, ukuvumela ukuhanjiswa kwamandla okufanelekileyo kunye nolawulo lwenkqubo yokuqhutywa kwesikhephe.
I-Sun Gear: Isixhobo selanga siqhagamshelwe kwisithwala, esibambe iigiya zeplanethi.
Iigiya zePlanethi: Iigiya ezininzi zeplanethi zifakwe kwisixhobo selanga kunye negiya yangaphakathi yeringi.Ezi zixhobo zeplanethi zinokujikeleza ngokuzimeleyo ngelixa zikwajikeleza igiya yelanga.
Isixhobo seRingi: Isixhobo sangaphakathi seringi similiselwe kwi-shaft ye-propeller yesikhephe okanye inkqubo yokuhambisa isikhephe.Ibonelela ngokujikeleza kweshaft yemveliso.