Kwinkqubo yebhokisi yegiya yeplanethi, ibhodi yegiya yeplanethi idlala indima ebalulekileyo kumsebenzi kunye noyilo lwebhokisi yegiya. Ibhokisi yegiya yeplanethi inamacandelo aliqela, kuqukaizixhobo zelanga,izixhobo zeplanethi,izixhobo zeringi,kunye nenqwelomoya ethwala iplanethi. Nantsi isizathu sokuba inqwelomoya ethwala iplanethi ibalulekile:

Inkxaso yeePlanet Gears:

Inqwelo-moya ethwala iplanethi isebenza njengesiseko esiphambili senkxaso yezixhobo zeplanethi. Iinqwelo-moya ezithwala iplanethi zinxibelelana ngezixhobo zelanga kunye nezixhobo zeringi, kwaye zijikeleza izixhobo zelanga ngelixa zijikeleza i-axis ephakathi yenqwelo-moya ethwala iplanethi.

Ukudluliselwa kweTorque:
I-torque eveliswa yi-input (eqhagamshelwe kwi-sun gear okanye kwi-planet carrier) idluliselwa kwi-output ngokusebenzisaizixhobo zeplanethi.Isithwali seplanethi sinceda ekusasazeni le torque kwiigiya zeplanethi, sizivumela ukuba zijikeleze kwaye zinegalelo ekunciphiseni okanye ekwandiseni isantya segiya iyonke.

Ukuhanjiswa koMthwalo:

Isithwali seplanethi sinceda ekusasazeni umthwalo phakathiizixhobo zeplanethi.Olu lwabiwo luqinisekisa ukuba umthwalo kwigiya nganye ulungelelene, nto leyo ethintela ukugcwala kakhulu kwegiya nganye kwaye ikhuthaza ukuqina nokuthembeka kwegiya.