I-gearbox ye-rotary tiller iyingxenye ebalulekile ye-rotary tiller.Idlala indima ebalulekile ekudluliseleni amandla akhiqizwe ugandaganda ezinsimbini ezizungezayo ezisetshenziselwa ukuphuka nokuxegisa inhlabathi ukuze kulinywe.U-gearbox osebenza kahle uqinisekisa ukuthi ama-blade ajikelezayo ajikeleza ngesivinini esikhulu esidingekayo ukuze kulinywe kahle inhlabathi, inqubo ebalulekile kwezolimo.