Ka keketseho ea matla a lipere tsa terekere ea lapeng, litlhoko tsa shaft ea phetiso li ntse li phahama, ka hona re thehile matla a maholo a lipere, torque e kholo, Angle e kholo ea phetisetso. Le hoja ho sebelisoa mohlala o tšoanang oa sefapano, re qala ka ho atolosa tube ea ka ntle le shaft, ho matlafatsa torque le ho eketsa matla. Ea bobeli ke ho sebelisa lisebelisoa tse tloaelehileng, tse nyenyane ho ea ho lithakhisa, tse kholo ho phala e ka ntle le shaft. Re khetha theknoloji e hlophisitsoeng le lisebelisoa tse phahameng, tse nepahetseng le tse molemo ho feta lihlahisoa tse tloaelehileng. E rekisoa haholo China.