Isu tinotora chaiyo yekuumba maitiro makuru-akakura kugadzirwa kwealumina ceramic shaft, ceramic bearing.Alumina ceramic shaft, ceramic inotakura nekupisa uye kutonhora kuramba, diki simba elasticity, kumanikidza kuramba, huremu huremu, diki friction coefficient uye zvichingodaro zvimwe zvakanaka, zvinoshandiswa zvakanyanya muhuwandu hwemota mota.