I-rollered rollered roller ethuthayo i-Tralting i-Extor-Scient Everal Ect elungiselelwe ukuphatha imithwalo ye-radial kunye ne-axial enye ye-axial exineneyo ngaxeshanye. I-jometri yayo yejomeri sisitshixo, siyenza ukuba silawule ngokufanelekileyo kwaye sidlulise imithwalo edityanisiweyo.