Pakati pendiro yepasi pane concave spherical surface, iyo inoenderana neconvex yepakati ndiro.Pane arc-yakaita PTFE ndiro yakamisikidzwa pakati pezviviri izvi.Iyo denderedzwa yepamusoro inotsvedza nayo kuti igutse kutenderera kwedanda kumagumo;ndiro yesimbi isina tsvina iri pachigadziko chepamusoro chiri pandiro yesimbi yepakati.Iyo imwe tetrafluoroethylene ndiro inoumba yechipiri inotsvedza nzvimbo, iyo inopedzisa kutambanudza uye kuruka kusimuka kwedanda nekuda kwezvikonzero zvakawanda zvekusiyana kwekushisa.
1. Bhora rinotakura rinotumira simba kuburikidza nepamusoro pe spherical surface, uye hapana simba rekuvhara mutsipa, uye simba rekuita rinoshanda pane kongiri rakafanana;
2. Bhora rinotakura rinoona kutenderera kwebheya kuburikidza nekutsvedza kwendiro ye spherical polytetrafluoroethylene.Iyo torque inotenderera idiki, iyo inonyanya kukodzera kune zvinodiwa zvekona.Kona yekugadzira inogona kusvika kupfuura 0.05rad;
3. Chibereko chacho chine maitiro akafanana anotenderera kumativi ose, akakodzera mabhiriji akafara uye mabhiriji akakomberedzwa;
4. Kubata hakudi kudzvinyirirwa nerubha, uye hapana simba rekukwegura kwerabha pakushanda kwekutenderera kwekutakura.Inonyanya kukodzera kunzvimbo dzakaderera dzekushisa.
