Hariho ubuso bunini buri hagati yisahani yo hepfo, bihuye na plaque yo hagati.Hano hari isahani ya PTFE isahani iri hagati yibi byombi.Ubuso bwa serefegitura buranyerera hamwe kugirango buhaze kuzenguruka kumutwe;icyuma kidafite ingese ku cyapa cyo hejuru kiri ku cyapa cyo hagati.Ubundi isahani ya tetrafluoroethylene igizwe nubuso bwa kabiri bwo kunyerera, bwuzuza kurambura no gutambutsa urumuri bitewe nimpamvu nyinshi zo gutandukanya ubushyuhe.
1. Umupira utwara imbaraga zinyura hejuru yubuso, kandi nta mbaraga zo kwinika ijosi, kandi imbaraga zo gukora zikora kuri beto zirasa;
2. Umupira wikurikiranya umenya uburyo bwo kuzunguruka kwinyuze mu kunyerera kwa plaque polytetrafluoroethylene.Umuzenguruko uzunguruka ni muto, ukwiranye cyane cyane nibisabwa mu mfuruka.Igishushanyo mbonera gishobora kugera kuri 0.05rad;
3. Imyenda ifite imikorere imwe izunguruka mu byerekezo byose, ibereye ibiraro bigari n'ibiraro bigoramye;
4. Imyenda ntigomba gukandamizwa na reberi, kandi nta ngaruka zo gusaza kwa rubber kumikorere yo kuzunguruka.Irakwiriye cyane cyane ahantu hafite ubushyuhe buke.
