Kukhazikika kwa chotengera ndi mphamvu yofunikira kuti ipangitse kusinthika kwamtundu.The zotanuka mapindikidwe ogubuduza fani ndi kochepa kwambiri ndipo akhoza kunyalanyazidwa mu makina ambiri.Komabe, m'makina ena, monga ma spindle a zida zamakina, kukhazikika ndikofunikira.Zovala za cylindrical ndi tapered roller nthawi zambiri zimagwiritsidwa ntchito.Chifukwa chakuti mitundu iwiri ya mayendedwe amanyamulidwa, zinthu zogubuduza ndi njira zothamanga zimalumikizana, ndipo kusinthika kwa zotanuka kumakhala kochepa komanso kulimba kwake ndikwabwino.Mitundu yonse ya mayendedwe amathanso kuyimitsidwa kale kuti muwonjezere kulimba kwa chithandizo.Mwachitsanzo, mayendedwe aang'ono kukhudzana mpira ndi mayendedwe tapered wodzigudubuza, pofuna kupewa kugwedezeka kwa kutsinde ndi kuonjezera rigidity wa thandizo, ena axial mphamvu zambiri ntchito pa nthawi ya unsembe kukanikiza iwo kutsutsana wina ndi mzake.Zoonadi, kuchuluka kolimba koyambirira sikuyenera kukhala kwakukulu.Ngati ndi yaikulu kwambiri, kukangana konyamula kudzawonjezeka ndipo kutentha kumawonjezeka, zomwe zidzakhudza moyo wautumiki wa kunyamula.