Kev manufacturers yog bearing tsa ntawm kev sib raug zoo ferrite hlau nplaum meem, feem ntau yog tooj liab los yog cov nylon bearing khoom, uas yog siv roj lubrication. Hav txwv yeem mas yooj yim rau nws hnav, yuav muab dov runout ua teb nyob rau hauv tus txheej txheem, xyuas cov khoom dimension tolerances nyuab nyuab heev. Vim li no, hauv daim ntawv thov raws yuav tsum li siv precision muaj ob-kab radial uas quav bearings, thiab siv cov roj lubrication, tsis coj hab kuas pawg thawj coj saib sib nqus thickness tolerances raws lub sijhawm.
Vim hais tias cov pellets no tsis tshua ua kua, tshwj xeeb yog nyob lub dav li siab xav qaug ntawm Intermolecular yuam thiab flexural deformation ntawm yob, dov tawm lub Rooj Tswjhwm Saib sib nqus hauv ib dav kev taw qhia feem ntau tshwm tuab ntawm ob tog thiab nyias nyob hauv nruab nrab. Raws li variance yuav tsi rewinding coils nruj, xoob rau ob tog. Tshuaj no txoj ntseg yuav siv tau rau cov variance hauv thickness "l" yam plaub-yob rolling zeb. Qhov calender nrog tus co. hla thiab tos khoov muaj nuj nqi. Txawm li ntawd los, cov daim qauv txoj, kim, npog, nkawm phim thiab nqi tsev thiab nqi yuav tsum siab khiav. Vim li no, peb muaj tsim ntawv superior uas ob tug menyuam qhib qhov calender no.
