Pob bearings feem ntau yog tsim los ntawm plaub yam tseem ceeb: pob, sab hauv lub nplhaib, lub nplhaib sab nrauv thiab tus tuav, tseem hu ua tawb lossis tus tuav. Kev lag luam pob dav dav ua tau raws li AISI 52100 tus qauv.
Cov pob thiab lub nplhaib feem ntau yog ua los ntawm cov hlau siab chromium, nrog Rockwell C-nplai nyuaj ntawm 61-65. Lub zog ntawm tus tuav tau qis dua li cov pob thiab lub nplhaib, thiab nws cov ntaub ntawv yog hlau (xws li cov pa roj carbon nruab nrab, aluminium alloy) lossis tsis yog hlau (xws li Teflon, PTFE, cov khoom siv polymer). Pob bearings muaj kev sib txhuam tsis sib haum ntau dua li phau ntawv sau xov xwm, yog li ntawm qhov nrawm, qhov kub uas tsim los ntawm kev sib txhuam yuav qis dua.
