Thick{0}}cov kabmob uas muaj cov kabmob tuaj yeem raug pov. Txhawm rau txhim kho kev sib txhuam kev ua tau zoo, txheej txheej ntawm cov kabmob alloy (hu ua cov kabmob liner) tuaj yeem muab pov rau sab hauv ntawm lub plhaub kabmob. Txhawm rau kom muaj kev sib raug zoo ntawm cov kabmob alloy thiab cov kabmob plhaub, ntau hom tenons, grooves, lossis threads feem ntau ua rau sab hauv ntawm cov kabmob plhaub. Nyias-cov kabmob cov kabmob tuaj yeem yog qhov loj- tsim los siv cov txheej txheem xws li txuas ntxiv dov ntawm cov nplooj ntawv bimetallic.
Hmoov metallurgy koom nrog kev sib xyaw hmoov hlau lossis tooj liab thiab lwm yam ntaub ntawv yooj yim nrog graphite, tom qab ntawd nias thiab sintering rau hauv cov duab. Cov pores tuaj yeem khaws cov roj lubricating, ua rau cov roj- impregnated bearings.
Cov kabmob plhaub cov ntaub ntawv feem ntau yog mos, thiab sab hauv cylindrical nto tsis haum rau kev sib tsoo. Kev tho txawv, pob zeb diamond tho txawv, scraping, lossis lapping txoj kev tuaj yeem siv. Thaum lapping, txoj kev sib piv cov ncej txoj kab uas hla yuav tsum tsis txhob siv; Hloov chaw, ib qho tshwj xeeb ua lapping bar nrog tib qhov ntev raws li lub plhaub bearing yuav tsum tau siv. Scraping feem ntau yog siv rau ib feem ntawm cov kabmob, siv dav -bladed scraper. Thaum scraping ntawm tes, cov qhab nias yuav tsum ntiav. Rau cov kabmob bushes nrog cov duab puab sab hauv, cov txheej txheem tho txawv tshwj xeeb yuav tsum tau siv raws li cov duab tshwj xeeb.