Izindlu ezithweleyo yinxalenye ye-roller ye-conveyor edibanisa i-roller kunye ne-bearing ebizwa ngokuthi "intliziyo" ye-roller.I-offset yesihlalo sokuthwala idlala indima ecacileyo kwindlela yomibini kunye nokumelana nokujikeleza kunye nokujikeleza kwe-roller yokuhambisa.Ukuba indawo yendlu yokuthwala ayihambisani neemfuno, iya kubangela ukuba i-roller radial run out-out-out-out of tolerance, kwaye ngenxa yokuba zombini iziphelo ze-bearing coaxial degree ayilungile, iya kubangela ukuba kumacala omabini e-shaft ehlukeneyo.Ukuhlanganiswa, kuya kubangela ukuba i-roller inyuse ukuchasana okujikelezayo kwe-roller roller, inganciphisi nje kuphela ubomi benkonzo, kodwa kunye nebhanti lonke elisebenza ngokunyuka kwamandla okusebenza.Ngoko ke, indibano yebhanti yokuthwala enye yeenkqubo eziphambili kwinkqubo yokuvelisa i-belt conveyor roller.Ukuze kulungiswe le ngxaki, ukuqinisekisa ukuba i-roller ethwele indawo yezindlu kunye namacala amabini edigri ye-coaxial yokuzala, umenzi kufuneka akhethe i-roller efanelekileyo kunye ne-roller tube roller, ukhethe ukuthwala okufanelekileyo, kunye nezindlu ezithwele.