Isihlalo sokuthwala i-roller sidlala indima ebalulekileyo kwi-conveyor kwaye yinxalenye ebalulekileyo ye-roller.Ngenxa yobuninzi beentlobo zeentlobo, ukusebenza kwayo kuye kwaba ngundoqo wokuqinisekisa umgangatho we-roller.Ngokukodwa kwizixhobo ze-roller kwi-bearing, ubomi be-roller bunobudlelwane obuthe ngqo, isizathu esilandelayo sokuba lula ukuhlalutya uhlalutyo olulula.
1) izinto ezithwalayo azihambisani nemigangatho, kulula ukuyisebenzisa kwinkqubo yokukhukuliseka okubangelwa ukuchithwa kwangaphambili.
2) ukufakwa kweebheringi kukwasinye sezizathu zomonakalo, ukufakwa okufanelekileyo kokusebenza kunye nobomi kuhambelana, kunye nokufakwa kolawulo loxinzelelo ngokufanelekileyo, kodwa nokunciphisa ukuthwala ukuthwala.
3) ukuthwala akucocwanga okanye isixhobo asomisi umsebenzi, ukuthwala akuzange kukhutshwe imagnethi, kulula kakhulu ukufunxa uthuli, ngoko ke kuyingozi kakhulu ekusebenziseni kwayo, kuba amanzi kunye nothuli lubangela ukukhukuliseka ngokulula, kubangela umonakalo.

I-roller ikakhulu iqulunqwe yi-cylinder, i-spindle, isihlalo sokuthwala, i-ring recretion, isakhiwo sokutywinwa kunye nesihlalo sokuthwala.Kodwa njani ukukhetha ukuthwala?Okwangoku, ukusetyenziswa okuphambili kweebheringi zebhola ze-groove radial kunye ne-tapered roller bearings.

I-deep groove radial ibhola evelisa inzuzo:
I-1) ingenziwa i-clean enkulu, evumela ukuba i-spindle ibe nempazamo enkulu yokucubungula kunye nokuguqulwa kokugoba;
2) ukubaleka ukumelana ngaphantsi kancinci kuneebheringi tapered roller, ixabiso liphantsi.

Izinto ezingeloncedo:
1) ukunganyangeki kwempembelelo embi;
2) akakwazi ukufumana amandla amakhulu e-axial;
3) ukunganyangeki kwe-corrosion;
4) ubomi benkonzo buphantsi;
5) zikhulu ngobukhulu kuneebheringi ze-tapered roller phantsi komthamo ofanayo wokuthwala.

Izinto eziluncedo kwiibheringi ezine-tapered roller:
1) inomthamo omkhulu we-radial kunye ne-axial;
2) kumthamo ofanayo womthwalo kunye neemeko zobomi, ubungakanani buncinci kunomdlalo webhola;
3) ukulawulwa kakuhle, nokuba i-axial clearance okanye i-preload, inokuthi ilungiselelwe ukufezekisa ukusebenza kakuhle;
4) ukufakela kunye nokususwa kulula kakhulu;
5) phantsi komthwalo ofanayo kunye neemeko zobomi, ixabiso liphantsi;
6) kunye nomthamo wokuzikhupha;
7) inokumelana nempembelelo enamandla.

Izinto ezingeloncedo:
1) ukusetyenzwa, iimfuno zokuchaneka kwendibano, ukusetyenzwa kunye nokuhlanganisa ubomi obunempembelelo enkulu;
2) ukubaleka uxhathiso phezulu kancinci kunombhobho onzulu webhola yeradial.
Zombini i-roller kunye ne-roller seals ziyimveliso ezisetyenziswa rhoqo kwishishini.I-roller isetyenziswa ikakhulu kwezinye ii-conveyors, ezo zokuhambisa ibhanti, zibaluleke kakhulu.