Ama-bearings ahlukene ahlukene anezici ezihlukene futhi afanele izimo ezihlukahlukene zokusetshenziswa kwemishini ehlukahlukene yemishini. Izisebenzi zokukhetha kufanele zikhethe imodeli yokuthwala efanelekile kubakhiqizi abahlukene abaphethe kanye nezinhlobo eziningi zokuthwala.

1. Khetha imodeli yokuthwala ngokuya ngendawo kanye nendawo yemishini eyimishini ehlala i-bearing:

Ngokuvamile sisebenzisa ibholaama-bearingsama-shafts amancane, nama-roller bearings ama-shafts amakhulu. Uma ububanzi bokuthwala bulinganiselwe, ngokuvamile sisebenzisa ama-roller enaliti ama-bearings, ama-ultra-light ball bearings noma ama-roller bearings; lapho ukuthwala kunqunyelwe engxenyeni ye-axial yemishini, uchungechunge oluncane noma oluncane kakhulu lwama-ball bearings noma ama-roller bearings.

2. Khetha imodeli yokuthwala ngokusho komthwalo. Umthwalo kufanele kube yinto ebaluleke kakhulu okufanele icatshangelwe lapho ukhetha ama-bearings:

Ama-roller bearings angakwazi ukumelana nemithwalo emikhulu, kuyilapho ama-ball bearings mancane. Amabhereli enziwe ngensimbi ye-carburized angakwazi ukumelana nokushaqeka nokudlidliza. Lapho kudingeka imithwalo ye-radial kuphela, singakhetha ama-thrust ball bearings, ama-cylindrical roller bearings noma ama-roller bearings enaliti. Lapho umthwalo we-axial umncane kakhulu, singakhetha i-thrust ball bear; lapho umthwalo we-axial mkhulu uma kuqhathaniswa, i-thrust roller bear ngokuvamile isetshenziswa. Lapho i-bearing ithwala yomibili imithwalo ye-axial ne-radial, ngokuvamile sisebenzisa ama-angular amabhola okuxhumana noma ama-roller ama-tapered.

3. Ngokuhambisana nezici zokuziqondanisa zokuthwala, khetha imodeli yokuthwala:

Uma i-axis ye-shaft ingafani ne-eksisi yesihlalo esiphethe, noma kulula ukugoba noma ukutsheka ngaphansi kwengcindezi, ibhola eliziqondanisayo noma i-roller eligning eligner elinomsebenzi omuhle kakhulu wokuziqondanisa, futhi yangaphandle ibhola eziveza kungenziwa kukhethwe. Lolu hlobo lokuthwala lungaqinisekisa umsebenzi ojwayelekile lapho i-shaft igobile kancane noma igobile. Ubuhle nobubi bomsebenzi wokuziqondanisa webhere kuhlobene nokungahambelani kwayo okungaba khona. Uma likhulu inani, kuba ngcono ukusebenza kokuziqondanisa.

4. ngokusho kokuqina kwe-bearing, khetha imodeli yokuthwala:

I-deformation elastic of rollingama-bearingsayinkulu futhi ingashaywa indiva ezintweni eziningi ezisebenza ngomshini, kodwa kwezinye izinto zokusebenza zemishini, njengeziphotha zethuluzi lomshini, ukuthwala ukuqina kuyisici esibalulekile.
Ngokuvamile sisebenzisa amabhere angama-cylindrical roller noma ama-roller ama-tapered kuma-spindle amathuluzi omshini. Ngenxa yokuthi lezi zinhlobo ezimbili zama-bearings zingezamaphuzu okuxhumana lapho zingaphansi komthwalo, ukuqina akunamandla.
Ngaphezu kwalokho, ama-bearings ahlukahlukene angasebenzisa futhi ukulayisha kuqala ukukhulisa ukuqina kokuthwala. Okufana namabheringi angama-angular othintana naye nama-roller ama-tapered, ukuze kuthuthukiswe ukuqina kokusekelwa, i-axial force ethile ivamise ukungezwa kusengaphambili ngesikhathi sokuhlanganiswa ukuze ibenze babambane. Kugcizelelwa kakhulu lapha: amandla okulayisha kuqala awakwazi ukuba makhulu kakhulu. Uma kungenjalo, ukungqubuzana kwe-bearing kungase kwande, ukunyuka kwezinga lokushisa kuzokwanda, futhi impilo yesevisi yokuthwala izoba sengozini.

5. ngokuya ngesivinini sokuthwala, khetha imodeli yokuthwala:

Ngokuvamile, ama-angular contact bearings kanye nama-cylindrical roller bearings afaneleka ukusetshenziswa ezindaweni zokusebenza ezinesivinini esikhulu; ama-roller bearings tapered angasetshenziswa ezindaweni zokusebenza ezinesivinini esiphansi. Ama-thrust ball bearings anesivinini esilinganiselwe futhi afanele izindawo ezinesivinini esiphansi kuphela.

Ohlotsheni olufanayo lokuthwala, ukucaciswa okuncane, kuphakama isivinini esivumelekile sokujikeleza. Uma ukhetha imodeli yokuthwala, naka isivinini sangempela esingaphansi kwesivinini esilinganiselwe.