Xa ukhetha uhlobo lokuthwala, ezi zinto zintlanu zilandelayo kufuneka ziqwalaselwe:

I-1) Umkhombandlela, ubungakanani kunye nohlobo lomthwalo: Iibheringi zeRadial ikakhulu zithwala imithwalo ye-radial, ii-thrust bears zifumana imithwalo ye-axial.Xa ukuthwala kuxhomekeke kwimithwalo yomibini ye-radial kunye ne-axial, iibhola zebhola ze-angular kunye ne-tapered roller bearings zingakhethwa.Xa umthwalo we-axial umncinci, iibhola zebhola ze-groove ezinzulu nazo zingasetyenziswa.Ngokubanzi, amandla okuthwala iibheringi ze-INA ziphezulu kuneebhola ze-INA, kwaye ukukwazi ukumelana nemithwalo yempembelelo yomelele.

2) Isantya: Isantya sokusebenza sokuthwala kufuneka sibe ngaphantsi kwesantya somda n.Isantya somda we-deep groove ball bearings, i-angular contact ball bearings kunye ne-cylindrical roller bearings iphezulu, ifanelekele ukusebenza ngesantya esiphezulu, ngelixa isantya somda we-thrust bearings siphantsi.

I-3) Ukusebenza kokuzilungelelanisa: Xa i-coaxiality yemingxuma yezindlu ezithwele isibini ayinakuqinisekiswa okanye ukuphambuka kwe-shaft kukhulu, kuya kufuneka uqikelele ukusebenzisa ii-spherical ball bearings okanye i-spherical roller bearings.

I-4) Iimfuno zokuqina: Ngokuqhelekileyo, ukuqina kwee-roller bearings kukhulu kunebhola ye-INA yebhola, kunye ne-angular contact ball bearings kunye ne-tapered roller bearings inokuthi ifakwe ngaphambili ukunyusa ukunyusa ukuqina kwenkxaso.

I-5) Iimfuno zomda wenkxaso: I-Fixed ixhasa umda we-axial displacement kwiindlela ezimbini.Iibheringi ezinokumelana nemithwalo ye-axial ye-bidirectional inokukhethwa.Imida yendlela enye inokukhethwa kunye neebheringi ezinokuxhasa imithwalo ye-axial ye-unidirectional.Akukho mda kwiinkxaso ezidadayo.Isikhundla, sinokukhetha i-cylindrical roller bearing amakhonkco angaphakathi nangaphandle anokwahlulwa.