N'oge gara aga, wheel hub bearings nke ụgbọ ala na-eji otu ahịrị tapered roller ma ọ bụ blọlụ bọọlụ na abụọ. Site na mmepe nke teknụzụ, a na-eji nkeji ụgbọ ala eme ihe na ụgbọ ala. Ngwa ngwa na ọnụ ọgụgụ nke hub bearing unit na-abawanye kwa ụbọchị, ma ugbu a ọ tolitere ruo ọgbọ nke atọ: ọgbọ mbụ bụ nke nwere ọnụọgụ kọntaktị abụọ n'ahịrị. Ọgbọ nke abụọ nwere flange n'okporo ụzọ ịgba ọsọ dị n'èzí maka idozi ihe nkedo ahụ, nke nwere ike ijide aka ya na axle wee dozie ya na mkpụrụ. Mee ka nlekọta nke ụgbọ ala dịkwuo mfe. Ọgbọ nke atọ wheel hub na-ebu unit na-anabata nchikota nke ibu unit na mgbochi mkpọchi sistem ABS. Ejiri flange dị n'ime yana flange dị n'èzí chebere nkeji hub. A na-edobe flange dị n'ime n'elu oghere mbanye na bolts, na mpụta flange na-etinye ọnụ ọgụgụ dum ọnụ. Ihe mkpuchi wiil nke eyighị ma ọ bụ mebiri emebi ma ọ bụ akụkụ nke wheel ga-eme ka ụgbọ ala gị daa n'ụzọ na-ezighi ezi ma dị oke ọnụ, na-emerụkwa nchekwa gị.