Kuwonjezera pa kukongola, ili ndi ntchito zina - kukuuzani "gudumu lalikulu" lenileni
Nthawi zambiri timanena kuti mphete yachitsulo yozungulira (kapena mphete ya aluminiyamu) yodzaza ndi matayala si hub, dzina lake lasayansi liyenera kukhala "gudumu", chifukwa nthawi zambiri imapangidwa ndi chitsulo, kotero nthawi zambiri imatchedwanso "mphete yachitsulo". Ponena za "hub" yeniyeni ndi mnansi wake, imatanthauza kukhazikitsidwa kwa chothandizira pa axle (kapena chowongolera), nthawi zambiri imadutsa mkati ndi kunja kwa mabearing awiri a cone (angagwiritsenso ntchito chogwirira chawiri) chomwe chimayikidwa pa axle, ndikukhazikika ndi nati yotsekera. Imalumikizidwa ndi gudumu kudzera pa screw ya tayala, komanso pamodzi ndi tayala kupanga gudumu, lomwe limagwiritsidwa ntchito kuthandizira galimoto ndikuyendetsa galimoto. Mawilo omwe timawaona akuzungulira mofulumira kwenikweni ndi kuzungulira kwa mawilo. Zinganenenso kuti m'zigawo zitatu za hub, rim ndi tayala, hub ndi gawo logwira ntchito, pomwe rim ndi tayala ndi magawo osagwira ntchito. Tiyenera kudziwa kuti disc ya brake (kapena beseni la brake) imayikidwanso pa hub, ndipo mphamvu ya braking ya galimoto imayendetsedwa ndi hub.