Usibye ubwiza, ifite indi mirimo - kukubwira "ibiziga byukuri"
Dukunze kuvuga ko impeta y'icyuma (cyangwa impeta ya aluminium) yuzuye amapine mubyukuri ntabwo ari ihuriro, izina ryayo ry'ubumenyi rigomba kuba "uruziga", kuko muri rusange rikozwe mu byuma, inshuro nyinshi nanone ryitwa "impeta y'icyuma". Kubijyanye na "hub" nyayo ni umuturanyi wayo, bivuga kwishyiriraho inkunga kumurongo (cyangwa kuyobora knuckle), mubisanzwe unyuze mumbere no hanze ibiri ya cone (ishobora no gukoresha ibyuma bibiri) yashyizwe kumurongo. , kandi bikosorwa hamwe nimbuto ifunze. Ihujwe nuruziga runyuze mumapine, kandi hamwe nipine kugirango ikore inteko yibiziga, ikoreshwa mugushigikira imodoka no gutwara imodoka. Ibiziga tubona bizunguruka byihuse ni ukuzenguruka kwiziga. Birashobora kandi kuvugwa ko mubice bitatu bigize hub, rim na tine, ihuriro nigice gikora, mugihe uruziga nipine ari ibice byoroshye. Twabibutsa ko disiki ya feri (cyangwa igikarabiro cya feri) nayo yashyizwe kuri hub, kandi imbaraga zo gufata feri yimodoka zitwarwa na hub.