Chingwe ndi cholumikizira chomwe gudumu limazungulira, nthawi zambiri chimakhala ngati foloko. Mafoloko apamwamba ndi otsika ali ndi mabowo awiri ozungulira a kingpin, ndipo cholumikizira cha chingwe chimagwiritsidwa ntchito kuyika gudumu. Ma lugs awiri a mabowo a pini mu cholumikizira amalumikizidwa ku gawo looneka ngati chibakera kumapeto onse a axle yakutsogolo kudzera mu kingpin, zomwe zimathandiza kuti gudumu lakutsogolo litembenuke kingpin pa ngodya kuti liwongolere galimotoyo. Kuti achepetse kuwonongeka, bushing yamkuwa imakanizidwa mu dzenje la chingwe cha chingwe, ndipo mafuta a bushing amathiridwa mafuta mu nozzle yomwe imayikidwa pa chingwe. Kuti chiwongolero chikhale chosinthasintha, ma bearing amakonzedwa pakati pa chingwe chapansi cha chingwe chowongolera ndi gawo la chibakera cha axle yakutsogolo. Gasket yosinthira imaperekedwanso pakati pa khutu ndi gawo la chibakera cha chingwe chowongolera kuti asinthe mpata pakati pawo.
