Zodzigudubuza za Conical nthawi zambiri zimakhala zozungulira, zokhala ndi mainchesi okulirapo mbali imodzi ndi mainchesi ang'onoang'ono kumapeto kwina. Mapangidwe awa amalola odzigudubuza kuwongolera bwino zinthu zozungulira ma curve mumayendedwe otumizira. Zigawo zazikulu za ma roller a conical ndi chipolopolo cha roller, ma bearings, ndi shaft. Chigoba chodzigudubuza ndi chakunja chakunja chomwe chimakhudzana ndi lamba wotumizira ndi zinthu zomwe zimanyamulidwa. Ma bearings amagwiritsidwa ntchito kuti ...