Sijolisa kwaye silawula zonke iinkcukacha zemveliso, kuphela ukuhanjiswa kweemveliso ezilungileyo kubathengi.
Izinto eziphathekayo zebherethi ye-slewing ngokubanzi ziyi-alloy-structural steels, ezifana ne-42CrMo, 50Mn.
Imathiriyeli yequmrhu eliqengqelekayo yi-GCr15 kwaye ithengwa kubaboneleli basekhaya abakumgangatho ophezulu.
Imveliso ekhoyo iquka: Ibhola eNye kunye neDouble Row, i-Three Roller, i-Cross Roller etywiniweyo kunye ne-Internal Geared engavaliweyo, i-External Geared kunye ne-Non-Geared Clearance okanye i-Preloaded.