For these reasons there are minimum diameters of sheaves recommended from practical experience for various types of ropes moving at speeds not exceeding 200 ft/min.
Ngezizathu kukho izinqumla sangqa ezincinane zeshivi ezithathelelwa kumava ukwenzela iintlobo ezithile zentambo ezihamba ngesantya esingagqithanga ku200 ngomzuzu.