MC NYLON Sheave/Pulley, Various Types Available, Specially for all kinds of ... , whick provides mobile cranes with greater stability and lifting capability. (2) Improved wire rope life: self- lubricating, hardness lower than steel ... maintenance. (5) Corrosive resistance: non-corrosive benefits for sea use. 2. Application: Wire rope sheave, roller, gear, shaft sleeves, supporting wheel ...