Uxcell M15 Lifting Crane Swivel Hook Single Pulley Block Hanging Wire Towing Wheel 2pcs

A Crane Pulley Block is a kind of hoisting tool, also called a sheave, is a mechanism composed of a wheel on an axle or shaft that may have a groove between two flanges around its circumference. A rope, cable, belt, or chain usually runs over the wheel and inside the groove, if present. Pulleys are used to change the direction of an applied force, transmit rotational motion, or realize a mechanical advantage in either a linear or rotational system of motion.

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1.Package Content: 3pcs x Crane Pulley Block; Main Material: Zinc Alloy; 2.Sheave Size: 25*9mm (D*T) ; Overall Size: 57*25*17mm (L*W*H); 3. Suitable

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