MroMax M50 Lifting Crane Swivel Hook Single Pulley Block Hanging Wire Towing Wheel 304 Stainless Steel Silver Tone 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.

Features & details: Main Material: 304 Stainless Steel; Sheave diameter: 50mm / 1.97 inch; Overall Height: 130mm / 5.12 inch; Sheave U width:14mm / 0.55 inch ; Accept Max Weight: 400kg.