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About crane pulley block
Oct 13, 2017

The crane pulley block is a simple machine assembled by a plurality of moving crane pulleys and fixed pulleys, which can save labor and change the direction of force. The efficiency of the crane pulley block is determined by the number of strands, and its mechanical efficiency is determined by the gravity of the pulled object, the gravity of the moving crane pulley and friction. The crane pulley is a small wheel with a groove around it and can rotate around the shaft. A simple mechanical [1], consisting of a circular disk that can rotate around a central shaft and a flexible rope (rope, belt, rope, chain, etc.) that crosses the disk, can be rotated around the central axis.

The crane pulley is a small wheel with a groove around it and can rotate around the shaft. A simple machine consisting of a disk with a groove around a central axis and a flexible rope (rope, tape, rope, chain, etc) that crosses the disk can be rotated around the central axis, called a crane pulley

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