A block is a set of pulleys or "sheaves" mounted on a single axle. An assembly of blocks with a rope threaded through the pulleys is called tackle. A block and tackle system amplifies the tension force in the rope to lift heavy loads. They are common on boats and sailing ships, where tasks are often performed manually or by machine.Transmission Pulley Blocks are available in many different sizes, capacities and types. Our Rigging range has most complete line of blocks and related rigging equipment. We work hard to provide unique needs with service that is unparalleled. We have served the heavy lifting and rigging industries for years and are here to provide all of your block requirements.
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