Over many centuries, block-and-tackle systems, or rope and pulley systems as they are more commonly known, have been used to help construct a variety of famous buildings, including the Colosseum in ...

Cable sheaves made from wear-resistant, monocast nylon protect umbilicals for launch and recovery applications and cable tethers for deploying submersibles or offshore exploration and production. The ...

San Francisco’s iconic cable cars are hoisted uphill by 35-year-old wheels called “sheaves,” which pull massive steel cables at 9.5 miles per hour. Now, those 25 underground sheaves will be rebuilt ...