TheSimscape DrivelineCouplings and Drives library includes pulley blocks that allow you to transmit power. TheBelt Pulleyblock represents a simple belt-driven friction pulley. TheBelt Driveblock combines twoBelt Pulleyblocks that you can configure as an open or crossed belt system. You can model a simple hoist using theBelt Pulley. To model more complex mechanisms, combine several pulley blocks with tensioners, which you build using springs and dampers. Build high-fidelity models by including other Simscape andSimscape Drivelineblocks.