What is the term for a sprocket-like wheel with chain-link pockets?

The term that best describes a sprocket-like wheel with chain-link pockets is "chain wheel." A chain wheel is specifically designed to engage with a roller chain, allowing for the transfer of power from one part of a machine to another. These wheels have teeth or pockets that fit into the links of the chain, facilitating motion and torque transmission.

The term "pocket wheel" might be misleading as it does not accurately convey the specific function and design associated with the engagement of chains and sprockets. Meanwhile, a "gear wheel" typically refers to wheels with teeth that mesh together, usually not designed for roller chains, and a "link wheel" is not a standard industry term recognized for such components. Understanding this terminology is crucial for effective communication and application in rigging and hoisting practices.