A hub wheel is a type of wheel that features bearings enclosed within the hub of the wheel. These bearings enable the wheel to rotate smoothly and efficiently around its axle. The design of a hub wheel allows for quick and easy removal in case of maintenance or flat tire. Hub wheels are commonly found on a variety of vehicles including bicycles, wheelbarrows, and some types of cars. They are appreciated for their durability, ease of use, and smooth performance. In the case of bicycles, hub wheels can be designed to enable riders to change gears without stopping, which is referred to as a hub gear. Overall, the hub wheel has proven to be a beneficial invention that has helped to revolutionize the way we transport goods and people.