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Hub
01
the central part of a wheel where the axle is housed, allowing the wheel to rotate freely
What is a "hub"?
A hub is the central part of a wheel where it attaches to the vehicle. It connects the wheel to the axle and allows it to rotate smoothly. The hub also contains parts that help reduce friction and make the wheel turn efficiently. In addition to supporting the wheel, the hub often has bolts or fasteners that hold the tire in place. Hubs are found on all vehicles with wheels, from cars to bicycles, and are crucial for the vehicle’s movement and stability.
Example
The mechanic inspected the hub bearings to ensure smooth wheel rotation.
The racing team upgraded the car 's hubs to improve handling and performance.
Example
The city is a major transportation hub, connecting flights from around the world.
The tech hub of the country is home to many startups and innovation centers.
03
a central station, airport, etc. that provides passengers with many services
