An axle.
wheel and axle
Rod through center
The large part you grab and turn is the wheel. The rod down the center would be the axle.
name of rod on a spinning wheel
stearing wheel,wheel on a bike,real on a fishing rod
center of front wheel to center of rear wheel.
A rod to which a wheel or wheels is attached is an axle.
A tie rod basically completes the connection between the steering wheel and the wheel itself. It is what steers the vehicle.
The center part of the wheel is a spin
The center of a wheel or circle is called a hub.
A wheel and axle
Rear wheel drive, tie rod ends, pitman arm, gear box itself. Front wheel drive, tie rod ends or the rack and pinion.