Yes, the word 'axle' is a noun; a word for the central shaft for a rotating wheel or gear; a word for a thing.
It is the center shaft of a rotating wheel or gear.
A cam
reciprocating motion in an appliance is obtained from a rotating motor shaft with the aid of
A rotating shaft
A rotating shaft
A shaft is usually longish bit of rotating machinery, made to transfer rotating power. Eccentric means off-center. Either the shaft isn't round, or it's not mounted at the center of wherever it it.
whenever the bus or train starts moving, there will be a shaft connected to the wheel mechanism which will be rotated. By rotating the shaft the power will be generated which is stored in the batteries. this stored power will be utilised for running the air conditioner.
A shaft bearing is a low friction support device for a rotating member of a mechanical machine.
Shaft center to center
No.
a small metal rectangle ( example 1/4" x 1/4" x 1 long ) that locks a wheel or pulley from rotating on a shaft.