gear **
gear wheel
geared wheel
cogwheel

It started with the production of gear wheels and various machinery.

There was a little clicking sound, as the youth moved some gear wheel on his gun.

The left gear wheels touched down about 326 feet ahead of the runway threshold.

The machinery was removed, with the gear wheels being cut in half and used as decoration within the mill.

The gear wheels jammed on it and the clock stopped.

Then he simply turned a gear wheel with his hand until the mechanism picked up the momentum for itself and started again on its own.

She had been sidelined early by a broken gear wheel.

There were giant claw hands, enormously powerful arms, moving gear wheels.

A gear wheel rolled out and rattled on the floor.

In the lower part is a section of a gear wheel.