Synonyms for cog wheel
EXAMPLES FROM THE WEB FOR COG WHEEL
Then the boys fastened the windlass by the catch at the side of the cog wheel, put there for the purpose.
Do you know, I think when I was built they left out a cog wheel or something in my head.
The axle of the motor has worm gear operating a cog wheel on the main shaft.
The driving gear too, with the exception of one cog wheel, was in workable order.