cogwheel vs geared wheel

cogwheel and geared wheel both are nouns.

Word	Noun	Adjective	Verb	Adverb
cogwheel	Yes	No	No	No
geared wheel	Yes	No	No	No

As nouns, cogwheel and geared wheel are synonyms defined as:

cogwheel and geared wheel: a toothed wheel that engages another toothed mechanism in order to change the speed or direction of transmitted motion

Other synonyms of cogwheel include gear, gear wheel.

cogwheel (noun)	geared wheel (noun)
a toothed wheel that engages another toothed mechanism in order to change the speed or direction of transmitted motion	a toothed wheel that engages another toothed mechanism in order to change the speed or direction of transmitted motion