COGWHEEL is a playable word

cogwheel Scrabble® Dictionary

noun
pl. cogwheels
a toothed wheel
73 Playable Words can be made from "COGWHEEL"
   2-Letter Words (12 found)
   3-Letter Words (27 found)
   5-Letter Words (5 found)
   6-Letter Words (2 found)
   8-Letter Words (1 found)