wormwheel 
noun
The wheel of a worm gear.For example, the wormwheel may be formed from sintered iron whilst the worm is made of carbon steel....
- The 120-tooth wormwheel drives the first gear of the bevel gear cluster via the shaft to which both are affixed.
- The Wire drive unit is of proven design utilising intermeshed steel wormshaft and bronze wormwheels.
- put a period to
- put a price on
- put-aside
- put a sock in it
- put a spoke in someone's wheel
- put a stop to
- putative
- putative father
- putatively
- putative marriage
- put-away
- putback
- putcher
- putchism
- putchock
- putchuck
- putchuk
- put down
- put-down
- put down (or enter) one's (or someone's) name
- put down roots
- puteal
- puter
- put flesh on (the bones of) something
- put foot