toothed wheel
Definition
Noun: A wheel with teeth or cogs around its edge, designed to mesh with another toothed part to transmit motion or force, or specifically to perforate a line of holes.
Usage
A toothed wheel is a mechanical component. Its primary function is to engage with a chain, another gear, or a surface to drive motion, change speed or direction, or create a series of perforations.
Examples
- The clock's mechanism relies on a series of precise toothed wheels to keep accurate time.
- In the factory, a large toothed wheel turned, pulling the sheet of metal through the perforating machine.
- The bicycle's chain slips if the toothed wheel (the rear sprocket) is worn or damaged.
Advanced Usage
- As a general term for a gear: In many contexts, "toothed wheel" is a descriptive synonym for a "gear," especially a simple spur gear.
- The engineer explained that the system's failure began when the smallest toothed wheel lost three teeth.
- In a specific tool context: It can refer specifically to the cutting or punching wheel in a tool like a perforator or a film sprocket.
- Replace the toothed wheel on the ticket punch to get clean perforations again.
Variants and Related Words
- Gear (n.): A more common and general term for a rotating machine part with teeth.
- Cog (n.): Often used interchangeably with "toothed wheel," but can specifically refer to a tooth on such a wheel or a simple gear.
- Sprocket (n.): A toothed wheel designed to engage with a chain or track.
- Pinion (n.): A small toothed wheel that engages with a larger one (a rack or gear).
Synonyms
- Gear
- Cogwheel
- Sprocket (in chain-drive contexts)
Related Phrases
- Toothed wheel and pinion: A common gear pair where a small gear (pinion) drives a larger one.
- Mesh with: The action of a toothed wheel engaging with another.
- The drive toothed wheel must mesh with the secondary gear perfectly for the system to function.
Noun
-
a wheel with teeth for making a row of perforations
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