A worm gear is a type of gear,
engaging with a worm to significantly reduce rotational speed, or
allowing higher torque to be transmitted. The gear can achieve a higher
gear ratio than spur gears of the same size.
Materials Used
Worm gears can be constructed from a number of materials depending on
the end application. Some of the popularly use materials are :
- Brass
- Stainless steel
- Cast iron
- Aluminum
- Hardened steel
The gears can operate under difficult conditions and have the
ability to achieve large speed reductions. The gears also transmit high
loads at high speed ratios.
Types of Worm Gears
- Non-throated
- Single-throated
- Double-throated
Use of Worm Gears
These gears find application in :
- Electric motors
- Automotive components