Common challenges related to
threaded fasteners in a gearbox
![](https://tryloctite-images-s3.s3.ap-south-1.amazonaws.com/images/img-threaded-fasteners.original.jpg)
Apparent causes behind these challenges
Vibrations
Thermal fluctuations
Tough operating conditions
Root Cause
![](https://tryloctite-images-s3.s3.ap-south-1.amazonaws.com/images/root-cause-img.original.jpg)
There are gaps between engaging threads, with only 15% metal to metal contact, while the rest of the 85% is air. This air gap allows
- Vibration to cause side-to-side motion leading to self-loosening
- Differential expansion and contraction of substrates due to service temperature changes
- Corrosive environment to attach the metal fasteners
loctite solution
![](https://tryloctite-images-s3.s3.ap-south-1.amazonaws.com/images/solution-243-img.original.jpg)
![](https://tryloctite-images-s3.s3.ap-south-1.amazonaws.com/images/loctite-243.original.jpg)
Loctite 243
Medium strength threadlocker that fills all the gap between the engaging threads and solidifies to unitize them, thereby
Preventing self-loosening
Sealing against corrosion
Results
Correct clamp load is maintained
Easy and consistent
disassemblyProper gearbox reliability ensured