Common challenges related to
threaded fasteners in a gearbox

Apparent causes behind these challenges
Vibrations
Thermal fluctuations
Tough operating conditions
Root Cause

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


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