What measures are taken to prevent gear pitting?

Gear pitting occurs on the tooth surface, and measures to prevent pitting can include:
1. Improve the material tooth surface strength
2. Use reasonable lubrication to reduce contact stress
3. Within reasonable limits, increase the gear diameter and reduce contact stress
4. Within reasonable limits, use high viscosity oil lubrication to avoid thinner oil squeezing into fatigue cracks and accelerate crack propagation.

In my opinion, you can try the following
1. Improve the hardness of the tooth surface and reduce the surface roughness value;
2. Use large transformation coefficients within the permitted range to increase the comprehensive curvature radius;
3. Use lubricating oil with high viscosity;
4. Reduce dynamic load