The main reasons for damage during gear processing and use
When the friction pair is in operation, one reason is that the lubricating oil cannot establish an oil film due to low viscosity, low speed, and high load;
The second reason is that the circumferential speed is too high and the load is too heavy, resulting in sliding and rolling, poor quality of lubricating oil, inappropriate viscosity, and varying degrees of adhesive wear caused by lack of oil;
The third is the wear of particles caused by the mixing of external dust and other particles, as well as internal debris, gum, and other impurities into the lubrication system;
Fourthly, under the repeated action of cyclic contact stress, gears will experience fatigue wear, resulting in pitting, peeling, and fracture of surface materials;
Fifthly, the mixing of water, metal particles, chemical pollutants, as well as the chemical reactions of lubricating oil and the participation of oxygen in the lubrication system can cause corrosion and wear.

In short, the damage to gears in Shijiazhuang is caused by sliding, rolling, impact, and the interaction between lubricating materials and friction pairs during operation, resulting in scratches, pitting, fractures, and other damages.