Fatigue pitting is common fault of planetary reducer. If the fatigue pitting is not found in time, it will cause large pieces of gears to peel off, resulting in gears being scrapped, and planetary reducers can no longer be used. So, why does the planetary reducer have fatigue pitting?
1. During the installation process of the reducer gear, the maintenance process is not strictly carried out, resulting in poor installation, causing partial contact of the tooth surface, and excessive load causing fatigue and pitting on the tooth surface;
2. The lubricating oil of the planetary reducer has expired or deteriorated, and the viscosity is too low or invalid, that the oil film cannot be formed between the tooth surfaces of the gears, and the direct contact between the teeth causes fatigue and pitting on the tooth surface;
3. The transmission bearing exceeds the limits or the clearance between bearing and bearing hole is too large, which causes the transmission bearing to vibrate too much and causes the load to increase, which causes the gear transmission load to increase, and it also causes fatigue pitting on tooth surface.
