How much do you know about the causes of harmonic reducer bearing damage?

Harmonic reducer bearings will inevitably have various problems during use. In addition to their own quality problems, some unreasonable operations during use will also cause damage to it, which will affect the service life and cause harmonics. The wear and tear of the reducer fails, leading to other serious consequences.Guosenke has sorted out some common damage causes of harmonic reducer bearings during use, and I hope everyone can learn from them.

1. The cavity is not cleaned or the grease added is not clean, which increases the wear, vibration and noise of the bearing, and damages the bearing raceway, causing excessive temperature rise and burning the bearing.

2. Because the temperature rise of the motor body is too high, and the bearing is not replenished with grease in time, the bearing is short of oil or even burned.The mixed use of different greases can also cause damage to the bearing.

3. Improper bearing assembly, uneven knocking on the inner ring of the bearing during cold assembly will cause the shaft to be worn, resulting in the loss of interference between the inner ring of the bearing and the bearing or the reduction of the interference, and the phenomenon of running the inner ring. Uniform knocking causes the bearing chamber of the end cover to fit too loosely with the outer ring of the bearing and the phenomenon of running the outer ring occurs.

4. If the harmonic reducer does not run for a long time, the grease will deteriorate and the bearing will rust without timely maintenance.

5. Due to the axial misalignment of the stator and rotor cores or the lack of precision after re-machining the shaft, the inner and outer rings of the bearing are not on the same tangent plane, which causes the bearing to run 'not strong' and cause the temperature to rise and burn the bearing.

6. Due to the problem of the manufacturer, the clearance of the harmonic reducer bearing is too small or too large, the clearance of the bearing is too small, it will be too tight when rotating, and the clearance of the bearing is too large, which will cause abnormal noise and accelerate its damage .

7. Harmonic reducer bearings are affected by additional loads.

When using harmonic reducer bearings, pay attention to the above common damage causes, choose a reliable manufacturer, and assemble them in strict accordance with the manufacturer's assembly requirements, which can better solve these problems and prolong the service life.