What are the causes of fan bearing failure

release time：2018/6/28 14:00:07

According to incomplete statistics, the failure rate of the vibration abnormality of the fan of the cement plant is up to 58.6 %, and the operation of the fan will be unbalanced due to the

vibration. Among them, the improper adjustment of the bearing adapter sleeve will result in abnormal temperature rise and vibration of the bearing.

The large fan uses a spherical roller bearing that can be adjusted automatically. However, when the internal clearance of the bearing is insufficient, the internal rolling element of the

bearing is affected by the movement space, and its automatic centering function is affected, and the vibration value will increase. 

The internal clearance of the bearing decreases with the increase of the tightness of the fit, and the lubricating oil film cannot be formed.When the running clearance of the bearing

drops to zero due to the temperature rise, if the heat generated by the bearing operation is still greater than the heat dissipated, the bearing temperature will Climb quickly.

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