Fault detection and elimination method for deep groove ball bearing
Release date:2018-05-31 17:54:51
The inner clearance of the bearing is too small or the precision of the design and manufacture of the machine parts is not good. It is the main cause of the high running temperature of the deep groove ball bearing, which is convenient for the installation of the fan equipment; the repair and maintenance. Generally, the bearings with the bearing seat of the inner ring of the bearing cone bore are generally adopted in the design, but it is also easy to ask for the negligence of the installation procedure. In particular, the withering of the appropriate gap.
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Fault detection and troubleshooting for deep groove ball bearings:
(1) inherent noise:
The sound of the raceway and various bearings and rolling frictions (cylindrical roller bearings) is the inherent sound of the rolling bearing. The sound of the raceway is produced by the elastic characteristics of the rolling body and the raceway. When the deep groove ball bearing rotates, the rolling body rolls on the raceway.
The abnormal sound of rolling friction can produce abnormal sound of metal friction such as "squish, squish" and so on. It will not make such sound when smooth and good. So it is not a problem in ordinary condition. As long as the noise is increased, it is necessary to pay attention to the fault detection and elimination method and bearing load of the.TIMKEN bearing and deep groove ball bearing. Nature
(2) noise related to the bearing manufacturing: This includes the stand noise and the tremolo, the stick noise is mainly in the ball bearing and the bearing. When the deep groove ball bearing is rotated, the vibration of the stick and the collision between the stick and the rolling body will make a sound.
This kind of sound is periodic, and the vibrato (all kinds of bearings) is the sound of a certain frequency. It is caused by the vibration caused by the larger waviness on the raceway. This phenomenon is the most common problem, and we need to pay more attention to it later.
(3) the noise caused by improper use: all kinds of bearings exist. When the surface of the groove of the deep groove ball bearing raceway or the surface of the rolling body is bruised, pits, and rust, it will produce a certain period of noise and vibration. When the bearing is invaded by dust in operation, it will produce dirt noise. The noise is nonperiodic and also accompanied by vibration. Its size is not fixed, sometimes it is not.
(4) when processing, remove the tight sleeve, re adjust the tightness of the shaft and inner ring, replace the clearance after bearing 0.10mm. The fan is reinstalled and the vibration value and operating temperature of the bearing are restored to normal.
The inner clearance of the bearing is too small. The running temperature rises rapidly: the bearing inner ring conical hole and the tight set are too loose, and the bearing is easy to be loosened in the short time due to the loosening of the matching surface. Fault detection and troubleshooting for TIMKEN / deep groove ball bearings and bearing load properties
As for large bearings, sometimes in order to avoid the difficulty of loading and unloading, there is also a way to match the clearance of rings with rotational loads. In this case, the shaft must be made of hard material, carefully machined on the surface and sufficient lubricant to prevent the damage caused by skidding to the maximum.
