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Three aspects of overhauling outer spherical bearing

2021-09-09

In case of failure in the application of outer spherical bearing, what should we start from? Let's take a look at the following:
1. Temperature of maintenance bearing:
Generally, the temperature of the outer spherical bearing increases slowly with the start of operation, and reaches a stable state after 1 to 2 hours. The normal temperature of the bearing varies with the heat capacity, heat dissipation, speed and load of the machine. If the lubrication and installation are not appropriate, the bearing temperature will rise sharply and abnormal high temperature will occur. At this time, the machine must be shut down and necessary preventive measures must be taken.
2. Lubricant for maintenance bearing:
Lubrication has an important impact on the fatigue life, friction, wear, temperature rise and vibration of the bearing. Without normal lubrication, the bearing can not work. The analysis of the causes of bearing damage shows that about 40% of bearing damage is related to poor lubrication, so good bearing lubrication is an effective measure to reduce bearing friction and wear.
3. Vibration of maintenance bearing:
The impact of bearing vibration on bearing failure is obvious. For example, peeling, indentation, corrosion, crack, wear, etc. will be reflected in bearing vibration detection. Therefore, the vibration can be measured by using special bearing vibration measurement devices (frequency analyzer and vibration instrument, etc.), and the specific situation of abnormal vibration can be inferred from frequency distribution, The measured values are different due to the service conditions of the bearing or the installation position of the sensor. Therefore, it is necessary to analyze and compare the measured values of each machine in advance to determine the judgment standard.

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