The jaw crusher is a commonly used crusher device. For the jaw crusher, the bearing is one of the * important parts of the machine. Once the bearing is damaged, it will cause the equipment to s. In the process of stone production, the abnormal temperature rise of the bearing is one of the common faults. The following is the reason for the abnormal temperature rise of the bearing:

1, bearing wear
Serious wear of the bearing will cause changes in the dimensions of the outer ring, inner ring, cage, rolling element, etc. of the bearing, which may also increase the clearance of the bearing fit, reduce the running accuracy of the bearing, and thus increase the temperature of the bearing and increase the noise. In severe cases, it may cause the bearing to heat up, burn out, or even cause the bearing to bend.

2, poor bearing quality leads to small clearance
The bearing clearance is too small and does not reach the specified value. During the operation of the bearing, the bearing will be heated, the temperature will rise, and an abnormality will occur.

3. The axial positioning of the bearing is incorrect.
The axial positioning of the bearing is incorrect, the bearing gland or the labyrinth ring is not installed in place, causing the eccentric axial side to sway during operation, resulting in a decrease in the bearing clearance, which in turn causes the bearing to heat up.

4. The machining error of the moving bearing hole exceeds the standard value.
If the machining error of the bearing hole exceeds the allowable value of the design, the coaxiality error of the outer ring of the bearing will be too large, which will cause the bearing clearance to become smaller and the bearing to heat up.

5, the spindle machining problem
The journal error on both sides of the bearing spindle exceeds the allowable value of the design, resulting in excessive coaxiality error of the inner ring of the bearing, which causes the bearing clearance to become smaller and the bearing to heat up.

6, the oil hole is blocked, the amount of oil injection is too little or too much
If the crusher has oil hole blockage and too much or too little fuel, the bearing temperature will rise and an abnormality will occur. Therefore, you should read the instructions carefully, strictly follow the instructions, and regularly refuel.

7, parts processing is not accurate
If the machining accuracy of the bearing seat does not meet the standard requirements, such as the tolerance of the bearing housing hole, the looseness will occur due to excessive assembly. If the bearing is too small, the bearing clearance will be too small, which will cause the bearing to heat up.

8, improper selection of lubricants
When selecting the lubricating oil, refer to the operating temperature, lubrication time, speed index and other factors. When the viscosity of the lubricant is not suitable, it will make it difficult to form an oil film. Therefore, the heat in the bearing cannot be taken away, which causes the bearing to heat up.