In the assembly process, the quality of the bearing material can also be checked to identify the quality of the bearing. When the inner ring of the bearing is assembled on the shaft, if the bearing material is unqualified under normal operation, the deformation of the bracket or the play will be changed due to the deformation of the inner ring, which makes the spherical roller bearing inflexible or The rolling elements fall off and the like. In addition, the hardness value of the bearing is 60 to 65 HRC, which is unacceptable above or below this value. When testing the bearing hardness, the checkpoint should be selected on the side of the inner or outer ring to avoid damage to the bearing. During the test, the outer ring and the inner ring of the bearing can be 锉 (or sawed with a hacksaw blade with a force of about 5N). If the sound is “squeaky, slightly” and there is no swarf, only stay. The inconspicuous 锉 (or saw) marks are of sufficient hardness. Anything that can be smashed (or sawed) at the end of the swarf indicates that the hardness of the material does not meet the requirements. In addition, before the hardness test, it should be negotiated with the supplier first. When the supplier indicates that the “hardness meets the standard requirements, if it does not meet the requirements, it can be returned”.

1. The installation position of the spherical roller bearing is incorrect, which will cause a large axial end force of the ball end face and the inner seat ring of the bearing seat and the outer race block, causing the bearing to overheat.

2.Second, the bearings used are best to use the specified accuracy level of the bearing.

3.Third, the use of the bearing spindle bending or the hole of the box is different, causing heat to solve the problem is to repair the spindle

4.Fourth, the bearing belt is too tight to cause heat to solve the problem is to adjust the belt to make the elastic appropriate.

5. The solution to the problem of heat generation caused by poor lubrication is to select the lubrication information of the specified grade and clean it properly.

6.Sixth, the assembly method is low, resulting in heat is the solution is to improve the quality of assembly.

7. The solution to the heat generated by the inner ring of the rolling bearing is to replace the bearing and related wear parts to correct the balance hole diameter of the impeller and verify the static balance value.

Eight, the axial force is too large to cause heat to solve the problem is to clean, adjust the sealing ring gap requirements

Nine, the solution to the failure of the rolling bearing damage is to replace the bearing. When we use spherical roller bearings, if we find that the temperature is very high, we will stop the operation of the equipment, find out the cause, and deal with the solution provided above, but it may be due to the heat of the bearing. The reasons are different, so the solution is different, so it is still necessary to treat the specific situation and complete it with the help of technicians.