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Bearing is an important component in contemporary mechanical equipment. Its main function is to support the Premature Bearing mechanical rotating body, reduce the friction Premature Bearing coefficient during its movement, and ensure its rotation accuracy.
With the increasing demand for bearings, the premature failure and short service life of bearings perplex every mechanical enthusiast. Today I want to share with you the methods and skills to prolong the service life of bearings.
What are the reasons for premature bearing failure? How to improve the service life of bearings?
The number of revolutions or hours that a bearing experiences before Premature Bearing pitting under a certain load is called bearing life. For bearings within this service life, preliminary fatigue damage shall occur on any bearing ring or rolling element.
However, in our daily practical use, it can be clearly observed that the Premature Bearing actual life of bearings with consistent appearance under the same working conditions is very different. What causes this? The editor summarizes the following points:
1、 Improper installation (about 16%)
1. The force is too strong during installation, and knocking the bearing with a hammer will cause great damage to the bearing; It is also the main cause of deformation.
2. The bearing clearance is too small due to installation deviation or not installed in the bearing position. The inner and outer rings are not in the Premature Bearing same rotation center, resulting in non concentricity.
Suggestion: select appropriate or Premature Bearing professional bearing installation tools, and use special instruments to test after installation.
Pollution can also lead to premature bearing damage. Pollution refers to the entry of dust and metal chips into the bearing. The main reasons include: opening the bearing package too early before use, resulting in pollution;
The working environment is not clean during installation, resulting in pollution; The working environment of the bearing is not clean and the working medium is polluted.
Suggestion: do not unpack the bearing before use; During installation, keep the installation environment clean and clean the bearings to be used; Sealing device for reinforced bearing.
3、 Poor lubrication (about 50%)
According to the investigation, poor lubrication is one of the main reasons for premature bearing damage. Including failure to fill lubricant or lubricating oil in time; Lubricant or lubricating oil is not filled in place; Improper selection of lubricant or lubricating oil; Incorrect lubrication method, etc.
Suggestion: select the correct lubricant or lubricating oil and use the correct lubrication filling method.
4、 Fatigue (about 34%)
Fatigue failure is a common way of bearing damage. The common causes of fatigue failure may be: long-term overload operation of bearing; Failure to repair in time; Improper maintenance; Equipment aging, etc.
Suggestion: select the appropriate bearing type and replace the fatigue bearing regularly and timely.
Quenching the surface layer of parts by means of solid-state phase transformation and rapid heating is called surface heat treatment, commonly known as surface quenching. Including flame heating quenching, high (medium) frequency induction heating quenching, laser heating or electron beam heating quenching, etc.
The characteristics of these methods are: local heating and quenching of the surface, small deformation of the workpiece; Fast heating speed and high production efficiency; The heating time is short, and the surface oxidation decarburization is very slight.
continuous vacuum dryer, which is developed from the characteristics of spray drying and freeze-drying. The working process is carried out in a low-temperature environment. The dry environment should maintain a low-temperature state.
First, the equipment itself should be equipped with high-performance cooling parts. Second, the heat dissipation performance of the equipment itself is better, which requires that the performance of the bearing must meet the requirements of low-temperature resistance and high heat dissipation.