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How to improve the service life of bearing

Bearing is an important part in contemporary mechanical equipment. Its main function is to support the mechanical rotating body, reduce the friction coefficient during its movement, and ensure its rotation accuracy. With the increasing demand for bearings, the premature damage of bearings, and the problem of short life span, we are plagued by every mechanical enthusiast.

Under a certain load, the number of turns or hours experienced by the bearing before the occurrence of point erosion is called the bearing life. Bearing within this life period, initial fatigue damage shall occur on any bearing ring or rolling body. However, in our daily practical use, it can be clearly observed that bearing with the same appearance under the same working conditions, the actual life is very different. What causes this?

Inappropriate installation(approximately 16 per cent)

1, the strength of the installation is too strong, in which hitting the bearing with a hammer is the greatest damage to the bearing; It is also the main cause of deformation.

2, installation deviation or not installed to the bearing position, resulting in too small bearing clearance. The inner and outer circles are not in the same center of rotation, causing different hearts.

Recommendation: Select suitable or professional tools for bearing installation and test with special equipment after installation.

II. Pollution(about 14 %)

Pollution can also lead to premature damage to the bearing. Pollution refers to dust, metal chips, etc. entering the bearing interior. The main reasons include: opening the bearing packaging prematurely before use, causing pollution; The working environment is not clean at the time of installation, causing pollution; Bearing working environment is not clean, working medium pollution.

Recommendation: It is best not to unpack the bearings before use; Keep the installation environment clean during installation and clean the bearings to be used; Sealing device to enhance the bearing.

III. Poor lubrication(about 50 %)

According to the investigation, poor lubrication is one of the main causes of premature damage of bearings. Including delays in the filling of lubricants or lubricants; The lubricant or lubricant is not in place; Inappropriate selection of lubricants or lubricants; The lubrication method is not correct and so on.

Recommendation: Choose the right lubricant or lubricant and use the right lubrication method.

Fatigue(approximately 34 per cent)

Fatigue failure is a common form of damage to bearings. The common reasons for fatigue failure may be: long-term overload of bearings; Late maintenance; Inadequate maintenance; Equipment aging and so on.

Recommendation: Choose the proper type of bearing and replace the fatigue bearing regularly and in a timely manner.