Composite bearings are an important part of contemporary machinery and equipment, and the amount is amazing. Taking a car as an example, a car generally needs to use 100 to 150 composite bearings to ensure normal driving.

The main function of the composite bearing is to support the mechanical rotating body, reduce the friction coefficient during the movement, and at the same time ensure its rotation accuracy. In the course of use, premature failure of composite bearings, long life and other problems plague workers in each industry. Today, I will share some tips and tricks for extending the service life of composite bearings.

First, poor lubrication

According to the survey, poor lubrication is one of the most important causes of premature failure of composite bearings. 50% of premature failures are caused by poor lubrication, including: no lubrication products are added in time, lubrication products The selection is incorrect or not filled, the lubrication method is incorrect, and so on.

The recommendation is to select the correct lubrication product and lubricate it in the correct way before lubricating the composite bearing.

Second, fatigue damage

Fatigue damage is another common method of damage to composite bearings, and 34% of them are caused by premature failure. The main reasons for fatigue of composite bearings are: long-term overload operation of composite bearings, failure of composite bearings, timely maintenance or improper maintenance, equipment aging, etc. The advice here is to select the appropriate composite bearing type, periodically check and replace the fatigue composite bearing in time.

Third, improper installation

The composite bearing life reduction due to improper installation accounts for about 16%. Generally speaking, it mainly includes the following two specific reasons: First, the installation is too strong, for example, some workers will hit the composite bearing with a hammer. The damage to the composite bearing is actually very large and it is easy to cause deformation. Secondly, there is a deviation in the installation process, and it is not installed in the composite bearing position, resulting in the clearance of the composite bearing is too small, or the inner and outer rings are not concentric.

In this regard, the advice given is: select the appropriate or professional composite bearing installation tools before installation. Don't forget to use the special instrument to detect after installation.

Fourth, pollution

The meaning of pollution is that dust, metal scrap and other impurities enter the inside of the composite bearing, which is also a cause of premature failure of the composite bearing, which accounts for about 14% of all causes. Opening the package prematurely before use will cause internal pollution. At the same time, the working environment will be dirty during installation, which will cause contamination of the composite bearing.

In response to this phenomenon, the advice is: the composite bearing should not be unpacked before use; at the same time, the installation environment should be kept clean during installation, and the composite bearing used should be cleaned regularly to prevent pollution; Sealing device for bearings.