2019- 01- 20
Why is the bearing damaged prematurely? How to improve the life of bearings?
Bearings are an important part of machinery and equipment nowadays, and the amount is amazing. Taking a car as an example, a car generally needs 100 to 150 bearings to ensure normal driving.
The main function of the bearing is to support the mechanical rotating body, reducing the friction coefficient during the movement, while ensuring its rotation accuracy. In the course of use, premature bearing damage and short life spans plague workers in every industry. Today Debot bearing came to share some tips and tricks for extending the life of the bearing.
First, The scarcity of lubrication
According to the survey, The scarcity of lubrication is one of the most important causes of premature bearing damage. In the case of premature failure, 50% is caused by poor lubrication. Specifically, it includes: no lubrication products are added in time, and lubrication products are selected. Type error or unfilled, incorrect lubrication, etc.
In this regard , Debot's advice is to choose the right lubrication product and lubricate it in the right way before lubricating the bearing.
Second, Fatigue damage
Fatigue damage is another common form of damage to bearings, and 34% of them are caused by premature failure . The main reasons for bearing fatigue are: long-term overload operation of the bearing, failure of the bearing, timely maintenance or improper maintenance, equipment aging and so on.
Here, Debot 's advice is to select the appropriate bearing type, periodically check and replace the fatigue bearing in time.
Third, Improper installation
The bearing life reduction caused by improper installation is 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 bearing with a hammer, this pair The damage of the 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 bearing position, which causes the bearing clearance to be too small, or the inner and outer rings are not concentric.
In this regard , Debot's advice is: select the appropriate or professional bearing installation tools before installation, do not forget to use the dedicated instrument to detect after installation.
Fourth, Pollution
The meaning of pollution is that dust, metal chips and other impurities enter the inside of the bearing, which is also a non-negligible cause of premature bearing damage, accounting 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 bearing pollution.
In response to this phenomenon, Debot's suggestion is: it is best not to unpack the bearing before use; at the same time, keep the installation environment clean during installation, and the bearings used should be cleaned regularly to prevent pollution; Enhance the bearing’s sealing device.
