How to improve the service life of bearings

Bearings are an important component in contemporary mechanical equipment. Its main function is to support the mechanical rotating body, reduce the friction coefficient during its movement, and ensure its rotational accuracy. With the increasing demand for bearings, problems such as premature damage and short lifespan of bearings are troubling every mechanical enthusiast.

The number of revolutions or hours that a bearing experiences before pitting occurs under a certain load is called the bearing life. Bearings within this lifespan should experience initial fatigue damage on any of their bearing rings or rolling elements. However, in our daily practical use, it is evident that bearings with consistent appearance under the same working conditions have significantly different actual lifespans. What is the reason for this?

1、 Improper installation (approximately 16%)

1. During installation, excessive force was applied, and hitting the bearing with a hammer caused the greatest damage to the bearing; It is also the main cause of deformation.

2. Installation deviation or not installed in the bearing position, resulting in too small bearing clearance. The inner and outer rings are not at the same center of rotation, resulting in non concentricity.

Suggestion: Choose appropriate or professional bearing installation tools, and use specialized instruments for testing after installation.

2、 Pollution (approximately 14%)

Pollution can also cause premature damage to bearings, which refers to the entry of sand, dust, metal shavings, and other debris into the interior of the bearings. The main reasons include: opening the bearing packaging too early before use, causing pollution; Unclean working environment during installation, causing pollution; The working environment of bearings is not clean, and the working medium is contaminated.

Suggestion: It is best not to open the packaging of the bearings before use; Maintain a clean installation environment and clean the bearings to be used during installation; Enhance the sealing device of the bearing.

3、 Poor lubrication (approximately 50%)

According to the investigation, poor lubrication is one of the main reasons for premature bearing damage. Including failure to add lubricants or lubricating oil in a timely manner; Lubricants or lubricating oil not filled in place; Improper selection of lubricants or lubricants; Incorrect lubrication method, etc.

Suggestion: Choose the correct lubricant or oil and use the correct lubrication method.

4、 Fatigue (approximately 34%)

Fatigue failure is a common way of bearing damage. The common causes of fatigue failure may be: long-term overload operation of bearings; Failure to repair in a timely manner; Improper maintenance; Equipment aging, etc.

Suggestion: Choose the appropriate bearing type and replace fatigue bearings regularly and promptly.