The main factors causing premature damage of rolling bearings due to vibration

The main factors affecting the use of rolling bearings refer to whether the installation, adjustment, maintenance, and repair meet the technical requirements. According to the technical requirements for bearing installation, use, maintenance, and upkeep, monitor and inspect the load, speed, working temperature, vibration, noise, and lubrication conditions of the rolling bearings during operation. If any abnormalities are found, immediately identify the cause and make adjustments to restore them to normal. Installation conditions are one of the primary factors in the use of bearings. Improper installation of bearings often leads to changes in the stress state between various parts of the entire set of bearings. The bearing operates in an abnormal state and ends its service life prematurely. The internal factors mainly refer to the three major factors that determine the quality of bearings, namely structural design, manufacturing process, and material quality.

1、 Improper installation (approximately 16%)

1. Using brute force during installation and directly striking the tapered roller bearing with a hammer can cause significant damage to the bearing; It is the main cause of deformation.

2. Improper installation, deviation or failure to install in the bearing position, resulting in insufficient clearance of the tapered roller bearing. The inner and outer circles are not at the same center of rotation, resulting in a lack of concentricity.

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

2、 Poor lubrication (about 50%)

According to the investigation, poor lubrication is one of the main reasons for premature bearing damage. The main reasons include: failure to timely add lubricant or lubricating oil; Lubricant or lubricating oil not added properly; Improper selection of lubricants or lubricating oils; Incorrect lubrication method, etc.

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

3、 Pollution (about 14%)

Pollution can also cause premature damage to rolling bearings, which refers to the entry of dust, metal shavings, etc. into the interior of the bearing. The main reasons include: premature opening of the packaging of tapered roller bearings before use, causing contamination; The working environment during installation is not clean, causing pollution; The working environment of bearings is not clean, and the working medium is contaminated.

Suggestion: Do not unpack the bearing before use; Keep the installation environment clean during installation and clean the bearings to be used; Enhance the sealing device of the bearing.

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 bearings; Failure to repair in a timely manner; Improper maintenance; Equipment aging, etc.

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