Maintenance and inspection of rolling bearings
Rolling bearings are essential components in rotary machinery, and the quality of their work directly affects the performance of the machinery. When the bearing fails, excessive bearing vibration and noise will be generated, accompanied by a decrease in production accuracy and increased maintenance costs. The maintenance and inspection of rolling bearings is designed to reduce the occurrence of such events.
The maintenance process of the bearing consists mainly of the following aspects:
1.Regularly check the rust and other dirt on the outside of the bearing and its housing, and check the running status of the bearing.
2. Check the fastening of the bearing and housing to ensure that they are securely connected.
3.Check the lubrication status of the bearing, measure the oil film thickness and clean the debris.
4. When the bearing is subjected to inertial load, it is necessary to pay attention to the loosening of the bearing fixed nut.
5. When a known bearing is replaced, the bearing used for the step-by-step exchange must be marked for later use.
Bearing Stopping Inspection
In order to ensure that the bearing works at optimum performance, it is necessary to conduct inspections at appropriate intervals. The following is an overview of the necessary inspection items:
1. Measure the bearing clearance to determine whether the clearance is within the normal range.
2. Measure the axial and radial bearing load. Remove the load when the load is found to be abnormal.
3. Measure the temperature of the bearing to check whether the temperature is abnormal.
4. Measure the roundness and concentricity of the bearing and its inner and outer races.
5. Measure the shape, size and axial shift of the rolling elements.
6. Check for signs of fatigue on the rolling elements and raceways.
7. Replace the worn and damaged bearings.
Conclusion
Regular maintenance and periodic inspection of the rolling bearings in rotary machinery are essential for reliable and efficient operation. Good maintenance practices can improve the performance of the machinery and reduce the risk of running failures. By strictly following the above maintenance and inspection procedures, it is possible to reduce unplanned downtime and keep the machinery in the best working condition.
