How to detect the performance and condition of deep groove ball bearings?

Testing the performance and condition of deep groove ball bearings usually requires a combination of methods to fully evaluate their operating conditions and detect potential faults in advance. Vibration analysis is one of the most common detection methods. By installing a vibration sensor, the vibration frequency and amplitude generated by the bearing during operation can be monitored in real time. Each bearing has its own specific operating frequency. When abnormal vibration occurs, it usually means that there is a problem with the bearing, such as rolling element wear, cage deformation or poor alignment. By analyzing the vibration signal, the type of fault can be identified in time to avoid equipment downtime or more serious damage due to the fault.
Temperature monitoring is another effective detection method, especially for high-speed bearings. The bearing should maintain a certain temperature during normal operation. If the temperature of the bearing is too high, it may be a sign of insufficient lubrication, overload or bearing damage. Real-time monitoring of bearing temperature through temperature sensors can help engineers detect problems in time and prevent further damage to the bearing by stopping or adjusting operations. Excessive temperature may also affect the material properties of the bearing, causing its performance to deteriorate. Therefore, timely detection of temperature changes is essential to extend the life of the bearing.
Sound detection is also a common detection method. The sound made by the bearing during operation can reflect its status. Under normal circumstances, the bearing should make a uniform and smooth running sound. If you hear abnormal noises, such as hissing, banging or abnormal sounds, this usually indicates that there is a problem inside the bearing. Excessive noise may be caused by rolling element damage, cage damage or contaminants entering the bearing. By using acoustic sensors or manual listening, preliminary fault diagnosis can be effectively carried out.
Lubricant inspection also plays a vital role in bearing maintenance. The state of the lubricant can reflect the working condition of the bearing. Regularly checking the color, viscosity, impurity content and the presence of metal particles in the lubricant is the key to preventing bearing damage. If the lubricant is deteriorating, too dirty or there are too many metal particles, it may mean that the bearing has been excessively worn or damaged. Timely replacement or addition of lubricants helps to keep the bearings running properly.
Temperature rise test is another important means to evaluate the operating status of bearings. During the operation of the equipment, by measuring the changes in the bearing temperature rise, its working load and lubrication status can be further understood. Generally speaking, the temperature rise of the bearing under normal load should be stable and controllable. If the temperature rise is too fast, it may be due to excessive load or insufficient lubrication. In the event of abnormal temperature rise, the lubrication system should be checked immediately or the bearing load should be reduced.
Clearance measurement is a simple but effective inspection method. As the bearing is used for a longer time, the clearance between the inner and outer rings of the bearing will gradually increase, which will affect the working accuracy and stability of the bearing. By regularly measuring the clearance of the bearing, early signs of bearing wear can be detected in time, so that preventive maintenance can be carried out to avoid failures.