In order to ensure that the electric spindle bearing can be used for a long time under good conditions, it is necessary to check and diagnose the bearing. (1) Inspection method during operation: judge according to the operation sound, vibration, temperature inspection of the bearing, the characteristic inspection of the grease, the replenishment or replacement time of the lubricating fluid. (2) Bearing appearance inspection: Fully observe the replaced bearings of the equipment, check the condition of the dovetail guide rail surface and whether it is damaged, and whether it can be used again. The general diagnosis and management process of electric spindle bearings is as follows: 1. Troubleshooting Check the operation of the bearings, including the noise, vibration, temperature, and lubrication of the bearings. 2. Bearing noise Use a sound detector to check the size and tone of the turning sound of the electric spindle bearing in operation. If the bearing is slightly damaged such as separation, there will be abnormal and irregular sounds, which can be distinguished with a sound detector. 3. Bearing vibration During the operation of the equipment, according to the vibration of the motor bearing, it can be known whether the bearing is in an abnormal state. A special vibration measuring device (operating frequency resolver, etc.) can measure the size of the vibration, and the details of the abnormality can be deduced from the frequency distribution. Since the measured values ​​are different due to the service conditions of the bearings or the installation position of the sensor, etc., it is necessary to analyze and compare the measured values ​​of each device in advance to clarify the judgment standard. It must be emphasized that in actual operation, abnormalities can be expected from the vibration symptoms of the running electric spindle bearing. Only when the torque is accurate can the rotation be stable! 37 years of focus on the research and development, production, manufacturing and sales of electric spindle bearings! (/gydzzz.html)
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