The solution to bearing noise in CNC vertical lathes has some similarities with the solutions to general bearing noise problems, but the specific circumstances of special applications such as CNC vertical lathes also need to be considered. Here are some suggestions:

1. Lubrication: Ensure that the CNC vertical lathe bearings are in good lubrication condition, select appropriate lubricants, and pay attention to the type and amount of grease or oil. CNC vertical lathes usually work under high-speed operating conditions, so special attention should be paid to lubrication performance and high temperature resistance.

2. Bearing replacement: Regularly check the wear of CNC vertical lathe bearings. If any damaged or severely worn bearings are found, replace them in time. Choose bearings that meet high speed and high load requirements.

3. Vibration control: CNC vertical lathes vibrate greatly when running at high speed. Therefore, the vibration must be controlled by designing the structure, strengthening the rigidity of the machine tool, and using shock absorbing devices to reduce bearing vibration and noise.

4. Bearing preload: CNC vertical lathes usually have high accuracy requirements, and the bearing preload must be adjusted appropriately to avoid problems caused by too large or too small preload.

5. Processing quality: The processing quality of CNC vertical lathes has an important impact on bearing noise, ensuring the processing accuracy of bearing seats and bearing holes, and reducing fit clearance deviations.

6. Sound insulation measures: Take sound insulation measures around CNC vertical lathe equipment, such as sound insulation covers, sound insulation pads, etc., to reduce the spread of noise.

7. Regular inspection and maintenance: CNC vertical lathes carry out regular equipment inspection and maintenance to ensure the normal operation of each component, and to detect and solve problems in a timely manner to reduce noise.

8. Process optimization: Optimize the process parameters of CNC vertical lathes to avoid unnecessary impacts and vibrations and help reduce noise.

9. Load control: Control the load of the CNC vertical lathe to avoid overload operation and reduce bearing wear and noise.

When dealing with the noise problem of CNC vertical lathe bearings, multiple factors such as equipment characteristics, process parameters, and working environment must be comprehensively considered to ensure the effectiveness of the solution.