There may be several reasons for the temperature rise of the guide bearing of the CNC vertical lathe:

1. Friction and wear: When the guide bearing of the CNC vertical lathe is in operation, friction will occur between the shaft and the bearing. Especially when the CNC vertical lathe is running at high speed or under heavy load, the heat generated by friction will cause the bearing to become overheated. Lift. In addition, prolonged use may also cause bearing wear, increase friction and further increase temperatures.

2. Poor lubrication: If the lubrication system of the CNC vertical lathe guide bearing works abnormally or there is insufficient lubricating oil, the bearing friction will increase, and the lubricating film on the surface of the CNC vertical lathe bearing cannot be formed or maintained, resulting in an increase in friction heat and a rise in bearing temperature.

3. Excessive load: If the CNC vertical lathe bears too much load during processing, the pressure on the bearing will increase, the friction will increase, and the temperature of the bearing may rise.

4. Bearing damage: If the CNC vertical lathe guide bearing itself is defective or damaged, such as damage to the internal bearing balls or rollers, it may cause uneven friction and additional heat generation, which in turn will cause the bearing temperature to rise.

5. Ambient temperature: Sometimes the ambient temperature will also affect the temperature rise of the CNC vertical lathe guide bearing. If the CNC vertical lathe is operated in a high-temperature environment, the temperature around the guide bearing will increase, which will also increase the operating temperature of the bearing.

In practical applications of CNC vertical lathes, it is necessary to timely inspect and maintain the guide bearings to ensure the normal operation of the CNC vertical lathe lubrication system, reasonable load distribution, and appropriate ambient temperature to reduce the temperature rise of the CNC vertical lathe guide bearings and ensure the safety of the CNC vertical lathe Proper operation and service life.