The temperature rise of the guide bearing of CNC vertical lathe may be caused by many factors. Here are some possible reasons:

The contact points on the ceramic tile surface of the CNC vertical lathe are small and the contact surface is insufficient, which does not meet the equipment specification requirements, resulting in poor lubrication and increased friction, thereby causing temperature rise.

The increase in the bearing clearance of the CNC vertical lathe may cause the lubricating oil to be less likely to form an oil wedge when entering the bearing pad surface, further affecting the lubrication effect and causing the bearing temperature to rise.

Poor operation of the CNC vertical lathe's lubrication system can also affect bearing temperature. For example, poor circulation of lubricating oil, insufficient oil supply, or improper selection of lubrication methods may prevent the bearing from being fully lubricated, causing the temperature to rise.

Vibration, shock and overload during the operation of CNC vertical lathe may also have adverse effects on the bearings, causing their temperature to rise.

In order to solve this problem, CNC vertical lathes need to comprehensively consider the above factors and take corresponding measures. For example, optimize the design of bearings and shaft tiles, adjust bearing clearances, improve lubrication conditions, ensure the normal operation of the CNC vertical lathe lubrication system, and reasonably control the operating status of machine tools, etc. At the same time, regular inspection and maintenance of CNC vertical lathe bearings to promptly discover and deal with potential problems is also an effective means to prevent bearing temperature rise.

Please note that different models of CNC vertical lathes and different working conditions may cause different reasons for the temperature rise of the guide bearings. Therefore, in actual operation, CNC vertical lathes should be analyzed and processed according to specific conditions. If the problem persists or cannot be solved, it is recommended to contact professional technicians or the manufacturer for further consultation and repair.