To detect the temperature of CNC lathe bearings, you can use the following methods:

1. Use an infrared thermometer: The CNC lathe infrared thermometer is a commonly used non-contact temperature measurement tool that can quickly and accurately detect bearing temperature. When in use, the infrared thermometer needs to be aimed at the external surface of the bearing, maintaining a certain distance and angle, and avoiding being too close to other heat sources to avoid interfering with the measurement results.

2. Use temperature sensors: CNC lathe temperature sensors, such as thermocouples and thermistors, can be installed at appropriate locations near the CNC lathe bearings. When installing the sensor, make sure it is in close contact with the bearings and use appropriate fixtures to secure the sensor. By connecting the sensor to a thermometer or control system, the bearing temperature can be continuously monitored and recorded and analyzed in real time.

3. Observe the status of the grease: The increase in CNC lathe bearing temperature is often related to poor lubrication. By observing the condition of the grease, you can initially determine whether the bearing temperature is normal. If the grease appears abnormal, such as deterioration, solidification or spillage, it may mean that the bearing temperature is too high. At this time, the bearings and lubrication system need to be checked in time, and corresponding repair or replacement measures must be taken.

Please note that each method of CNC lathe has its own characteristics and scope of application, and the appropriate method should be selected for temperature detection based on the actual situation. At the same time, in order to ensure the accuracy of measurement results, measurement tools should be calibrated and maintained regularly.