The temperature of the bearing can generally be inferred from the temperature of the outer surface of the bearing. It is more appropriate if the oil hole can be used to directly measure the temperature of the outer ring of the bearing. Generally, the temperature of crossed roller bearings slowly rises as the bearing runs, and reaches a stable state after 1-2 hours. The normal temperature of the bearing varies with the heat capacity, heat dissipation, speed, and load of the machine. If the lubrication and installation parts are proper, the bearing temperature will rise sharply and abnormally high temperature will occur. At this time, the operation must be stopped and necessary precautions must be taken.
The use of thermal sensors can monitor the operating temperature of the bearing at any time, and automatically alarm or stop when the temperature exceeds the specified value to prevent combustion shaft accidents. The high temperature often indicates that the crossed roller bearing has been in an abnormal condition. High temperature is also harmful to the lubricant of the bearing. Sometimes the overheating of the bearing can be attributed to the lubricant of the bearing. Long-term continuous rotation of the bearing at a temperature exceeding 125°C will reduce the life of the bearing. The causes of high-temperature bearings include insufficient lubrication or excessive lubrication, impurities in the lubricant, excessive load, bearing ring damage, insufficient clearance, and high friction caused by oil seals.
Therefore, it is necessary to continuously monitor the bearing temperature, whether it is to measure the bearing itself or other important parts. If the operating conditions remain unchanged, any temperature change can indicate that the cross roller bearing has failed.
The periodic measurement of the temperature of the cross roller bearing can be done with the help of a thermometer, such as an skf digital thermometer, which can accurately measure the bearing temperature and display it in units of °C or Fahrenheit. The important bearing means that when it is damaged, it will cause the shutdown of the equipment, so this type of bearing should be equipped with a temperature detector.
Under normal circumstances, YRT rotary table bearings will have a natural temperature rise after lubrication or relubrication and last for one or two days.
