The temperature of the bearing can generally be estimated from the temperature outside the bearing chamber. It is more appropriate if the oil hole can be used to directly measure the temperature of the bearing outer ring. Usually, the temperature of the bearing begins to rise slowly as the bearing operates, and reaches a stable state after 1 to 2 hours. The normal temperature of bearings varies depending on the machine's heat capacity, heat dissipation, rotation speed and load. If the lubrication and installation are not appropriate, the bearing temperature will rise sharply and abnormally high temperatures will occur. At this time, the operation must be stopped and necessary preventive measures must be taken.
High temperatures often indicate that the bearing is in an abnormal condition. High temperatures are also harmful to bearing lubricants. Sometimes bearing overheating can be attributed to the bearing's lubricant. If the bearing rotates continuously for a long time at a temperature exceeding 125°C, the service life of the bearing will be reduced. Causes of high-temperature bearings include: insufficient or excessive lubrication, impurities in the lubricant, excessive load, bearing damage, insufficient clearance, high friction caused by oil seals, etc.
High temperatures often indicate that the bearing is in an abnormal condition. High temperatures are also harmful to bearing lubricants. Sometimes bearing overheating can be attributed to the bearing's lubricant. If the bearing rotates continuously for a long time at a temperature exceeding 125°C, the service life of the bearing will be reduced. Causes of high-temperature bearings include: insufficient or excessive lubrication, impurities in the lubricant, excessive load, bearing damage, insufficient clearance, high friction caused by oil seals, etc.
Therefore, continuous monitoring of bearing temperature is necessary, whether measuring the bearing itself or other important parts. If operating conditions remain unchanged, any temperature change may indicate a malfunction. Regular measurement of bearing temperature can be done with the help of a thermometer, such as the SKF digital thermometer, which can accurately measure bearing temperature and display it in °C or Fahrenheit units. The importance of bearings means that when they are damaged, it will cause the equipment to shut down. Therefore, it is best for such bearings to be equipped with temperature detectors. Under normal circumstances, bearings will have a natural temperature rise immediately after lubrication or relubrication that lasts for one or two days.