When it comes to centrifugal fans, we know that they primarily rely on the rotation of bearings to drive the fan’s rotation, thereby achieving the compression and transportation of air to meet the ventilation needs of places such as factories and buildings. However, an issue worth paying attention to is whether the insufficient performance of the bearings will have a negative impact on the overall working efficiency of the centrifugal fan. Next, we will introduce the causes of high-temperature phenomena in centrifugal fan bearings and the corresponding solutions.

Firstly, the excessive temperature of centrifugal fan bearings may be caused by improper use of lubricating oil. In this case, we need to carefully check whether the oiling method is correct. If the lubricating oil is not added regularly according to the specified requirements, the bearings will not be properly lubricated, which may lead to an increase in temperature. Moreover, even if the oiling operation is carried out, if the oil quantity is excessive, it will create greater resistance during the operation of the bearings, thereby causing the temperature to continue to rise. Therefore, when adding lubricating oil, it is essential to strictly follow the operating specifications to ensure that the oil quantity is appropriate and that oiling is done regularly.

Secondly, the absence of cooling water or insufficient flow in the centrifugal fan can also cause the bearing temperature to be too high. This is because, in such cases, the bearings cannot be effectively cooled and their temperature will inevitably rise continuously. Therefore, before the fan is started, it is necessary to carefully check whether the cooling water valve is open, and to confirm whether there is a normal supply of cooling water and whether the flow rate is sufficient. If problems with the cooling water are found, such as insufficient cooling water or low flow rate, it is necessary to add cooling water or increase the flow rate in a timely manner to ensure that the bearings are properly cooled and maintained at an appropriate working temperature.

Finally, abnormalities in the bearings themselves may also be the cause of the high temperature. When abnormalities are detected in the bearings, they need to be professionally inspected. Once the problem is identified, corresponding repair measures should be taken immediately to repair or replace the damaged parts in a timely manner. This ensures that the bearings can return to normal working conditions, avoiding a decrease in the working efficiency of the centrifugal fan and other more serious failures due to bearing abnormalities.