1. Temperature control: Bearings of high-speed rotating equipment generate heat during operation. If the heat is not dissipated in time, the high temperature may lead to problems such as bearing wear and lubricating oil aging, which will ultimately affect the life span and reliability of the equipment. Bearing oil coolers help keep bearing temperatures within safe limits by transferring heat from the bearing to the cooling oil and then radiating the heat to the surrounding environment.

2. Heat Discharge: Heat generated by equipment such as generators in hydropower plants needs to be discharged in a timely manner to prevent the equipment from overheating. Bearing oil coolers can help transfer some of the heat to the cooling oil, which is then released into the air through radiators and other means to maintain the operating temperature of the equipment.

3. Lubrication and maintenance: Cooling oil can not only be used to dissipate heat, but can also act as a lubricant in bearings to reduce friction and wear. Proper oil temperature helps maintain lubrication performance and ensures proper equipment operation.

4. Preventing breakdowns: High bearing temperatures can lead to equipment failure and downtime, which can affect production. By using a bearing oil cooler, malfunctions caused by temperature problems can be effectively prevented and the reliability and stability of the equipment can be improved.

In hydropower plants, bearing oil coolers are often integrated with other monitoring and maintenance systems to monitor bearing temperatures in real time and take action when needed, such as adjusting the cooling oil flow rate or activating a back-up cooling system to ensure that the bearings remain within a safe operating temperature range.