With the rapid development of urban planning and construction, water-ring vacuum pumps are becoming increasingly common, and their advantages during operation are growing. To ensure optimal performance, let’s take a look at the solutions for bearing overheating in water-ring vacuum pumps.
During the operation of a water-ring vacuum pump, the condition of the bearings determines whether the equipment can function properly. Bearings may overheat due to external environmental factors or improper use, causing the temperature of the entire unit to rise gradually and potentially damaging the equipment. Therefore, any signs of bearing overheating must be addressed immediately. Excessive bearing preload can reduce or eliminate bearing clearance, leading to overheating.
Excessive vibration in the pump body or bearings of a water-ring vacuum pump can also cause the bearings to overheat. Inspect the pump body to identify the source of the vibration; once the vibration is eliminated, the bearing temperature will return to normal. Using too much or too little grease, using the wrong type of grease, using grease that has been in service for too long, or using contaminated grease can all cause the bearings to overheat. In such cases, check the grease type, consult the manufacturer regarding the appropriate amount, and adjust the grease to restore normal bearing temperature. When a valve plate cracks, the pressure on both sides of the impeller becomes unbalanced, causing the rotor to generate axial force. This increases the load on the bearings, and prolonged operation will cause the bearing temperature to rise. In this case, the valve plate should be replaced promptly.

If the packing at the shaft end is damaged or the seal water passage is blocked, air will be drawn into the pump through these gaps, impairing the pump’s suction and discharge performance. If the seal fails on only one side, pressure imbalance will occur on both sides of the impeller, generating an axial force on the rotor that increases the bearing load and consequently raises the bearing temperature. Damage to the bearings of a water-ring vacuum pump can also cause overheating. Therefore, it is essential to operate this equipment with great care; any severely damaged components must be replaced immediately upon discovery. Of course, to prevent such issues, regular maintenance is essential. Proper maintenance can, to a certain extent, help extend the service life of the equipment.
The above outlines solutions for bearing overheating in water-ring vacuum pumps. You can select the appropriate method based on your specific operational requirements to avoid unnecessary losses caused by improper operation. If you have any other questions, please visit our website, where we regularly update our articles. We hope this information is helpful to you.