Why does bearing grease harden? There can be a number of reasons why a bearing grease hardens. Recently, Baoxing lubricating oil has received a lot of oil problems about the harder and harder bearing grease. If the bearing grease hardens during use, the bearing will be blocked, resulting in poor lubrication of the system, increasing the frictional resistance of mechanical parts, and increasing the corresponding mechanical energy consumption. Next, Baoxing will systematically help you answer what is going on with the hardening of bearing grease.
1. Reasons for bearing grease to dry out:
Often, bearing grease hardens because of oil separation over time. Oil separation causes the base oil to detach from the grease, causing the grease to become less lubricating and dryer and harder.
Secondly, the large bearing with high speed will produce a large centrifugal force during the working process, and the grease will be subjected to centrifugal force or vibration for a long time, which will also aggravate the oil separation of the grease, resulting in hard grease.
Finally, overfilling of bearing grease will also cause the grease to harden, overfilling the grease will increase the temperature of the bearing during operation, and when the temperature reaches the grease dropping point, the base oil in the grease will precipitate, making the grease hard, so it is not as much grease as possible.
2. Hazards of bearing grease hardening:
As a result, the life of the bearing is greatly shortened, and it is prone to premature fatigue damage and failure.
Poor permeability: Hardened grease can become viscous, causing it to become less permeable. This makes it difficult for the grease to enter the friction surface inside the bearing, and cannot play an effective role in lubrication and protection, further increasing the wear and friction of the bearing.
Blockage and poor system lubrication: After the grease hardens, it may cause blockage, cause poor lubrication of the system, cause overheating of the machine, increase the frictional resistance of mechanical parts when lubricating, and increase the consumption of mechanical power.
3. How to avoid bearing grease hardening:
When using grease, the appropriate amount is good, not too much, not too little. Pay attention to seal and store the grease after it is taken to avoid contamination of the grease. When selecting grease, it is selected from the speed of the bearing, the operating temperature, whether the noise is reduced, the load, etc.
Baoxing lubricating oil has a professional technical team, rich experience in grease application, can quickly help customers solve oil problems, welcome to consult!