Bearing corrosion is very common and it will reduce the service life of the bearing. So everyone must pay attention to this problem in their daily work.

The determination of the causes and prevention methods of high temperature bearing corrosion first depends on what causes the high temperature cylindrical roller bearing corrosion, which is generally divided into external and internal causes. To sum up, there are mainly:

1. Metal surface finish (battery corrosion due to oxygen concentration difference).

2. The chemical composition and structure of the metal material itself.

3. The composition and pH value of the solution in contact with the metal surface.

4. Ambient temperature and humidity.

5. Various environmental media in contact with metal surfaces.

6. In addition, human sweat is also the cause of bearing corrosion, and its pH value is 5~6. Therefore, in order to prevent corrosion caused by hand sweat, installation and production personnel should wear gloves and do not touch high-temperature bearings with their hands.

Apply anti-rust oil to prevent high-temperature bearings from rusting:

1. Soaking method: Some small high-temperature bearings are immersed in anti-rust grease, and the thickness of the oil film can be achieved by controlling the temperature or viscosity of the anti-rust grease. A method of adhering a layer of anti-rust grease to its surface.

2. Brushing method: When brushing, pay attention to evenly apply it on the surface of the high-temperature bearing, do not produce accumulation, and also pay attention to prevent leakage of coating.

3. Spraying method: Some large-scale anti-rust objects are not suitable for oiling by immersion method. Generally, filter compressed air with a pressure of about 0.7Mpa is used to spray in clean air. The spray method is suitable for solvent-diluted anti-rust oil or thin-layer anti-rust oil. This method must adopt perfect fire prevention and labor protection measures.

When the hk bearing rotates under load, the raceway surface or rolling element surface of the inner and outer rings will peel off like fish scales due to rolling fatigue.

Reasons for sholesale bearing peeling damage:

1. The load is too large

2. Poor installation (non-linearity), moment load, foreign matter intrusion, and water ingress.

3. Poor lubrication, inappropriate lubricant, inappropriate bearing clearance.

4. The accuracy of the bearing box is not good, the rigidity of the bearing box is not uniform, and the deflection of the shaft is large

5. Development caused by rust, erosion points, abrasions and indentations (surface deformation phenomena).

What measures to take to solve the custom bearing peeling damage:

1. Check the size of the load and study the bearings used again

2. Improve the installation method, improve the sealing device, and prevent rust during shutdown.

3. Use lubricant with appropriate viscosity and improve lubrication method.

4. Check the accuracy of the shaft and bearing box

5. Check the clearance.