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

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

4. Ambient temperature and humidity.

5. Various environmental media in contact with the metal surface.

6, another person’s sweat is also the cause of bearing corrosion, its pH is 5 ~ 6. Therefore, in order to prevent rust caused by hand sweat, the installation and production personnel should wear gloves, do not touch the bearings by hand.

Ways to prevent bearing rust:

1. Immersion method: Some small bearings are immersed in anti-rust grease. 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 rust preventive grease to the surface.

2, brushing method: pay attention to evenly spread on the bearing surface when brushing, do not produce accumulation, but also pay attention to prevent leakage coating.

3. Spray method: Some large-scale anti-rust materials are not suitable for oiling by immersion method. Generally, the compressed air with a pressure of about 0.7Mpa is sprayed in the air cleaning place. The spray method is suitable for solvent-diluted rust preventive oil or thin layer rust preventive oil. This method must use sound fire protection and labor protection measures.