Causes and prevention methods of corrosion of imported bearings

Causes and Prevention of Corrosion of Imported Bearings Corrosion of imported bearings is caused by various internal and external factors. The main ones are:
    1, metal surface finish (oxygen concentration difference battery corrosion).
    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, other people'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 imported bearings by hand.

Apply anti-rust oil to prevent skf bearing from rusting
1. Immersion method: Some small imported 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 surface of the imported bearing 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.

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Repair method of roller bearing

The lubricant inside the roller bearing can be roughly divided into oil and grease. Basically, most of the lubricants used in the production of SKATE are grease lubricants, and some of the products on the market are made of oil as a lubricant.
Repair method
· Preparation: Dry towel, sharp tongs, bearing cleaning night, bearing lubricant or grease.
a. Remove the C-ring and shroud: Wipe the dirt off the bearing with a dry towel, then use a pointed plier to lift the side of the C-ring and remove the C-ring and shroud.
b. Bearing cleaning fluid: soak the bearing in the bearing cleaning fluid bought on the market, and shake it at this time, the foreign matter inside the bearing will be shaken out, and some supermarkets buy ultrasonic cleaning machine is also very helpful in removing foreign matter. .
c. Drying: Remove the bearing from the cleaning solution, wipe the cleaning solution with a dry towel, and dry in a cool place.
d. Inject the lubricant according to the trend to inject grease or oil into the bearing, cover the shroud and reattach the C-ring.
e. Detection: Perform several rotations after grasping the inner ring with the fingers that have been assembled into the original state.

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