Bearing corrosion causes and solutions

Bearing corrosion is very common, it will reduce bearing life. So everyone in their daily work must pay attention to this issue.
High temperature bearing corrosion causes and prevention methods to determine, first look at high-temperature bearing corrosion is caused by what is generally divided into external and internal factors. Summarized:
A metal surface finish (poor oxygen concentration cell corrosion).
2 metal chemical composition and structure of the material itself.
3 solution in contact with the metal surface composition and pH.
4. Ambient temperature and humidity.
5 in contact with the metal surfaces of the various environmental media.
6 different people sweat also lead bearing corrosion reason, it had a pH of 5-6. Therefore, in order to prevent corrosion caused by hand sweat, installation and production personnel should wear gloves, it should not touch the high temperature bearings.
Oiled to prevent rust high temperature bearings:
1 immersion method: some small bearings with high temperature grease soaked in rust, the film thickness can be controlled by anti-rust oil temperature or viscosity to achieve. Adhesion to the surface layer of rust grease approach.
2 brushing method: Brush evenly spread attention when bearing surfaces at high temperatures, do not produce accumulation and pay attention coated to prevent leakage.
3 spray method: Some material not suitable for large-scale anti-rust oil coating by immersion method, generally about 0.7Mpa pressure filter with compressed air spray cleaner place. Spray application of anti-rust oil or solvent dilution thin rust oil. This method must be improved fire protection and labor protection measures.
    Rotates under load bearing inner and outer raceway or rolling a decent due to rolling fatigue showing scaly peeling.
Bearing peeling injury reasons:
1, the load is too large
2, poor installation (non-linear), torque load, foreign invasion, water.
3, poor lubrication, lubricants unsuitable bearing clearance inappropriate.
4, the bearing box accuracy is not good, the rigidity of the bearing box uneven shaft deflection
5, rust, corrosion points, scratches and indentations (surface deformation) caused by the development.
Measures taken to solve bearing peel injury:
1, check the size of the load and re-used for the study of the bearing
2, improved installation methods, to improve the sealing device shutdown rust.
3, using the appropriate viscosity lubricant to improve the lubrication method.
4, check the accuracy of the shaft and bearing housing
5, check the clearance.