2013年8月12日星期一

Eccentric bearing corrosion and its prevention method


 Eccentric Tapered bearing corrosion by a variety of intrinsic and extrinsic factors that caused summarized in:
     1, the metal surface finish (oxygen concentration differential cell corrosion). Crossed roller bearings
     2, the metal chemical composition and structure of the material itself.
     3, the solution in contact with the metal surface composition and pH value;
     4, the ambient temperature and humidity.
     5, with the metal surface in contact with environmental media. Thin section crossed roller bearings
     6, another person's 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 imported bearings.
     Oiled to prevent rust eccentric bearings Thrust cylindrical roller bearings
     1, soak method: Soak some small bearings used in antirust oil, the oil 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 when the attention of import bearing surfaces, do not produce accumulation and pay attention coated to prevent leakage.
     3, the 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 used with good cross-tapered roller bearings

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