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How does Press outer ring needle bearing prevent rust?

Release time：2019-03-13 08:46:23      Click：
1, there is human hand sweat will cause the stamping outer ring needle roller bearing corrosion, human sweat is a colorless transparent or light yellow with a salty weak acidic liquid, its pH value of 5 ~ 6. In addition to sodium, potassium, calcium, magnesium salt, but also contains a small amount of urea, lactic acid, citric acid and other organic acids.

When sweat and bearing surface contact, will form a layer of sweat film on the surface of the bearing, sweat film will cause electrochemical effect on the bearing, corrosion bearing, resulting in embroidery. Sweat is inevitable, to prevent hand sweat caused by rust, is the production staff in the assembly of the bearing should wear gloves, finger sleeve, or use special tools to take the bearing, do not casually touch the bearing surface with the hand.

2, first of all, bearing surface cleaning: cleaning must be in accordance with the nature of the rust surface and the current conditions, the appropriate method. It is to clean more commonly with solvent, chemical treatment cleanness law and mechanical cleanness law.

3. Immersion method: the outer ring needle roller bearing is immersed in anti-rust grease to make its surface adhere to a layer of anti-rust grease. Oil film thickness can be achieved by controlling the temperature or viscosity of the anti-rust grease.

4. The bearing surface can be dried and cleaned with filtered dry compressed air, or with a dryer of 120~170 degrees Celsius, or with a clean gauze.
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