Cause motor bearing rusty

Nsk bearing motor produces rust are complex and may be bearing rust handled properly, water may be caused by corrosion, and corrosion caused by the mist.
Most electrical insulation used in paint factories out of the acid volatile There are four main components: ① the reaction of low molecular weight did not paint the acid composition (anhydrous different o-and p-phthalic acid, anhydrous maleic acid, trans- maleic acid). ② paint curing the resulting acid composition (phenolic degeneration paint, by the formaldehyde water into acid). ③ heat or oxidative decomposition of the low fatty acid (acid, acetic acid). ④ After the paint cured hydrolysis the acid component generated. The main cause of insulating paint composition is formic acid, formic acid, the occurrence of volume and extent of corrosion occurring between the close relationship. Grease paint in the adsorption of volatile components out of the acid, causing grease deterioration, and this acidic ingredients also promote the hydrolysis of fat, resulting in increased concentration of acidic components, NSK Bearings cause corrosion.

Grease works is the use of oil layers to separate the ball and the inner and outer raceway, using oil viscosity characteristics, attached to the ball and the raceway surface, separated by a steel ball and the inner and outer raceway of the metal interface, reducing the metal surface wear and to protect the metal from air and moisture corrosion, reduce vibration and noise, the smooth rotation of the bearing. However, after modification grease, viscosity change, break through film, grease and adhesion characteristics of the separation function will disappear, the consequences of this, one makes the varnish composition produced by the direct oxidation of the metal surface acidic, causing corrosion bearings. Second, the ball caused by the direct touch with the inner and outer raceway, rotating when worn, causing increased noise.
 

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