Bearings also have natural wear
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| Time：2017.08.12 News Sources：Shandong Xinkaite bearing Co.,Ltd. Views：
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Many maintenance workers can see that the bearings are worn out in many cases, and the machines can not be used properly. Whats the matter? To tell you that the bearings also have natural wear phenomenon, the main factors are as follows:
1. Oxidation wear. Bearing relatively small peak valley and air movement on the surface of oxidation synthesis generated and matrix metal joint brittle oxide solid, the oxide is easy to fall off in the friction, the wear occurred called oxidation wear.
2, when the bearing wear friction in high speed heavy load and poor lubrication condition, the appearance of peak valley due to friction at high temperature, the contact point hardness and wear resistance decreased, even adhesion and tearing. This wear is called frictional heat build-up.
3. Abrasive wear. When the bearings are in relative motion. Bearing movement organization appearance unevenness, are hard particles, motion appearance or bearing friction fell into the sand, scrap, chips and other impurities, bearing in relative motion, hard particles or impurities would be bearing surface scratches even form a groove, the abrasion wear is called durum.
4 pitting corrosion. The appearance of gear rolling contact bearings, the relative process periodically by the contact pressure, long time, the appearance of metal fatigue phenomenon, the small cracks and erosion occurred on the surface of bearing wear, called pitting wear.
5. Chemical corrosion wear. As a result of water, acid, alkali, salt and other liquids or harmful gas temporary contact, corrosion damage: equipment on non moving bearings. Damage caused by rust or corrosion is called corrosion damage. Wear or tear caused by rust or corrosion of bearings. The bearing surface is subjected to acids, alkalis, salts, liquids, or harmful gases. The wear process is accelerated, which is called wear caused by chemical corrosion. |
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