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Spalling of the bearing is mainly due to fatigue damage
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| Time：2016.09.29 News Sources：Shandong Xinkaite bearing Co.,Ltd. Views：
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The processing precision of the roller accessories mainly refers to the concentricity of the inner hole at both ends of the outer shell and the roller, and the machining precision of the axial dimensions of the parts. If the concentricity is too poor, will cause the bearing to kill, increase resistance and reduce the service life; if the axial size of the part is too large error, will form a larger axial clearance, resulting in axial movement, destruction of lubrication and sealing; Installation quality is not good, will occur deviation, bite cards, increased wear, greatly reducing the roller life. How to rationally arrange the rollers and design proper roller spacing to reduce the number of rollers, reduce the price of the whole machine, reduce the investment, operation and maintenance costs, improve the economic efficiency, the roller processing technology is an important aspect. The roller accessories can play an important role and value in the use of the roller, can help the use and maintenance of the roller, help users play an important role in the maintenance of roller and value. Roller parts manufacturing process will affect the dynamic load roller, the dynamic load of the basic reason is that the thickness of the roller casing shell and shell radial imbalance caused by the quality of the radial. To ensure the processing and assembly of roller quality, the key is to find a strong technical force, improve the technical equipment, scientific management and good sense of service roller manufacturers, the manufacturer should be able to provide users from the design calculation , Roller selection, economic and technical analysis to the whole design of the complete technical services.
Spalling of the bearing is mainly due to fatigue damage. Because the load bearing the size and direction of the load changes with time, when the load is not stable, the friction between the bearing surface can not maintain a uniform continuous oil film, and the pressure of the oil film is also pulsating change. In the minimum film thickness, the bearing surface of the local area of high temperature, greatly reducing the fatigue resistance of the alloy layer. In addition, the bearing itself manufacturing poor assembly, but also lead to the direct cause of alloy layer peeling.
In addition to wear and peeling off, sliding SKF bearings corrosion is also worth noting the problem, which depends on the oil quality, temperature, pressure and bearing load. Bearing high-load parts of the most prone to corrosion, and lubricating oil at high temperatures generated by the deterioration of organic acids and sulfides is the direct cause of bearing corrosion.
Bearing burning, commonly known as "burning tile", the main reason is the gap is too small, poor lubrication and the use of operating problems.
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