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Installation and maintenance procedure of thin wall deep groove ball bearing

wallpapers Environment 2021-05-08
1、 Bearing installation and disassembly must be careful
 
Different types and sizes of thin-walled deep groove ball bearings have different installation methods and tools, including mechanical or hydraulic. Here is to explain some general basic installation methods and precautions.
 
First, do not install the ball hard, which will lead to local overload of the ball and contact surface, leading to premature failure of the bearing.
 
Second, do not use hard tools, such as hammers, elevators and so on to knock the surface of the bearing, which will make the outer ring of the bearing fracture or brittle.
 
2、 Cleaning of bearings
 
A clean environment is very important for bearings. The surface roughness accuracy of thin-walled deep groove ball bearing ring and rolling element is about 1 / 10 μ m. If the smooth ball surface is polluted, its influence is very serious. The lubrication layer between rolling surfaces is usually 0.2 ~ 1 μ m. The particle type impurities larger than the lubricant particle size will be over rolled by the rolling element, which will produce local pressure in the self-aligning roller bearing steel, and eventually lead to permanent material fatigue. In addition to this, the size of dust particles in the external environment can reach 10 μ m. It can also cause damage to self-aligning roller bearings. Because of this, clean and tidy working environment for the bearing is how important ah.
 
3、 Process inspection of bearing
 
In the process of use, the working temperature of the bearing is detected by hot drying. If the temperature exceeds the specified limit, the alarm will be given automatically to prevent the occurrence of shaft burning. High temperature is often used to indicate that the bearing is in abnormal condition. High temperature is also harmful to bearing lubricants. Sometimes the overheating of thin-walled deep groove ball bearings can be attributed to the lubricant of the bearings. If the temperature of the bearing exceeds 125 ℃ for a long time, the service life of the bearing will be reduced. The causes of high temperature bearing include: the bearing may be lack of lubrication, unqualified lubricant, which contains impurities, when the load is too large, it may also be that the internal clearance of the bearing is not enough, and the oil seal has friction and so on.
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