Maintenance procedures for thin-wall bearing
2023-12-15
First, bearing installation and disassembly must be careful
Different kinds and sizes of thin-walled deep groove ball bearings, its installation methods and tools are not the same, which have mechanical or hydraulic. Here is mainly to explain some general basic some installation methods and precautions.
First, do not install hard on the balls, which will lead to localized overloading of the balls and contact surfaces, resulting in premature bearing failure.
Second, do not use hard tools, such as hammers, screwdrivers and so on to knock the surface of the bearing, which will make the outer ring of the bearing broken or brittle.
Second,Cleaning of bearings
A clean usage environment is very important for bearings. Thin-walled deep groove ball bearing ring rotating surface and rolling element surface roughness accuracy is about 1/10 μm, such smooth ball surface if dirt, its impact is very serious. The lubrication layer between the rolling surfaces is usually 0.2~1 μm, and particle-type impurities larger than the lubricant particle size will be subjected to excessive crushing of the rolling elements and generate localized pressure in the spherical roller bearing steel, which will eventually lead to permanent material fatigue. In addition to this, dust particles in the external environment up to 10 μm in size can also damage spherical roller bearings. Because of this, a clean and tidy working environment is so important for bearings.
Third, the process of bearing testing
In the process of use through the heat dry up to sense the working temperature of the bearings, if the temperature is found to exceed the prescribed limit then it will be automatically alarmed to prevent the occurrence of burning shaft. High temperatures are often used to indicate that the bearing is in an abnormal condition. High temperatures are also detrimental to the bearing lubricant. Sometimes overheating of thin-walled deep groove ball bearings can be attributed to the bearing lubricant. If a bearing is run continuously for a long period of time at temperatures in excess of 125 degrees Celsius, bearing life will be reduced. Causes of high temperature bearings include: may be insufficient bearing lubrication lubricant is unqualified, which contains impurities, the load is too large when it may also be the bearing internal clearance is not enough to produce the friction of the oil seal and so on.