Analysis of the forms and causes of rolling bearing damage
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In actual work, replacing bearings may be a complicated task. Do you know what the damage types of rolling bearings are? What is the cause of the damage?
Bearing overheating, insufficient lubricating oil, excessive shaft vibration, and bearing aging
There are detailed explanations in the technical support on the website of Harbin Bearing Manufacturing Co., Ltd.
tjdxz The main thing is practical experience, not theoretical knowledge!
Damage form 1. Rolling elements are worn or peeled 2. Raceways are blurred or peeled 3. Cage is broken 4. Causes of shaft holding 1. Too much or too little lubricating oil 2. Deterioration of lubricating oil 3. Poor alignment of machine pump 4. Aging of bearings 5. Blockage of cooling water in bearing box
The main reasons are: Vibration (the coupling is not concentric and the equipment is not operating normally). The wrong model of lubricating oil or grease is selected. The bearing selection is unscientific and cannot eliminate axial movement or radial load. The oil throw ring in the oil chamber cannot lubricate the upper part of the bearing.
In fact, there is a problem that is easily overlooked by everyone. In fact, bearings have strict requirements during assembly. Sometimes the damage of the bearing has a lot to do with your assembly, such as the matching tolerance of the inner and outer rings, the shaft, and the bearing seat.
The bearing environment has a great influence on the bearing life, especially dust and other accelerated wear.
What people on the 5th and 6th floors say makes sense!
The 5th and 6th floors are quite comprehensive. Let me tell you about a problem that occurred during assembly. There is trauma to the shaft, and there are bulges that cause the bearing rolling elements to get stuck, which in turn causes damage.
There are too many factors, so it’s better to look at the manufacturer’s technical information.