- Reasonable selection of high-precision imported bearing application methods
- Tolerance fit between bearings and shafts, bearings and holes
- What are the properties and requirements of bearing steel
- The rolling sound of the bearing can determine the fault
- High temperature may cause irreversible damage to bearings
- Should bearings be selected in this way?
- Debugging and measurement of bearing usage
- The impact of the quality of bearing configuration on operation
- What kind of rolling bearings have repair value?
- The benefits of collaborating with professional bearing manufacturers
The rolling sound of the bearing can determine the fault
2025-05-16 15:00Using a sound detector to check the size and sound quality of the rolling sound of the running bearings. Even if there is slight peeling or damage to the bearings, abnormal and irregular sounds will be emitted, which can be distinguished by the sound detector. Using auditory perception to identify irregular movements is a very common method. For example, using an electronic stethoscope to detect abnormal noise from a certain component is often a method used by experienced operators.
1. If the bearing is in good continuous rotation, it will emit a low whining sound. If there is a sharp hissing, squeaking, or other irregular sound, it often indicates that the bearing is in poor running condition. Sharp squeaking noise may be caused by improper lubrication. Inappropriate bearing clearance can also cause metallic noise.
2. The concave groove on the outer ring track of the bearing can cause vibration and produce a smooth and crisp sound.
3. If the impact damage caused during installation also generates noise, this noise will vary with the speed of the bearing.
4. If there is intermittent noise, it indicates that the rolling elements may be damaged. This sound occurs when the damaged surface is rolled over, and if there are pollutants inside the bearing, it often causes a hissing sound. Severe damage to the same structure can result in irregular and loud noise.
5. Although bearing damage can be detected by hearing, it is usually necessary to replace the bearing immediately at this point. So, a better method is to use electronic condition monitoring instruments such as SKF. Compared to the old method of using a wooden stick or screwdriver to press against the bearing box with the other end against the ear, the new invention ensures safer and more accurate estimation of the bearing condition.
