Bearing is the main running parts of machinery and equipment. In the process of using, its performance will directly affect the use effect of machinery and equipment. Therefore, many people will hear some noise in the process of using bearings, which is probably the result of our daily failure to maintain carefully. However, there are also reasons for bearing noise. Chinese bearing net shares the common factors of bearing noise.
1. Impurities such as sand or carbon particles are mixed into bearings to act as abrasives.
2. Contaminants such as water, acid or paint are mixed into bearings to corrode.
3. The clearance of bearing is too small.
4. incorrect selection of lubricating oil or grease;
5. Insufficient lubrication (oil level is too low, oil or grease leaks through sealing);
6. The bearing is clamped flat by the seat hole (the roundness of the seat hole is not good, or the distortion of the seat hole is not straight);
7. The irregularity of the pad iron on the bottom of the bearing seat (leading to the deformation of the seat hole and even the crack of the bearing seat);
8. There are impurities in the bearing seat hole (residual chips, dust particles, etc.).
9. Eccentricity of sealing ring (encounter adjacent parts and friction);
10. Bearings are subjected to additional loads (bearing is subjected to axial tightening, or two fixed-end bearings on a shaft).