What are the reasons for the noise of lathe spindle bearings-

What are the reasons for the general noise of lathe spindle bearings? We summarize the following for everyone: 1. Flutter caused by the change of the total number of loaded rolling elements When an axial load is loaded on a certain bearing, the total number of rolling elements carrying the load will change slightly during operation, resulting in Offset in the direction of the load. 2. Partial damage Due to actual handling or installation errors, a small part of the bearing dovetail guide and rolling elements may be damaged. During operation, damaged bearing components generate specific vibration frequencies. This basic principle has been applied to condition monitoring machines to detect bearing damage. 3. The precision of the relevant parts. When the inner and outer rings of the lathe spindle bearing are closely matched with the bearing seat or the rotating shaft, the inner and outer rings of the bearing may be unreasonably matched with the shape of the adjacent parts and deformed. If deformed, vibration and noise may occur during operation. 4. Pollutants If the equipment operates in a polluted environment, residues may enter the bearing rolling elements and cause noise. 5. Other factors The reasons for the noise caused by the lathe spindle bearing are more complicated. One is that the inner and outer surfaces of the bearing are damaged. Due to this damage, the relationship between the bearing and the housing, the bearing and the shaft is destroyed, and the center line deviates from the correct position. The shaft makes abnormal noise when it moves at high speed. In addition, the bearing lubrication of the lathe spindle is not enough, resulting in dry friction, and bearing crushing will produce abnormal noises. Damaged bearings, loose and damaged bearings will also produce abnormal noise. Only when the torque is accurate can the rotation be stable! (http://)

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