Writer： admin Time：2021-08-14 09:11 Browse：℃
Causes of bearing noise
①Excitation caused by changes in the number of loaded rolling elements
When a radial load is applied to a certain bearing, the number of rolling elements carrying the load will slightly change during operation, causing the deviation of the load direction.
Due to operation or installation errors, a small part of the bearing raceways and rolling elements may be damaged. During operation, damaged bearing components will produce specific vibration frequencies. Vibration frequency analysis can identify damaged bearing components. This principle has been applied to condition monitoring equipment to monitor bearing damage.
③Accuracy of related parts
In the case of a close fit between the inner and outer rings of the bearing and the bearing seat or the drive shaft, the inner and outer rings of the bearing may be deformed due to improper fit with the adjacent parts. If it is deformed, vibration and noise may occur during operation.
If the equipment is operated in a polluted environment, impurities may enter the rolling elements of the bearing and cause vibration. In this case, an annoying noise can usually be heard.
The causes of noise produced by rolling bearings are more complicated. One is the wear of the mating surfaces of the inner and outer rings of the bearing. Due to this wear, the matching relationship between the bearing and the housing, the bearing and the shaft is destroyed, and the axis deviates from the correct position. Abnormal noise occurs when the axis is moving at high speed
In addition, insufficient bearing lubrication, formation of dry friction, and bearing breakage will cause abnormal noise. Abnormal noise can also be produced by bearing wear and cage loosening and damage
Phone: +86 13598495189
Tel: +86 379 63086182
Add: Chuangye Road, Konggang Industrial cluster district, Luoyang city, Henan province, China