Principle of Solving Common Abnormal Damage in Cylindrical Roller Bearings

1) If there is a rhythmic knocking or impact sound during the operation of the bearing, it may be caused by peeling of the cylindrical roller bearing raceway, pressure marks, or improper installation of other parts;

2) The sound of "Gulu, Gulu" was found in the bearings, which may be caused by poor sealing of the bearings, unclean lubricating oil, and excessive bearing clearance;

3) Discovering a squeaking sound in the bearings, which may be caused by the drying or lack of lubricant;

4) If a rustling sound is found in the bearing, it may be due to the cylindrical roller bearing not being cleaned thoroughly and mixed with debris, sand, dust, and other debris inside;

5) The inner ring of the bearing expands excessively due to heating, causing friction between the bearing and sealing components and related parts;

6) When installing bearings, deformation of the bearings is caused by knocking on the bearings or other parts;

7) The tightening sleeve of the bearing is too tight or loose;

8) The size of the bearing box is too large (including increasing during use), causing the outer ring of the bearing to rotate in the bearing seat... etc., which may cause noise and abnormal sounds in the bearing. The causes of vibration in cylindrical roller bearings are basically the same as the causes of bearing noise and abnormal sounds, and there is a strong correlation between the two. But vibration frequencies that are not within the audio range will not cause noise or abnormal sounds.

Rolling sound of bearings and its control methods Rolling sound is a harsh metal friction sound that can occur in cylindrical roller bearings in all situations, mostly in larger types of bearings lubricated with grease. It is more likely to occur in lubricating grease with degraded base oil performance and rarely occurs in oil lubrication. In addition, it is more prone to occur in winter. When subjected to pure radial loads, it is more likely to occur in situations with large radial clearances, and depending on the size of the model, it is more likely to occur within a specific speed range, both continuously and intermittently. Adopting special processing methods for the outer ring raceway can prevent the occurrence of rolling noise. If necessary, this high-temperature bearing can be selected, or the radial clearance of the bearing can be appropriately reduced, high-performance lubricating grease can be used, and the rigidity of the machine parts matched with cylindrical roller bearings can be improved.

(1) Choose low-noise bearings; This depends on buying high-quality cylindrical roller bearings. Generally, good bearings are made of high material steel, which has the characteristics of high density and high resistance;

(2) Efforts should be made to eliminate noise in the application process of bearings by adding lubricating grease to the process. It is necessary to choose the appropriate lubricating material, which can achieve twice the result with half the effort;

(3) Avoid resonance with the host and avoid resonance sensitive speeds; This requires the installation and debugging of professional personnel to avoid resonance pr