1) If there is a rhythmic percussion or impact sound when the iko bearing is running, it may be caused by the peeling of the cylindrical roller bearing raceway, indentation, or improper installation of other parts; 2) It is found that the iko bearing has 'clucking, The 'squeaky' sound may be caused by the loose bearing seal, unclean lubricating oil, and too much bearing clearance; 3) It is found that the bearing has a 'squeaking, squeaking' screaming sound, which may be due to the drying of the lubricant or lack of lubricant; 4) If there is a 'rustling' sound in the bearing, it may be that the cylindrical roller bearing has not been cleaned, and the interior is mixed with debris, sand, dust and other debris; 5) The inner ring of the bearing Excessive expansion due to heat, friction between bearings and seals and related parts; 6) When installing the iko bearing, the bearing or other parts are knocked, causing the bearing to deform; 7) The adapter sleeve of the bearing is too tight or loose; 8) Bearing box The size of the bearing is too large (including the increase in use), causing the outer ring of the iko bearing to rotate in the bearing seat...etc., it may cause the bearing to produce noise and abnormal sound. The causes of the vibration of cylindrical roller bearings are basically the same as the causes of bearing noise and abnormal sound, and there is a strong correlation between the two. But vibration frequencies that are not within the audio frequency range will not cause noise and abnormal sounds. Rolling sound of bearing and its control method Rolling sound is the harsh metal friction sound that may occur in cylindrical roller bearings in all occasions. It is more likely to occur in grease and hardly occurs in oil lubrication. In addition, it is more likely to occur in winter. When subjected to pure radial load, it is prone to occur in occasions with large radial clearance, and it is prone to occur within a specific speed range depending on the size of the model, and it will occur continuously. Reappears intermittently. Adopting a special processing method for the outer ring raceway can prevent the occurrence of rolling noise. If necessary, this kind of high temperature bearing can be selected, or the radial clearance of the bearing can be appropriately reduced, and the grease with excellent performance can be used to improve the compatibility with cylindrical roller bearings. The rigidity of the machine. (1) Choose low-noise bearings; this depends on buying high-quality cylindrical roller bearings, generally good iko bearings are made of high-material steel, with high density and high durability; (2) From the bearing Try to eliminate noise in the application link, that is to add lubricating grease on the link, be sure to choose a good lubricating material, which can achieve twice the result with half the effort; (3) Avoid resonance with the host and avoid resonance-sensitive rotational speed; this point requires professional expertise Installation and debugging can avoid resonance problems; (4) if other methods are ineffective, additional measures for sound insulation and noise reduction are taken, and some sound control equipment is installed.
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