(1) Scar sound and its control method
If the rolling surface of the rolling bearing has cracks, indentations or rust, periodic vibrations and noises such as riveted rivets will occur, and the period may be fixed. Most of the rotations have a certain correspondence with the rotational speed, and the flaws will continuously occur on the channel. The flaws are hidden on the steel ball and the noise varies with installation and lubrication conditions.
The control method of this kind of noise is: the thrust ball bearing can not be knocked during installation, and the bearing is installed when the bearing is assembled with the shaft and then installed into the bearing seat to prevent the bearing from being inclined; the INA bearing is prevented from being rusted during storage and the shock vibration is prevented during transportation; High grease
(2) Dust sound and its control method
There are foreign substances such as dust in the rolling bearing, and non-periodic vibrations and so-called dust sounds occur, and the magnitude of vibration and noise is variable, and may or may not be.
The control method of dust sound is: improve the cleaning method of INA bearing. Before installation, the thrust ball bearing, shaft, seat hole and matching parts are all strictly clean and clean; remove foreign matter in the lubricant; improve the sealing of the bearing; avoid the use of materials. Plastic cage with pure or embedded foreign objects.
(3) Noise caused by lubrication factors and countermeasures
Mistakes in lubricant selection, insufficient lubricant, or aging induration can cause vibration and noise in thrust ball bearings, and this noise has no regularity. In this case, only use a suitable lubricant, adjust the amount of lubricant, extend the life of the lubricant and determine the replacement cycle.
Improper lubrication accounts for 36% of the causes of premature bearing failure. General purpose greases do not meet the needs of a wide variety of special INA bearing applications, using only one or all common greases for all thrust ball bearing applications. The problems caused will far outweigh the benefits of the unified brand. Bearing application conditions are very diverse, the correct lubrication is required to match the grease and bearing application conditions.
Bearing grease is the basis for smooth, worry-free operation and maximum reliability, even under the most extreme operating conditions. Grease prevents contaminants from entering the INA bearing, cushioning shock loads and preventing corrosion. Choosing the right grease in practical application is the basic condition for obtaining the maximum service life of thrust ball bearings.
The criteria for proper lubricant selection include the type and size of the thrust ball bearing, temperature, speed, load, and expected service life and relubrication cycle.
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