Thrust ball bearing "device stability" point of view

Source: China Bearing Network Time: 2017-10-18

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When the KEN bearing equipment is regularly inspected, worked, and the thrust ball bearings that have been disassembled during the replacement of the peripheral parts are inspected, it is necessary to determine whether the secondary bearing parts can be reused and the application status is better or worse. And record the bearing and appearance of the removed. In order to find out and check the remaining amount of smoothing agent; sampling in the future; to clear the bearing well.
When adding smooth grease to anti-friction bearings; high pressure theory is not required; unless it is used with great care, high pressure can damage the bearing; dregs smooth grease; excessive smooth grease causes high temperature risks and creates invisible around the bearing Environment. In most applications; ball or roller bearings can be completely smooth; if the smooth grease level accounts for one-third to one-half of the bearing capacity. The excess will usually be discharged by the sealed casing and spoiled.
1. Do you have all the requirements for the appearance of the device and the installation site?
If the thrust ball bearing has foreign matter such as iron filings, burrs, dust, etc.; it will cause noise and oscillation during the operation of the bearing; even damage the raceway and the rolling body. Therefore; before the bearing of the device; you need to ensure the appearance of the device and Hygienic environment of the device.
2. Is it necessary to remove the bearing unit?
The outer surface of the bearing is coated with anti-rust oil; you need to carefully remove it with hygienic gasoline or fire oil; then apply it with clean high-quality or high-speed high-temperature smooth grease.
3. How to choose smooth grease?
Smoothness has a very important influence on the work and life of the bearing.
Here is a general guideline for the analysis of smooth greases. Smooth greases are made from base oils, thickeners and additives; different types of smooth fats with different brands and different brands have very different functions; the required rotation limits are different; Must pay attention to when picking.
The function of smooth grease is mainly determined by the base oil.
Generally low viscosity base oil is suitable for low temperature, high speed, high viscosity for high temperature and high load.
The thickener is also related to the smooth function; the water resistance of the thickener determines the water resistance of the smooth grease.
In the guidelines; smooth greases of different brands cannot be mixed; and; even smooth fats of the same thickener; may have bad effects on each other due to different additives.
4. When smooth bearings are used, the more grease is applied, the better?
For smooth bearings; the more grease is applied, the better; this is a common concept of fault.
Thrust ball bearings and excessive grease in the bearing chamber will form excessive mixing of grease; then extremely high temperatures occur.
5. How to install and disassemble?
Do not directly hammer the end face of the thrust ball bearing and the non-stressed surface when the device is installed; the bearing should be evenly stressed by the clamp, sleeve or other device.

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