Source：http://en.hnjczc.com/news/4.html Release time：2021-07-12 Click on：636
In the assembly process of thrust ball bearings, planar thrust bearings are mainly used for bearing axial loads and are widely used. Although the installation operation of the thrust bearing is simple, the installation operation of the thrust ball bearing is relatively simple, but there are still errors in actual maintenance, that is, the installation position of the tight ring and loose ring of the bearing is incorrect, which leads to the failure of the bearing and the rapid wear of the journal . The tight ring and the axial neck are transitionally matched, so that the axial neck is quickly worn and dropped.
When the shaft rotates, the inner ring of the tight ring and the journal make a transitional fit, which drives the tight ring to friction with the end surface of the stationary part. When the shaft rotates, it drives the end surface of the stationary part to friction. When the axial force (Fx) When acting, the friction torque generated is greater than the resistance torque of the inner diameter matching. When the axial force (Fx) acts, the friction torque generated is greater than the resistance torque of the inner diameter matching. The guide (FX) forces the tightening ring to rotate and aggravate the journal wear.
So when installing the thrust bearing, the following points should be paid attention to.
1. Distinguish the tight ring and loose ring of the bearing, judge according to the size of the bearing inner diameter, divide the hole diameter of the tight ring and loose ring of the bearing into 0.1~0.5mm, the difference is 0.1~0.5mm)
2. The static block of the separation mechanism (that is, there is no moving part, mainly refers to the static block equipped with the separation mechanism).
3. In any case, the loose ring of the bearing should always rest on the end face of the fixed part.
The above are some precautions for the installation of thrust ball bearings, you can find out!
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