These foreign objects and the indentations caused by them destroy the integrity of the oil film and become the fatigue of the early failure of the spindle bearings of the machine tool. The above judgment is correct.
The development of a "seal-clean" type bearing has achieved great success. This kind of bearing is a rubber sealing ring with a special structure on both sides of the original standard bearing. The characteristic is that the sealing ring is mainly used to prevent the intrusion of dirt into the bearing, and the main purpose is to maintain the grease. The seals are different.
1, through the surface feeling bearing quality
In the process of selling Swedish bearings, I found that many customers said that as long as the bearing surface is bright, the quality is good, which is wrong. The surface of the machine tool spindle bearing should be bright, and the reason for this blackness is that the steel used in the bearing is up to standard and its grinding process and cutting fluid used, etc., the former two are the main ones.
2. Is the chamfer bright?
The chamfer of the spindle of the machine tool does not determine the quality of the stainless steel bearing, but it reflects the processing method of the bearing. The chamfer is black, indicating that heat treatment such as quenching increases the hardness of the bearing, and some people think that the chamfer is black and it is not processed completely. This is a misunderstanding.
3, the integrated cage is better than the two bodies, although the new process uses an integrated cage, but it only saves the material, and the performance of the rotation is worse than the two.
In general, the service life of machine tool spindle bearings is related to three factors, one is the quality of the bearing itself. The second is to use the environment. The third is the installation method.
For more information and purchase please visit: https://www.supplyforever.com
