Date: 2013-08-05

Install thrust bearing good or bad the quality was detected a few errors

Install thrust bearing, they should test shaft ring and shaft centerline perpendicularity. Method is to dial gauge fixed on the tank shell face, so touch the table top of the head ring in the bearing raceway upper rotating shaft bearings, side observation dial gauge pointer, if the pointer yaw show ring and shaft axis is not perpendicular to the centerline. Tank-shell holes deeper, we can still head with the lengthening of the dial gauge tested.
Thrust bearing is installed correctly, its seat ring can automatically adapt to rolling body rolling, rolling bodies to ensure that rings in the upper and lower raceway. If you installed anti-, not only bearing is not working properly, and the mating surface would be subjected to severe wear and tear. As the shaft ring and the seat ring and differences were not very clear, the assembly should be careful not to mistake. In addition, the thrust bearing ring and the seat should be left between the bearing bore 0.2-0.5mm gap to compensate for part machining, installation errors caused by inaccurate, when in operation bearing ring center bias, this gap to ensure its automatic adjustment, to avoid friction and touch to make it operate normally. Otherwise, it will cause severe damage bearings.
Buy ntn bearing good or bad the quality was detected a few errors:
1, through the sense of bearing surface, the quality of
We are in the sales process of ntn bearings found that many customers that as long as the bearing surface is a good quality and bright, it is wrong. Bearing surface of the light should be the kinds of glossy black, glossy black for this reason is bearing steel is used in compliance with its grinding process and the use of cutting fluid, etc. generated, in which the two previous main.
2, chamfer is bright
Bearing ntn bearing chamfer is not the quality of the decision, but it reflects the bearing of the processing methods. Chamfering is black, shows that, after quenching and other heat treatment, which increases the hardness of the bearing, and some people think that black does not look good is no chamfer processing completely, it is erroneous.
3, one cage better than the two-body, although new techniques are used one cage, but it is only to save material, while the rotating body such as the difference between performance ratio 2.
In general, ntn bearing service life and the relationship between three factors, one bearing its own quality. Second, the use of the environment. The third is installation method

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