Generally speaking, the quality of bearings in NTN bearings is very strong. It is not comparable to ordinary bearing products, but even if the bearings are good or bad, for example, the bearings produced in authentic Japan are much better than the bearings produced in the domestic joint venture. So how do we detect the quality of NTN bearings?
One-piece cage is better than two bodies
Although the new process uses an integral cage, it only saves material, and the performance of the rotation is worse than the two. In general, the service life of the bearing 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.
Is the chamfer bright?
The chamfer of the bearing does not determine the quality of the bearing, but it reflects the machining 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.
Surface feel bearing quality
According to sales experience, many customers say that as long as the bearing surface is bright, the quality is good, which is wrong. The brightness of the bearing surface 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.
Even if the smiling dust that is invisible to the naked eye enters the bearing, it will add wear, vibration and noise to the bearing.
When taking the NTN bearing directly by hand, wash the sweat on your hands and apply high-quality mineral oil before stopping the operation. Pay special attention to rust prevention during the rainy season and summer.
Under certain premise operations, NTN bearings are able to achieve longer lifespans that are better at traditional contests, especially under light load conditions. These extraordinary operating preconditions are when the rolling surfaces (tracks and rolling elements) are effectively separated by a lubricant film and the surface damage that may be caused by contaminants is limited. In fact, under the premise of fantasy, the so-called Eternal bearing life is possible.
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