How to Distinguish The Bearing Quality [Quick]

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Issue Time: Sep 16,2020

Summary

The bearing quality is related to the process of industrial production. Many people reported that how to distinguish bearing quality is a problem.

How to Distinguish The Bearing Quality [Quick]

The bearing quality is related to the process of industrial production. Many manufacturers and some customers reported that how to distinguish bearing quality is a problem. This article briefly introduces how to distinguish the quality of bearings.

Outer Packaging Identification

The first thing to judge is whether the outer packaging of the bearing is clear. That is to identify whether the packaging is clear. Under normal circumstances, the factory brand has its own dedicated designers to design external packaging. If you observe carefully, you can distinguish it. And the factory strictly controls production conditions. Therefore, the packaging is very clear and unambiguous from lines to color blocks. Some manufacturers also have some special identifiers, so you should be careful.

Bearing Quality Internal Inspection

Next, check whether the steel stamping is legible. In most cases, there are printed brand words and labels on the bearing body. The font is very small, but most of the products use stencil printing technology. Moreover, the factory press the characters before the heat treatment, so although the font is small, it is deeply concave and very clear.

If it is a counterfeit product, its font is very fuzzy. Because of the rough printing technology, the font floats on the surface. Then listen to whether the bearing has noise. Hold the inner sleeve of the bearing, turn the outer sleeve to make it rotate, and listen for bearing noise. The production conditions of most counterfeit products are backward. It is inevitable that impurities such as sand will be mixed in the production process, and they will be hidden in the bearing body, so noise will be generated when rotating.

Bearing Details Identification

Observe whether there are turbid oil traces on the bearing surface. The anti-rust technology of some factories is not mature enough, so it is easy to leave thick oil stains when anti-rust treatment on the bearing body. Then observe whether the bearing chamfer is uniform. That is the junction of the horizontal plane and the vertical plane. Due to the limitation of production technology and no high-tech equipment, counterfeit bearings will be handled poorly at these corners and corners. It is not difficult to see through careful observation.