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How to distinguish the pros and cons of bearings

How to distinguish the quality of bearings To identify the quality of equipment bearings, we usually do it from the following aspects:

1. Is the outer packaging clear?

Under normal circumstances, the brands produced by regular manufacturers have their own dedicated designers to design the external packaging and arrange factories that have passed the production conditions for production. Therefore, the packaging of the products should be very clear from lines to color blocks. unambiguous.

2. Whether the steel printing is clear

Each bearing product will have its brand words, labels, etc. printed on the bearing product body. Although the font is very small, the products produced by regular manufacturers are printed with steel stamping technology, and they are embossed before heat treatment. Therefore, although the font is small, it is deeply concave and very clear. Under normal circumstances, the fonts of counterfeit products are not only vague, but because of the rough printing technology, the fonts float on the surface, and some can even be easily erased by hand or have serious hand marks.

3. Is there any noise

Hold the inner sleeve of the bearing body with the left hand, turn the outer sleeve with the right hand to make it rotate, and listen to whether there is any noise during the operation of the bearing. Due to the backward production conditions of most counterfeit products and the completely manual workshop operation, impurities such as dust and sand will inevitably be mixed into the bearing body during the production process, so there will be noise or unsmooth operation when the bearing rotates. . This is the key to judging whether the product comes from a branded product of a regular manufacturer that has strict production standards and is operated by machines.

4. Is there any turbid oil on the surface?

Whether there are turbid oil traces on the surface, we should pay special attention when purchasing imported bearings. Due to the gap between the current domestic anti-rust technology and foreign advanced manufacturing countries, it is easy to leave thick oil traces when the bearing body is anti-rust treatment, and it feels sticky and sticky when touching it with hands. There is hardly any trace of anti-rust oil on the imported bearings. According to industry insiders, people who are particularly attentive can smell a special smell on imported bearings, which is the smell of anti-rust oil.

5. Is the chamfer uniform?

The so-called chamfer of the bearing is the junction of the horizontal and vertical surfaces. Due to the limitation of production technology, counterfeit-bearing products are not handled well in these corners and corners. We can easily distinguish this point.

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