How to distinguish the quality of the square bearing?

How to distinguish the quality of the square bearing? The outer spherical bearing with square seat is a common type of bearing for mechanical parts, and its application field is also very wide. Therefore, the quality of the square bearing is very important to the performance of the bearing. If the quality of the outer spherical bearing is not good, It will directly cause the bearing to be damaged earlier, causing the bearing to not be used normally, and even causing certain damage to the machine. Therefore, when choosing square bearing, we must pay attention to the quality of their products.

The quality of the square bearing can be analyzed from three 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 for production in factories that pass the production conditions. Therefore, the packaging of the products is from lines to color blocks. It should be very clear and unambiguous.

2. Is the steel stamp clear:

Each bearing product will have its brand name, label, 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 pressed before heat treatment. Therefore, although the font is small, it is deeply concave and very clear. Normally, the fonts of counterfeit products are not only blurred. Due to the rough printing technology, the fonts float on the surface, and some of them can even be easily erased by hand or have serious manual marks.

3. Is there any noise:

Hold the inner sleeve of the bearing with your left hand, and turn the sleeve with your right hand to make it rotate slightly. Listen for noise during the operation of the bearing. Due to the backward production conditions of most counterfeit products, it is completely manual workshop operation. During the production process, the bearing body will inevitably be mixed with impurities such as dust and sand. Therefore, noise or unsmooth operation will occur when the bearing rotates. . This is the key to judging whether the product comes from a regular manufacturer's brand product that has strict production standards and is operated by machines.

3. Whether there are turbid oil marks on the surface:

Whether there are turbid oil stains on the surface, this requires us to pay special attention when buying imported bearings. Since there is still a certain gap between the domestic anti-rust technology and foreign advanced manufacturing countries, it is easy to leave thick oil stains when the bearing body is rust-proofed, and it feels sticky and sticky when touched by hand, while foreign original There is almost no trace of anti-rust oil on the imported bearings. According to industry insiders, particularly careful people can smell a special smell on imported bearings, which is the smell of anti-rust oil.

4. Is the chamfer uniform:

The so-called chamfer of the square bearing is the junction of the horizontal and vertical planes. Due to the limitation of production technology, the counterfeit bearing products can not be handled satisfactorily at these corners and corners. We can Easy to distinguish.

5. Bearing packaging:

The packaging is divided into inner packaging and outer packaging. After the bearings are manufactured and passed the inspection, they will be cleaned and anti-rust treated, and then placed in the inner packaging to achieve waterproof, moisture-proof, dust-proof, shock-proof, and maintain the quality and accuracy of the bearing And the purpose of facilitating use and sales.

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