How To Select The Manufacturer Of Stainless Steel Bearing Pedestal
How To Select The Manufacturer Of Stainless Steel Bearing Pedestal
2021年12月9日
Structural Performance Characteristics Of Five Commonly Used Types Of Bearings
Structural Performance Characteristics Of Five Commonly Used Types Of Bearings
2021年12月9日

Five Distinguishing Skills Of Automobile Bearing

Imported bearings are generally used in automobile bearings, so now imported automobile bearings are still very good and of good quality. Domestic automobile bearings are relatively cheaper. Many imported bearings are of good quality, such as NSK imported bearings, FAG imported bearings and SKF imported bearings.

 

It is not too much to call the bearing the joint of an automobile. In a car, not only its four legs – wheels need bearings, but all rotating machine parts need bearings. It is a very insignificant but important thing in the transmission system. Because of the heavy workload and high wear, it is common to replace bearings in automobile maintenance. In the auto parts market, there are many bearing stores operating various brands, but how about the quality of the bearings they sell? Is it true that the factory brand is marked on the package?

 

The following describes several common methods for identifying bearing quality:

1. Is the outer packaging clear

Generally, the brand of Zhengchang has its own special designers to design external packaging, and arrange factories with qualified production conditions for production. Therefore, the packaging is very clear and unambiguous from line to color block.

Five Distinguishing Skills Of Automobile Bearing
2. Whether the steel seal is clear

Brand words, labels, etc. will be printed on the bearing body. The font is very small, but most of the products produced by the factory use steel printing technology, and they are pressed before overheating treatment. Therefore, although the font is small, it is deeply concave and very clear. The font of counterfeit products is not only fuzzy, but also floating on the surface due to the rough printing technology. Some of them can even be easily erased by hand.

 

3. Is there any noise

Hold the bearing inner sleeve with your left hand and rotate the outer sleeve with your right hand to listen for any noise. Due to the backward production conditions of most counterfeit products and complete manual workshop operation, impurities such as sand will inevitably be mixed in the production process and hidden in the bearing body, so it will make a noise when rotating. This is a big difference from the factory brand that strictly implements production standards and operates with machines.

 

4. Is there any muddy oil on the surface

This should be paid special attention when purchasing imported bearings. As the current domestic antirust technology is not particularly good, it is easy to leave thick oil traces when antirust the bearing body and stick it on your hand. However, there is almost no trace of antirust oil on the bearings originally imported from abroad. A particularly careful expert says that the imported bearings smell like a smell. It must be antirust oil, but you can’t see it.

 

5. Whether the chamfer is uniform

The so-called bearing chamfer, that is, the junction of horizontal and vertical surfaces. Due to the limitation of production technology, the fake bearings are not handled satisfactorily in these corners.