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The difference between ball bearings and roller bearings

Update:28-05-2021
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At present, there are two major camps in the automotive […]

At present, there are two major camps in the automotive bearing market. One is the roller bearings that people use the most (such as Huizhong's products), and the other is double row angular contact ball bearings (such as SKF, FAG) and many other foreign bearing companies. Automotive bearings.

 

In fact, most foreign automobile bearings are mainly double-row angular contact ball bearings, while most domestic roller bearings are used. The most fundamental reason is that after Volkswagen entered the Chinese market, it found that the domestic road conditions were not good, which affected the bearing’s development. The service life is the choice of roller bearings.
So what are ball bearings better? Or roller bearings?

Let's analyze their advantages and disadvantages:
Ball bearings, low starting friction coefficient, stable high-speed driving, flexible steering. The disadvantage is that it is not resistant to impact and is not suitable for complex road conditions.

Column bearing, bearing load is linear contact (different from ball bearing point contact), strong impact resistance, strong road adaptability Therefore, Volkswagen has the reputation of running the world. But what is obvious is the lag caused by starting and sliding, which inevitably makes people who are more sensitive to manipulation feel dissatisfied. There is also an increase in fuel consumption, although these are difficult to detect.

 

It is recommended that in some large and medium-sized cities in China, ball bearings should be used when the road conditions are satisfactory. But pay attention to the selection of ball bearings must use forged bearings.

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