The importance of radial bearing
According to the different rolling elements, the radial bearing have roller bearings and ball bearings two kinds. So why do we use radial ball bearings? First of all, no matter what type of bearing, its main function is to reduce the friction coefficient. Then since they have the same function, we must choose the bearing according to the requirements of the mechanical equipment. Which one to choose between ball bearing and roller bearing?
How to select radial bearing?
1. Speed: If your equipment is running at high speed, it is recommended that you choose ball bearings. In the same structure and size, the speed of ball bearings is higher.
Such as deep groove ball bearing 6203 and cylindrical roller bearing NU203. At the same size of 17x40x12mm, the rotate speed of 6203 bearings can reach 15000R/min. The rotate speed of roller bearing NU203 can only arrived 12000r/min. But compared to the bearing capacity, ball bearings are much inferior. Take the roller bearing NU205E and the ball bearing 6205 as an example. Under the same size of 25x52x15mm, the bearing capacity of the NU205 bearing is 48KN. While the bearing capacity of the deep groove ball bearing 6205 2RS is only 15KN.
2. Weight and precision: The weight and precision of ball bearings are not high in the manufacturing process. But the manufacturing process of roller bearings is more complicated and the cost is relatively high. Therefore, when your equipment does not require high speed and bearing capacity. it is recommended that you choose the radila ball bearings, such as deep groove ball, self-aligning ball, thrust ball, and other radial bearings. For example, agricultural harvesters, sewage treatment plant equipment, etc.
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