At present, with the rapid economic development, we all know that the use of needle roller bearings plays a very important role in our lives and is also an indispensable part of our lives. We use more and more equipment in production activities. We all know that equipment used in all walks of life is being updated. If we do not keep up with market development trends, it is likely to be eliminated. So what are needle roller bearings? What are the advantages of precision needle roller bearings?
Needle roller bearings are equipped with thin and long rollers (the length of the roller is 3 to 10 times the diameter, and the diameter is generally not more than 5mm), so the radial structure is compact, and its inner diameter and load capacity are the same as other types of bearings. The smallest diameter, is especially suitable for bearing results with limited radial installation size. Depending on the application, a bearing without an inner ring or a needle roller and cage assembly can be selected. At this time, the surface of the journal and the surface of the housing hole matched with the bearing are directly used as the inner and outer rolling surfaces of the bearing. In order to ensure the load capacity and running performance As with the bearing with ring, the hardness, machining accuracy and surface quality of the raceway surface of the shaft or housing hole should be similar to the raceway of the bearing ring. This type of bearing can only bear radial loads. In terms of its function, it should be support, but this is only a part of its function. Support is actually able to bear radial loads. It can also be understood that it is used to fix the shaft. It is to fix the shaft so that it can only rotate, and control its axial and radial movement.
In VXO roller bearing company, Needle roller bearings are roller bearings with cylindrical rollers that are thin and long relative to their diameter. Such rollers are called needle rollers. When its inner diameter and load capacity are the same as other types of bearings, the outer diameter is the smallest, which is especially suitable for supporting structures with limited radial installation dimensions.
Needle roller bearings are suitable for places with large load requirements and small space size, but because the needle rollers are in line contact, the friction coefficient is larger than that of plane thrust ball bearings. Needle roller bearings are usually evenly arranged between the two rings for rolling motion with the help of cages. The shape, size and quantity directly affect the load capacity and performance of the bearing. Needle roller bearings are suitable for use in small spaces. In addition, because of their relatively high lubricant capacity, light weight and high rigidity, they can be used in severe working conditions: such as high speed, impact load, etc., so use scope is very broad.
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