What Are The Characteristics Of Needle Roller Bearings?

- May 02, 2018 -

There are many types of bearings, different bearings have different characteristics, what are the characteristics of needle roller bearings? Can accept higher radial load, higher speed, can not accept axial load, high rigidity.


The needle roller general face is slightly shortened at the proximal face. The results of needle roller and roller line touch correction can be needle roller bearings to prevent destructive marginal stress. Supporting roller needle roller bearing is a thick-walled outer ring, which is quenched by high temperature and high nitrogen. The high-precision roller is guided by the rib of the high-rigidity outer ring. With the linear touch, the roller can be easily changed directly on the raceway, and can Accept huge loads. In order to remove the stress, the outer ring of the support roller is depicted with a curved surface. The curve roller is equipped with single and double sealing rings, no sealing ring, and a sealing ring.

Needle roller bearings are equipped with thin, long rollers. The length of the rollers is three to ten times the diameter and the diameter is usually not more than 5mm. Therefore, the radial layout is compact, and the inner diameter dimension and load can be the same as those of other types of bearings. most. According to different occasions, the bearings or needle roller and cage assembly without inner ring can be used. At the moment, the journal bearing and shell hole appearance matched with the bearing directly serve as the inner and outer roll appearance of the bearing to ensure the load capacity and work performance. As with a bearing with a ring, the hardness of the outer surface of the raceway of the shaft or shell hole, machining accuracy and appearance quality should be similar to the raceway of the bearing ring. This type of bearing can only accept radial loads.


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