What are the characteristics of the roller needle bearing?
Roller needle roller bearing, outer ring wall thickness, needle roller busbar with convexity, the raceway surface of stud bolt is hardened, has certain toughness, and can withstand impact load. Deeply loved by consumers, the next step is to take a deeper look at the characteristics of the roller needle bearing.
Roller needle bearing features:
1. High speed 2. Can withstand high radial load (larger radial load than other bearings with the same radial size) 3. Can not withstand axial load 4, high rigidity
The definition and origin of the roller needle bearing
The contour of the roller needle is slightly contracted at the proximal end. Roller needle roller and raceway line contact correction results can be roller needle bearing
Avoid damaging edge stresses. The support roller roller needle roller bearing is a thick-walled outer ring, which is quenched by high temperature and high nitrogen. The high precision sorting roller is guided by the rib of the high rigidity outer ring. With the linear contact, the roller can be easily rotated directly on the raceway, and Can withstand huge loads. In order to remove the stress, the outer ring of the supporting roller adopts a curved surface design, and the curved roller has various specifications such as single and double sealing rings, no sealing ring and sealing ring.
Roller needle roller bearings are equipped with thin and long rollers (the length of the roller is 3~10 times the diameter and the diameter is generally not more than 5mm), so the radial structure is compact, and the inner diameter and load capacity are the same as other types of bearings. The smallest outer diameter is especially suitable for support results with limited radial mounting dimensions. Depending on the application, the inner ringless bearing or roller needle roller and cage assembly can be used. The journal surface and the housing hole surface matched with the bearing directly serve as the inner and outer rolling surfaces of the bearing to ensure the load capacity and operation. The performance is the same as that of the ferrule bearing. The hardness of the shaft or shell hole raceway surface, machining accuracy and surface quality should be similar to the raceway of the bearing ring. This type of bearing can only withstand radial loads.