What are the characteristics of needle roller bearings?

There are many types of bearings. Different bearings have different characteristics. What are the characteristics of needle bearings?

Can accept higher radial load, high speed, can not accept axial load, and high rigidity. The needle generalizing surface is slightly shortened at the proximal end face. Needle roller and raceway touch correction results in needle roller bearings to prevent damaging marginal stresses. The support 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-rigid 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 supporting roller is drawn by a curved surface, and the curved roller has various specifications such as a single sealing ring, a double sealing ring, a sealing ring and a sealing ring.

Needle roller bearings are equipped with thin and long rollers. The length of the rollers is three to ten times the diameter and the diameter is usually not more than 5 mm. Therefore, the radial layout is compact, and the inner diameter scale and load can be the same as other types of bearings. most. Depending on the application, the inner ringless bearing or needle roller and cage assembly can be used. At the moment, the bearing outer surface and the outer casing hole surface directly serve as the inner and outer rolling surfaces of the bearing to ensure the load and work performance. As with ferrule bearings, the hardness, machining accuracy and appearance quality of the shaft or outer casing raceway should be similar to the raceway of the bearing ring. This type of bearing can only accept radial loads.

The type of needle bearing, in addition to the catalogue, can be used for normally engineered bearings, such as open-drawn cup needle roller bearings. There are cage and cageless full needle roller bearings, closed drawn cup needle roller bearings, and without inner ring needle roller bearings / without inner ring without cage needle roller bearings, with inner ring needle roller bearings, SKF can also Supply all types of needle bearings.

No-side needle roller bearings, combined needle/ball bearings, needle roller cage assemblies, self-aligning needle roller bearings, combined needle roller/thrust ball bearings. Combined needle roller/cylindrical roller thrust bearing, drawn cup needle roller bearing. The drawn cup needle roller bearings are needle bearings with a thin stamped outer ring. Its primary feature is that the height of the section is very low and the load can be high. It is primarily used for bearing arrangements where the layout is compact, inexpensive, and the bore of the bearing housing cannot be used as the raceway for the needle roller cage assembly.

The combined needle roller bearing is a bearing unit composed of a combination of a radial needle bearing and a thrust bearing component, and has a compact layout. Moreover, the product layout is diverse, adaptable and easy to install. Combined needle roller bearings are widely used in various mechanical equipment such as machine tools, metallurgical machinery, textile machinery and printing machinery, and can make the mechanical system depicting very compact and flexible.