MOUETTE PLASTIC MOLD CO., LTD Needle Roller Cage Assembly K28X36X16

Needle Roller and Cage Assemblies
Apart from full complement needle roller sets, the needle roller and cage assembly is the simplest design of needle roller bearing. Needle roller and cage assemblies are of single or double-row design and comprise a cage and needle rollers. Since their radial section height corresponds directly to the diameter of the needle rollers, needle roller and cage assemblies allow bearing arrangements with the very smallest radial design envelope. If the raceways are produced with high geometrical accuracy, high radial run-out accuracy can be achieved.
Since they do not have an outer ring or inner ring, they run directly on the shaft and in the housing. The shaft and the housing bore must be designed as a rolling bearing raceway. The radial internal clearance is influenced by the shaft and housing tolerances as well as the grade of the needle rollers. Needle roller and cage assemblies must be located axially using snap rings or an appropriate design of the adjacent construction with abutment shoulders.
Needle Roller Cage Assemblies are generally supplied with a machined steel cage or sheet steel cage, bearings identified with the suffix "TN" have an injection molded glass fiber reinforced polyamide 205 cage.
Technical information on Needle roller and cage assemblies:
·are suitable for applications with a very small radial design envelope, where the raceways on the shaft and in the housing are designed as rolling bearing raceways (direct bearing arrangement)
·can support high radial loads
·allow high speeds
·combine the load-carrying capacity advantages of full complement needle roller bearing arrangements with the speed advantages of a cage bearing
·have a high running accuracy
·result in rigid bearing arrangements
·are easy to mount

Single Row Radial Needle Roller And Cage Assemblies
Needle roller and cage assemblies are self-contained, ready-to-mount bearings without inner and outer rings. In applications where the shaft and housing bore can serve as raceways, the assemblies can be used to create bearing arrangements that require minimal radial space. As the clearance of the bearing arrangement is only affected by the roller sorting and the finish of shaft and housing, very precise bearing arrangements can be achieved.
Features and benefits
• Lowest cross section among rolling bearings
In applications where less space is available, needle roller and cage assemblies offer a very compact solution.
• High load carrying capacity
Owing to their large number of rollers, needle roller and cage assemblies have a high load carrying capacity.
• High stiffness
Because of their large number of small-diameter rollers, needle roller and cage assemblies have high stiffness.
• Accommodate axial displacement in both directions