China excellent quality Needle roller and cage assemblies K28x41x25 with hardened steel cage.

Bearing number : K28X41X25

Brand : Neutral/OEM 

Certification: NSF-ISR/ IATF 16949

Material of Cage: 20# steel

Material of Roller: GCr15 high-carbon chrome steel

Operating Temperature Range； -30℃ to 100℃

Bore Diameter (mm) : 28,000

Outer Diameter (mm) : 41,000

Bearing dimensions and specification :

Fw - 28,000 mm

Ew - 41,000 mm

Bc - 25,000 mm

Weight - 0,20 Kg

The retainer of needle roller and cage assemblies are not drawn cup,which are entity bushed ring cutted from steel tube.

Then,in order to gurantee the concentricity and degree of parallelism, entity bushed ring will be processed by digital lathe.

After that, the ring will be punched to be a cage, the next step is improving the hardness of the cage through heat treatment.

Powerlong needle roller and cage assemblies are self­-contained, ready-­to­-mount bearings. 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.