The structure of stainless steel needle bearing has various forms and the scope of application is also different as follows.

Stamped outer ring stainless steel needle bearing

a. This kind of bearing has two kinds of perforated type and sealed type, stamping outer ring needle roller bearing has no inner ring.

Needle roller bearing without inner ring, direct contact with the surface of the shaft, so the shaft processing accuracy and heat treatment hardness should be the same as the inner ring of the bearing.

b. Application: Drawn cup needle roller bearings with cage are suitable for high speed and heavy load, mostly used in machine tools, automobiles, motorcycle gearboxes or textile machinery.

c. Drawn cup needle roller bearings without cage are suitable for oscillating working conditions under heavy load because they are filled with needle rollers. Such as the frame of the aircraft, the shaft end of the main wing of the missile, etc.

2. solid sleeve needle roller bearings. The commonly used solid collar needle roller bearings are type NA and type RNA.

a. Scope of application: mostly used in machine tools, automobile gearboxes, its advantage is the small radial cross-section size, bearing radial load.

b. Standard solid ring needle bearing have cage, so the speed is higher, can adapt to the requirements of machine tools, gearboxes.

3. roller stainless steel needle bearing

a. The scope of application is printing machinery, grazing machinery, agricultural machinery, CNC equipment guide with roller, conveyor line, etc.

4. Needle roller and cage assembly.

a. Needle roller and cage assembly is actually needle roller bearing without collar, scope of application: mostly used in cars, motorcycles, connecting rod big and small end.

b. As the temperature in the air box rises, so the bearing should be resistant to high temperature.