Combined needle bearings is a unit consists of radial needle bearing and the component of thrust bearings or angular contact ball bearings, for example, radial needle and thrust ball, or and thrust cylindrical roller, or and angular contact ball.
They’re compact in structure, small in size, and high in running accuracy. They can bear certain radial load at the time of carrying a high axial load. These bearings are widely used in the machine tools, metallurgical machinery, textile machinery and printing machinery.
Needle roller: GCr15, HRC60-65
Inner/Outer ring: GCr15, HRC60-65
Cage: high quality low-carbon steel or reinforced nylon