Q: Where are needle bearings used?

(1) Needle roller bearingswith drawn outer ring. This type of bearing has two types: punched and sealed. The drawn outer ring needle roller bearing has no inner ring. The needle is in direct contact with the surface of the shaft, so the machining accuracy and heat treatment hardness of the shaft should be the same as the bearing inner ring.

Application range: Drawn cup needle roller bearings with cages are suitable for high-speed and heavy-duty bearings. They are mostly used for machine tool, automobile, motorcycle gearbox or textile machinery. Cageless ferrule needle roller bearings without cages are suitable for oscillating working conditions under heavy loads because they are full of needles. Such as the frame of an aircraft, the shaft end of the main wing of a missile, etc.

(2) Needle bearings for solid rings are commonly used needle bearings for solid rings are NA and RNA.

Application range: Solid ring needle bearings are mostly used in machine tools and automotive gearboxes. Its advantages are small radial section size and large radial load. Standard solid ring needle roller bearings have cages, so the rotation speed is high, which can meet the requirements of machine tools and automotive gearboxes.

(3) Roller needle bearings

Application range: printing machinery, forage machinery, agricultural machinery, rollers for NC equipment guide rails, conveyor lines, etc.

(4) Needle roller and cage assembly. Needle roller and cage components are actually needle roller bearings without rings

Application range: This bearing is mostly used for large and small connecting rods of gearboxes, motorcycles and automobiles. Because the temperature inside the cylinder rises, the bearing must be resistant to high temperatures.