Needle roller bearing is roller bearing with cylindrical rollers that are thin and long relative to their diameter.

Features:

Needle roller bearings have a large load-carrying capacity and are suitable for support structures with limited installation dimensions.

Application:

(1) Drawn cup needle roller bearings: needle roller bearings with drawn outer ring with cage are suitable for high speed and heavy load, and are mostly used in gearboxes of machine tools, automobiles, motorcycles or textile machinery. Cageless drawn ferrule needle roller bearings are suitable for oscillating working conditions under heavy loads due to their full needle rollers. Such as the frame of the aircraft, the shaft end of the main wing of the missile, etc.

(2) Solid ring needle roller bearings Commonly used solid ring needle roller bearings are NA type and RNA type. Scope of application: mostly used in machine tools, automobile transmissions.

(3) Scope of application of roller needle roller bearings: rollers and conveyor lines for printing machinery, forage machinery, agricultural machinery, and CNC equipment guide rails.

(4) Needle roller and cage assembly. Needle roller and cage assemblies are actually needle roller bearings without ferrules. Scope of application: This kind of bearing is mostly used for large and small ends of connecting rods of gearboxes, motorcycles and automobiles. Since the temperature in the cylinder rises, the bearing must be resistant to high temperature.