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Round head needle roller
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Bearing classification and application range of needle roller manufacturer

2020-02-19 10:22:40

Bearing needle manufacturer's bearing is composed of ferrule, needle and retaining frame. For the same bearing capacity, the cross-section specification of cylindrical roller bearing is the least. It is suitable for places with high speed, large load and small space in rolling bearing room. Cylindrical roller bearing, also known as needle roller bearing, looks long and thin. The two sides of the needle are round, tapered and concave.

Common cylindrical roller bearings have the following types of Construction:

(1) Cylindrical roller bearing on the outside of stamping die

There are two types of bearings made by this kind of needle rolling manufacturers: the broken hole type and the sealed type. The cylindrical roller bearing outside the stamping die has no inner hole, and the needle immediately touches the surface of the shaft. Therefore, the production and processing precision and heat treatment process of the shaft should be the same as that of the inner hole of the rolling bearing. The cylindrical roller bearing on the outside of the stamping die with cage is suitable for high speed and light load, and is mostly used for the transmission or textile equipment of CNC lathe, automobile and motorcycle. The cylindrical roller bearing of punching die ferrule without cage is suitable for shaking under heavy load because it is full of needles. For example, the sound card frame of the airport, the bearing end cover of the main wing of the cruise missile, etc.

(2) Solid line ferrule cylindrical roller bearing

The cylindrical roller bearing of solid line ferrule is NB type and RNB type. Solid line ferrule cylindrical roller bearing is mostly used in CNC lathe and automobile transmission. Its advantages are small axial cross-section specification and large bearing axial load. The basic type of solid line ferrule cylindrical roller bearing often has a cage, so the rotation speed is relatively high, which can be integrated into the provisions of CNC lathe and automobile transmission.

(3) Forming cylindrical roller bearing

The bearing made up of guide rail needle roller manufacturer is the combination of solid line ferrule cylindrical roller bearing, ball bearing and roller bearing.

(4) Needle roller and cage components

Needle roller and cage parts, in fact, are cylindrical roller bearings without ferrules, which are mostly used for the size end of the crankshaft of transmission, motorcycle and automobile. Because of the high temperature in the cylinder, the rolling bearing should be resistant to heat.




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