Basic Info.
Model NO.: NKI60/25,NA4912,NA6912,NKIS60
 
Rolling Body:Roller Bearings
The Number of Rows:Single
 
Outer Dimension:10-190mm
Material:Bearing Steel
 
Spherical:Non-Aligning Bearings
Load Direction:Radial Bearing
 
Separated:Unseparated
Inner Diameter:5mm
 
Outer Diameter:10mm
Height:10mm
 
Weight:2.9g
Original Code:Non
 
Application:Gear Box,Printing Machinery,Other Machinery
Export Markets:Global
Additional Info.
Trademark:IKC
 
Packing:Single Packing
Standard:SGS
 
Origin:Jiangsu, China
HS Code:84821020
 
Production Capacity:1000, 000PCS/Month
Product Description
Needle bearings have a large surface area that is in contact with the bearing outer surfaces. Additionally there is less added clearance so they are much more compact. The typical structure consists of a needle cage which orients and contains the needle rollers, the needle rollers themselves, and an outer race and sometimes housing itself. Radial needle bearings are cylindrical and use rollers parallel to the axis of the shaft. Thrust needle bearings are flat and use a radial pattern of needles. Full compliment bearings have solid inner and outer rings and rib-guided cylindrical rollers.
 
Main products
Light series needle roller bearings (NK,NKI,NKS,NKIS) 
Heavy series needle roller bearings (NA,RNA,RNA-RS,RNA-2RS) 
Curve needle rollers (KR,CF,CR,CNBH) 
Strut needle rollers (NART,NUTR,CCYR,STO,RSTO,NAST-ZZ) 
Not obstructs side needle roller bearings(NAO,RNAO) 
Needle roller-thrust ball bearings (NX,NX-Z,NKX,NKX-Z) 
Needle roller-thrust cylindrical bearings (NKXR,NKXR-Z) 
Radial needle roller-thrust cylindrical needle roller bearings (ZARN) 
Thrust-cylindrical needle roller bearings (811,812,WS,GS) 
Needle rollers and cages (K,KR,KS,KBK,KZK) 
Drawn cup needle roller clutches and assemblies (HF,HFL)
 
Specifications
Solid collor needle roller bearing NA NKI series 
1.Material:GCr15,high precision,long life 
2.Best price and Welcome OEM orders
Solid collor needle roller bearing with inner ring NA NKI series
 
We supply all size NKI NA series needle bearing as best price on good quality.


The needle roller bearing without inner ring is suitbale for the parts of which the radial size is limited.
Beacuse of no inner ring,the surface os shaft journal fitted with it is acted directly as rolling surface.It is requested that the surface hardness be no less than HRC60,surface roughness,no more tahn 0.63um.This kind of bearing does not limmit the axial shift and housing and has high limiting rotational speed.

The inner ring has no shoulder in this bearing.For this purpose,the inner ring,outer ring,copleteset of needles and cage can be mounted respectively.This bearing does not limit the axial shift os shaft and outer housing.Since the cage separates the needles so as to reduce friction.It can be used for the partswith high rotational speed.


Model RNAS,NK needle roller bearings withour inner ring
Model NA,NKI needle roller bearings with inner ring



TN = plastic safety frame, allowing operating temperature: 120 ºC continuous, 150 ºC temporarily, 180 ºC short-lasting. 1) For grease lubrication, the allowable value tabulated values of 60%. + There are stalls circle, no oil holes and grooves, oil holes and grooves as when required, the need to increase ASR1 on the bearing code.