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NAO20X35X17 Needle roller bearings with machined rings, with an inner ring

Short Description:

Needle roller bearings are used when the load carrying capacity or accuracy of drawn cup needle roller bearings with open ends is no longer sufficient and the high load capacity of cylindrical roller bearings is not yet required.
Needle roller bearings place lower requirements on the dimensional accuracy, geometrical accuracy and hardness of the adjacent construction than needle roller bearings with open ends and with closed end.


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Features of NAO20X35X17 Needle roller bearings with machined rings, with an inner ring

1.Low cross section
In applications where less space is available, needle roller bearings offer a very compact solution

2.High load carrying capacity
Despite their low cross sectional height, they have a high load carrying capacity.

3.Separable design
The possibility of assembling inner and outer rings separately permits interference fits for shaft and housing and also enables easy maintenance inspections.

4.High stiffness
Owing to their large number of small-diameter rollers, needle roller bearings with machined rings have high stiffness.
5.Accommodate axial displacement
Needle roller bearings with machined rings can accommodate axial displacement. When using raceways on the shaft, the displacement distance is not limited by the bearing.

NAO20X35X17 Needle roller bearings with machined rings  detail Specifications

Material:52100 Chrome Steel
Series:With Inner Ring
Construction:Single Row
Seal Type:Open type
Limiting Speed:18100 rpm
Packing:Industrial packing and single box packing
Weight:0.076 kg

NAO20X35X17 Needle roller bearing

Main Dimensions
Bore diameter(d):20mm
Outer diameter(D): 35mm
Width(B): 17mm
Raceway diameter inner ring(F):25mm
Raceway diameter outer ring(E):29mm
Chamfer dimension outer ring (r) min.:0.3mm
Permissible axial displacement from the normal position of one bearing ring relative to the other(s):0.5mm
Dynamic load ratings(Cr): 14.9KN
Static load ratings(Cor): 26KN

ABUTMENT DIMENSIONS
Smallest permissible abutment diameter shaft, bearings without flanges(da):28.4 mm
Smallest permissible abutment diameter shaft, bearings without flanges(db):24.5 mm
Abutment diameter housing (without flanges)(Da):29.5mm
Smallest permissible abutment diameter housing, bearings without flanges(Db):25.6 mm
Fillet radius(ra)max.:0.3 mm


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