NKXR 20 ZCombined needle roller / cylindrical roller thrust bearing with a cover

SKU: NKXR 20 ZCombined needle roller / cylindrical roller thrust bearing with a cover

These bearings consist of a radial needle roller bearing combined with a cylindrical roller thrust bearing. Together they can accommodate both radial loads and axial loads in one direction. Their low cross-sectional height makes the bearings particularly suitable for applications where other types of locating bearing arrangements occupy too much space. The thrust part is capped with a cover that forms a gap-type seal to retain the grease in the bearings.

ID:185893

Dimensions - NKXR 20 Z

Dimensions

Fw
20 mm
Diameter under rollers
D
30 mm
Outside diameter
C
30 mm
Width
C1
10 mm
Width of thrust part
C1
10.5 mm
Distance side face to lubrication hole
d
20 mm
Bore diameter of thrust part
D2
36.2 mm
Diameter of stamped steel cover
r1,2
min. 0.3 mm
Chamfer dimension

 

Abutment dimensions - NKXR 20 Z

Abutment dimensions

da
min. 30.7 mm
Diameter of shaft abutment
ra
max. 0.3 mm
Radius of fillet
rb
max. 0.3 mm
Radius of fillet
di
17 mm
Bore diameter of associated inner ring
F
20 mm
Diameter of inner ring raceway
Bi
20 mm
Width of associated inner ring

 

Calculation data

Basic dynamic load rating, radial C
16.5 kN
Basic static load rating, radial C0
25.5 kN
Basic dynamic load rating, axial C
18.6 kN
Basic static load rating, axial C0
48 kN
Fatigue load limit, radial Pu
3.05 kN
Fatigue load limit, axial Pu
4.65 kN
Minimum axial load factor A
0.000184
Reference speed
3 800 r/min
Limiting speed
7 500 r/min

 

Mass

Mass
0.084 kg

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