NSK NN4980KR
Double-Row Cylindrical Roller Bearings
(BRAND)：NSK
(Availability)：In Stock
(EMAIL)：info@noksbearings.com
Designations
NN4980KR
Boundary Dimensions
NN: Inner ring rib type
Bearing Type
d
400
mm
Bore diameter
D
540
mm
Outside diameter
B
140
mm
Width
r(min.)
4
mm
Chamfer Dimension
Basic Load Ratings
Cr
1940
kN
Basic Dynamic Load Rating
C0r
4900
kN
Basic Static Load Rating
Speeds
Grease
1400
min-1
Limiting Speed
Oil (Oil-air)
1700
min-1
Limiting Speed
Dimensions
Ew
505
mm
Roller Circumscribed Circle Diameters
s
3.5
mm
Axial Displacement
Abutment and Fillet Dimensions
da(min.)
416
mm
Diameter of Shaft Abutment
d1a(min.)
428
mm
Diameter of Shaft Abutment
Da(min.)
508
mm
Diameter of Housing Abutment
Da(max.)
524
mm
Diameter of Housing Abutment
ra(max.)
3
mm
Radius of Shaft or Housing Fillet
