NSK NN4972KR
Double-Row Cylindrical Roller Bearings
(BRAND)：NSK
(Availability)：In Stock
(EMAIL)：info@noksbearings.com
Designations
NN4972KR
Boundary Dimensions
NN: Inner ring rib type
Bearing Type
d
360
mm
Bore diameter
D
480
mm
Outside diameter
B
118
mm
Width
r(min.)
3
mm
Chamfer Dimension
Basic Load Ratings
Cr
1390
kN
Basic Dynamic Load Rating
C0r
3550
kN
Basic Static Load Rating
Speeds
Grease
1600
min-1
Limiting Speed
Oil (Oil-air)
1900
min-1
Limiting Speed
Dimensions
Ew
448
mm
Roller Circumscribed Circle Diameters
s
3.0
mm
Axial Displacement
Abutment and Fillet Dimensions
da(min.)
373
mm
Diameter of Shaft Abutment
d1a(min.)
383
mm
Diameter of Shaft Abutment
Da(min.)
451
mm
Diameter of Housing Abutment
Da(max.)
467
mm
Diameter of Housing Abutment
ra(max.)
2.5
mm
Radius of Shaft or Housing Fillet
