NSK NNU4988K
Double-Row Cylindrical Roller Bearings
(BRAND)：NSK
(Availability)：In Stock
Designations
NNU4988K
Boundary Dimensions
NNU: Outer ring rib type
Bearing Type
d
440
mm
Bore diameter
D
600
mm
Outside diameter
B
160
mm
Width
r(min.)
4
mm
Chamfer Dimension
Basic Load Ratings
Cr
2370
kN
Basic Dynamic Load Rating
C0r
6000
kN
Basic Static Load Rating
Speeds
Grease
1100
min-1
Limiting Speed
Oil (Oil-air)
1400
min-1
Limiting Speed
Dimensions
Ew
487
mm
Roller Circumscribed Circle Diameters
s
3.3
mm
Axial Displacement
Abutment and Fillet Dimensions
da(min.)
456
mm
Diameter of Shaft Abutment
d1a(min.)
469
mm
Diameter of Shaft Abutment
Da(max.)
584
mm
Diameter of Housing Abutment
ra(max.)
3
mm
Radius of Shaft or Housing Fillet
