NSK NN4988
Double-Row Cylindrical Roller Bearings
(BRAND)：NSK
(Availability)：In Stock
Designations
NN4988
Boundary Dimensions
NN: Inner 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
559
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(min.)
562
mm
Diameter of Housing Abutment
Da(max.)
584
mm
Diameter of Housing Abutment
ra(max.)
3
mm
Radius of Shaft or Housing Fillet
