NSK NNU4938MBKR
Double-Row Cylindrical Roller Bearings
(BRAND)：NSK
(Availability)：In Stock
Designations
NNU4938MBKR
Boundary Dimensions
NNU: Outer ring rib type
Bearing Type
d
190
mm
Bore diameter
D
260
mm
Outside diameter
B
69
mm
Width
r(min.)
2
mm
Chamfer Dimension
Basic Load Ratings
Cr
555
kN
Basic Dynamic Load Rating
C0r
1060
kN
Basic Static Load Rating
Speeds
Grease
3400
min-1
Limiting Speed
Oil (Oil-air)
4000
min-1
Limiting Speed
Dimensions
Ew
211.5
mm
Roller Circumscribed Circle Diameters
s
1.3
mm
Axial Displacement
Abutment and Fillet Dimensions
da(min.)
199
mm
Diameter of Shaft Abutment
d1a(min.)
203
mm
Diameter of Shaft Abutment
Da(max.)
251
mm
Diameter of Housing Abutment
ra(max.)
2
mm
Radius of Shaft or Housing Fillet
