NSK NNU4921MBKR
Double-Row Cylindrical Roller Bearings
(BRAND)：NSK
(Availability)：In Stock
Designations
NNU4921MBKR
Boundary Dimensions
NNU: Outer ring rib type
Bearing Type
d
105
mm
Bore diameter
D
145
mm
Outside diameter
B
40
mm
Width
r(min.)
1.1
mm
Chamfer Dimension
Basic Load Ratings
Cr
185
kN
Basic Dynamic Load Rating
C0r
315
kN
Basic Static Load Rating
Speeds
Grease
6000
min-1
Limiting Speed
Oil (Oil-air)
7200
min-1
Limiting Speed
Dimensions
Ew
117
mm
Roller Circumscribed Circle Diameters
s
1.2
mm
Axial Displacement
Abutment and Fillet Dimensions
da(min.)
111.5
mm
Diameter of Shaft Abutment
d1a(min.)
113
mm
Diameter of Shaft Abutment
Da(max.)
138.5
mm
Diameter of Housing Abutment
ra(max.)
1
mm
Radius of Shaft or Housing Fillet
