NSK NU311EW
Single-Row Cylindrical Roller Bearings
(BRAND)：NSK
(Availability)：In Stock
Designations
NU311EW
Boundary Dimensions
d
55
mm
Bore diameter
D
120
mm
Outside diameter
B
29
mm
Width
FW
70.5
mm
Raceway diameter of inner ring
r (min.)
2
mm
Chamfer dimension
r1 (min.)
2
mm
Chamfer dimension
Basic Load Ratings
Cr
169000
N
Basic dynamic load rating
C0r
143000
N
Basic static load rating
Speeds
Thermal Speed Rating (Oil-bath)
6000
min-1
Oil-bath lubrication subject to conditions outlined in ISO 15312
Mechanical (forced-circulation oil)
9000
min-1
Properly designed and controlled forced-circulation oil lubrication
Grease
4500
min-1
Grease lubrication
Oil (Oil-bath)
5600
min-1
Oil-bath lubrication
db (min.)
64
mm
Diameter of shaft / spacer sleeve abutment
db (max.)
68
mm
Diameter of shaft / spacer sleeve abutment
dc (min.)
72
mm
Diameter of shaft abutment
Da (max.)
111
mm
Diameter of housing abutment
ra (max.)
2
mm
Radius of shaft or housing fillet
rb (max.)
2
mm
Radius of shaft or housing fillet
Abutment and Fillet Dimensions
Mass approx.
1463
kg
Mass approx.
