NSK NU312EM
Single-Row Cylindrical Roller Bearings
(BRAND)：NSK
(Availability)：In Stock
Designations
NU312EM
Boundary Dimensions
d
60
mm
Bore diameter
D
130
mm
Outside diameter
B
31
mm
Width
FW
77
mm
Raceway diameter of inner ring
r (min.)
2.1
mm
Chamfer dimension
r1 (min.)
2.1
mm
Chamfer dimension
Basic Load Ratings
Cr
184000
N
Basic dynamic load rating
C0r
157000
N
Basic static load rating
Speeds
Thermal Speed Rating (Oil-bath)
5600
min-1
Oil-bath lubrication subject to conditions outlined in ISO 15312
Mechanical (forced-circulation oil)
9500
min-1
Properly designed and controlled forced-circulation oil lubrication
Grease
4800
min-1
Grease lubrication
Oil (Oil-bath)
5600
min-1
Oil-bath lubrication
db (min.)
71
mm
Diameter of shaft / spacer sleeve abutment
db (max.)
75
mm
Diameter of shaft / spacer sleeve abutment
dc (min.)
79
mm
Diameter of shaft abutment
Da (max.)
119
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.
2.04
kg
Mass approx.
