NSK N311M
Single-Row Cylindrical Roller Bearings
(BRAND)：NSK
(Availability)：In Stock
Designations
N311M
Boundary Dimensions
d
55
mm
Bore diameter
D
120
mm
Outside diameter
B
29
mm
Width
EW
104.5
mm
Raceway diameter of outer ring
r (min.)
2
mm
Chamfer dimension
r1 (min.)
2
mm
Chamfer dimension
Basic Load Ratings
Cr
136000
N
Basic dynamic load rating
C0r
111000
N
Basic static load rating
Speeds
Thermal Speed Rating (Oil-bath)
6300
min-1
Oil-bath lubrication subject to conditions outlined in ISO 15312
Grease
5000
min-1
Grease lubrication
Oil (Oil-bath)
6300
min-1
Oil-bath lubrication
da (min.)
64
mm
Diameter of shaft abutment
Db (min.)
107
mm
Diameter of housing abutment
Db (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.
1.57
kg
Mass approx.
