NSK NF256M
Single-Row Cylindrical Roller Bearings
(BRAND)：NSK
(Availability)：In Stock
(EMAIL)：info@noksbearings.com
Designations
NF256M
Boundary Dimensions
d
280
mm
Bore diameter
D
500
mm
Outside diameter
B
80
mm
Width
EW
440
mm
Raceway diameter of outer ring
r (min.)
5
mm
Chamfer dimension
r1 (min.)
5
mm
Chamfer dimension
Basic Load Ratings
Cr
1410000
N
Basic dynamic load rating
C0r
1680000
N
Basic static load rating
Speeds
Thermal Speed Rating (Oil-bath)
1300
min-1
Oil-bath lubrication subject to conditions outlined in ISO 15312
Grease
1100
min-1
Grease lubrication
Oil (Oil-bath)
1400
min-1
Oil-bath lubrication
da (min.)
300
mm
Diameter of shaft abutment
Db (min.)
448
mm
Diameter of housing abutment
Da (max.)
480
mm
Diameter of housing abutment
Db (max.)
480
mm
Diameter of housing abutment
ra (max.)
4
mm
Radius of shaft or housing fillet
rb (max.)
4
mm
Radius of shaft or housing fillet
Abutment and Fillet Dimensions
Mass approx.
71.4
kg
Mass approx.
