NSK NF221M
Single-Row Cylindrical Roller Bearings
(BRAND)：NSK
(Availability)：In Stock
Designations
NF221M
Boundary Dimensions
d
105
mm
Bore diameter
D
190
mm
Outside diameter
B
36
mm
Width
EW
168.8
mm
Raceway diameter of outer ring
r (min.)
2.1
mm
Chamfer dimension
r1 (min.)
2.1
mm
Chamfer dimension
Basic Load Ratings
Cr
247000
N
Basic dynamic load rating
C0r
241000
N
Basic static load rating
Speeds
Thermal Speed Rating (Oil-bath)
4500
min-1
Oil-bath lubrication subject to conditions outlined in ISO 15312
Grease
3400
min-1
Grease lubrication
Oil (Oil-bath)
4000
min-1
Oil-bath lubrication
da (min.)
116
mm
Diameter of shaft abutment
Db (min.)
173
mm
Diameter of housing abutment
Da (max.)
179
mm
Diameter of housing abutment
Db (max.)
179
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.
4.56
kg
Mass approx.
