NSK NJ321EM
Single-Row Cylindrical Roller Bearings
(BRAND)：NSK
(Availability)：In Stock
Designations
NJ321EM
Boundary Dimensions
d
105
mm
Bore diameter
D
225
mm
Outside diameter
B
49
mm
Width
FW
133
mm
Raceway diameter of inner ring
r (min.)
3
mm
Chamfer dimension
r1 (min.)
3
mm
Chamfer dimension
Basic Load Ratings
Cr
525000
N
Basic dynamic load rating
C0r
480000
N
Basic static load rating
Speeds
Thermal Speed Rating (Oil-bath)
3400
min-1
Oil-bath lubrication subject to conditions outlined in ISO 15312
Mechanical (forced-circulation oil)
5300
min-1
Properly designed and controlled forced-circulation oil lubrication
Grease
2600
min-1
Grease lubrication
Oil (Oil-bath)
3200
min-1
Oil-bath lubrication
db (min.)
118
mm
Diameter of shaft / spacer sleeve abutment
db (max.)
129
mm
Diameter of shaft / spacer sleeve abutment
dd (min.)
149
mm
Diameter of shaft abutment
Da (max.)
212
mm
Diameter of housing abutment
ra (max.)
2.5
mm
Radius of shaft or housing fillet
Abutment and Fillet Dimensions
Mass approx.
9.95
kg
Mass approx.
