NSK NJ304ET7
Single-Row Cylindrical Roller Bearings
(BRAND)：NSK
(Availability)：In Stock
(EMAIL)：info@noksbearings.com
Designations
NJ304ET7
Boundary Dimensions
d
20
mm
Bore diameter
D
52
mm
Outside diameter
B
15
mm
Width
FW
27.5
mm
Raceway diameter of inner ring
r (min.)
1.1
mm
Chamfer dimension
r1 (min.)
0.6
mm
Chamfer dimension
Basic Load Ratings
Cr
39000
N
Basic dynamic load rating
C0r
26900
N
Basic static load rating
Speeds
Thermal Speed Rating (Oil-bath)
13000
min-1
Oil-bath lubrication subject to conditions outlined in ISO 15312
Mechanical (forced-circulation oil)
18000
min-1
Properly designed and controlled forced-circulation oil lubrication
Grease
12000
min-1
Grease lubrication
Oil (Oil-bath)
15000
min-1
Oil-bath lubrication
db (min.)
24
mm
Diameter of shaft / spacer sleeve abutment
db (max.)
26
mm
Diameter of shaft / spacer sleeve abutment
dd (min.)
33
mm
Diameter of shaft abutment
Da (max.)
45.5
mm
Diameter of housing abutment
ra (max.)
1
mm
Radius of shaft or housing fillet
Abutment and Fillet Dimensions
Mass approx.
0.15
kg
Mass approx.
