NSK 6455/6420
Inch Series Tapered Roller Bearings
(BRAND)：NSK
(Availability)：In Stock
Designations
6455/6420
Boundary Dimensions
d
57.15
mm
Bore diameter
D
149.225
mm
Outside diameter
T
53.975
mm
Total width
B
54.229
mm
Width of inner ring
C
44.45
mm
Width of outer ring
Cup r (min.)
3.3
mm
Chamfer dimension of outer ring (Cup)
Cone r (min.)
3.5
mm
Chamfer dimension of inner ring (Cone)
Basic Load Ratings
Cr
335000
N
Basic dynamic load rating
C0r
385000
N
Basic static load rating
Speeds
Grease
2600
min-1
Grease lubrication
Oil (Oil-bath)
3400
min-1
Oil-bath lubrication
a
39
mm
Effective load center
Dimensions
da
81
mm
Diameter of shaft abutment
Da
129
mm
Diameter of housing abutment
db
75
mm
Diameter of shaft abutment
Db
140
mm
Diameter of housing abutment
ra (max.)
3.5
mm
Radius of shaft or housing fillet of inner ring
ra (max.)
3.3
mm
Radius of shaft or housing fillet of outer ring
