NSK 581/572
Inch Series Tapered Roller Bearings
(BRAND)：NSK
(Availability)：In Stock
Designations
581/572
Boundary Dimensions
d
80.962
mm
Bore diameter
D
139.992
mm
Outside diameter
T
36.512
mm
Total width
B
36.098
mm
Width of inner ring
C
28.575
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
215000
N
Basic dynamic load rating
C0r
260000
N
Basic static load rating
Speeds
Grease
2600
min-1
Grease lubrication
Oil (Oil-bath)
3400
min-1
Oil-bath lubrication
a
31.1
mm
Effective load center
Dimensions
da
96
mm
Diameter of shaft abutment
Da
125
mm
Diameter of housing abutment
db
90
mm
Diameter of shaft abutment
Db
133
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
