NSK 25578/25523
Inch Series Tapered Roller Bearings
(BRAND)：NSK
(Availability)：In Stock
Designations
25578/25523
Boundary Dimensions
d
42.862
mm
Bore diameter
D
82.931
mm
Outside diameter
T
26.988
mm
Total width
B
25.4
mm
Width of inner ring
C
22.225
mm
Width of outer ring
Cup r (min.)
2.3
mm
Chamfer dimension of outer ring (Cup)
Cone r (min.)
2.3
mm
Chamfer dimension of inner ring (Cone)
Basic Load Ratings
Cr
94000
N
Basic dynamic load rating
C0r
99000
N
Basic static load rating
Speeds
Grease
4500
min-1
Grease lubrication
Oil (Oil-bath)
6000
min-1
Oil-bath lubrication
a
20.8
mm
Effective load center
Dimensions
da
53
mm
Diameter of shaft abutment
Da
72
mm
Diameter of housing abutment
db
49.5
mm
Diameter of shaft abutment
Db
77
mm
Diameter of housing abutment
ra (max.)
2.3
mm
Radius of shaft or housing fillet of inner ring
ra (max.)
2.3
mm
Radius of shaft or housing fillet of outer ring
