NSK 25878/25820
Inch Series Tapered Roller Bearings
(BRAND)：NSK
(Availability)：In Stock
Designations
25878/25820
Boundary Dimensions
d
34.925
mm
Bore diameter
D
73.025
mm
Outside diameter
T
23.812
mm
Total width
B
24.608
mm
Width of inner ring
C
19.05
mm
Width of outer ring
Cup r (min.)
2.3
mm
Chamfer dimension of outer ring (Cup)
Cone r (min.)
3.5
mm
Chamfer dimension of inner ring (Cone)
Basic Load Ratings
Cr
87500
N
Basic dynamic load rating
C0r
86000
N
Basic static load rating
Speeds
Grease
5300
min-1
Grease lubrication
Oil (Oil-bath)
7100
min-1
Oil-bath lubrication
a
15.7
mm
Effective load center
Dimensions
da
47
mm
Diameter of shaft abutment
Da
64
mm
Diameter of housing abutment
db
40.5
mm
Diameter of shaft abutment
Db
68
mm
Diameter of housing abutment
ra (max.)
3.5
mm
Radius of shaft or housing fillet of inner ring
ra (max.)
2.3
mm
Radius of shaft or housing fillet of outer ring
