NSK 24780/24721
Inch Series Tapered Roller Bearings
(BRAND)：NSK
(Availability)：In Stock
Designations
24780/24721
Boundary Dimensions
d
41.275
mm
Bore diameter
D
76.2
mm
Outside diameter
T
25.4
mm
Total width
B
23.02
mm
Width of inner ring
C
20.638
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
81000
N
Basic dynamic load rating
C0r
82000
N
Basic static load rating
Speeds
Grease
4800
min-1
Grease lubrication
Oil (Oil-bath)
6700
min-1
Oil-bath lubrication
a
20.2
mm
Effective load center
Dimensions
da
54
mm
Diameter of shaft abutment
Da
66
mm
Diameter of housing abutment
db
47
mm
Diameter of shaft abutment
Db
72
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
