NSK 1280/1220
Inch Series Tapered Roller Bearings
(BRAND)：NSK
(Availability)：In Stock
(EMAIL)：info@noksbearings.com
Designations
1280/1220
Boundary Dimensions
d
22.225
mm
Bore diameter
D
57.15
mm
Outside diameter
T
22.225
mm
Total width
B
22.225
mm
Width of inner ring
C
17.462
mm
Width of outer ring
Cup r (min.)
1.5
mm
Chamfer dimension of outer ring (Cup)
Cone r (min.)
0.8
mm
Chamfer dimension of inner ring (Cone)
Basic Load Ratings
Cr
53000
N
Basic dynamic load rating
C0r
44000
N
Basic static load rating
Speeds
Grease
7100
min-1
Grease lubrication
Oil (Oil-bath)
9500
min-1
Oil-bath lubrication
a
15.1
mm
Effective load center
Dimensions
da
29.5
mm
Diameter of shaft abutment
Da
49
mm
Diameter of housing abutment
db
29
mm
Diameter of shaft abutment
Db
52
mm
Diameter of housing abutment
ra (max.)
0.8
mm
Radius of shaft or housing fillet of inner ring
ra (max.)
1.5
mm
Radius of shaft or housing fillet of outer ring
