NSK 28138/28315
Inch Series Tapered Roller Bearings
(BRAND)：NSK
(Availability)：In Stock
Designations
28138/28315
Boundary Dimensions
d
34.976
mm
Bore diameter
D
80
mm
Outside diameter
T
21.006
mm
Total width
B
20.94
mm
Width of inner ring
C
15.875
mm
Width of outer ring
Cup r (min.)
1.5
mm
Chamfer dimension of outer ring (Cup)
Cone r (min.)
1.5
mm
Chamfer dimension of inner ring (Cone)
Basic Load Ratings
Cr
69500
N
Basic dynamic load rating
C0r
64500
N
Basic static load rating
Speeds
Grease
5000
min-1
Grease lubrication
Oil (Oil-bath)
6700
min-1
Oil-bath lubrication
a
16
mm
Effective load center
Dimensions
da
43.5
mm
Diameter of shaft abutment
Da
69
mm
Diameter of housing abutment
db
41
mm
Diameter of shaft abutment
Db
73
mm
Diameter of housing abutment
ra (max.)
1.5
mm
Radius of shaft or housing fillet of inner ring
ra (max.)
1.5
mm
Radius of shaft or housing fillet of outer ring
