NSK 17887/17831
Inch Series Tapered Roller Bearings
(BRAND)：NSK
(Availability)：In Stock
Designations
17887/17831
Boundary Dimensions
d
45.23
mm
Bore diameter
D
79.985
mm
Outside diameter
T
19.842
mm
Total width
B
20.638
mm
Width of inner ring
C
15.08
mm
Width of outer ring
Cup r (min.)
1.3
mm
Chamfer dimension of outer ring (Cup)
Cone r (min.)
2
mm
Chamfer dimension of inner ring (Cone)
Basic Load Ratings
Cr
76000
N
Basic dynamic load rating
C0r
78500
N
Basic static load rating
Speeds
Grease
4500
min-1
Grease lubrication
Oil (Oil-bath)
6000
min-1
Oil-bath lubrication
a
15.9
mm
Effective load center
Dimensions
da
57
mm
Diameter of shaft abutment
Da
68
mm
Diameter of housing abutment
db
52
mm
Diameter of shaft abutment
Db
74
mm
Diameter of housing abutment
ra (max.)
2
mm
Radius of shaft or housing fillet of inner ring
ra (max.)
1.3
mm
Radius of shaft or housing fillet of outer ring
