NSK 2690/2631
Inch Series Tapered Roller Bearings
(BRAND)：NSK
(Availability)：In Stock
Designations
2690/2631
Boundary Dimensions
d
29.367
mm
Bore diameter
D
66.421
mm
Outside diameter
T
23.812
mm
Total width
B
25.433
mm
Width of inner ring
C
19.05
mm
Width of outer ring
Cup r (min.)
1.3
mm
Chamfer dimension of outer ring (Cup)
Cone r (min.)
3.5
mm
Chamfer dimension of inner ring (Cone)
Basic Load Ratings
Cr
80000
N
Basic dynamic load rating
C0r
73000
N
Basic static load rating
Speeds
Grease
6000
min-1
Grease lubrication
Oil (Oil-bath)
8000
min-1
Oil-bath lubrication
a
14.3
mm
Effective load center
Dimensions
da
41
mm
Diameter of shaft abutment
Da
58
mm
Diameter of housing abutment
db
35
mm
Diameter of shaft abutment
Db
60
mm
Diameter of housing abutment
ra (max.)
3.5
mm
Radius of shaft or housing fillet of inner ring
ra (max.)
1.3
mm
Radius of shaft or housing fillet of outer ring
