NSK 28985/28921
Inch Series Tapered Roller Bearings
(BRAND)：NSK
(Availability)：In Stock
Designations
28985/28921
Boundary Dimensions
d
60.325
mm
Bore diameter
D
100
mm
Outside diameter
T
25.4
mm
Total width
B
25.4
mm
Width of inner ring
C
19.845
mm
Width of outer ring
Cup r (min.)
3.3
mm
Chamfer dimension of outer ring (Cup)
Cone r (min.)
3.5
mm
Chamfer dimension of inner ring (Cone)
Basic Load Ratings
Cr
112000
N
Basic dynamic load rating
C0r
135000
N
Basic static load rating
Speeds
Grease
3400
min-1
Grease lubrication
Oil (Oil-bath)
4800
min-1
Oil-bath lubrication
a
22.9
mm
Effective load center
Dimensions
da
73
mm
Diameter of shaft abutment
Da
89
mm
Diameter of housing abutment
db
67
mm
Diameter of shaft abutment
Db
96
mm
Diameter of housing abutment
ra (max.)
3.5
mm
Radius of shaft or housing fillet of inner ring
ra (max.)
3.3
mm
Radius of shaft or housing fillet of outer ring
