NSK 1988/1922
Inch Series Tapered Roller Bearings
(BRAND)：NSK
(Availability)：In Stock
(EMAIL)：info@noksbearings.com
Designations
1988/1922
Boundary Dimensions
d
28.575
mm
Bore diameter
D
57.15
mm
Outside diameter
T
19.845
mm
Total width
B
19.355
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.)
3.5
mm
Chamfer dimension of inner ring (Cone)
Basic Load Ratings
Cr
49500
N
Basic dynamic load rating
C0r
44500
N
Basic static load rating
Speeds
Grease
6700
min-1
Grease lubrication
Oil (Oil-bath)
9000
min-1
Oil-bath lubrication
a
13.9
mm
Effective load center
Dimensions
da
39.5
mm
Diameter of shaft abutment
Da
51
mm
Diameter of housing abutment
db
33.5
mm
Diameter of shaft abutment
Db
53.5
mm
Diameter of housing abutment
ra (max.)
3.5
mm
Radius of shaft or housing fillet of inner ring
ra (max.)
1.5
mm
Radius of shaft or housing fillet of outer ring
