NSK 30252
Metric Series Tapered Roller Bearings
(BRAND)：NSK
(Availability)：In Stock
(EMAIL)：info@noksbearings.com
Designations
30252
Boundary Dimensions
d
260
mm
Bore diameter
D
480
mm
Outside diameter
T
89
mm
Total width
B
80
mm
Width of inner ring
C
67
mm
Width of outer ring
Cup r (min.)
5
mm
Chamfer dimension of outer ring (Cup)
Cone r (min.)
6
mm
Chamfer dimension of inner ring (Cone)
Basic Load Ratings
Cr
1460000
N
Basic dynamic load rating
C0r
1700000
N
Basic static load rating
Speeds
Grease
670
min-1
Grease lubrication
Oil (Oil-bath)
900
min-1
Oil-bath lubrication
a
94.5
mm
Effective load center
Dimensions
da (min.)
302
mm
Diameter of shaft abutment
Db (min.)
447
mm
Diameter of housing abutment
Da (min.)
421
mm
Diameter of housing abutment
Da (max.)
458
mm
Diameter of housing abutment
Sa
12
mm
Minimum width of space required in housing on large side face
Sb
22
mm
Minimum width of space required in housing on small side face
db (max.)
316
mm
Diameter of shaft abutment
ra (max.)
5
mm
Radius of shaft or housing fillet of inner ring
ra (max.)
4
mm
Radius of shaft or housing fillet of outer ring
