NSK 30248
Metric Series Tapered Roller Bearings
(BRAND)：NSK
(Availability)：In Stock
(EMAIL)：info@noksbearings.com
Designations
30248
Boundary Dimensions
d
240
mm
Bore diameter
D
440
mm
Outside diameter
T
79
mm
Total width
B
72
mm
Width of inner ring
C
60
mm
Width of outer ring
Cup r (min.)
4
mm
Chamfer dimension of outer ring (Cup)
Cone r (min.)
5
mm
Chamfer dimension of inner ring (Cone)
Basic Load Ratings
Cr
1220000
N
Basic dynamic load rating
C0r
1400000
N
Basic static load rating
Speeds
Grease
750
min-1
Grease lubrication
Oil (Oil-bath)
1000
min-1
Oil-bath lubrication
a
85.1
mm
Effective load center
Dimensions
da (min.)
267
mm
Diameter of shaft abutment
Db (min.)
408
mm
Diameter of housing abutment
Da (min.)
384
mm
Diameter of housing abutment
Da (max.)
422
mm
Diameter of housing abutment
Sa
11
mm
Minimum width of space required in housing on large side face
Sb
19
mm
Minimum width of space required in housing on small side face
db (max.)
288
mm
Diameter of shaft abutment
ra (max.)
4
mm
Radius of shaft or housing fillet of inner ring
ra (max.)
3
mm
Radius of shaft or housing fillet of outer ring
