NSK 7228BDF
Matched Angular Contact Ball Bearings
(BRAND)：NSK
(Availability)：In Stock
(EMAIL)：info@noksbearings.com
Designations
7228BDF
Boundary Dimensions
d
140
mm
Bore diameter
D
250
mm
Outside diameter
2B
84
mm
Width 2B
r (min.)
3
mm
Chamfer dimension
r1 (min.)
1.1
mm
Chamfer dimension
Basic Load Ratings
Cr
355000
N
Basic dynamic load rating
C0r
425000
N
Basic static load rating
Speeds
Grease
1600
min-1
Grease lubrication
Oil (Oil-bath)
2200
min-1
Oil-bath lubrication
a0
121.6
mm
Load center spacings
Dimensions
rb (max.)
2.5
mm
Radius of fillet
Da (max.)
236
mm
Diameter of housing abutment
db (min.)
154
mm
Diameter of shaft abutment
ra (max.)
2.5
mm
Radius of shaft or housing fillet
