NSK QJ228
Four-Point Contact Ball Bearings
(BRAND)：NSK
(Availability)：In Stock
Designations
QJ228
Boundary Dimensions
d
140
mm
Bore diameter
D
250
mm
Outside diameter
B
42
mm
Width
r (min.)
3
mm
Chamfer dimension
Basic Load Ratings
Ca
350000
N
Basic dynamic load rating
C0a
775000
N
Basic static load rating
Speeds
Grease
2000
min-1
Grease lubrication
Oil (Oil-bath)
2800
min-1
Oil-bath lubrication
a0
136.5
mm
Load center spacings
Dimensions
da (min.)
154
mm
Diameter of shaft abutment
Da (max.)
236
mm
Diameter of housing abutment
ra (max.)
2.5
mm
Radius of shaft or housing fillet
