NSK 7909C
Standard Series High Precision Angular Contact Ball Bearings
(BRAND)：NSK
(Availability)：In Stock
Designations
7909C
Boundary Dimensions
d
45
mm
Bore diameter
D
68
mm
Outside diameter
B
12
mm
Width
r(min.)
0.6
mm
Chamfer Dimension
r1(min.)
0.3
mm
Chamfer Dimension
Basic Load Ratings
Cr
20.2
kN
Basic Dynamic Load Rating
C0r
13.4
kN
Basic Static Load Rating
Speeds
Grease
20400
min-1
Limiting Speed
Oil (Oil-air)
31000
min-1
Limiting Speed
Dimensions
C: 15°
Contact Angle
a
13.6
mm
Effective Load Center
Abutment and Fillet Dimensions
da(min.)
50
mm
Diameter of Shaft Abutment
Da(max.)
63
mm
Diameter of Housing Abutment
Db(max.)
65.5
mm
Diameter of Housing Abutment
ra(max.)
0.6
mm
Radius of Shaft or Housing Fillet
rb(max.)
0.3
mm
Radius of Shaft or Housing Fillet
