NSK 7221A
Standard Series High Precision Angular Contact Ball Bearings
(BRAND)：NSK
(Availability)：In Stock
Designations
7221A
Boundary Dimensions
d
105
mm
Bore diameter
D
190
mm
Outside diameter
B
36
mm
Width
r(min.)
2.1
mm
Chamfer Dimension
r1(min.)
1.1
mm
Chamfer Dimension
Basic Load Ratings
Cr
188
kN
Basic Dynamic Load Rating
C0r
132
kN
Basic Static Load Rating
Speeds
Grease
5100
min-1
Limiting Speed
Oil (Oil-air)
6800
min-1
Limiting Speed
Dimensions
A: 30°
Contact Angle
a
60.6
mm
Effective Load Center
Abutment and Fillet Dimensions
da(min.)
117
mm
Diameter of Shaft Abutment
Da(max.)
178
mm
Diameter of Housing Abutment
Db(max.)
183
mm
Diameter of Housing Abutment
ra(max.)
2
mm
Radius of Shaft or Housing Fillet
rb(max.)
1
mm
Radius of Shaft or Housing Fillet
