NSK 7921A5
Standard Series High Precision Angular Contact Ball Bearings
(BRAND)：NSK
(Availability)：In Stock
Designations
7921A5
Boundary Dimensions
d
105
mm
Bore diameter
D
145
mm
Outside diameter
B
20
mm
Width
r(min.)
1.1
mm
Chamfer Dimension
r1(min.)
0.6
mm
Chamfer Dimension
Basic Load Ratings
Cr
60.5
kN
Basic Dynamic Load Rating
C0r
54.0
kN
Basic Static Load Rating
Speeds
Grease
8000
min-1
Limiting Speed
Oil (Oil-air)
12000
min-1
Limiting Speed
Dimensions
A5: 25°
Contact Angle
a
39.2
mm
Effective Load Center
Abutment and Fillet Dimensions
da(min.)
112
mm
Diameter of Shaft Abutment
Da(max.)
138
mm
Diameter of Housing Abutment
Db(max.)
140
mm
Diameter of Housing Abutment
ra(max.)
1
mm
Radius of Shaft or Housing Fillet
rb(max.)
0.6
mm
Radius of Shaft or Housing Fillet
