NSK 639ZZ
Extra Small Ball Bearings and Miniature Ball Bearings Metric Series
(BRAND)：NSK
(Availability)：In Stock
(EMAIL)：info@noksbearings.com
Designations
639ZZ
Boundary Dimensions
d
9
mm
Bore diameter
D
30
mm
Outside diameter
B
10
mm
Width
r1 (min.)
0.6
mm
Chamfer dimension
Basic Load Ratings
Cr
5600
N
Basic dynamic load rating
C0r
2390
N
Basic static load rating
Speeds
Grease
24000
min-1
Grease lubrication
db (max.)
15.4
mm
Diameter of shaft abutment
Db (max.)
25.6
mm
Diameter of housing abutment
rb (max.)
0.6
mm
Radius of shaft or housing fillet
Abutment and Fillet Dimensions
z
8
Number of Balls
Dw
4.762
mm
Ball Diameter
