NSK 638VV
Extra Small Ball Bearings and Miniature Ball Bearings Metric Series
(BRAND)：NSK
(Availability)：In Stock
(EMAIL)：info@noksbearings.com
Designations
638VV
Boundary Dimensions
d
8
mm
Bore diameter
D
28
mm
Outside diameter
B
9
mm
Width
r1 (min.)
0.3
mm
Chamfer dimension
Basic Load Ratings
Cr
5050
N
Basic dynamic load rating
C0r
1970
N
Basic static load rating
Speeds
Grease
28000
min-1
Grease lubrication
db (max.)
12.8
mm
Diameter of shaft abutment
Db (max.)
22.6
mm
Diameter of housing abutment
rb (max.)
0.3
mm
Radius of shaft or housing fillet
Abutment and Fillet Dimensions
z
7
Number of Balls
Dw
4.762
mm
Ball Diameter
