NSK 689
Extra Small Ball Bearings and Miniature Ball Bearings Metric Series
(BRAND)：NSK
(Availability)：In Stock
(EMAIL)：info@noksbearings.com
Designations
689
Boundary Dimensions
d
9
mm
Bore diameter
D
17
mm
Outside diameter
B
4
mm
Width
r (min.)
0.2
mm
Chamfer dimension
Basic Load Ratings
Cr
1460
N
Basic dynamic load rating
C0r
665
N
Basic static load rating
Speeds
Grease
36000
min-1
Grease lubrication
Oil (Oil-bath)
43000
min-1
Oil-bath lubrication
da (min.)
10.6
mm
Diameter of shaft abutment
Da (max.)
15.4
mm
Diameter of housing abutment
ra (max.)
0.2
mm
Radius of shaft or housing fillet
Abutment and Fillet Dimensions
z
11
Number of Balls
Dw
2
mm
Ball Diameter
