NSK R1-4
Extra Small Ball Bearings and Miniature Ball Bearings Inch Series
(BRAND)：NSK
(Availability)：In Stock
(EMAIL)：info@noksbearings.com
Designations
R1-4
Boundary Dimensions
d
1.984
mm
Bore diameter
D
6.35
mm
Outside diameter
B
2.38
mm
Width
r (min.)
0.1
mm
Chamfer dimension
Basic Load Ratings
Cr
340
N
Basic dynamic load rating
C0r
108
N
Basic static load rating
Speeds
Grease
67000
min-1
Grease lubrication
Oil (Oil-bath)
80000
min-1
Oil-bath lubrication
da (min.)
2.8
mm
Diameter of shaft abutment
Da (max.)
5.5
mm
Diameter of housing abutment
ra (max.)
0.1
mm
Radius of shaft or housing fillet
Abutment and Fillet Dimensions
z
8
Number of Balls
Dw
1
mm
Ball Diameter
