DIN 5401 INTERNATIONAL STANDARDS

DIN 5401 : 2002-08 (GERMAN STANDARDS)
GRADE
Class
Nominal diameter Dw (mm)
Limit deviations (µm) (5)
Ball diameter variation
Roundness error
Surface roughness (6)
Lot diameter variation (5)
Subgauge interval
Subgauges (µm) (7)
From
To
VDws Max. (µm)
tDws Max. (µm)
Ra Max. (µm)
VDwL/A Max. (µm)
IG, ST (µm)
G3
-
-
12.7
± 5.32
0.08
0.08
0.010
0.13 (L)
0.5
from -5 to -0.5
0
from +0.5 to +5
G5
I
-
12.7
± 5.63
0.13
0.13
0.014
0.25 (L)
1
from -5 to -1
0
from +1 to +5
G10
II
-
25.4
± 9.75
0.25
0.25
0.020
0.50 (L)
1
from -9 to -1
0
from +1 to +9
G16 (1)
II
-
25.4
± 11.4
0.40
0.40
0.025
0.80 (L)
2
from -10 to -2
0
from +2 to +10
G20 (1)
III
-
38.1
± 11.5
0.50
0.50
0.032
1.0 (L)
2
from -10 to -2
0
from +2 to +10
G28 (1)
III
-
50.8
± 13.7
0.70
0.70
0.050
1.4 (L)
2
from -12 to -2
0
from +2 to +12
G40
III
-
100
± 19.0
1.0
1.0
0.060
2.0 (L)
4
from -16 to -4
0
from +4 to +16
G80 (2)
III
-
100
± 14.0
2.0
2.0
0.10
4.0 (A)
4
from -12 to -4
0
from +4 to +12
G100
III
-
150
± 47.5
2.5
2.5
0.10
5.0 (L)
10
from -40 to -10
0
from 10 to +40
G200
IV
-
150
± 72.5
5.0
5.0
0.15
10 (L)
10
from -60 to -10
0
from +10 to +60
G300 (1)
IV
-
25.4
± 70.0
10
10
0.20
20 (A)
20
from -60 to -20
0
from +20 to +60
G300 (3)
IV
25.4
50.8
± 105
15
15
0.20
30 (A)
30
from -90 to -30
0
from +30 to +90
G300
IV
50.8
75
± 140
20
20
0.20
40 (A)
40
from -120 to -40
0
0 from +40 to +120
G500 (4)
V
-
25.4
± 75.0
25
25
-
50 (A)
50
-50
0
+50
G500
V
25.4
50.8
± 112.5
25
25
-
75 (A)
75
-75
0
+75
G500
V
50.8
75
± 150
25
25
-
100 (A)
100
-100
0
+100
G500
V
75
100
± 187.5
32
32
-
125 (A)
125
-125
0
+125
G500
V
100
125
± 225
38
38
-
150 (A)
150
-150
0
+150
G500
V
125
150
± 262.5
44
44
-
175 (A)
175
-175
0
+175
G600 (4)
VI
all
all
± 200
-
-
-
400 (A)
-
-
0
-
G700 (4)
VI
all
all
± 1000
-
-
-
2000 (A)
-
-
0
-
Notes
(1)
In some cases and subject to agreement, half teh gauge interval values may be used for grades G16, G20, G28 and G300.
(2)
Not specified in ISO 3290.
(3)
Not specified in ISO 3290.
(4)
Not specified in ISO 3290.
(5)
Values relate to the mean diameter of a ball, Dwm.
(6)
See DIN EN ISO 4288. For smaller ball sizes (not covered ib this standard), values are subject to agreement.
(7)
Graded in intervals equal to IG.
Revision n.2