Scribd
Upload
1K views3 pages

ISO Tolerances: Nominal Dimension Tolerance Zone in MM (External Measurements) Over To m6 h6 h8 h10 h11 h13 h14 h15 h16

The document contains tables with ISO tolerance specifications for various nominal dimensions of external and internal measurements. It lists the tolerance zones in millimeters for dimensions ranging from 0 to 500+ mm. It also includes examples of hole and shaft basis designations used with different fits from loose to force fits. Finally, it lists common machining processes associated with different ISO tolerance grades from 2 to 16.

Uploaded by

Bill White
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
1K views3 pages

ISO Tolerances: Nominal Dimension Tolerance Zone in MM (External Measurements) Over To m6 h6 h8 h10 h11 h13 h14 h15 h16

The document contains tables with ISO tolerance specifications for various nominal dimensions of external and internal measurements. It lists the tolerance zones in millimeters for dimensions ranging from 0 to 500+ mm. It also includes examples of hole and shaft basis designations used with different fits from loose to force fits. Finally, it lists common machining processes associated with different ISO tolerance grades from 2 to 16.

Uploaded by

Bill White
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
You are on page 1/ 3

deepri.

com

ISO Tolerances

Nominal
Tolerance Zone in mm (External Measurements)
Dimension
over to m6 h6 h8 h10 h11 h13 h14 h15 h16
+0.002 0 0 0 0 0
0 1
+0.008 -0.006 -0.014 -0.040 -0.060 -0.14
+0.002 0 0 0 0 0 0 0 0
1 3
+0.008 -0.006 -0.014 -0.040 -0.060 -0.14 -0.25 -0.40 -0.60
+0.004 0 0 0 0 0 0 0 0
3 6
+0.012 -0.008 -0.018 -0.048 -0.075 -0.18 -0.30 -0.48 -0.75
+0.006 0 0 0 0 0 0 0 0
6 10
+0.015 -0.009 -0.022 -0.058 -0.090 -0.22 -0.36 -0.58 -0.90
+0.007 0 0 0 0 0 0 0 0
10 18
+0.018 -0.011 -0.027 -0.070 -0.110 -0.27 -0.43 -0.70 -1.10
+0.008 0 0 0 0 0 0 0 0
18 30
+0.021 -0.030 -0.033 -0.084 -0.130 -0.33 -0.52 -0.84 -1.30
0 0 0 0
30 50
-0.39 -0.62 -1.00 -1.60
0 0 0 0
50 80
-0.46 -0.74 -1.20 -1.90
0 0 0 0
80 120
-0.54 -0.87 -1.40 -2.20

Nominal Dimension Tolerance Zone in mm (External Measurements)


over to js14 js15 js16 js17
1 3 +0.125 +0.20 +0.30 +0.50
3 6 +0.15 +0.24 +0.375 +0.60
6 10 +0.18 +0.29 +0.45 +0.75
10 18 +0.215 +0.35 +0.55 +0.90
18 30 +0.26 +0.42 +0.65 +1.05
30 50 +0.31 +0.50 +0.80 +1.25
50 80 +0.37 +0.60 +0.95 +1.50
80 120 +0.435 +0.70 +1.10 +1.75
120 180 +0.50 +0.80 +1.25 +2.00
180 250 +0.575 +0.925 +1.45 +2.30
250 315 +0.65 +1.05 +1.60 +2.60
315 400 +0.70 +1.15 +1.80 +2.85
400 500 +0.775 +1.25 +2.00 +3.15
Nominal Dimension Tolerance Zone in mm (Internal Measurements)
over to H7 H8 H9 H11 H13 H14
+0.010 +0.014 +0.025 +0.060 +0.14
0 1
0 0 0 0 0
+0.010 +0.014 +0.025 +0.060 +0.14 +0.25
1 3
0 0 0 0 0 0
+0.012 +0.018 +0.030 +0.075 +0.18 +0.30
3 6
0 0 0 0 0 0
+0.015 +0.022 +0.036 +0.090 +0.22 +0.36
6 10
0 0 0 0 0 0
+0.018 +0.027 +0.043 +0.110 +0.27 +0.43
10 18
0 0 0 0 0 0
+0.021 +0.033 +0.052 +0.130 +0.33 +0.52
18 30
0 0 0 0 0 0
+0.39 +0.62
30 50
0 0
+0.46 +0.74
50 80
0 0
+0.54 +0.87
80 120
0 0

Example limits and fits using hole basis


Description Hole Shaft

Loose Running H11 c11


Free Running H9 d9
Loose Running H11 c11
Easy Running - Good quality easy to
H8 f8
do-
Sliding H7 g6
Close Clearance - Spigots and
H8 f7
locations
Location/Clearance H7 h6
Location- slight interference H7 k6
Location/Transition H7 n6
Location/Interference- Press fit
H7 p6
which can be separated
Medium Drive H7 s6
Force H7 u6

Machining Process associated with ISO IT Tolerance Grade..

IT Grade 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Lapping
Honing
Superfinishing
Cylinderical grinding
Diamond turning
Plan grinding
Broaching
Reaming
Boring, Turning
Sawing
Milling
Planing, Shaping
Extruding
Cold Rolling, Drawing
Drilling
Die Casting
Forging
Sand Casting
Hot rolling, Flame cutting

*All information is strictly informative

You might also like