D10 tolerance (hole, IT10)
Hole tolerance class D10 per ISO 286-1:2010: fundamental deviation EI +20 … +230, grade IT10 (40 µm at ≤ 3 mm to 250 µm at 400–500 mm). For an exact size, open the calculator with D10 selected.
- Type
- Hole
- Grade
- IT10
- Tolerance
- 40 … 250 µm
- Fund. deviation
- EI +20 … +230 µm
D10 limits by size range
| Size (mm) | Upper (µm) | Lower (µm) | Ø max (mm) | Ø min (mm) | Upper (mm) | Lower (mm) | Dev. (in) |
|---|---|---|---|---|---|---|---|
| ≤ 3 | +60 | +20 | 3.060 | 3.020 | +0.060 | +0.020 | +0.00236 / +0.00079 |
| 3 – 6 | +78 | +30 | 6.078 | 6.030 | +0.078 | +0.030 | +0.00307 / +0.00118 |
| 6 – 10 | +98 | +40 | 10.098 | 10.040 | +0.098 | +0.040 | +0.00386 / +0.00157 |
| 10 – 14 | +120 | +50 | 14.120 | 14.050 | +0.120 | +0.050 | +0.00472 / +0.00197 |
| 14 – 18 | +120 | +50 | 18.120 | 18.050 | +0.120 | +0.050 | +0.00472 / +0.00197 |
| 18 – 24 | +149 | +65 | 24.149 | 24.065 | +0.149 | +0.065 | +0.00587 / +0.00256 |
| 24 – 30 | +149 | +65 | 30.149 | 30.065 | +0.149 | +0.065 | +0.00587 / +0.00256 |
| 30 – 40 | +180 | +80 | 40.180 | 40.080 | +0.180 | +0.080 | +0.00709 / +0.00315 |
| 40 – 50 | +180 | +80 | 50.180 | 50.080 | +0.180 | +0.080 | +0.00709 / +0.00315 |
| 50 – 65 | +220 | +100 | 65.220 | 65.100 | +0.220 | +0.100 | +0.00866 / +0.00394 |
| 65 – 80 | +220 | +100 | 80.220 | 80.100 | +0.220 | +0.100 | +0.00866 / +0.00394 |
| 80 – 100 | +260 | +120 | 100.260 | 100.120 | +0.260 | +0.120 | +0.01024 / +0.00472 |
| 100 – 120 | +260 | +120 | 120.260 | 120.120 | +0.260 | +0.120 | +0.01024 / +0.00472 |
| 120 – 140 | +305 | +145 | 140.305 | 140.145 | +0.305 | +0.145 | +0.01201 / +0.00571 |
| 140 – 160 | +305 | +145 | 160.305 | 160.145 | +0.305 | +0.145 | +0.01201 / +0.00571 |
| 160 – 180 | +305 | +145 | 180.305 | 180.145 | +0.305 | +0.145 | +0.01201 / +0.00571 |
| 180 – 200 | +355 | +170 | 200.355 | 200.170 | +0.355 | +0.170 | +0.01398 / +0.00669 |
| 200 – 225 | +355 | +170 | 225.355 | 225.170 | +0.355 | +0.170 | +0.01398 / +0.00669 |
| 225 – 250 | +355 | +170 | 250.355 | 250.170 | +0.355 | +0.170 | +0.01398 / +0.00669 |
| 250 – 280 | +400 | +190 | 280.400 | 280.190 | +0.400 | +0.190 | +0.01575 / +0.00748 |
| 280 – 315 | +400 | +190 | 315.400 | 315.190 | +0.400 | +0.190 | +0.01575 / +0.00748 |
| 315 – 355 | +440 | +210 | 355.440 | 355.210 | +0.440 | +0.210 | +0.01732 / +0.00827 |
| 355 – 400 | +440 | +210 | 400.440 | 400.210 | +0.440 | +0.210 | +0.01732 / +0.00827 |
| 400 – 450 | +480 | +230 | 450.480 | 450.230 | +0.480 | +0.230 | +0.01890 / +0.00906 |
| 450 – 500 | +480 | +230 | 500.480 | 500.230 | +0.480 | +0.230 | +0.01890 / +0.00906 |
Deviations at the upper end of each range (Ø columns use that size); use the calculator for the exact size. — : not defined by ISO 286 for that size. Upper/Lower (mm) and inch columns are shown on wider screens.
About D10
D10 denotes a hole tolerance zone with running clearance deviation in the ISO 286 system. It is used in D10/h9 (Generous clearance on a plain shaft for loose pulleys and idlers.).
At Ø25 mm D10 is +0.149 / +0.065 mm, i.e. 25.065 to 25.149 mm.
How the limits are calculated
D10 uses grade IT10 (a standard tolerance of 84 µm at 18–30 mm). Fundamental deviation: EI = −es of the same shaft letter; IT10 sets the width above EI. See the fundamental deviation table for every letter. Values per ISO 286-1:2010.