j5 tolerance (shaft, IT5)
Shaft tolerance class j5 per ISO 286-1:2010: fundamental deviation ei −2 … −20, grade IT5 (4 µm at ≤ 3 mm to 27 µm at 400–500 mm). For an exact size, open the calculator with j5 selected.
- Type
- Shaft
- Grade
- IT5
- Tolerance
- 4 … 27 µm
- Fund. deviation
- ei −2 … −20 µm
j5 limits by size range
| Size (mm) | Upper (µm) | Lower (µm) | Ø max (mm) | Ø min (mm) | Upper (mm) | Lower (mm) | Dev. (in) |
|---|---|---|---|---|---|---|---|
| ≤ 3 | +2 | −2 | 3.002 | 2.998 | +0.002 | −0.002 | +0.00008 / −0.00008 |
| 3 – 6 | +3 | −2 | 6.003 | 5.998 | +0.003 | −0.002 | +0.00012 / −0.00008 |
| 6 – 10 | +4 | −2 | 10.004 | 9.998 | +0.004 | −0.002 | +0.00016 / −0.00008 |
| 10 – 14 | +5 | −3 | 14.005 | 13.997 | +0.005 | −0.003 | +0.00020 / −0.00012 |
| 14 – 18 | +5 | −3 | 18.005 | 17.997 | +0.005 | −0.003 | +0.00020 / −0.00012 |
| 18 – 24 | +5 | −4 | 24.005 | 23.996 | +0.005 | −0.004 | +0.00020 / −0.00016 |
| 24 – 30 | +5 | −4 | 30.005 | 29.996 | +0.005 | −0.004 | +0.00020 / −0.00016 |
| 30 – 40 | +6 | −5 | 40.006 | 39.995 | +0.006 | −0.005 | +0.00024 / −0.00020 |
| 40 – 50 | +6 | −5 | 50.006 | 49.995 | +0.006 | −0.005 | +0.00024 / −0.00020 |
| 50 – 65 | +6 | −7 | 65.006 | 64.993 | +0.006 | −0.007 | +0.00024 / −0.00028 |
| 65 – 80 | +6 | −7 | 80.006 | 79.993 | +0.006 | −0.007 | +0.00024 / −0.00028 |
| 80 – 100 | +6 | −9 | 100.006 | 99.991 | +0.006 | −0.009 | +0.00024 / −0.00035 |
| 100 – 120 | +6 | −9 | 120.006 | 119.991 | +0.006 | −0.009 | +0.00024 / −0.00035 |
| 120 – 140 | +7 | −11 | 140.007 | 139.989 | +0.007 | −0.011 | +0.00028 / −0.00043 |
| 140 – 160 | +7 | −11 | 160.007 | 159.989 | +0.007 | −0.011 | +0.00028 / −0.00043 |
| 160 – 180 | +7 | −11 | 180.007 | 179.989 | +0.007 | −0.011 | +0.00028 / −0.00043 |
| 180 – 200 | +7 | −13 | 200.007 | 199.987 | +0.007 | −0.013 | +0.00028 / −0.00051 |
| 200 – 225 | +7 | −13 | 225.007 | 224.987 | +0.007 | −0.013 | +0.00028 / −0.00051 |
| 225 – 250 | +7 | −13 | 250.007 | 249.987 | +0.007 | −0.013 | +0.00028 / −0.00051 |
| 250 – 280 | +7 | −16 | 280.007 | 279.984 | +0.007 | −0.016 | +0.00028 / −0.00063 |
| 280 – 315 | +7 | −16 | 315.007 | 314.984 | +0.007 | −0.016 | +0.00028 / −0.00063 |
| 315 – 355 | +7 | −18 | 355.007 | 354.982 | +0.007 | −0.018 | +0.00028 / −0.00071 |
| 355 – 400 | +7 | −18 | 400.007 | 399.982 | +0.007 | −0.018 | +0.00028 / −0.00071 |
| 400 – 450 | +7 | −20 | 450.007 | 449.980 | +0.007 | −0.020 | +0.00028 / −0.00079 |
| 450 – 500 | +7 | −20 | 500.007 | 499.980 | +0.007 | −0.020 | +0.00028 / −0.00079 |
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 j5
j5 denotes a shaft tolerance zone with transition deviation in the ISO 286 system.
At Ø25 mm j5 is +0.005 / −0.004 mm, i.e. 24.996 to 25.005 mm.
How the limits are calculated
j5 uses grade IT5 (a standard tolerance of 9 µm at 18–30 mm). Fundamental deviation: ei is tabulated directly by ISO 286-1 Table 2; es = ei + IT5. See the fundamental deviation table for every letter. Values per ISO 286-1:2010.