ISO 286 · f7 shaft · Ø5 mm
5 mm f7 Tolerance — Shaft Limits in mm and µm
https://shopmath.org/fits/f7/5mm · data verified August 1, 2026
A 5 mm f7 shaft is 4.978 to 4.990 mm — deviations of -22 to -10 µm on an IT7 band 12 µm wide. Close running shaft — the standard choice for lubricated journals at moderate speed. Values apply at the ISO 286 reference temperature of 20 °C.
- Nominal
- 5 mm
- Designation
- f7
- Feature
- shaft
- Grade
- IT7
- Band
- 12 µm
5 mm f7 shaft · limits, mm
4.978 … 4.990
- Upper dev
- -10µm
- Lower dev
- -22µm
- Band
- 12µm
Measured at 20 °C on a plain cylindrical feature. The IT7 grade sets the 12 µm width; the f sets where the band sits.
Limits for a 5 mm f7 Shaft
Deviations in micrometres, finished limits in millimetres. Both describe the same band — the deviation is what a drawing carries, the limit is what a gauge reads.
| Limit | µm | mm |
|---|---|---|
| Upper deviation | -10 | -0.010 |
| Lower deviation | -22 | -0.022 |
| Maximum diameter | -10 | 4.990 |
| Minimum diameter | -22 | 4.978 |
| Tolerance band (IT7) | 12 | 0.012 |
Deviations are relative to the 5 mm nominal size. Values apply at the ISO 286 reference temperature of 20 °C; a part measured warm is not at these limits.
ISO 286 Tolerance Grades at 5 mm
5 mm falls in the ISO 286 size band over 3 to 6 mm, so every tolerance in that band has the same width regardless of which letter it carries.
| Grade | Tolerance, µm | Tolerance, mm |
|---|---|---|
| IT5 | 5 | 0.005 |
| IT6 | 8 | 0.008 |
| IT7 | 12 | 0.012 |
| IT8 | 18 | 0.018 |
| IT9 | 30 | 0.030 |
| IT10 | 48 | 0.048 |
| IT11 | 75 | 0.075 |
| IT12 | 120 | 0.120 |
The grade sets the width of the band; the letter sets where that band sits relative to the nominal size.
Every Other ISO 286 Tolerance at 5 mm
The same nominal size under every other designation in this reference — the comparison that decides whether a feature is called out f7 or something looser.
| Property | Property | Deviation, µm | Limits, mm | ||
|---|---|---|---|---|---|
| Designation | Applies to | Upper | Lower | Min | Max |
| c11 | shaft | -70 | -145 | 4.855 | 4.930 |
| d9 | shaft | -30 | -60 | 4.940 | 4.970 |
| e8 | shaft | -20 | -38 | 4.962 | 4.980 |
| f7 | shaft | -10 | -22 | 4.978 | 4.990 |
| g6 | shaft | -4 | -12 | 4.988 | 4.996 |
| h11 | shaft | 0 | -75 | 4.925 | 5.000 |
| h6 | shaft | 0 | -8 | 4.992 | 5.000 |
| h7 | shaft | 0 | -12 | 4.988 | 5.000 |
| h9 | shaft | 0 | -30 | 4.970 | 5.000 |
| k6 | shaft | +9 | +1 | 5.001 | 5.009 |
| m6 | shaft | +12 | +4 | 5.004 | 5.012 |
| n6 | shaft | +16 | +8 | 5.008 | 5.016 |
| p6 | shaft | +20 | +12 | 5.012 | 5.020 |
| r6 | shaft | +23 | +15 | 5.015 | 5.023 |
| F8 | hole | +28 | +10 | 5.010 | 5.028 |
| G7 | hole | +16 | +4 | 5.004 | 5.016 |
| H11 | hole | +75 | 0 | 5.000 | 5.075 |
| H6 | hole | +8 | 0 | 5.000 | 5.008 |
| H7 | hole | +12 | 0 | 5.000 | 5.012 |
| H8 | hole | +18 | 0 | 5.000 | 5.018 |
| H9 | hole | +30 | 0 | 5.000 | 5.030 |
| K7 | hole | +3 | -9 | 4.991 | 5.003 |
| N7 | hole | -4 | -16 | 4.984 | 4.996 |
| P7 | hole | -8 | -20 | 4.980 | 4.992 |
Links go to that designation's page for this size where one exists, and to its full size table otherwise.
Standard Fits Available at 5 mm
What each standard hole/shaft pair gives at 5 mm, loosest first. Negative clearance is interference.
| Property | Property | Clearance, µm | Property | |
|---|---|---|---|---|
| Fit | Type | Min | Max | What it is for |
| H7/h6 | clearance | 0 | +20 | Locational clearance. Assembles by hand, no free movement intended. |
| H11/c11 | clearance | +70 | +220 | Loose running. Wide commercial tolerances, large clearance for dirt, paint and thermal growth. |
| H9/d9 | clearance | +30 | +90 | Free running. Good where accuracy is not essential and clearance can be generous. |
| H8/e8 | clearance | +20 | +56 | Running fit with room for a lubricant film at speed. |
| H8/f7 | clearance | +10 | +40 | Close running. The general-purpose lubricated journal fit. |
| H7/g6 | clearance | +4 | +24 | Sliding. Locates accurately, still moves and turns freely. |
| H7/k6 | transition | -9 | +11 | Locational transition. Accurate location, assembles with light force. |
| H7/m6 | transition | -12 | +8 | Locational transition, tighter than k6. |
| H7/n6 | transition | -16 | +4 | Tight transition. Usually a press job. |
| H7/p6 | interference | -20 | 0 | Locational interference. Rigid location in steel without the load capacity of a drive fit. |
| H7/r6 | interference | -23 | -3 | Medium drive. The joint itself carries load. |
| F8/h7 | clearance | +10 | +40 | Close running, shaft basis. |
| G7/h6 | clearance | +4 | +24 | Sliding, shaft basis. The h6 shaft is the reference and the hole carries the clearance. |
| K7/h6 | transition | -9 | +11 | Locational transition, shaft basis. |
| N7/h6 | transition | -16 | +4 | Tight transition, shaft basis. |
| P7/h6 | interference | -20 | 0 | Locational interference, shaft basis. |
Minimum clearance is the largest shaft in the smallest hole; maximum clearance is the smallest shaft in the largest hole.
Sources and Method for the 5 mm f7 Tolerance
- 5 mm f7 limitscomputed
limits computed from the compiled ISO 286 tables: ISO 286-1 IT grades and ISO 286-2 fundamental deviations, compiled from saucecode/ISO286 (LGPL-2.1) and parkergreene/isofits (MIT), cross-checked cell-for-cell
Verified against parkergreene/isofits ISO 286-2 limit tables (MIT); ISO 286-1 formula harness — 2067 checks passed
Computed from the standard's formulas, then checked against published tables.
- IT tolerance gradescompiled
ISO 286-1 IT grades and ISO 286-2 fundamental deviations, compiled from saucecode/ISO286 (LGPL-2.1) and parkergreene/isofits (MIT), cross-checked cell-for-cell
Verified against parkergreene/isofits ISO 286-2 limit tables (MIT); ISO 286-1 formula harness — 2067 checks passed. Formula per ISO 286-1 standard tolerance factor and fundamental deviation formulas, used as a validation harness only per docs/research/data-sourcing.md §3.6
Compiled from independent public sources that agree cell-for-cell.
- Formula
Limits from the deviations at 5 mm
max Ø = 5 mm + (-10 µm) = 4.990 mm min Ø = 5 mm + (-22 µm) = 4.978 mm
The deviations are compiled from the ISO 286-2 tables; the limits are those deviations applied to the nominal size.
- Assumptions
- Values apply at the ISO 286 reference temperature of 20 °C.
- Size only. Form, roundness, cylindricity and surface finish are separate callouts and a part inside these limits can still be unusable without them.
- Dataset scope: COMPILED not computed: the ISO 286-1 formula deviates up to 13.26% from the table and is used only as a harness (warn >5%, fail >15%). EXCLUDED: shaft/hole letters s, t, u and the fits H7/s6, H7/t6, H7/u6 — no free source and an undetermined step constant in the formula.
- Data last verified
- August 1, 2026
How to Cite This 5 mm f7 Tolerance Reference
Citation
ShopMath. "5 mm f7 Tolerance — Shaft Limits in mm and µm." ShopMath, verified August 1, 2026, https://shopmath.org/fits/f7/5mm
BibTeX
@misc{shopmath-fits-f7-5mm,
title = {5 mm f7 Tolerance — Shaft Limits in mm and µm},
author = {{ShopMath}},
year = {2026},
howpublished = {\url{https://shopmath.org/fits/f7/5mm}},
note = {Data verified 2026-08-01}
}Permanent URL
https://shopmath.org/fits/f7/5mm
Common Questions About the 5 mm f7 Tolerance
What is the tolerance for a 5 mm f7 shaft?
- A 5 mm f7 shaft runs 4.978 to 4.990 mm — deviations of -22 to -10 µm, a band 12 µm wide.
What is the maximum and minimum size of a 5 mm f7 shaft?
- Maximum 4.990 mm, minimum 4.978 mm. Anything outside that band is a reject at 20 °C, not a judgement call.
Why is the IT7 band 12 µm at 5 mm?
- Because 5 mm falls in the ISO 286 size band over 3 up to 6 mm, and IT7 is defined per band rather than per size. Every nominal size in that band carries the same 12 µm width for IT7.
What shaft goes in a 5 mm f7 hole?
- At 5 mm the standard pairs run from H7/h6 (0 to +20 µm clearance) through transition to interference fits — the full list with clearances is on this page.
What does the f in f7 mean?
- Close running clearance. It fixes the fundamental deviation — the limit nearest the nominal size — while IT7 fixes the width of the band, which at 5 mm is 12 µm.
All 13 f7 sizes · ISO 286 tolerance chart · Every designation and fit