Printed from Kezuriba (kezuriba.net/en/fits/)
Tolerance classes and limit deviations
Holes use capital letters (H7) and shafts lower-case letters (h7). Click a class to open its full table for every size range up to 500 mm. The values below are the example for over 24 to 30 mm, in µm.
Capital letters
for holes, small
for shafts!
◯Holes
| Class | Example: 24–30 mm |
|---|---|
| E7 | +61 / +40 |
| E8 | +73 / +40 |
| F6 | +33 / +20 |
| F7 | +41 / +20 |
| F8 | +53 / +20 |
| G6 | +20 / +7 |
| G7 | +28 / +7 |
| H5 | +9 / ±0 |
| H6 | +13 / ±0 |
| H7 | +21 / ±0 |
| H8 | +33 / ±0 |
| H9 | +52 / ±0 |
| H10 | +84 / ±0 |
| H11 | +130 / ±0 |
| JS6 | +6.5 / −6.5 |
| JS7 | +10.5 / −10.5 |
| K6 | +2 / −11 |
| K7 | +6 / −15 |
| M6 | −4 / −17 |
| M7 | ±0 / −21 |
| N6 | −11 / −24 |
| N7 | −7 / −28 |
| P6 | −18 / −31 |
| P7 | −14 / −35 |
| R7 | −20 / −41 |
| S7 | −27 / −48 |
●Shafts
| Class | Example: 24–30 mm |
|---|---|
| d9 | −65 / −117 |
| e7 | −40 / −61 |
| e8 | −40 / −73 |
| e9 | −40 / −92 |
| f6 | −20 / −33 |
| f7 | −20 / −41 |
| f8 | −20 / −53 |
| g5 | −7 / −16 |
| g6 | −7 / −20 |
| h5 | ±0 / −9 |
| h6 | ±0 / −13 |
| h7 | ±0 / −21 |
| h8 | ±0 / −33 |
| h9 | ±0 / −52 |
| js5 | +4.5 / −4.5 |
| js6 | +6.5 / −6.5 |
| js7 | +10.5 / −10.5 |
| k5 | +11 / +2 |
| k6 | +15 / +2 |
| m5 | +17 / +8 |
| m6 | +21 / +8 |
| n6 | +28 / +15 |
| p6 | +35 / +22 |
| r6 | +41 / +28 |
| s6 | +48 / +35 |
For the clearance or interference of a pair, use the ISO fit calculator.