ISO Tolerance Table 286 – Axles (h6, h7, h8, h9…)
Afastamentos-limite (superior / inferior) em micrômetros (µm = 0,001 mm) para as classes de tolerância mais usadas em eixos, conforme ISO 286-2.
- NormaISO 286
- Lines13
- Updated24 from October from 2026
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- Como ler: localize a faixa de diâmetro nominal (acima de … até, em mm) e a classe. Ex.: eixo Ø 40 g6 = −9 / −25 → 39,975 a 39,991 mm.
- Letras minúsculas = eixos; o número é o grau IT (quanto menor, mais apertado). Para escolher o par furo/eixo veja a Tabela de Ajustes Recomendados.
| Ø nominal acima de … até mm | h6 µm | h7 µm | h8 µm | h9 µm | h11 µm | g6 µm | f7 µm | js6 µm | k6 µm | m6 µm | n6 µm | p6 µm |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 a 3 | 0 / −6 | 0 / −10 | 0 / −14 | 0 / −25 | 0 / −60 | −2 / −8 | −6 / −16 | +3 / −3 | +6 / 0 | +8 / +2 | +10 / +4 | +12 / +6 |
| 3 a 6 | 0 / −8 | 0 / −12 | 0 / −18 | 0 / −30 | 0 / −75 | −4 / −12 | −10 / −22 | +4 / −4 | +9 / +1 | +12 / +4 | +16 / +8 | +20 / +12 |
| 6 a 10 | 0 / −9 | 0 / −15 | 0 / −22 | 0 / −36 | 0 / −90 | −5 / −14 | −13 / −28 | +4,5 / −4,5 | +10 / +1 | +15 / +6 | +19 / +10 | +24 / +15 |
| 10 a 18 | 0 / −11 | 0 / −18 | 0 / −27 | 0 / −43 | 0 / −110 | −6 / −17 | −16 / −34 | +5,5 / −5,5 | +12 / +1 | +18 / +7 | +23 / +12 | +29 / +18 |
| 18 a 30 | 0 / −13 | 0 / −21 | 0 / −33 | 0 / −52 | 0 / −130 | −7 / −20 | −20 / −41 | +6,5 / −6,5 | +15 / +2 | +21 / +8 | +28 / +15 | +35 / +22 |
| 30 a 50 | 0 / −16 | 0 / −25 | 0 / −39 | 0 / −62 | 0 / −160 | −9 / −25 | −25 / −50 | +8 / −8 | +18 / +2 | +25 / +9 | +33 / +17 | +42 / +26 |
| 50 a 80 | 0 / −19 | 0 / −30 | 0 / −46 | 0 / −74 | 0 / −190 | −10 / −29 | −30 / −60 | +9,5 / −9,5 | +21 / +2 | +30 / +11 | +39 / +20 | +51 / +32 |
| 80 a 120 | 0 / −22 | 0 / −35 | 0 / −54 | 0 / −87 | 0 / −220 | −12 / −34 | −36 / −71 | +11 / −11 | +25 / +3 | +35 / +13 | +45 / +23 | +59 / +37 |
| 120 a 180 | 0 / −25 | 0 / −40 | 0 / −63 | 0 / −100 | 0 / −250 | −14 / −39 | −43 / −83 | +12,5 / −12,5 | +28 / +3 | +40 / +15 | +52 / +27 | +68 / +43 |
| 180 a 250 | 0 / −29 | 0 / −46 | 0 / −72 | 0 / −115 | 0 / −290 | −15 / −44 | −50 / −96 | +14,5 / −14,5 | +33 / +4 | +46 / +17 | +60 / +31 | +79 / +50 |
| 250 a 315 | 0 / −32 | 0 / −52 | 0 / −81 | 0 / −130 | 0 / −320 | −17 / −49 | −56 / −108 | +16 / −16 | +36 / +4 | +52 / +20 | +66 / +34 | +88 / +56 |
| 315 a 400 | 0 / −36 | 0 / −57 | 0 / −89 | 0 / −140 | 0 / −360 | −18 / −54 | −62 / −119 | +18 / −18 | +40 / +4 | +57 / +21 | +73 / +37 | +98 / +62 |
| 400 a 500 | 0 / −40 | 0 / −63 | 0 / −97 | 0 / −155 | 0 / −400 | −20 / −60 | −68 / −131 | +20 / −20 | +45 / +5 | +63 / +23 | +80 / +40 | +108 / +68 |
Source: ISO 286-2:2010 (valores conferidos com CAD Forum – ISO Tolerances).