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ISO Tolerance Table 286 – Holes (H7, H8, H9, H11…)

tolerancias iso furos h h h h

ISO Tolerance Table 286 – Holes (H7, H8, H9, H11…)

Afastamentos-limite (superior / inferior) em micrômetros (µm = 0,001 mm) para as classes de tolerância mais usadas em furos, conforme ISO 286-2.

  • NormaISO 286
  • Lines13
  • Updated24 from October from 2026
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ISO Tolerance Table 286 – Holes (H7, H8, H9, H11…)
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How to use

  • Como ler: localize a faixa de diâmetro nominal (acima de … até, em mm) e a classe. Ex.: furo Ø 25 H7 = +21 / 0 → 25,000 a 25,021 mm.
  • Letras MAIÚSCULAS = furos; 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		H7
µm		H8
µm		H9
µm		H11
µm		G7
µm		F7
µm		F8
µm		JS7
µm		K7
µm		M7
µm		N7
µm		P7
µm
1 a 3+10 / 0+14 / 0+25 / 0+60 / 0+12 / +2+16 / +6+20 / +6+5 / −50 / −10−2 / −12−4 / −14−6 / −16
3 a 6+12 / 0+18 / 0+30 / 0+75 / 0+16 / +4+22 / +10+28 / +10+6 / −6+3 / −90 / −12−4 / −16−8 / −20
6 a 10+15 / 0+22 / 0+36 / 0+90 / 0+20 / +5+28 / +13+35 / +13+7,5 / −7,5+5 / −100 / −15−4 / −19−9 / −24
10 a 18+18 / 0+27 / 0+43 / 0+110 / 0+24 / +6+34 / +16+43 / +16+9 / −9+6 / −120 / −18−5 / −23−11 / −29
18 a 30+21 / 0+33 / 0+52 / 0+130 / 0+28 / +7+41 / +20+53 / +20+10,5 / −10,5+6 / −150 / −21−7 / −28−14 / −35
30 a 50+25 / 0+39 / 0+62 / 0+160 / 0+34 / +9+50 / +25+64 / +25+12,5 / −12,5+7 / −180 / −25−8 / −33−17 / −42
50 a 80+30 / 0+46 / 0+74 / 0+190 / 0+40 / +10+60 / +30+76 / +30+15 / −15+9 / −210 / −30−9 / −39−21 / −51
80 a 120+35 / 0+54 / 0+87 / 0+220 / 0+47 / +12+71 / +36+90 / +36+17,5 / −17,5+10 / −250 / −35−10 / −45−24 / −59
120 a 180+40 / 0+63 / 0+100 / 0+250 / 0+54 / +14+83 / +43+106 / +43+20 / −20+12 / −280 / −40−12 / −52−28 / −68
180 a 250+46 / 0+72 / 0+115 / 0+290 / 0+61 / +15+96 / +50+122 / +50+23 / −23+13 / −330 / −46−14 / −60−33 / −79
250 a 315+52 / 0+81 / 0+130 / 0+320 / 0+69 / +17+108 / +56+137 / +56+26 / −26+16 / −360 / −52−14 / −66−36 / −88
315 a 400+57 / 0+89 / 0+140 / 0+360 / 0+75 / +18+119 / +62+151 / +62+28,5 / −28,5+17 / −400 / −57−16 / −73−41 / −98
400 a 500+63 / 0+97 / 0+155 / 0+400 / 0+83 / +20+131 / +68+165 / +68+31,5 / −31,5+18 / −450 / −63−17 / −80−45 / −108

Source: ISO 286-2:2010 (valores conferidos com CAD Forum – ISO Tolerances).

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