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ISO Limits and Fits
ISO Shaft Tolerances
| ISO Tolerances for Shafts (ISO 286-2) | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Nominal Shaft Sizes (mm) | ||||||||||||||||||||
| over | 3 | 6 | 10 | 18 | 30 | 40 | 50 | 65 | 80 | 100 | 120 | 140 | 160 | 180 | 200 | 225 | 250 | 280 | 315 | 355 |
| inc. | 6 | 10 | 18 | 30 | 40 | 50 | 65 | 80 | 100 | 120 | 140 | 160 | 180 | 200 | 225 | 250 | 280 | 315 | 355 | 400 |
| micrometres | ||||||||||||||||||||
| a12 | -270 -390 |
-280 -430 |
-290 -470 |
-300 -510 |
-310 -560 |
-320 -570 |
-340 -640 |
-360 -660 |
-380 -730 |
-410 -760 |
-460 -860 |
-520 -920 |
-580 -980 |
-660 -1120 |
-740 -1200 |
-820 -1280 |
-920 -1440 |
-1050 -1570 |
-1200 -1770 |
-1350 -1920 |
| d6 | -30 -38 |
-40 -49 |
-50 -61 |
-65 -78 |
-80 -96 |
-100 -119 |
-120 -142 |
-145 -170 |
-170 -199 |
-190 -222 |
-210 -246 |
|||||||||
| e6 | -20 -28 |
-25 -34 |
-32 -43 |
-40 -53 |
-50 -66 |
-60 -79 |
-72 -94 |
-85 -110 |
-100 -129 |
-110 -142 |
-125 -161 |
|||||||||
| e13 | -20 -200 |
-25 -245 |
-32 -302 |
-40 -370 |
-50 -440 |
-60 -520 |
-72 -612 |
-85 -715 |
-100 -820 |
-110 -920 |
-125 -1015 |
|||||||||
| f5 | -10 -15 |
-13 -19 |
-16 -24 |
-20 -29 |
-25 -36 |
-30 -43 |
-36 -51 |
-43 -61 |
-50 -70 |
-56 -79 |
-62 -87 |
|||||||||
| f6 | -10 -18 |
-13 -22 |
-16 -27 |
-20 -33 |
-25 -41 |
-30 -49 |
-36 -58 |
-43 -48 |
-50 -79 |
-56 -88 |
-62 -98 |
|||||||||
| f7 | -10 -22 |
-13 -28 |
-16 -34 |
-20 -41 |
-25 -50 |
-30 -60 |
-36 -71 |
-43 -83 |
-50 -96 |
-56 -108 |
-62 -119 |
|||||||||
| g5 | -4 -9 |
-5 -11 |
-6 -14 |
-7 -16 |
-9 -20 |
-10 -23 |
-12 -27 |
-14 -32 |
-15 -35 |
-17 -40 |
-18 -43 |
|||||||||
| g6 | -4 -12 |
-5 -14 |
-6 -17 |
-7 -20 |
-9 -25 |
-10 -29 |
-12 -34 |
-14 -39 |
-15 -44 |
-17 -49 |
-18 -54 |
|||||||||
| g7 | -4 -16 |
-5 -20 |
-6 -24 |
-7 -28 |
-9 -34 |
-10 -40 |
-12 -47 |
-14 -54 |
-15 -61 |
-17 -69 |
-18 -75 |
|||||||||
| h4 | -0 -4 |
-0 -4 |
-0 -5 |
-0 -6 |
-0 -7 |
-0 -8 |
-0 -10 |
-0 -12 |
-0 -14 |
-0 -16 |
-0 -18 |
|||||||||
| h5 | -0 -5 |
-0 -6 |
-0 -8 |
-0 -9 |
-0 -11 |
-0 -13 |
-0 -15 |
-0 -18 |
-0 -20 |
-0 -23 |
-0 -25 |
|||||||||
| h6 | -0 -8 |
-0 -9 |
-0 -11 |
-0 -13 |
-0 -16 |
-0 -19 |
-0 -22 |
-0 -25 |
-0 -29 |
-0 -32 |
-0 -36 |
|||||||||
| h7 | -0 -12 |
-0 -15 |
-0 -18 |
-0 -21 |
-0 -25 |
-0 -30 |
-0 -35 |
-0 -40 |
-0 -46 |
-0 -52 |
-0 -57 |
|||||||||
| h8 | -0 -18 |
-0 -22 |
-0 -27 |
-0 -33 |
-0 -39 |
-0 -46 |
-0 -54 |
-0 -63 |
-0 -72 |
-0 -81 |
-0 -89 |
|||||||||
| h9 | -0 -30 |
-0 -36 |
-0 -43 |
-0 -52 |
-0 -62 |
-0 -74 |
-0 -87 |
-0 -100 |
-0 -115 |
-0 -130 |
-0 -140 |
|||||||||
| h10 | -0 -48 |
-0 -58 |
-0 -70 |
-0 -84 |
-0 -100 |
-0 -120 |
-0 -140 |
-0 -160 |
-0 -185 |
-0 -210 |
-0 -230 |
|||||||||
| h11 | -0 -75 |
-0 -90 |
-0 -110 |
-0 -130 |
-0 -160 |
-0 -190 |
-0 -220 |
-0 -250 |
-0 -290 |
-0 -320 |
-0 -360 |
|||||||||
| h12 | -0 -120 |
-0 -150 |
-0 -180 |
-0 -210 |
-0 -250 |
-0 -300 |
-0 -350 |
-0 -400 |
-0 -460 |
-0 -520 |
-0 -570 |
|||||||||
| j5 | +3 -2 |
+4 -2 |
+5 -3 |
+5 -4 |
+6 -5 |
+6 -7 |
+6 -9 |
+7 -11 |
+7 -13 |
+7 -16 |
+7 -18 |
|||||||||
| j6 | +6 -2 |
+7 -2 |
+8 -3 |
+9 -4 |
+11 -5 |
+12 -7 |
+13 -9 |
+14 -11 |
+16 -13 |
+16 -16 |
+18 -18 |
|||||||||
| j7 | +8 -4 |
+10 -5 |
+12 -6 |
+13 -8 |
+15 -10 |
+18 -12 |
+20 -15 |
+22 -18 |
+25 -21 |
+26 -26 |
+29 -28 |
|||||||||
| js5 | +2.5 -2.5 |
+3 -3 |
+4 -4 |
+4.5 -4.5 |
+5.5 -5.5 |
+6.5 -6.5 |
+7.5 -7.5 |
+9 -9 |
+10 -10 |
+11.5 -11.5 |
+12.5 -12.5 |
|||||||||
| js6 | +4 -4 |
+4.5 -4.5 |
+5.5 -5.5 |
+6.5 -6.5 |
+8 -8 |
+9.5 -9.5 |
+11 -11 |
+12.5 -12.5 |
+14.5 -14.5 |
+16 -16 |
+18 -18 |
|||||||||
| js7 | +6 -6 |
+7.5 -7.5 |
+9 -9 |
+10.5 -10.5 |
+12.5 -12.5 |
+15 -15 |
+17.5 -17.5 |
+20 -20 |
+23 -23 |
+26 -26 |
+28.5 -28.5 |
|||||||||
| k5 | +6 +1 |
+7 +1 |
+9 +1 |
+11 +2 |
+13 +2 |
+15 +2 |
+18 +3 |
+21 +3 |
+24 +4 |
+27 +4 |
+29 +4 |
|||||||||
| k6 | +9 +1 |
+10 +1 |
+12 +1 |
+15 +2 |
+18 +2 |
+21 +2 |
+25 +3 |
+28 +3 |
+33 +4 |
+36 +4 |
+40 +4 |
|||||||||
| k7 | +13 +1 |
+16 +1 |
+19 +1 |
+23 +2 |
+27 +2 |
+32 +2 |
+38 +3 |
+43 +3 |
+50 +4 |
+56 +4 |
+61 +4 |
|||||||||
| m5 | +9 +4 |
+12 +6 |
+15 +7 |
+17 +8 |
+20 +9 |
+24 +11 |
+28 +13 |
+33 +15 |
+37 +17 |
+43 +20 |
+46 +21 |
|||||||||
| m6 | +12 +4 |
+15 +6 |
+18 +7 |
+21 +8 |
+25 +9 |
+30 +11 |
+35 +13 |
+40 +15 |
+46 +17 |
+52 +20 |
+57 +21 |
|||||||||
| m7 | +16 +4 |
+21 +6 |
+25 +7 |
+29 +8 |
+34 +9 |
+41 +11 |
+48 +13 |
+55 +15 |
+63 +17 |
+72 +20 |
+78 +21 |
|||||||||
| n5 | +13 +8 |
+16 +10 |
+20 +12 |
+24 +15 |
+28 +17 |
+33 +20 |
+38 +23 |
+45 +27 |
+51 +31 |
+57 +34 |
+62 +37 |
|||||||||
| n6 | +16 +8 |
+19 +10 |
+23 +12 |
+28 +15 |
+33 +17 |
+39 +20 |
+45 +23 |
+52 +27 |
+60 +31 |
+66 +34 |
+73 +37 |
|||||||||
| n7 | +20 +8 |
+25 +10 |
+30 +12 |
+36 +15 |
+42 +17 |
+50 +20 |
+58 +23 |
+67 +27 |
+77 +31 |
+86 +34 |
+94 +37 |
|||||||||
| p5 | +17 +12 |
+21 +15 |
+26 +18 |
+31 +22 |
+37 +26 |
+45 +32 |
+52 +37 |
+61 +43 |
+70 +50 |
+79 +56 |
+87 +62 |
|||||||||
| p6 | +20 +12 |
+24 +15 |
+29 +18 |
+35 +22 |
+42 +26 |
+51 +32 |
+59 +37 |
+68 +43 |
+79 +50 |
+88 +56 |
+98 +62 |
|||||||||
| r6 | +23 +15 |
+28 +19 |
+34 +23 |
+41 +28 |
+50 +34 |
+60 +41 |
+62 +43 |
+73 +51 |
+76 +54 |
+88 +63 |
+90 +65 |
+93 +68 |
+106 +77 |
+109 +80 |
+113 +84 |
+126 +94 |
+130 +98 |
+144 +108 |
+150 +114 |
|
ISO Hole Tolerances
| ISO Tolerances for Holes (ISO 286-2) | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Nominal Shaft Sizes (mm) | ||||||||||||||||||||
| over | 3 | 6 | 10 | 18 | 30 | 40 | 50 | 65 | 80 | 100 | 120 | 140 | 160 | 180 | 200 | 225 | 250 | 280 | 315 | 355 |
| inc. | 6 | 10 | 18 | 30 | 40 | 50 | 65 | 80 | 100 | 120 | 140 | 160 | 180 | 200 | 225 | 250 | 280 | 315 | 355 | 400 |
| micrometres | ||||||||||||||||||||
| E6 | +28 +20 |
+34 +25 |
+43 +32 |
+53 +40 |
+66 +50 |
+79 +60 |
+94 +72 |
+110 +85 |
+129 +100 |
+142 +110 |
+161 +125 |
|||||||||
| E7 | +32 +20 |
+40 +25 |
+50 +32 |
+61 +40 |
+75 +50 |
+90 +60 |
+107 +72 |
+125 +85 |
+146 +100 |
+162 +110 |
+185 +125 |
|||||||||
| E11 | +95 +20 |
+115 +25 |
+142 +32 |
+170 +40 |
+210 +50 |
+250 +60 |
+292 +72 |
+335 +85 |
+390 +100 |
+430 +110 |
+485 +125 |
|||||||||
| E12 | +140 +20 |
+175 +25 |
+212 +32 |
+250 +40 |
+300 +50 |
+360 +60 |
+422 +72 |
+485 +85 |
+560 +100 |
+630 +110 |
+695 +125 |
|||||||||
| E13 | +200 +20 |
+245 +25 |
+302 +32 |
+370 +40 |
+440 +50 |
+520 +60 |
+612 +72 |
+715 +85 |
+820 +100 |
+920 +110 |
+1015 +125 |
|||||||||
| F6 | +18 +10 |
+22 +13 |
+27 +16 |
+33 +20 |
+41 +25 |
+49 +30 |
+58 +36 |
+68 +43 |
+79 +50 |
+88 +56 |
+98 +62 |
|||||||||
| F7 | +22 +10 |
+28 +13 |
+34 +16 |
+41 +20 |
+50 +25 |
+60 +30 |
+71 +36 |
+83 +43 |
+96 +50 |
+108 +56 |
+119 +62 |
|||||||||
| F8 | +28 +10 |
+35 +13 |
+43 +16 |
+53 +20 |
+64 +25 |
+76 +30 |
+90 +36 |
+106 +43 |
+122 +50 |
+137 +56 |
+151 +62 |
|||||||||
| G6 | +12 +4 |
+14 +5 |
+17 +6 |
+20 +7 |
+25 +9 |
+29 +10 |
+34 +12 |
+39 +14 |
+44 +15 |
+49 +17 |
+54 +18 |
|||||||||
| G7 | +16 +4 |
+20 +5 |
+24 +6 |
+28 +7 |
+34 +9 |
+40 +10 |
+47 +12 |
+54 +14 |
+61 +15 |
+69 +17 |
+75 +18 |
|||||||||
| G8 | +22 +4 |
+27 +5 |
+33 +6 |
+40 +7 |
+48 +9 |
+56 +10 |
+66 +12 |
+77 +14 |
+87 +15 |
+98 +17 |
+107 +18 |
|||||||||
| H6 | +8 0 |
+9 0 |
+11 0 |
+13 0 |
+16 0 |
+19 0 |
+22 0 |
+25 0 |
+29 0 |
+32 0 |
+36 0 |
|||||||||
| H7 | +12 0 |
+15 0 |
+18 0 |
+21 0 |
+25 0 |
+30 0 |
+35 0 |
+40 0 |
+46 0 |
+52 0 |
+57 0 |
|||||||||
| H8 | +18 0 |
+22 0 |
+27 0 |
+33 0 |
+39 0 |
+46 0 |
+54 0 |
+63 0 |
+72 0 |
+81 0 |
+89 0 |
|||||||||
| H9 | +30 0 |
+36 0 |
+43 0 |
+52 0 |
+62 0 |
+74 0 |
+87 0 |
+100 0 |
+115 0 |
+130 0 |
+140 0 |
|||||||||
| H10 | +48 0 |
+58 0 |
+70 0 |
+84 0 |
+100 0 |
+120 0 |
+140 0 |
+160 0 |
+185 0 |
+210 0 |
+230 0 |
|||||||||
| H11 | +75 0 |
+90 0 |
+110 0 |
+130 0 |
+160 0 |
+190 0 |
+220 0 |
+250 0 |
+290 0 |
+320 0 |
+360 0 |
|||||||||
| J6 | +5 -3 |
+5 -4 |
+6 -5 |
+8 -5 |
+10 -6 |
+13 -6 |
+16 -6 |
+18 -7 |
+22 -7 |
+25 -7 |
+29 -7 |
|||||||||
| J7 | +6 -6 |
+8 -7 |
+10 -8 |
+12 -9 |
+14 -11 |
+18 -12 |
+22 -13 |
+26 -14 |
+30 -16 |
+36 -16 |
+39 -18 |
|||||||||
| J8 | +10 -8 |
+12 -10 |
+15 -12 |
+20 -13 |
+24 -15 |
+28 -18 |
+34 -20 |
+41 -22 |
+47 -25 |
+55 -26 |
+60 -29 |
|||||||||
| JS6 | +4 -4 |
+4.5 -4.5 |
+5.5 -5.5 |
+6.5 -6.5 |
+8 -8 |
+9.5 -9.5 |
+11 -11 |
+12.5 -12.5 |
+14.5 -14.5 |
+16 -16 |
+18 -18 |
|||||||||
| JS7 | +6 -6 |
+7.5 -7.5 |
+9 -9 |
+10.5 -10.5 |
+12.5 -12.5 |
+15 -15 |
+17.5 -17.5 |
+20 -20 |
+23 -23 |
+26 -26 |
+28.5 -28.5 |
|||||||||
| JS8 | +9 -9 |
+11 -11 |
+13.5 -13.5 |
+16.5 -16.5 |
+19.5 -19.5 |
+23 -23 |
+27 -27 |
+31.5 -31.5 |
+36 -36 |
+40.5 -40.5 |
+44.5 -44.5 |
|||||||||
| K6 | +2 -6 |
+2 -6 |
+2 -9 |
+2 -11 |
+3 -13 |
+4 -15 |
+4 -18 |
+4 -21 |
+5 -24 |
+5 -27 |
+7 -29 |
|||||||||
| K7 | +3 -9 |
+5 -10 |
+6 -12 |
+6 -15 |
+7 -18 |
+9 -21 |
+10 -25 |
+12 -28 |
+13 -33 |
+16 -36 |
+17 -40 |
|||||||||
| K8 | +5 -13 |
+6 -16 |
+8 -19 |
+10 -23 |
+12 -27 |
+14 -32 |
+16 -38 |
+20 -43 |
+22 -50 |
+25 -56 |
+28 -61 |
|||||||||
| M6 | -1 -9 |
-3 -12 |
-4 -15 |
-4 -17 |
-4 -20 |
-5 -24 |
-6 -28 |
-8 -33 |
-8 -37 |
-9 -41 |
-10 -46 |
|||||||||
| M7 | 0 -12 |
0 -15 |
0 -18 |
0 -21 |
0 -25 |
0 -30 |
0 -35 |
0 -40 |
0 -46 |
0 -52 |
0 -57 |
|||||||||
| M8 | +2 -16 |
+1 -21 |
+2 -25 |
+4 -29 |
+5 -34 |
+5 -41 |
+6 -48 |
+8 -55 |
+9 -63 |
+9 -72 |
+11 -78 |
|||||||||
| N6 | -5 -13 |
-7 -16 |
-9 -20 |
-11 -24 |
-12 -28 |
-14 -33 |
-16 -38 |
-20 -45 |
-22 -51 |
-25 -57 |
-26 -62 |
|||||||||
| N7 | -4 -16 |
-4 -19 |
-5 -23 |
-7 -28 |
-8 -33 |
-9 -39 |
-10 -45 |
-12 -52 |
-14 -60 |
-14 -66 |
-16 -73 |
|||||||||
| N8 | -2 -20 |
-3 -25 |
-3 -30 |
-3 -36 |
-3 -42 |
-4 -50 |
-4 -58 |
-4 -67 |
-5 -77 |
-5 -86 |
-5 -94 |
|||||||||
| P6 | -9 -17 |
-12 -21 |
-15 -26 |
-18 -31 |
-21 -37 |
-26 -45 |
-30 -52 |
-36 -61 |
-41 -70 |
-47 -79 |
-51 -87 |
|||||||||
| P7 | -8 -20 |
-9 -24 |
-11 -29 |
-14 -35 |
-17 -42 |
-21 -51 |
-24 -59 |
-28 -68 |
-33 -79 |
-36 -88 |
-41 -98 |
|||||||||
| P8 | -12 -30 |
-15 -37 |
-18 -45 |
-22 -55 |
-26 -65 |
-32 -78 |
-37 -91 |
-43 -106 |
-50 -122 |
-56 -137 |
-62 -151 |
|||||||||
| R6 | -12 -20 |
-16 -25 |
-20 -31 |
-24 -37 |
-29 -45 |
-35 -54 |
-37 -56 |
-44 -66 |
-47 -69 |
-56 -81 |
-58 -83 |
-61 -86 |
-68 -97 |
-71 -100 |
-75 -104 |
-85 -117 |
-89 -121 |
-97 -133 |
-103 -139 |
|
| R7 | -11 -23 |
-13 -28 |
-16 -34 |
-20 -41 |
-25 -50 |
-30 -60 |
-32 -62 |
-38 -73 |
-41 -76 |
-48 -88 |
-50 -90 |
-53 -93 |
-60 -106 |
-63 -109 |
-67 -113 |
-74 -126 |
-78 -130 |
-87 -144 |
-93 -150 |
|
Clearance Descriptions
| Description | Hole Tol. | Shaft tol. |
|---|---|---|
| Loose fit | H11 | c11 |
| Free running | H9 | d9 |
| Easy running | H8 | f8 |
| Sliding fit | H7 | g6 |
| Close clearance | H8 | f7 |
| Location clearance | H7 | h6 |
| Slight interference | H7 | k6 |
| Transition | H7 | n6 |
| Press fit | H7 | p6 |
| Medium fit | H7 | s6 |
| Force fit | H7 | u6 |
Errors and Omissions Excluded
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