References ■ Dimensional Tolerances for Regularly Used Fits [Taken from JIS B 0401 (1999)] ● Dimensional Tolerances for Regularly Used Shaft Fits Base Dimension Tolerance Zone Class of Shaft Units μm (mm) More Max. b9 c9 d8 d9 e7 e8 e9 f6 f7 f8 g5 g6 h5 h6 h7 h8 h9 js5 js6 js7 k5 k6 m5 m6 n6 p6 r6 s6 t6 u6 x6 than Q 3 -140 -60 -20 -20 -14 -14 -14 -6 -6 -8 -2 -2 0 0 0 0 0 ±2 ±3 ±5 +4 +6 +6 +8 +10 +12 +16 +20 Q +24 +26 -165 -85 -34 -45 -24 -28 -39 -12 -16 -20 -6 -8 -4 -6 -10 -14 -25 0 0 +2 +2 +4 +6 +10 +14 +18 +20 3 6 -140 -70 -30 -30 -20 -20 -20 -10 -10 -10 -4 -4 0 0 0 0 0 ±2.5 ±4 ±6 +6 +9 +9 +12 +16 +20 +23 +27 Q +31 +36 -170 -100 -48 -60 -32 -38 -50 -18 -22 -28 -9 -12 -5 -8 -12 -18 -30 +1 +1 +4 +4 +8 +12 +15 +19 +23 +28 6 10 -150 -80 -40 -40 -25 -25 -25 -13 -13 -13 -5 -5 0 0 0 0 0 ±3 ±4.5 ±7.5 +7 +10 +12 +15 +19 +24 +28 +32 Q +37 +43 -186 -116 -62 -76 -40 -47 -61 -22 -28 -35 -11 -14 -6 -9 -15 -22 -36 +1 +1 +6 +6 +10 +15 +19 +23 +28 +34 10 14 +51 -150 -95 -50 -50 -32 -32 -32 -16 -16 -16 -6 -6 0 0 0 0 0 +9 +12 +15 +18 +23 +29 +34 +39 +44 +40 -193 -138 -77 -93 -50 -59 -75 -27 -34 -43 -14 -17 -8 -11 -18 -27 -43 ±4 ±5.5 ±9 +1 +1 +7 +7 +12 +18 +23 +28 Q +33 14 18 +56 +45 18 24 Q +54 +67 -160 -110 -65 -65 -40 -40 -40 -20 -20 -20 -7 -7 0 0 0 0 0 +11 +15 +17 +21 +28 +35 +41 +48 +41 +54 -212 -162 -98 -117 -61 -73 -92 -33 -41 -53 -16 -20 -9 -13 -21 -33 -52 ±4.5 ±6.5 ±10.5 +2 +2 +8 +8 +15 +22 +28 +35 24 30 +54 +61 +77 +41 +48 +64 30 40 -170 -120 +64 +76 -232 -182 -80 -80 -50 -50 -50 -25 -25 -25 -9 -9 0 0 0 0 0 +13 +18 +20 +25 +33 +42 +50 +59 +48 +60 -119 -142 -75 -89 -112 -41 -50 -64 -20 -25 -11 -16 -25 -39 -62 ±5.5 ±8 ±12.5 +2 +2 +9 +9 +17 +26 +34 +43 Q 40 50 -180 -130 +70 +86 -242 -192 +54 +70 50 65 -190 -140 +60 +72 +85 +106 -264 -214 -100 -100 -60 -60 -60 -30 -30 -30 -10 -10 0 0 0 0 0 +15 +21 +24 +30 +39 +51 +41 +53 +66 +87 -146 -174 -90 -106 -134 -49 -60 -76 -23 -29 -13 -19 -30 -46 -74 ±6.5 ±9.5 ±15 +2 +2 +11 +11 +20 +32 Q 65 80 -200 -150 +62 +78 +94 +121 -274 -224 +43 +59 +75 +102 80 100 -220 -170 +73 +93 +113 +146 -307 -257 -120 -120 -72 -72 -72 -36 -36 -36 -12 -12 0 0 0 0 0 +18 +25 +28 +35 +45 +59 +51 +71 +91 +124 -174 -207 -107 -126 -159 -58 -71 -90 -27 -34 -15 -22 -35 -54 -87 ±7.5 ±11 ±17.5 +3 +3 +13 +13 +23 +37 Q 100 120 -240 -180 +76 +101 +126 +166 -327 -267 +54 +79 +104 +144 120 140 -260 -200 +88 +117 +147 -360 -300 +63 +92 +122 140 160 -280 -210 -145 -145 -85 -85 -85 -43 -43 -43 -14 -14 0 0 0 0 0 ±9 ±12.5 ±20 +21 +28 +33 +40 +52 +68 +90 +125 +159 Q Q -380 -310 -208 -245 -125 -148 -185 -68 -83 -106 -32 -39 -18 -25 -40 -63 -100 +3 +3 +15 +15 +27 +43 +65 +100 +134 160 180 -310 -230 +93 +133 +171 -410 -330 +68 +108 +146 180 200 -340 -240 +106 +151 -455 -355 +77 +122 200 225 -380 -260 -170 -170 -100 -100 -100 -50 -50 -50 -15 -15 0 0 0 0 0 ±10 ±14.5 ±23 +24 +33 +37 +46 +60 +79 +109 +159 Q Q Q -495 -375 -242 -285 -146 -172 -215 -79 -96 -122 -35 -44 -20 -29 -46 -72 -115 +4 +4 +17 +17 +31 +50 +80 +130 225 250 -420 -280 +113 +169 -535 -395 +84 +140 250 280 -480 -300 +126 -610 -430 -190 -190 -110 -110 -110 -56 -56 -56 -17 -17 0 0 0 0 0 +27 +36 +43 +52 +66 +88 +94 -271 -320 -162 -191 -240 -88 -108 -137 -40 -49 -23 -32 -52 -81 -130 ±11.5 ±16 ±26 +4 +4 +20 +20 +34 +56 Q Q Q Q N 280 315 -540 -330 +130 -670 -460 +98 Technical Guidance / 315 355 -600 -360 +144 References -740 -500 -210 -210 -125 -125 -125 -62 -62 -62 -18 -18 0 0 0 0 0 +29 +40 +46 +57 +73 +98 +108 -299 -350 -182 -214 -265 -98 -119 -151 -43 -54 -25 -36 -57 -89 -140 ±12.5 ±18 ±28.5 +4 +4 +21 +21 +37 +62 Q Q Q Q 355 400 -680 -400 +150 -820 -540 +114 400 450 -760 -440 +166 -915 -595 -230 -230 -135 -135 -135 -68 -68 -68 -20 -20 0 0 0 0 0 +32 +45 +50 +63 +80 +108 +126 -327 -385 -198 -232 -290 -108 -131 -165 -47 -60 -27 -40 -63 -97 -155 ±13.5 ±20 ±31.5 +5 +5 +23 +23 +40 +68 Q Q Q Q 450 500 -840 -480 +172 -995 -635 +132 N36