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 -140 -60 -20 -20 -14 -14 -14 -6 -6 -8 -2 -2 0 0 0 0 0 +4 +6 +6 +8 +10 +12 +16 +20 +24 +26 +2 +4 +6 +10 +14 Q Q 3 ±2 ±3 ±5 -165 -85 -34 -45 -24 -28 -39 -12 -16 -20 -6 -8 -4 -6 -10 -14 -25 0 0 +2 +18 +20 -140 -70 -30 -30 -20 -20 -20 -10 -10 -10 -4 -4 0 0 0 0 0 +6 +9 +9 +12 +16 +20 +23 +27 +31 +36 +4 +4 +8 +12 +15 +19 Q 3 6 ±2.5 ±4 ±6 -170 -100 -48 -60 -32 -38 -50 -18 -22 -28 -9 -12 -5 -8 -12 -18 -30 +1 +1 +23 +28 -150 -80 -40 -40 -25 -25 -25 -13 -13 -13 -5 -5 0 0 0 0 0 +7 +10 +12 +15 +19 +24 +28 +32 +37 +43 +1 +1 +6 +6 +10 +15 +19 +23 Q 6 10 ±3 ±4.5 ±7.5 -186 -116 -62 -76 -40 -47 -61 -22 -28 -35 -11 -14 -6 -9 -15 -22 -36 +28 +34 +51 10 14 +40 -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 +1 +1 +7 +7 +12 +18 +23 +28 Q ±4 ±5.5 ±9 -193 -138 -77 -93 -50 -59 -75 -27 -34 -43 -14 -17 -8 -11 -18 -27 -43 +33 +56 14 18 +45 +54 +67 18 24 Q +41 +54 -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 ±4.5 ±6.5 ±10.5 -212 -162 -98 -117 -61 -73 -92 -33 -41 -53 -16 -20 -9 -13 -21 -33 -52 +2 +2 +8 +8 +15 +22 +28 +35 +54 +61 +77 24 30 +41 +48 +64 -170 -120 +64 +76 30 40 -232 -182 +48 +60 -80 -80 -50 -50 -50 -25 -25 -25 -9 -9 0 0 0 0 0 +13 +18 +20 +25 +33 +42 +50 +59 -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 -180 -130 +70 +86 40 50 -242 -192 +54 +70 -190 -140 +60 +72 +85 +106 50 65 -264 -214 +41 +53 +66 +87 -100 -100 -60 -60 -60 -30 -30 -30 -10 -10 0 0 0 0 0 +15 +21 +24 +30 +39 +51 -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 -200 -150 +62 +78 +94 +121 65 80 -274 -224 +43 +59 +75 +102 -220 -170 +73 +93 +113 +146 80 100 -307 -257 +51 +71 +91 +124 -120 -120 -72 -72 -72 -36 -36 -36 -12 -12 0 0 0 0 0 +18 +25 +28 +35 +45 +59 -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 -240 -180 +76 +101 +126 +166 100 120 -327 -267 +54 +79 +104 +144 -260 -200 +88 +117 +147 120 140 -360 -300 +63 +92 +122 -280 -210 -145 -145 -85 -85 -85 -43 -43 -43 -14 -14 0 0 0 0 0 +21 +28 +33 +40 +52 +68 +90 +125 +159 +3 +3 +15 +15 +27 +43 +65 +100 +134 Q Q 140 160 ±9 ±12.5 ±20 -380 -310 -208 -245 -125 -148 -185 -68 -83 -106 -32 -39 -18 -25 -40 -63 -100 -310 -230 +93 +133 +171 160 180 -410 -330 +68 +108 +146 -340 -240 +106 +151 180 200 -455 -355 +77 +122 -380 -260 -170 -170 -100 -100 -100 -50 -50 -50 -15 -15 0 0 0 0 0 +24 +33 +37 +46 +60 +79 +109 +159 +4 +4 +17 +17 +31 +50 +80 +130 Q Q Q 200 225 ±10 ±14.5 ±23 -495 -375 -242 -285 -146 -172 -215 -79 -96 -122 -35 -44 -20 -29 -46 -72 -115 -420 -280 +113 +169 225 250 -535 -395 +84 +140 -480 -300 +126 250 280 -610 -430 +94 -190 -190 -110 -110 -110 -56 -56 -56 -17 -17 0 0 0 0 0 +27 +36 +43 +52 +66 +88 -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 -540 -330 +130 280 315 N 315 355 -670 -460 -600 -360 +98 +144 Technical Guidance / -740 -500 +108 -210 -210 -125 -125 -125 -62 -62 -62 -18 -18 0 0 0 0 0 +29 +40 +46 +57 +73 +98 ±12.5 ±18 ±28.5 Q Q Q Q References -299 -350 -182 -214 -265 -98 -119 -151 -43 -54 -25 -36 -57 -89 -140 +4 +4 +21 +21 +37 +62 -680 -400 +150 355 400 -820 -540 +114 -760 -440 +166 400 450 -915 -595 +126 -230 -230 -135 -135 -135 -68 -68 -68 -20 -20 0 0 0 0 0 +32 +45 +50 +63 +80 +108 -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 -840 -480 +172 450 500 -995 -635 +132 N36