References
■ Dimensional Tolerance of Standard Fittings [Excerpt from JIS B 0401 (1999)] ● Dimensional Tolerance Used for Shafts of Standard Fittings
Classification of Reference Dimensions ( mm )
Shaft Tolerance Class
Unit: μm
or greater or less 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 — 3 ±2 ±3 ±5
+4 0 +6 +1 +7 +1
+6 0 +9 +1
+6 +2 +9 +4
+8 +2
+10 +4 +16 +8 +19 +10
+12 +6 +20 +12 +24 +15
+16 +10 +23 +15 +28 +19
+20 +14 — +27 +19 — +32 +23 —
+24 +18 +31 +23 +37 +28
+26 +20 +36 +28 +43 +34 +51 +40 +56 +45 +67 +54 +77 +64
-140 -165 -140 -170 -150 -186
-60 -85
-20 -34 -30 -48 -40 -62
-20 -45 -30 -60 -40 -76
-14 -24 -20 -32 -25 -40
-14 -28 -20 -38 -25 -47
-14 -39 -20 -50 -25 -61
-6 -12 -10 -18 -13 -22
-6 -16 -10 -22 -13 -28
-8 -20 -10 -28 -13 -35
-2 -6 -4 -9
-2 -8
0 -4 0 -5 0 -6
0 -6 0 -8 0 -9
0 -10 0 -12 0 -15
0 -14 0 -18 0 -22
0 -25 0 -30 0 -36
+12 +4 +15 +6
-70 -100 -80 -116
-4 -12 -5 -14
3 6
±2.5 ±4 ±6
N
+10 +1
+12 +6
-5 -11
6 10
±3 ±4.5 ±7.5
10 14
+9 +1
+12 +1
+15 +7
+18 +7
+23 +12
+29 +18
+34 +23
+39 +28 —
+44 +33
-150 -193
-95 -138
-50 -77
-50 -93
-32 -50
-32 -59
-32 -75
-16 -27
-16 -34
-16 -43
-6 -14
-6 -17
0 -8
0 -11
0 -18
0 -27
0 -43
±4 ±5.5 ±9
14 18
— +54 +41
18 24
+11 +2
+15 +2
+17 +8
+21 +8
+28 +15
+35 +22
+41 +28
+48 +35
-160 -212
-110 -162
-65 -98
-65 -117
-40 -61
-40 -73
-40 -92
-20 -33
-20 -41
-20 -53
-7 -16
-7 -20
0 -9
0 -13
0 -21
0 -33
0 -52
±4.5 ±6.5 ±10.5
+54 +41 +64 +48 +70 +54 +85 +66 +94 +75
+61 +48 +76 +60 +86 +70
24 30
-170 -232 -180 -242 -190 -264 -200 -274 -220 -307 -240 -327 -260 -360 -280 -380 -310 -410 -340 -455 -380 -495 -420 -535 -480 -610 -540 -670 -600 -740 -680 -820 -760 -915 -840 -995
-120 -182 -130 -192 -140 -214 -150 -224 -170 -257 -180 -267 -200 -300 -210 -310 -230 -330 -240 -355 -260 -375 -280 -395 -300 -430 -330 -460 -360 -500 -400 -540 -440 -595 -480 -635
30 40
+25 +9
+33 +17
+13 +2
+18 +2
+20 +9
+42 +26
+50 +34
+59 +43
-80 -119
-80 -142
-50 -75
-50 -89
-50 -112
-25 -41
-25 -50
-25 -64
-9 -20
-9 -25
0 -11
0 -16
0 -25
0 -39
0 -62
—
±5.5 ±8 ±12.5
40 50
+60 +41 +62 +43 +73 +51 +76 +54 +88 +63 +90 +65 +93 +68
+72 +53 +78 +59 +93 +71
+106 +87 +121 +102 +146 +124 +166 +144
50 65
+15 +2
+21 +2
+24 +11
+30 +11
+39 +20
+51 +32
-100 -146
-100 -174
-60 -90
-60 -106
-60 -134
-30 -49
-30 -60
-30 -76
-10 -23
-10 -29
0 -13
0 -19
0 -30
0 -46
0 -74
—
±6.5 ±9.5 ±15
65 80
+113 +91 +126 +104 +147 +122 +159 +134 +171 +146
80 100
0 -35
0 -54
0 -87
+18 +3
+25 +3
+28 +13
+35 +13
+45 +23
+59 +37
-120 -174
-120 -207
-72 -107
-72 -126
-72 -159
-36 -58
-36 -71
-36 -90
-12 -27
-12 -34
0 -15
0 -22
—
±7.5 ±11 ±17.5
+101 +79 +117 +92 +125 +100 +133 +108 +151 +122 +159 +130 +169 +140
100 120
120 140
+21 +3
+28 +3
+33 +15
+40 +15
+52 +27
+68 +43
-145 -208
-145 -245
-85 -125
-85 -148
-85 -185
-43 -68
-43 -83
-43 -106
-14 -32
-14 -39
0 -18
0 -25
0 -40
0 -63
0 -100
— —
140 160
±9 ±12.5 ±20
160 180
+106 +77 +109 +80 +113 +84 +126 +94 +130 +98 +144 +108 +150 +114 +166 +126 +172 +132
180 200
+24 +4
+33 +4
+37 +17
+46 +17
+60 +31
+79 +50
-170 -242
-170 -285
-100 -146
-100 -172
-100 -215
-50 -79
-50 -96
-50 -122
-15 -35
-15 -44
0 -20
0 -29
0 -46
0 -72
0 -115
— — —
200 225
±10 ±14.5 ±23
225 250
250 280
+27 +4
+36 +4
+43 +20
+52 +20
+66 +34
+88 +56
-190 -271
-190 -320
-110 -162
-110 -191
-110 -240
-56 -88
-56 -108
-56 -137
-17 -40
-17 -49
0 -23
0 -32
0 -52
0 -81
0 -130
— — — —
±11.5 ±16 ±26
280 315
315 355
+29 +4
+40 +4
+46 +21
+57 +21
+73 +37
+98 +62
-210 -299
-210 -350
-125 -182
-125 -214
-125 -265
-62 -98
-62 -119
-62 -151
-18 -43
-18 -54
0 -25
0 -36
0 -57
0 -89
0 -140
— — — —
±12.5 ±18 ±28.5
355 400
400 450
+32 +5
+45 +5
+50 +23
+63 +23
+80 +40
+108 +68
-230 -327
-230 -385
-135 -198
-135 -232
-135 -290
-68 -108
-68 -131
-68 -165
-20 -47
-20 -60
0 -27
0 -40
0 -63
0 -97
0 -155
— — — —
±13.5 ±20 ±31.5
450 500
N74
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