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
+4 0
+6 0
+6 +2
+8 +2
+10 +4
+12 +6
+16 +10
+20 +14
+24 +18
+26 +20
-140 -165
-60 -85
-20 -34
-20 -45
-14 -24
-14 -28
-14 -39
-6 -12
-6 -16
-8 -20
-2 -6
-2 -8
0 -4
0 -6
0 -10
0 -14
0 -25
—
—
±2 ±3 ±5
3
+12 +4
+16 +8
+9 +4
+27 +19
+9 +1
+23 +15
+6 +1
+20 +12
+31 +23
+36 +28
-140 -170
-70 -100
-30 -48
-30 -60
-20 -32
-20 -38
-20 -50
-10 -18
-10 -22
-10 -28
-4 -9
-4 -12
0 -5
0 -8
0 -12
0 -18
0 -30
—
±2.5 ±4 ±6
3 6
N
+7 +1
+10 +1
+12 +6
+15 +6
+19 +10
+24 +15
+28 +19
+32 +23
+37 +28
+43 +34
-150 -186
-80 -116
-40 -62
-40 -76
-25 -40
-25 -47
-25 -61
-13 -22
-13 -28
-13 -35
-5 -11
-5 -14
0 -6
0 -9
0 -15
0 -22
0 -36
—
±3 ±4.5 ±7.5
6 10
+51 +40
10 14
+9 +1
+12 +1
+15 +7
+18 +7
+23 +12
+29 +18
+34 +23
+39 +28
+44 +33
-6 -14
-6 -17
0 -8
0 -11
0 -18
0 -27
0 -43
-16 -43
-16 -34
-16 -27
-32 -75
-32 -59
-32 -50
-50 -93
-95 -138
-50 -77
-150 -193
—
±4 ±5.5 ±9
+56 +45
14 18
+54 +41
+67 +54
—
18 24
+48 +35
+41 +28
+11 +2
+15 +2
+17 +8
+21 +8
+28 +15
+35 +22
-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
+61 +48
+54 +41
+77 +64
24 30
+64 +48
+76 +60
-170 -232
-120 -182
30 40
+25 +9
+33 +17
+59 +43
+50 +34
+13 +2
+18 +2
+20 +9
+42 +26
-25 -64
-9 -20
-9 -25
0 -11
0 -16
0 -25
0 -39
0 -62
-25 -50
-50 -112
-25 -41
-50 -89
-80 -119
-80 -142
-50 -75
—
±5.5 ±8 ±12.5
+86 +70
+70 +54
-180 -242
-130 -192
40 50
+60 +41
+72 +53
+85 +66
+106 +87
-190 -264
-140 -214
50 65
+39 +20
+30 +11
0 -13
0 -19
0 -30
0 -46
0 -74
+15 +2
+21 +2
+24 +11
+51 +32
-10 -29
-10 -23
-30 -76
-30 -60
-60 -106
-60 -134
-30 -49
-60 -90
-100 -174
-100 -146
—
±6.5 ±9.5 ±15
+121 +102
+94 +75
+78 +59
+62 +43
-200 -274
-150 -224
65 80
+113 +91
+146 +124
+93 +71
+73 +51
-220 -307
-170 -257
80 100
0 -35
0 -54
0 -87
+18 +3
+25 +3
+28 +13
+35 +13
+45 +23
+59 +37
0 -15
0 -22
-12 -34
-12 -27
-36 -90
-120 -174
-120 -207
-72 -107
-72 -126
-72 -159
-36 -58
-36 -71
—
±7.5 ±11 ±17.5
+76 +54
+101 +79
+126 +104
+166 +144
-180 -267
-240 -327
100 120
+88 +63
+117 +92
+147 +122
-200 -300
-260 -360
120 140
+52 +27
+159 +134
+40 +15
+125 +100
+21 +3
+28 +3
+33 +15
+68 +43
+90 +65
-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
-210 -310
-280 -380
— —
±9 ±12.5 ±20
140 160
+171 +146
+133 +108
+93 +68
-230 -330
-310 -410
160 180
+106 +77
+151 +122
-240 -355
-340 -455
180 200
+60 +31
+46 +17
+24 +4
+33 +4
+37 +17
+79 +50
+109 +80
+159 +130
-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
-260 -375
-380 -495
— — —
±10 ±14.5 ±23
200 225
+113 +84
+169 +140
-420 -535
-280 -395
225 250
+126 +94
-480 -610
-300 -430
250 280
+66 +34
+52 +20
+27 +4
+36 +4
+43 +20
+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
+130 +98
-540 -670
-330 -460
280 315
+144 +108
-600 -740
-360 -500
315 355
0 -25
0 -36
0 -57
0 -89
0 -140
+29 +4
+40 +4
+46 +21
+57 +21
+73 +37
+98 +62
-18 -54
-62 -119
-62 -151
-18 -43
-62 -98
-125 -265
-125 -214
-125 -182
-210 -350
-210 -299
— — — —
±12.5 ±18 ±28.5
+150 +114
-400 -540
-680 -820
355 400
+166 +126
-440 -595
-760 -915
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
+172 +132
-480 -635
-840 -995
450 500
N74
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