is 7859 (1975): gauge allowances and manufacturing
TRANSCRIPT
Disclosure to Promote the Right To Information
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“!ान $ एक न' भारत का +नम-ण”Satyanarayan Gangaram Pitroda
“Invent a New India Using Knowledge”
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“Step Out From the Old to the New”
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“The Right to Information, The Right to Live”
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“Knowledge is such a treasure which cannot be stolen”
“Invent a New India Using Knowledge”
है”ह”ह
IS 7859 (1975): Gauge Allowances and ManufacturingTolerances for Plain Gauges for Inside Measurements for ISOFit Sizes (nominal size up to 500 mm) [PGD 25: EngineeringMetrology]
:: P . .
2 c-2
UDC 621.753.3 ( First’keprint MAR&l 1982 1
Indian Standard
IS : 7859 - 1976
m 1 I
GAUGE ALLOWANCES AND MANUFACTURING TOLERANCES FOR PLAIN GAUGES FOR INSIDE
MEASUREMENTS FOR IS0 FIT SIZES (NOMINAL SIZE UP TO 500 mm)
1. Scope - Lays down the gauge allowances and manufacturing tojerances for plain cylindrical ant flat plug gauges and spherical ended plain plug gauges for internal dimensions (holes) for IS0 fit sizes uf to 500 mm nominal size.
2. Symbols - Following symbols are used in this standard (see a/so Fig, 1):
Agn 2 Gauge allowance for GO member, new;
Ang = Gauge allowance for NO GO member;
Agw = Wear allowance for GO member, worn out;
Y = Margin, outside the GO workpiece limit, of the wear limit of gauges for holes;
z = Distance between centre of tolerance zone of new GO gauges for holes and GO workpiecr limit;
Note - For. values of y and z see Table 2 of IS : 3455-1971 ‘Gauging practice for plain workpieces (firs revision) .
rc = Safety zone provided for compensating measuring uncertainties of gauges for holes o nominal diameter above 180 mm ;
H = Tolerance on cylindrical plug or cylindrical bar gauges;
Hs = Tolerance on spherical ended plug gauges;
N = Nominal size of the workpiece;
T = Tolerance of the workpiece ;
G = Upper deviation of the workpiece;
K = Lower deviation of the workpiece.
3. Formulae for Determining Gauge Dimensions
Gauge Member Formulae Examples of Calculation
Cylindrical and Flat Plug Gauge Spherica\a;zed Plug
25 E9 100 H9 200 R7
GO member, new (NSAgn) i;* (25$0~049)10002 (loo+0 015)&O 003 (200-0~099)~0~003 5
=25~049+0~002 =100~015&0~003 =199~901~0~003 5
NO GO member W+ AW) q (25+0~092)&0~002 (100$0~067)~0~003 (200-0.063)&0~003 5
=25~092*0~002 =100~087&0~003 =199.937&0.003 5
GO member, worn out N+Agw 25+0.040 loot0 200-0~109
=25.040 ==1@0~000 = 199.891
*H.
? IS applicable for cylindrical and flat plug gauges. f-4
T plug gauges.
should be substituted for t In the formula for spherical ended
1. Disposition of Tolerance for Cylindrical and Flat Plug Gauges and Spherical Ended Plug ;auges - Figure 1 shows the disposition of tolerance for cylindrical and flat plug gauges and spherical snded plug gauges with relation to the workpiece tolerance.
1. Calculated Values - Calculated values (in pm) of the gauge allowances for cylindrical and flat plug lauges and spherical ended plug gauges for a few selected IS0 tolerance zones are given in Table 1 under A.
Adopted 10 October 1975 I-
8 May 1976. ISi I
Price Rs 13.z
INDlAh STANDARDS LNSTITUTION MANAK BHAVAN, 9 BAHADUR SHAH Z4FAR MARG
NEW DELHI llBOO2
.I - ._. .~ _ _. ___~.
1,
____
IS : 7859 - 1975
i i
0s Agw* o$
K /
t I I t t ZERO LINE
FOR SIZES UP TO 16Omm
* Ii* ;OR_iS-
-I -a
Ang*
,
FOR SIZES ABOVE 180mm 7
* For values in pm, see Table 1.
FIG. 1 DISPOSITION OF TOLERANCES
2
IS : 7859-1975
TABLE 1 GAUGE ALLOWANCES AND MANUFACTURING TOLERANCES FOR INSIDE MEASUREMENTS
( Clause 5 )
All values in pm.
I UPTO OVER, AND INCLUDING
3 6
6 10
10 18
18 30
30 40
40 50
50 65
65 80
80 100
100 120
120 140
140 160
160 180
180 200
200 225
225 / 250
TOLERANCE CLASS
iAUGE All Bll Cl1
An9 + 530 6.5 AWJ + 365 6.5 AW +340 -
An9 + 550 6.5 A9n -I- + 385 6.5 A9w + 360 - Aw t 600 7.5 AW -t 408 7.5 Aw + 380 -
An9 i tii 7.5 A9n 7.5 Aw -
-Ang + 710 Ago t 492 : Aorv + 460 -
An9 •I 770 B
Agn +552 9 AW + 520 -
An9 + 830 A9n + 612 :: Agw + 560 -- An9
lo Agn : % 10 AW t 670 -
m.g t '1020 A9n t 700 1:
h t 1545 12.5 AIZIT t 1250 12.5
i16i0 1 i
I
- I+359
--l 77 + 660 + (20
- 330 i
7 t 700 7 t 46il
+H + “s A - T --2- i-q 2%
;I: i’;i ; f
2.5 I 2-5 1 q : 145’ 62 ::i: z - + 70 - --
-3 2 3 2 : 'E s :
- /
;; +111 + +205 60 4 4 - - f:"5 +95 - -
4.5 3 + 240 4.5 3 4.5 3 + 129 4.5 3 - - + 110 - - 5*5 3.5 + 260 5.5 5.5 3.5 + 142 5.5 33:;
- - +120 - -_ 5.5 3.5 + 290 5.5 3.5 52
] c5 3-152 2 . 3.c
+ 130 --_
6.5 4 + 330 6.5 4 : % ;::: 4" - - - -
6.5 4 + 3-4 0 -
4 6.5 I + 175
i:: 4
- - + is0 - - 7.5 5 + 390 7.5 5 7.5 5 + 198 7.5 5 _- - + 170 - -
7.5 55
+ 400 7.5 7.5 t 208 7.5 55
t 180 -- -
9 I6 + 450 9
i 6 6 t 232 6 - t 200 - -
9 6 + 460 9 '6 9 I 6_ t242 9 6
t210 - - 9 16 + 480 6 9 16 t 262
z 6
- - + 230 - -
:oo ! 7 / 1
+ + 280 520 :: 77 - t 250 - -
:: : 7 7 t t 540 300 ;oo q - - I + 77n I- 1
: - - $290 - - 11.5 ! 8 t 605 11.5 8 11.5 j 8 t 345 11.5 8 - I - t315 - -
11.5 ! 8 + 635 11.5 11.5 6 t 375 11.5 i -.- t345 - -
12.5 ' 9 t 705 12.5 12.5 , 9 + 410 I 12.5 9'
! - - t375 - -
12.5 1 9 t 745 12.5 9 12.5 ; 9 t 450 !2.5 -9 -/- + 415 - -
13.5 10 13.5 j 10
+ 620 13.5 10 t 495 13.5 10
_:- t460 - -
13.5 13.5 :: : ix8
13.5 10 13.5 10
- - + 500 - -
1
(Conrinued)
3
IS : 7859 - 1975
TABLE 1 GAUGE ALLOWANCES AND MANUFACTURING TOLERANCES FOR INSIDE MEASUREMENTS -- Contd
ANCE CLASS NOMINAL SIZE
OVER
I - 1 3 1 i Ana 1 + 60 1 la251 - 1 + 78
k--t 1 Aqw It 3ciI--l--l+ 3ol- I-It 301--I-
6 __ Ang 1-t 76)1.251@75)+ 98~1*25~0~75~+133~3 12 10 1 Aa; 1 t 47 1 l-25 IO.75 1 t 47 I 1.25 IO*?5 1 t 54 I 3 I 2 <
Aqw t40 - - +40- - tL0 - - t 93 1.5 1 1
10 16
h t 120 1.5 t 160 4 2.5
Aw la5 ’ t 58 l-5 1 4 2*5 Agw : El -- +50- - t !60 --
Ans t 117 2 l-25 t 149 2 1.25 t 195 4=5 3 1R 30 I A.; I + 74 12 I 1.25 I t 74 I 2 Il.25 I + 04 I 4.5 I 3 a” .s
A9w 1 t 65 - 1 - ’ + 65 I-- 1 - 1 t 65 1 - 1 - --’ Ang i t ?42 12 1 1.25 1 t 180 12 Il.25 1 t 30 240 1 5.5 1 3.5
-_ 50 I Aan I t 91 12 Il.251 + 91 12 Il*25 I + 102 I 5.5 I 3.5 ’ A;w ‘t SO'---'---_I 80'-- I--‘+ 80(--l-
Agw t 100 - - t100 - - i-100 - - Ang t207 3 2 t260 3 2 t 340 7.5 5
80 120 Agn t135 3 2 t135 3 2 t 148 7-5 5 Agw t120 - - t12u - - + 120 - - Ang t245 4 2.5 t 305 I 2-5 +395 9 6
120 180 Am t163 L 2.5 t 163 4 2-S t 177 9 6 1 A.w I c 14s I - I - I i 145 I - I - I i 145 I - I -
180 t281 5 395 t 348 5 3.5 t450 10 7 t 191 5 3.5 t 194 5 3.5 t 210 10 7
Agw +174 - - t177 - - t190 - - 4 6 4 t 495 11.5 8
250 315 Ang t 314 6 +391 Agn t2146 4 t 217 6 4 t 235 11.5 8 Agw t 196 - - t 199 - - t 205 - -
315 400 i;: t 343 6-5 4.5 t 429 6.5 4.5 + 555 12’5 9 t 238 6.5 4.5 + 242 6.5 L-5 t 260 12.5 9
Agw t 217 - - t221 - - + 225 - -
2,“: + 376 795 5 t 466 7’5 5 t 610 13’5 10
400 500 t 262 7*5 5 + 267 7* 5 5 + 285 13.5 10 Aaw +. 239 - - +244 - - t250 - -
(Continued)
IS : 7859 - 1975
- 3
+ 3’ 6
-I- 17
I 10
-I- 47 6 + 28
+ 22 1.5 1 1.5 1 - -
t
- - + 20 - - + 20 - - 1.25 0.75 + 61 I.25 0.75 + 63 1.25 095 1.25 0.75 + 32 l-25 0.75 + 32 1.25 0.75 - - +25 - - + 25 - -
Agw Am Agn Aow h Aw Agw Ang Aw
+ 59 + 36 + 28 + 73 + 45 + 36
: 8569
.2 1.25
t 2 1.25 - -
120 180 An9 Aw Aw
180 250 2 Apw Am
250 315 Agn AP Ang
315 400 Agn Asw Aw
400 500 ;r Y
+ 5s
+ 126 -t 80
hz t 94 + 79 + 168 i 112 + 97 4 185 + 124 + 107 + 207 + 141 + 123 + 223 + 153 + 133
TABLE 1 GAUGE ALLOWANCES AND MANUFACTURING TOLERANCES FOR INSIDE MEASUREMENTS - Confd
NOMINAL SIZE TOLERANCE CLASS mm
GAUGE - E8 E9 El0
UP TO OVER AND
INCLUDING A
I- 2.5 l-5 2*5 1.5 -I-
+ 75 I.5 1 + 40 1.5 1 i-32 - - + 92 2 1.25 +49 2 1.25 +40 - - +112 2
:‘:: +612 . +50 - - + 134 2.5 1.5 + 73 2.5 1.5 +60 - - +159 3 2
.+873 2 +72 - - + 185 4 2.5 + 103 4 2-s +85 - - + 211 5 3.5 -cl21 5 3.5 +104 - - +234 6 +134 6 4”
+ 102 + 40 + 32 + 124 + 49 + 40 + 150 + 61 + 50 + 180 + 73 + 60 + 212
$+ F: + 245 + 103 + 85 -t 278 i 124 + 107 3 311 + 137
t- i.5 4.5
+ 119 - I -
+ 344 6.5 4.5 + 157 zf-tz-
gi:
(Continued)
c
5
IS : 7959 - 1975
TABLE 1 GAUGE ALLOWANCES AND MANUFACTURING TOLERANCES FOR. INSIDE MEASUREMENTS - Contd
NOMINAL SlZEl 1 TOLERANCE CLASS mm I t I I
-++1 - + 11 -+3. - -+6
- +2a 1.25 - + 40 - + 13 l-25 - + 16 -+7 -- + 10
D-75 + 35 l-25 0975 + 49 0.75 + 16 1.25 0.75 + 20 -+10 -- + 13 1 f43 1.5 1 + 59 1 + 20 1.5 1 + 24 -+12 - - + 16
1.25 -I- 53 2 1*25%25 2
1-25 + 72 1*25 + 29
-+16 - - +20
l-25+64 2 1.25 + 87 l-25 + 31 2 1.25 + 36 -++o - - +25 1*5 + 76 2.5 1.5 +104
+A3 l-5 + 37 2.5 -+25 -
2 +90 3 2 +44 3 -++o -
2.5 +106
2z ::; t
#
-
3.5 +118 3.5 +62 55 --I-47 -
l-5 - ijO
+ 2 +123 2 + 51
4 Ii70 I6 I
2.5 4" 2*5 --
t 55 33:; --
1 + ij --
4.5 +144 6.5 4~5 +195 4*5 + 78 6.5 :*5 + 9
I- - I
6
IS : 7859 - 1975
TABLE 1 GAUGE ALLOWANCES AND MANUFACTURING TOLERANCES FOR INSIDE MEASUREMENTS - Contd
(Continued)
7
IS : 7859 - 1975
TABLE 1 GAUGE ALLOWANCES AND MANUFAVURING TOLERANCES FOR INSIDE MEASUREMENTS,- Contd
I
NOMINAL SIZE ] mm
IGWGE
OVER 1 s;’ 1
I 1 Aaw
1 TOLERANCE CLASS I t
H6 H7
+ 1 0.6 - + 1.5 1 -, - - - 1.5 -
+8 0.75 - +12 1.25 + 1.5 0.75 - + 2 1.25 -, _ - - 1.5 -
: !*5 0.75 0.75 o-75 0.75 +1 + 5 2 1):;;
-1 - - - l-51 -
-3 - - I4 -
+27 3.5 3.5 +43 5 +5 35 3.5 + 7 5 -2 - - -3 -
+29 4 4 i-48 6
r ;:;g
1 1 -
1.25 1.25
1.25 1.25
1.5 I.5
2 2
;::
i.5 .
4 4
:::
T
j i
H8
frJ.1 +Hs A 2-2
+14 1 - +2 1 -3 - z
+18 1.2 5 - + 3 1.25 - -3 - -
+22 1’:“5 i’$i +3 ’ *
-3 - -
+ 27 l-5 + 4 105 1 -4 - -
+33 22 1.25 + 5 I-25 -4 - -
+ 2 1.25 +6 -5
1 1*25 -
+46 + 7
::“5 1.: .
-5 _ -
+54 3 2 +6 2 -6 3 -
+63 +9 : 22::: -6 - a
+68 5 +I2 s ::‘5 -3 -
+75 4 +14 ii b -3 - _
+82 65 b.5 +16 65 be5 -2 - -
+88 75 5 +18 7.5 5 -2 - -
8
IS : 7859 - 1975
TASLE 1 GAUGE ALLOWANCES AND MANUFACTURING TOLERANCES FOR INSIDE MEASUREMENTS - Contd
I
I NOMIN;~ SIZE1 1 TObERANCE CLASS
GAUGE/ , i-i9 HlO Hll
31 6
6 I 10
I 10 1 18
18 30 I
180
250 --I 315
315 400
t 400 500
Aon + 8 1.5 Agw 0 - Ang +52 2 Agn + 912 Agw 0 - Ang -f-62 2 Agn +11 2 Asw 0 - Ang -I- 74 2-5 Agn + 13 2.5 Agw 0 - Ang +87 3 Agn +15 3 Agw 0 -
k A;:
+100 4 + 16 4
Agw 0 - Ang +111 5 Asn +21 5
1 Agw 1 + 9 1 -
f!$ -A-
-
-
- --
-
-
-
1 1 -
1*25 l-25 -
1.25 1.25 -
l-5 1.5 -
2 2 -
2.5 295 -
::; -
L 4 4 -
485 4.5 -
5 5 -
A
4. 40 + 5
0 + 46 + 6
0
+ 58 + 7
0 _I- 79 + 8
0 1- 84 + 9
0 +100 + 11
0 ~- + 120 + 13
0 + 140 + 15
0
-k 160 + 18
0 + 178 + 24 + 7
+ 201 + 27 + 9 + 219 + 32 + 11 f236 + 37 + 14
I
- - (J - -_
1.251 -- 1.251 -
f 75 2-5, - + 12 2.5
- -1 "-I
i*ZSO*?5 i-90 3 2 1*55 0.75 +- 14 3 2 -- o- -
-El + 110 4 2*5 l-5 1 + 16 4 2.5 -- 0 - -
2 1.25 +130 4.5 3 2 1.25 + 19 4.5 3 -- o-- 2 1.25 +I60 S-5 3.5 2 l-25 + 22 5.5 3.5 - -.
! 0 - - ?*5 1.5 + 190 6-5 4 2.5 l-5 + 25 6.5 4 - - o- - 3 2 t220 7.5 5 3 2 + 28 7.5 5 - - 0 - .-
-~_ 4 2*5 f250 3 6 4 2.5 + 32 9 6 - - 0 - - 5 3-5 +280 10 7 5 3.5 + 40 10 7 -- +10 - -
6 4 + 305 11.5 8 6 4 + 45 lb5 8 -- +15 - - 6.5 4.5 t345 12.5 9 6.5 415 + ‘$3 12.5 9 -- -1-15 - -
7.5 5 -" t380 13*5 10 7e.5 5 + 55 13.5 10 -- +20 - -
1
9
.I
.
IS : 7859 - 1975
?ABLE 1 GAUGE ALLOWANCES AND MANUFACTURING TOLERANCES FOR INSIDE MEASUREMENTS - Conrd
NOMINAL SIZE 1 TOLERANCE CLASS mm I I I
-+71 - - 3 --5 1 -
-10 - -
Ana + 4 0*75 - i + 6 1*25 - + 9 1.25 - 3 I 6 1 A& 1: 2.5 1 0.75 1 - I : r, I 1.25 I - -
-
_ 1 _ 1 An9 I+ 4.5. I 0.75 ‘1 0.75 ! IAgw I-5 I- I-
6 10 Agn - 3 0*75 0.75 Agw - 5.5 _ - - g - -
Ana L 5.5 1 1 9 + ::i: 1 13.5 + 1.5 3.5 1 1 - 65 1 - 9.5 1.5 7 - --‘-11 - - -1P5 -
6.5 l-25 1.25 + 10.5 2 ‘l-25 + 16.5 2
I- - 7.5
I-- - 13.5 2 1.25 - 11.5 2
I I Aaw I- 8 - - - 20.5 -
1’ 9 I2 19.5
Ii%I--13.5 f 2 2
18 1 30 1 Ag; I- 4.5 1 1.25 i 1.25
1.25 1.25 1 -I. 12.5-I 2 11.2i7-. 30 .50 i+ ” I+8 l- 55 I 1025 I 1.25
80 I
:
1.25 1.25
1.25 l-25
I 1 Agw I- 1: z - 2 - Ii2.5 -21.5 fi - j - Li!j -33 5 - j -
12.5 2.5 2.5 + ;f 4 25 4 2.5 2,‘;; . : 180 An9
120 +
h - 8.5 2.5 2.5 Agw -15.5 - - (-24 I- I- j-37.51 - I-
Ang 1 + cz *
3.5. 3.5 1 + 2 0 1 5 1 3.5 1 + 32 I 5 ! 3.5 180 250 b I 3.5 I 3.5 I 1 I 6 I 5 I 3.5 I L 2& I 5 I 3.5
16.5 1-i 1 _ I-ii 1 I._ 1 -i 1-39 1 -_ 1 -:
13 I4 14 I+22 16 t4 \+34.5!6 14
Agw -
250 315 hg t::
%; L 4 Ll8 6 4 L26.5 6 i - - -29 - - - 43.5 - -
Ang f 14 4.5 4.5 +22.5 6.5 4.5 +37.5 6.5 4.5 315 400 Agn - 11 4.5 4.5 - l&5 6-5 4.5 - 28.5 6.5 4.5
Aw -20 - - - 30.5 - - - 46.5 - -
AA;: +15 5
: +24.5 7.5 5 + 39.5 7.5 5
400 500 -12 5 - 20.5 7.5 5 ‘- 30.5 7.5 5 Agw -22 ,-- - -3335 - - - 50.5 - -
(Continued)
10
IS : 7859 - 1975
TABLE i GAUGE AL‘LOWANCES AND MANUFACTURING io~~NcEs FOR INSIDE MEASUREMENTS-Cmtd
‘JOMINAL SIZE TOLERANCE CLASS mm
UPTO GAUGE K6 K7 K8
IVER . AND A 2; fy ii INCLUDING
A f2fF’ A +f”!$
Ang 0 0.6 - 0 1 _- 01 - 3 Agn 1; 0.6 - - 8.5 1 - -121 -
Agw - - - 11.5 - - -17 - -
- -
3 6
Al;g +2 0.775 -+ 3 1.25 + 5 1.25 -
Agn - 4.5 0.75 - 1.25 - l-25 - Agw -7 - - I '70.5 - _ -i 60 - _
Ang + 2 0.75 0.75 + 5 1.25 '$75 + 6 1.25 0.75 6 10 Agn - 5.5 0.75 0.75 - 8 1.25 0.75 - 13' I.25 0.75
’ Agw - 8 - L - 11.5 - - -19 - - - +2 1 1 +6 1.5 1 + 8 1.5 1
10 18 Ang Agn
1 $5 1 '1 - 9.5 t-5 1 -15 1.5 1
Agw _ _ -1L - - -23 - -
i-25 _.-
Ang +2 1.25 + 6 .2 1.25 ,-I- 10 2
30 1.25
18 Agn 1192.5 1.25 1.25 - 12 2 1.25 -18 2 1.25 Agw _ - -18 - - -27 - - Ang + 3 1.25 Vi5 ' + 7 2 1.25 +12 2 1.25
30 50 Agn - 10.5 1.25 1.25 .- 14.5 2 1.25 -21 2 1.25 Agw ,-15 - - -21 - - -32 _ _
t L 1.5 1.5 + 9 2.5 1.5 +14 2.5 1.5 50 80 :;: - 12.5 1.5 1.5 -l? 2.5 l-5 -25 2.5 1.5
Agw -17 - - -24 - - -37 - -
80 120 Ang + I 2 2 i-10 3 2 t163 2 Agn
-15 2 2 -20 3 2 -303 2
Agw -2' - - -29 - - .-Lb.- -
Ang $4 2.5 2.5 t 12 4 2.5 , t20 L 2-5 120 180 Agn - 17 2'5 2.5 -22 4 I 2.5 2-5
Agw -24 v' -31 G
- - -32 - - -49 - -
Ang + 3 3.5 3.5 +10 5 3.5 180 250
+18 5 Agn - 19 3.5 3.5 - 26 5 3.5 ;:5' Agw -26 - - -36 - - 1;: 5 - _ _
,“;: +2 L L t12 6 L
250 315 +196 G
-21 L L -28 6 L -426 4 Agw -29 - - -39 - - --59 - -
",",: +3 L-5 L*5 +11 6.5 4.5
315 LOO +21 6.5 L-5
-22 4.5 b-5 - 30 6-5 4.5 - Lc, 6.5 4.5 Agw -31 - - -L2 - - -63 - -
400 500 ;;:, r,', : 55 +l' - 3L ;: ; [ -':", '7; s"
Agw -34 - - -47 - - I-70 _ -
11
IS : 7859 - 1975
TABLE 1 GAUGE ALLOWANCES AND MANUFACTURING TOLERANCES FOR INSIDE MEASUREMENTS - Conrd
NOMINAL SIZE TO _ERANCE CLASS
mm GAUGE M6
A “+ +” -9
h Aon 17’ ;:f z Agw - 9 - -
Ang -1 0.75 - Aan - 7.5 0.75 - -10 1.25 - - 13 1.25 - AW -10 - - - 13.5 - -19 - -
6 z ,;.5 .
:.;i: ::;; 0 1.25 0.75 1
- + 18 1.25
II 1.25 0.75
-13 1'25 0.75 0.75 Agw -13 - *- -16.5 - - .- 24
__ 2 -4 1 1 0 18
1.5 1 + 2 -13 1 1 -15*5 1.5 1 - 21
Agw - 16.5 - - -20 - - - 29 -
j 0 1.25 + 4 2 -
A& I-18.5 1 _- _' -18
22 1.25 7 24 2
-24 - _ - 33 -
4na I - 4 I 1.25 1.25 - 2Y.5 22
l-25 + 5 2 j 1.25 - 28 2
A&v I-22 I_ - -28 - -
I- 5 1 1.5
-39_ -
Ang l-5 %5 1.5 + 5 I 80 1 Aon i - 21.5 1 l.5
2.5
Agw 1 -26 I- 1.5
-206 2.5 la5 -34 2.5
- -33 - - -46 -
30 I 50 I &vi I- 17.5 Il.25 I l-2! I
t 50; --,
- -
+ 1.5 1 1.5 1
-
1.25 1.2 5 -
1.25 1.25
__ I ___ I- 6 12 12 1 -0 137 -25 2 2 24," -31 - - -- -54
120 180 .Agn Am 12: 2.5 2.5 4 + 2.5 2.5 - 3: 4 2.5 2.5 -46 8 t
Aw -36 - - -44 - - -61 -
- 10 180 “dg
3.5 3.5 - 3 250
3.5 5 - 32 3.5 3.5 -39 55 3.5 +5 -51 5
Agw - 39 - _._ -49 - - -66 -
ii.’ 12 4 4 -4 6 4 +3 6
315 135 4 4 -44 6 4 -58 i6 4 ,4 250
A!W -43 - - -55 I- I- -75 - -
- 14 315 so0 .f; -39
A AI -48 - - -80 -y -
I ‘400 i 50~
] ‘_52
.
f
(Continued)
72
IS : 7859 - 1975
TABLE 1 GAUGE ALLOWANCES AND MANUFACTURING TOLERANCES FOR INSIDE MEASUREMENTS -Contd
NOMINAL SIZE .-
TOLERANCE CLASS mm
UP TO GAUGE. N6 N7 N8
OVER AND INCLUDING A +p A t; ++ A +!! 22
2
Ano 0.6 - - -,_ 3 Aon :;0.6- :,:51 . z -1;: z A!W -11 - - - 15.5 - - -2’ - ._ Ang - 5 0.75 - - I 1.25 - - 2 1.25 -
3 6 Aon Aow 1 a - E’” o’75 - - lb 1.25 - “25 - -17.5- - 1 :: - -
- L 6 10 Ano A0n I 1 z.5 00:;; i:;; - 17 r:z E ’
- 3 1.25 0.75 - 22 1.25 0.75
A0w -17 - - - 20.5 I_ -20 -.- An0 - 9
- 18 1’ 1 - 5 1.5 1 - -3 1.5 1
10 18 A0n - 23.5 1.5 1 - 26 1.5 1 A0w -21.5 - - -25. _ - -34 - - An0 - 11 1.25 1.25 - 7 2 1.25 - 3 2 1.25
18 30 A0n - 22 1.25 1.25 - 25 2 1.25 -31 2 i.25 Aow - 25.5 - ’ - -3’ - - -00 - -
i”,: - l-2 1.25 1.25 1.25 - 3 2 1.25
30 50 -- 6 2
- 25.5 1.25 1.25 - 29.5 2 1.25 - 36 2 1.25 Aow -30 - - -36 - - -L7 - -
- 14 1.5 1.5 - 9 2.5 1.5 - L 2.5 1.5 50 80
An0
Aon - 30.5 1.5 1.5 - 35 2*5 1.5 - L3 2.5 1.5 Aow -35 - - -12 - - -55 - -
-16 2 -10 3 80 120 2;: -35 2 : -LO 3 f 1st: 22
Aow -41 - - -L9 - - -6L - -
- 120 180 if’, - 20 41 2.5 2.5 2.5 2.5 -12 L L
1;: -
;:i: : 5: L” 2.5 2.5
Aow -LB - - - -73 - - Ano - 24 3.5 3.5 - 17 5 3.5 - 9 5 3.5
180 250 Aon - L6 3.5 3.5 - 53 5 3.5 5 3a5 Aow -53 - - _ 63 _’ - z :: - -
Ano -20 L L -16 6 L -11 c; L 250 315 Aon -5’ L I -506 I -726 L
Aow -59 - - -69 - - -69 - - ’
315 400 ign:
- 30 1.5 L.5 - 22 6.5 4.5 - li 6.5 b.5
- 5s Is.5 r.‘; - 63 6.5 4.5 6m5 L*5 Aow -6& - - -75 - - ‘I s76e - -
400 500 ino: - 32 - 59 55 z
- 24 7.5 5 -15 7.5 5 - 69 7.5 5 - 65 7*5 5
Aow -69 - - -62 - - - ‘05 - -
(Continued)
“13
IS : 7859 - 1975
TABLE 1 GAUGE ALLOWANCES AND MANUFACTURING TOLERANCES FOR
INSIDE MEASUREMENTS - Contd
.
IS:7859-1976
TABLE 1 GAUGE ALLOWANCES AND MANUFACTURING TOLERANCES FOR
INSIDE MEASUREMENTS - Contd
NOMINAL SIZE TOLERANCE CLASS 1
! A,, I-26 1 - I-
101 (1_ - 2L
18 3o Ang tgo
1.25 -35 ;*2’2 * 1-25
w - 36.5 -
- 29 1.25 30 50
ho 1.25 2:
I 4L72.6 I-25 1.25
- 35 50 6 5 2: Ang - 51.5 ;:5 _ 9 56 :I;
0'0 65
80 100
100 120
120 140
140 160 .
A”9
*
A”9 A9” A9w
.Anp A,”
-h
A”9 A9”
A,,
A”9 4”
- 56 2.5 2.5 I ;z 2.5 2.5
- 50 2.5 .' 2.5 - 79 2.5 2.5 -86 - -
- 61
'8
225 A”9 - 73
200 A,” A9w 1 109:
::5" ::5" -
:;: - 77 3.5
225 250 - 99 ::'5 3.5 A9w - 106
‘4~9
- 88 2
250 280 2;
- 111 L t -119 - -
260 315 Ang - 92 L A9n
- 115 L" L
A9,., - 123 -
- 101 L*5 315 355 $” A”9 - 126 :.i: 1.5
w -135. - -
355 400 2: 1 1;; ;:; ::; 4w -1Ll - -
- 116 5 5 400 L50 An9 A9n - lL5 5 5
A9w - 155 - -
An9 - 12L 5 5 450 500 A9n
z ;;; 5 5
A9w
R7 I R8
- 10 1 - -10 1 I ;y:; 1 - - 22 1
- - 27 - -
- :I 1.25 -- -
- iso I.25 -
1.25 - 125 - - 2L.5 - - - 36 - -
- 13 1.25 0.75 -
19 - 26 1.25 29.5 0.75 - - -
1 ;; v:: *_ K ;
- 16 1.5 I - 23 1.5 1
I :ts '4 - _g 1.5 - I L'
- 20
1 ;f 22
1.25
1.25 - I - :86
2 l-25
2 65 - 1.25 -
-25 I2 1.25 - i7L i: 1.25 - 16.5 -53
2 1.25 - 1.25 - T 78 _ _
1 1:: 3.5 - - 6L 140 55 3):;
- 112 z 3.5
- 155 - - -
- 70 3.5 - 88 5 3.5 - 106
2 3.5 - ILL 5 3.5
- 116 - -159 - -
1 1:: 6 L - - 100 6 4 6 L 161 6 4
-129 - - - 178 - -.
- 82 6 L - 122 6 L 1 ;g t 4L - 133 -. 182 - - _
1 1;: 6.5 4.5 6.5 L-5
1 ;g ;:; 1.5 L-5
- U6 -- - - 199 - -
- 99 ::z L-5 - 121 6.5 4.5 - lL0 4.5 - 187 6.5 L-5 -. 152 - 205 - -
- 110 7fI 2 - 135 ::s" 5 z gg 7.5 - - 205 5
- 225 - -
-116 7.5 - 161 7.5 -17L
: - 1Ll 7.5 - 211 7.5 :
- - -231 - -
(Continued)
15
b ----~ .-...
IS : 7859 - 1975
TABLE 1 GAUGE ALLOWANCES AND MANUFACTURING TOLERANCES FOR
INSIDE MEASUREMENTS - Contd
mm
- . ‘9 - 38 l-25 1.25 ,30 50 kw - 51.5 1.25 1.25 ';xp--+:r::
Agw -56 - - -62 _ '-
Ang - L: 1.5 1.5 - L2 I.5 50 65 Agn - 63.5 1.5 1.5 - 68 ;:: I.5
Agw - 66 - - -75 - -
160 183 Ang Agn ASW
180 A%
200 Agn Agw
200 225 An5 Agn Agw
225 250 Ang Agn Agw
250 280 ;f w
280 Ang
315 Agn
q-z~~Ji~~-Tq-y - 137 3-5 3.5 - ILL 55 3.5 -ILL I - - - 154 -
-___ - :23 3.5 3.5 - 116 3.5 - 145 3.5 3-5 - 152 3.5 - 152 - - i62 - -
- 133 3.5 ;::
- 126 5 3.5 - 155 3.5 - 162 5 ( 3.5 - 162 - - - 172 - -
- 152 - :75
:. & - 142 L L - 182
6" 1
- 163 - - - 193 - -
- 16I. .4 L - 15& 6 L. - 167 4 L - 19L 6 h - 195 - - - 205 - -
- 183 4.S 4.5 - 175 6.5 L-5 - 200 L.5 L-5 - 216 6.5 4,5 - 217 - - -228 - -
- 201 L-5 L-5 - 193 ::"5
L.5 - 226 L-5 L-5 - 234 5.5 - 235 - - -2L6 - -
I 1 Agw I-281 1 - 1 - I-'29L 1 - [ -
(Continued)
16
IS : 7859 - 1975
TABLE 1 GAUGE ALLOWANCES AND MANUFACTURING TOLERANCES FOR INSIDE MEASUREMENTS - Contd
NOMINAL SIZE
- 60 - 55 - 76.5 ;:; 1.5 1.5 - -61 $55 ;:'s -81 - - -83 - -
an9 - 69 1:: 1.5 - 61 A9n
1 E5 1.5 - 90
::5" I.5 1.5
AQW -97 - -
- 64 - 76 3 -103 f : - 108 3 : A9" -109 - - - 117 - -
An9 - 97 - 91 AV -116 E 3 - 121 3 22 A9w -122 - - - 131 0 I-I-
An9 -115 2-5 - 107 Apn -136 2.5 f:'5 - 1Ll : ::5" h9w -143 - - --'(51 ._. I
Aw -127 2 ;5 - 119 I L 1 2.5
Agn -.lL6 2.5 ::; - 153 L 2.5 Aaw -155 - - -163 - -
-139 I 2.5 I 2.5 I -131 I L I 2*5
18 24 f; 1 1 z z z 1 Agw - - - -
Av - 31 1.25 1.25 - 33 2 1.25 24 30 “A; - 48 1.25 I.25 - 51 2 1.25
I - 51'5 - - _. -1
I I
- 43 1.25 1.25 -33 12 - 56.5 1.25 - 61 _. - A9 1.25 1.25 - 65 1.25 - 62.5 1.25 1.25 - GS.5 : 1.25 -67 - - -13 - -
I I
-152 1 5 I 3.5
17
IS : 7859 * 1975
EXPLANATORY NOTE .
IS : 3455-l 971 ‘Gauging practice for plain workpieces (first revision)’ specifies the dimensions for different types of plug, ring and gap gauges. This standard gives in a tabulated form, the calculated values of the gauging allowances and manufacturing tolerances for cylindrical and flat plug gauges and spherical ended plug gauges of nominal sizes up to 500 mm for selected IS0 tolerance zones as recommended in ISO/R 1829-1970 ‘Selection of tolerance zones for general purposes’. This standard supplements the details given in IS : 3455-l 971. For individual gauges reference should be made to the foilowing - standards :
a) IS : 6137-1971
b) IS : 6138-1971 30 mm)
c) IS : 6244-1971
d) IS : 62451971 100 mm)
e) IS : 6246-1971 250 mm)
f) IS : 6247-1971 250 mm)
g) IS : 7018-1973
Gauging members for plain plug gauges ‘GO member’ (size range 1 to 30 mm)
Gauging members for plain plug gauges ‘NO GO member’ (size range 1 to
Gauging members for plain plug gauges ‘GO’ member (size range 30 to 100 mm)
Gauging members for plain plug gauges ‘NO GO’ member (size range 30 to
Gauging members for plain plug gauges ‘GO’ member (size range 100 to
Gauging members for plain plug gauges ‘NO GO’ member (size range 100 to
Technical supply conditions for gauges
In the preparation of this standard assistance has been derived from DIN 7164-1966 ‘Arbeitslehrdorne und Kugelendmasse fur IS0 Passmasse von 1 bis 500 mm Nennmass Lehrenmasse und Herstelltoleranzen (Workshop plug gauges and spherical plug gauges for ISO-fit sizes from 1 up to 500 mm nominal size; deviations and tolerances for gauges)’ issued by DIN Deutsches lnstitut fur Normung.
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