-
Disclosure to Promote the Right To Information
Whereas the Parliament of India has set out to provide a practical regime of right to information for citizens to secure access to information under the control of public authorities, in order to promote transparency and accountability in the working of every public authority, and whereas the attached publication of the Bureau of Indian Standards is of particular interest to the public, particularly disadvantaged communities and those engaged in the pursuit of education and knowledge, the attached public safety standard is made available to promote the timely dissemination of this information in an accurate manner to the public.
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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 2293 (1974): Gib-head Keys and Keyways [PGD 31: Bolts,Nuts and Fasteners Accessories]
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UDC 621'886.8 C Third ReDrint FEBRUARY IQRR I IS : 2293 - 1974 t PumImrd 1-b -- -v-v, \ _.---_--- --__,
Indian Standard
SPECIFICATION FOR GIB-HEAD -KEYS AND KEYWAYS
( First Revision )
. Scope - Dimensions and tolerances for Gib-head keys and keyways.
I. Dimensions
1.1 Keys
TAPER I:100
+I*rb- h -
I-------c,
All dimensions in millimetres.
b Tol on b h Toh!on
S
h9 Range of Key Length, I hl
-_..___
Min Max Min Max
- 4 4 016 0'25 14 45 7
5 0 5 -0'030 --00030 0'25 0'40 14 56 8
6 6 0'25 0'40 16 ! 70 10
0'25 0.40 20 90 11
~- 12
16 ii-----
20 12
260 1 22
26 16
__.__~ 2'50 3'00 - - 70
2 50 3'00 - - 60
*Toi L,I :,: Square Section h9;Rectangular Section hll.
Adopted 16 December1974 @ May 1975, ISI
INDIAN STANDARDS INSTITUTION MANAK BHAVAN, 9 _BAHADlJR SHAH ZAFAR MARG
NEW DELHI 110002
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IS t 2293 - 1974
2.2 Keyways
x-4 rAPERl:lOO
DETAIL OF KEYWAYANDKEY
I
X4
mllllmetres.
SECTION XX
All dimensions in
r Keyway -
-
-_
-_
I -
-
.-
-
- _-
-.
-
-
-
-_
-
I I I bxh b Tolon t1 Tolon
D!O il
4 I --
2'5 I-
I
Min Max --- 0'08 0'18
0'18 0'25
0'18 0'25 --- 0'18 0'25
0'25 0'40 ---
0'25 0'40 --
0'25 0'40 -- 0'25 0'40
0'25 0'40
0'40 0'60
0'40 0'60
0'40 0.60
0'40 0'60
0'40 0'60
0'70 1'00 I
~0’10 1'00 --_-
0'70 1'00
Tt4°n
+rl
tr
1'2
1’1
2'2
2'4
2'4
2'4
2'9
3'4
3'4 --
8'9 -.-
4'4
4'4
5'4
8'4
?'l
8'1
0'1
10'1
11'1
11'1
13'1 -. __-
14.1
18'1
18'1
Above up to ---
10 12 _-
12 17
17 22
a- 30
4x 4
sx 5 5 +0.078
+0'030 3'0 +;1
-- -- .6 3.5
8 +0'098 4'0
10 5.0 ---- --
12 5'0 !__.-
6x 6
8x 7
30 1 38 10x 8
38
I
44
44' 50
12x 8
14x 9 14 +0*120 / 3.5 . -- 16 I +0,050 , 6.0 50 1 58 16x10
~.
18 7'0 'i"
20 7'5
22 +0*149 t 9.0 25 ------I
+0.065 Q,.
+y
+g3
58 I 65 18x11
65 1. 75 20x12
76 85 22x14
85 I 95 25x14
28 10'0 I 95 1 110 1 28x16
110 1 130 1 32x18
lso 1 150 36x20 --
150 110 40x22
I -170 200 45x25
200 1 230 1 50x28
230 1 ~260 1 56x32
0'70 ' 1'00
1'20 1'60
1'20
t-
1'60
1'20 ----I 1'60
58 +09
63 0
70
260
200 830 70x86
830
380
L- 290 63x32 380 80x40
-. 440 90x45
80 i I 25'0 2'00 1 2.50 ) 2’00 2.50
9'00 I I 2.50 440 1 500 1 lQOX50
2
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IS : 2293- I974
2.3 Preferred Lengths and Weight of Keys All dlmenrlons in millim~tres.
Preferred Length ,S.
___ .._ ~~~~~ _ ..__ ._ Key (bxh)
--- 4x4 1 5x5 ) ax6 1 8x7 1 10x6 ( 12x8 1 14x9 /16X10 I16Xlt 120x12 (22x14 1-25mXt3 136x20 ] 400x22 ( 45x25 1 50x28
~~~~~ .~.____~ III *WeiQht for Keys. kQ/lOOO Pieces (Apprpx)
14 ES7 443 - - - - ---
16 -G----- ('62 7.t6-_-_~-_-_-_- - _
- - -
- - - -- --
IQ0 - - _ - ___-
110 - - _ - --
125 - - - - ___-
- -
-~ --
----
- l_l_l_/_ -+---Gq739 - -,_
I 400 I-j-/-/-~-l-/-i-l-/-l-~-
-
.-
._
.-
.-
. . - _
_
. .
.
_
- - - _ ____~ - I - ~___ - - - - _I- _-_-
- - - _ - _ -~--__-_
- - -I--- - -~-__ ___ - - ~- I- - - - - - _ - -
----_-- - - - _ - -
-- ---- - - - - -
---_-- - - - - - -
------ - - - - -
---_~- - - - _ - -
---_-_ - - - _ -
------ - - - _ - -
__~~_ I- - -I=+ - - -
- -
I I - --- - - - ---
__.I=\ - _I - I -
- I - I - ---- 1190 - - I I --- 1290 - ~-
--.--,_I-,----J-1-1
-- -- 753 ,cw -1550 1x0 2 170 2760
---_--__ 618 1060 1410 1760 2340 3wO
---~ 661 1170 1510 1910
--~- 971 12W 1660 2100
____-- 1060 / 1400 ’ 1610 -I-_ 1170 1 1550
I2260 2980 j 3800
2ooo TG-- 3270 j 4170 ~
- - j ,700 --!__
2200 27% 3610 4490 -/-
- / - 2390 I I -~ / ! 3000 3920 4990 / I
N&*--The lengths Of keys of width b - 66 to loo mm shall be a6 apreed to between the purchaser and Ihe supplier. ,
*For calculations of weight, density of steel taken as 7'66 Q/cm'.
--__
3
-
As in the Original Standard, this Page is Intentionally Left Blank
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IS : 2293 - 1974
3. Designation designated as;
-A Gib-head key of width 12 mm, height 8 mm and length 60 mm shall be
Gib-Head Key 12 x 8x 50 IS : 2293
4. Tolerance on Length of Keys
r I I
I Length of Key I Tolerance
mm mm
/_ up to 28 I -0’2 __I_ -I
32 to 30 -0’3
EO and above -0’5
5. Material of Key - Steel of tensile strength not less than 600 MN/mm* ( - 60 kgf/mm* ).
EXPLANATORY NOTE
This standard was first published in 1963 and was based on DIN 6887-1956 which has since been revised. While issuing this revision, the Committee responsible for the preparation of this standard has brought this standard essentially in line with ISO/R 774-l 969 ’ Taper keys with or without Gib-head and their corresponding keyways l . Dl C 5887- 1968, have been
In addition, the weights of keys for specified lengths, derived from included in the.standard.
__._- -.-_._ ___ _ -_ __ Prlnted at Slmco PrlntinO Pre8s. Delhi. lndla
tt: ( Reaffirmed 2002 )