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.

इंटरनेट मानक

“!ान $ एक न' भारत का +नम-ण”Satyanarayan Gangaram Pitroda

“Invent a New India Using Knowledge”

“प0रा1 को छोड न' 5 तरफ”Jawaharlal Nehru

“Step Out From the Old to the New”

“जान1 का अ+धकार, जी1 का अ+धकार”Mazdoor Kisan Shakti Sangathan

“The Right to Information, The Right to Live”

“!ान एक ऐसा खजाना > जो कभी च0राया नहB जा सकता है”Bhartṛhari—Nītiśatakam

“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]

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

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

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

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 )