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 ह ै” Bhartṛhari—Nītiśatakam “Knowledge is such a treasure which cannot be stolen” IS 4966-2 (1969): Gauges for Serrations, Part II: For Gauging Internal Serrations [PGD 25: Engineering Metrology]
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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 4966-2 (1969): Gauges for Serrations, Part II: ForGauging Internal Serrations [PGD 25: Engineering Metrology]
I IS : 4966 ( Part II ) - 1999 i ( Reaffirmed 1988)
Indian Standard
) SPECIFICATION FOR GAUGES FOR SERRATIONS
PART II FOR GAUGING iNTERNAL SERRATIONS
( Third Reprint AUGUST 1990) . -.
. l
l .*
UDC 621’753’3 : 621’824’44
/
__
BUREAU OF INDIAN STANDARDS MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG
Sm M. B. DHAVALE Indian Diesel Engine Manufacturers’ Auodation, Poona
SHRI S. K. JOSHI ( Altmtak ) SXRK VmAYa MAHADEO GADRE Cadre Brothers, Madhavnagar
Swax GOPAL ~IARADEO GADRE ( Altmak )
S~lu P. L. Jm Jyoti Limited, Baroda Snax GXRZSHBXAZ C. PATEL ( A&m&)
SIIRI V. R. KRBHNAYM~~THY Tube Investments of India Ltd, Madras SHU M. L. KUBAAR Minky of Defena ( DGI )
SHRI RAM SINW ( Altcmats ) SxaxD. I&~~ARENHAS David Brown Greavea Ltd, Poona
Snar M. NAOARAJ ( Al&ma&) SXRI J. V. RAOHAVAN New Allenberry Works, Calcutta SW S. SHANMUGAM Southern Industrial Corporation Ltd, Madrag SXRI N. c. SuKHARAhtWALh The Mysore Kirloskar Ltd, Haribar SRR~ V. VENKATAWAN
&RI S. V. MANX (Aftem&) Greaves Cotton & Co Ltd, Bmnbay
SHRI D. S. M. Vmmu S~R.I M. V. PATANKAR,
Heavy Electricah (-India ) Ltd. Bhaplrl
Director ( Mech Engg ) Director General, IS1 (&-&io Me&r)
slsnhrj, Smtr c. v. Ravnmurr
Assirtant Director ( Mech EG 1, IS1
( Conlinwd on @age 2 )
BUREAU OF INDI’AN STANDARDS MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG
NEW DELHI 110002
Splints and Scrratims Subcommittee, EDC 44 : 4
CoMmrr SHIU R. S. BXR
iwmbcrs
R4nuntins .
Hmduuan Machine Toolr Ltd, Bangalore
SUaI M. RANoAswI ( AlUma& to Shri R S. Bit )
CEmYENamnm Iicavy Electricals (India) Ltd, Bhopal &RI R bMANATkiAN (~~ktIotC)
Satu D. C. Kowu . Hindustan Motors Ltd, Calcutta smu K. s. MrmiAa smu .v.RAGliAVA?J
Automobile Products of India Limited, Bombay New Allenberry Works, Calcutta
SnRt ic SURYANARAYANA RAO &BI G: K. RUZKAR
Ashok Leyland Limited, Madras The MysorcKirloskar Ltd. Harihar
2
IS:4966fPartII;-1969
Indian Standard SPECIFICATION FOR
GAUGES FOR SERRATIONS
PAR?’ II FOR GAUGING INTERNAL SERRATIONS
0. FOREWORD
0.1 This Indian Standard ( Part II ) was adopted by the Indian Standards Institution on 9 January 1969, after. the draft finalized by the Transmission Devices Sectional Committee had been approved by the Mechanical Engineering Division Council.
0.2 This standard has been prepared with a view to assisting the industry ia making gauges corresponding to the system of limits and fits recommended in IS : 919-1963* and also in order to help the industry in obtaining uniformity in design and variety reduction of gauges. Only the important dimensions of gauges have been covered in the standard, leaving the other details to the discretion of the manufacturer.
0.3 For various symbols and definitions, which are similar to the symbols and definitions for splines, IS : 3665-1966t may be referred.
0.4 In the ,preparation of this ,standard, considerable assistance has been derived from the following standards, issued by the Deutscher Normenausschuss:
DIN 2262 ( Blatt 1 )-1955 Kerbzahn - Gutlehrdorne fur Kerbver- zahnungen 7 x 8 bis 26 x 30 nach DIN 5481 Blatt 1 ( Sheet 1, ‘ GO ’ plug gauges for serrations 7 x 8 to 26 x 30 according to DIN 5481 Sheet 1 ).
DIN 2262 ( Blatt 2 )-I955 Kerbzahn - Gutlehrdorne fur Kerbverza- hnungen 30 x 34 bis 120 x 125 nach DIN 5481 Blatt 1 ( Sheet 2, c GO ’ plug gauges for serrations 30 x 34 to 120 x 125 according to DIN 5481 Sleet 1 ).
DIN 2263 ( Blatt 1 )-1955 Kerbzahn - Ausschusslehrdorne fur Kerbverzahnungen 7 x 8 bis 26 x 30 nach DIN 5481 Blatt 1 ( Sheet 1, ‘ NOT GO ’ plug gauges for serrations 7 x 8 up to 26 x 30 according to DIN 5481 Sheet 1 ).
DIN 2263 ( Blatt 2 )-1955 Kerbzahn - Ausschusslehrdorne fur Kerbvenahnungen 30 x 34 bis 120x 125 nach’DIN 5481 ,Blatt 1
l Rcco~endationa for limits and fits for engineering ( mid). _’ -%
pimeB&m for involute #ided @la.
3
( Sheet :2, ‘NOT GO’ plug ga Yes
for suTations 30 x 34 to 120 x 125 according to-DIN 5481 hect 1).
DIN 5481 ( Blatt 2 )A955 Kerbzahnnaben - und Ke&zahnwell& - Profile ( Kerbverzahnungen ) Lchrung da. Kerbzahnnaben, Lehrenmasse ( Sheet 2, gauging of serrated hubs, gauge dimension ).
05 For the purpose of deciding whether a particular requirement of this cr
standard is complied with, the final value, observed or calculated, expressing the tit of a test, shall be rounded off in accordance with IS : 2-1968*. The number of significant places retained in the rounded off value should he the same as that of the specified value in this standard.
1. SCOPE
1.1 This standard covers the main dimensions for GO and NOT GO gauges for internal set-rations according to IS : 3654-1966t.
2. TERMlNOLOGY
2.0 For the purpose of this standard, the following definitions shall apply.
2.1 GO Gauge- The gauge used to check the limit of size which correspond to the maximum matizrial condition‘that is the upper limit of a shaft or the lower limit of a hole.
2.2 NOT GO Gauge -The gauge used to check the .limit of size which corresponds to the minimum material condition that is the lower limit of
* a shaft or the upper limit of a hole.
3.MMERIAL
3.1 Gauge Members - The gauging members of gauges shall be made of suitable wear resisting steel such as C85 of 1% 1570-1961$.
33 Handles - The handles for gauges shall ue made of any suitable steel. For heavier plain plug gauges, the handles may be made of light metal alloys. Suitable non-metallic handles may also be provided in the case of smaller plain plug gauges.
‘4. DIMENSIONS AND TOLERANCES
4.1 GO Gauge- The dimensions of GO gauges for internal serrations shall be as given in Tables 1 and 2.
4.2 NOT GO Gauge- The dimensions for NOT GO gauges for intamal scrrations shall be as given in Tables 3 and 4.
*Rules for rounding off numerical valuw ( raird). . ~Dimcluiolls for straight aided scnations. $Scbahlcs far wxwgbs rtak for general cngindg purposa.
TABLE 1 DR&RNSIONS FOR GO GAUGES FOR INTERNAL SRRRATIONS
- --m *da, is the maximum v:tlue of major diameter ~rx of the shaft ( see IS : 3654-1966 Dimensions :br straight sided scrrations ). tToJcnoaJ1 for the pitch angle 8 hns bern given rot as an angle but in linear units pm.
!f
tolemtmx kr the pitch and applies over any number of pitches. This shall bc 1 nsidrmi a~ the H
‘_’ Nors - Scrrationa up to nominal size 55 X 60 have 60’ serration @e ud m &wx clr d x& 5$Xle) kxve 5Z”
aenation CmgJC, b_
$5 . %
TABLE 2 OVEIULL DIIb¶E+%ONS FOR GO GAUGES FOR INTERNAL gEaRATIONS
NOTE - &rations up to m&ml size 55 X 60 have 6o” acrralion Gn@G and scrrationr above the nominal rizc 55 X 60 have wsGmticGl UlglCi
I0:49M(Part //.)-1969
5. DESIGNATION
5.1 The gauges shall be designated by GO or NOT GO as applicable, the nominal size of the internal serrations for which the gauges are used and the number of this standard.
A GO gauge for internal serrations d nominal size 10 x 12 shall be designated as:
GO Gauge, Internal Serrations 10 -X 12 - IS : 4966 ( Part II )
6. OTHER REQUrrtEMENTS
6.1’ The gauging surfaces of gauges shall be hardened to not less than 750 HV (se8 IS : 1501-1959* ) or its equivalent on other scale.
6.2 The surface finish of the gauging sur&ces shall br in accordance with the values for the corresponding symbols as given in IS : 3073-1967t (racTables 1 and3).
7. MARKING
7.1 The gauges shall be marked with the following details:
a) Designation, and
b) Manufacturer’s name or trade-mark.
7.1.1 The gauges may also-be marked with the IS1 Certification Mark.
Nol~ - The use of the IS1 CertiGcation Mark is goyemed by thb pthihions of the Indian Standards Institution ( Ccrti6cation Marks ) Act and the Rules and Regulations made theretmder. The ISI Mark on products covered by an Indian Standard conveys the assurance that they have been produced to comply with the requirements of that standard under a welLdc6ncd systan of inspection, testing and quality control which is devised and s~pcrviscd by IS1 and operated by the producer. IS1 marked products are also continuously checked by IS1 for conformity to that standard as a fur&r safeguard. Details of conditions under which a licence for the use of the ISI Cut&cation Mark may be granted to manufacturcm fnmr tbe IndiarLStandards Institution.
or proceWrs, may be obtained
8. PAGKING
8.1 The gauges shall be suitably protected against climatic eon&ions by an-application of suitable anti-corrosive coating. The gauges may then be packed in suitable cases to prevent damage in tranrit:
*Metbod for Vickers hardness tat for steel. 1 Since revised ). tAssessment of surGice roughness.