Address: Manak Bhavan 9, Bahadur Shah Zafar Marg, New Delhi-110002 Ph: 011 23230131, 23233375, 23239402 PRODUCTION AND GENERAL ENGINEERING DEPARTMENT http://www.bis.org.in Email pgd@bis.org,in व य पक पर च लन म मस द DRAFT IN WIDE CIRCULATION प रल ख प र षण स ज ञ पन/DOCUMENT DESPATCH ADVICE स दर भ /Ref. ददन क/Date तकन क समममत/TECHNICAL COMMITTEE ब यर ग म षय समममत, प ज ड 13. (Bearing Sectional Committee, PGD 13). प ज ड /PGD 13 (13354) 15.01.2019 सर सदस य/All members of: 1. क) उत प दन ए स म न य इ ज मनय रर ग म र ग य पर षद क र मच खन ल सदस य Interested Member of Production & General Engineering Division Council ख) ब यर ग म षय समममत, प ज ड 13 Bearing Sectional Committee, PGD 13. 2. र मच खन ल अन य सदस य/Other Interested Members Dear Sir(s), ब यर ग म षय समममत, प ज ड 13 द व त य दकय गय मनम नमलमखत स लग न प रल ख प र प त क /Please find enclosed the following document prepared by the Bearing Sectional Committee, PGD 13: प रल ख स ख य /DOC NO. प ज ड /PGD 13 (13354) TITLE प ल न ब यर ग आ त ब श र ग 1: आय म Plain bearings Wrapped bushes Part 1 : Dimensions (Adoption of ISO 3547-1 : 2018 Second Revision of IS 4757) ICS 21.100.10 क पय इस प रल ख क अ ल कन क औ अपन सम ममतय यह बत त ह ए र ज दक अ तत: यदद य म नक क र प म प रक मशत ह ज ए त इन प अमल क न म आपक व य स य अथ क ब म क य कर न ईय आ सकत ह /Kindly examine the draft amendment to standards and forward your views stating any difficulties which you are likely to experience in your business or profession, if these are finally adopted as National Standards. सम ममतय र जन क अ मतम मतमथ/Last date for comments: 15.04.2019 यदद आपक क ई सम ममत ह त क पय ददय गय प र र प म अद य हस त क ष क उप क त पत प र ज /Comments, if any, may please be made in the format as given in overleaf and mailed to the undersigned at the above address.
यदद आपक क ई सम ममतय प र प त नह ह त ह य क ल सम प दक य सम ममतय प र प त ह त ह त हम उप क त प रस त क र त य म नक क अ तममत र प स अम ग रहण क न क आपक सहममत म न ल न क अन ममत द प त यदद हम तकन क सम ममतय प र प त ह त ह तब य त म षय समममत क अध यक ष स प मशभ पश च त र त य म नक क अ तममत र प म प र त क अम ग रमहत दकए ज ए ग अथ उनक इच छ न स आ श यक क यभ ह ह त म शय समममत क म च थभ र ज ज ए ग /In case, no comments are received or comments received are of editorial nature, you will kindly permit us to presume your approval for the above documents as finalized for adoption as Indian Standards. However, in case of comments of technical in nature are received then it may be finalized either in consultation with the Chairman, Sectional Committee or referred to the Sectional Committee. न य द/Thanking you, र द य/Yours faithfully, सल ग न/Encld.: उप क त/As above. (ए ग जन /A Rengarajan) प रम ख/ Head (प ज ड /PGD) Email: pgd@bis.org.in NOTE: The technical content of document is not attached herewith / available on website. To get the document please contact: Head Production and General Engineering Department Bureau of Indian Standards 9, B. S. Zafar Marg, New Delhi-110002 Email: pgd@bis.org.in
Doc No.: 13(13354) IS 4757-1 : 2019 ISO 3547-1 : 2018 र त य म नक प ल नब यर ग आ तब श र ग 1: आय म ( द स प न क षण ) Indian Standard Plain bearings Wrapped bushes Part 1: Dimensions ( Second Revision ) BIS 2019 B U R E A U O F I N D I A N S T A N D A R D S MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG NEW DELHI 110002 January 2019 Price Group
Doc No.: 13(13354) IS 4757-1 : 2019 ISO 3547-1 : 2018 BearingSectional Committee, PGD 13 NATIONAL FOREWORD This Indian Standard (Part 1) (Second Revision) which is identical with ISO 3547-1 : 2018 Plain bearings Wrapped bushes Part 1: Dimensions issued by the International Organization for Standardization (ISO) was adopted by the Bureau of Indian Standards on recommendation of the Bearing Sectional Committee, PGD 13 and approval of the Production and General Engineering Division Council. This standard was originally published in 1968 and subsequently revised in 1980. First revision was based on ISO 3547 : 1976 Plain, bearing Wrapped bush Dimensions, tolerances and methods of checking, issued by the International Organization for Standardization (ISO). Second revision of this standard has been undertaken to align it with the latest version of ISO 3547 (all parts). The major changes in this revision are as follows: Normative references have been updated. Formulae for the minimum and maximum inside diameters of the bush have been added. A formula for the expansion of the housing bore due to the pressing in of the bush has been added. Other parts in this series are: Part 2 Test data for outside and inside diameters Part 3 Lubrication holes, grooves and indentations Part 4 Materials Part 5 Checking the outside diameter Part 6 Checking the inside diameter Part 7 Measurement of wall thickness of thin-walled bushes The text of ISO Standard has been approved as suitable for publication as an Indian Standard without deviations. Certain conventions are, however, not identical to those used in Indian Standards. Attention is particularly drawn to the following: a) Wherever the words International Standard appear referring to this standard, they should be read as Indian Standard. b) Comma (,) has been used as a decimal marker while in Indian Standards, the current practice is to use a point (.) as the decimal marker. In this adopted standard, reference appears to the following International Standard for which Indian Standard also exists. The corresponding Indian Standard which is to be substituted in its place is listed below along with its degree of equivalence for the edition indicated.
International Standard Corresponding Indian Standard Degree of Equivalence ISO 4378-1 Plain bearings Terms, definitions, classification and symbols Part 1: Design, bearing materials and their properties. IS 10260 (Part 1) : 2017 Plain Bearings Terms, Definitions, Classification and Symbols Part 1 Design, Bearing Materials and Their Properties ( First Revision ) Identical with ISO 4378-1 : 2009 The technical committee has reviewed the provisions of the following International Standards referred in this adopted standard and has decided that they are acceptable for use in conjunction with this standard: International Standard ISO 4378-4 ISO 12301 Title Plain bearings Terms, definitions, classification and symbols Part 4: Basic symbols. Plain bearings Quality control techniques and inspection of geometrical and material quality characteristics. For the purpose of deciding whether a particular requirement of this standard is complied with, the final value, observed or calculated expressing the result of a test or analysis, shall be rounded off in accordance with IS 2:1960 Rules for rounding off numerical values (revised). The number of significant places retained in the rounded off value should be the same as that of the specified value in this standard.
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