[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-662766-105":59,"doc-detail-662766-en":129},{"code":4,"msg":5,"data":6},0,"success",[7,13,18,23,28,33,38,43,48,51,55],{"id":8,"doc_module":4,"doc_module_name":9,"category_name":10,"show_sort_weight":11,"slug":12},1,"Document","Story & Novel",90,"story-novel",{"id":14,"doc_module":4,"doc_module_name":9,"category_name":15,"show_sort_weight":16,"slug":17},2,"Literature",80,"literature",{"id":19,"doc_module":4,"doc_module_name":9,"category_name":20,"show_sort_weight":21,"slug":22},4,"Exam",70,"exam",{"id":24,"doc_module":4,"doc_module_name":9,"category_name":25,"show_sort_weight":26,"slug":27},5,"Comic",60,"comic",{"id":29,"doc_module":4,"doc_module_name":9,"category_name":30,"show_sort_weight":31,"slug":32},6,"Technology",50,"technology",{"id":34,"doc_module":4,"doc_module_name":9,"category_name":35,"show_sort_weight":36,"slug":37},7,"Healthcare",40,"healthcare",{"id":39,"doc_module":4,"doc_module_name":9,"category_name":40,"show_sort_weight":41,"slug":42},8,"Research & Report",30,"research-report",{"id":44,"doc_module":4,"doc_module_name":9,"category_name":45,"show_sort_weight":46,"slug":47},9,"Religion & Spirituality",20,"religion-spirituality",{"id":46,"doc_module":4,"doc_module_name":9,"category_name":49,"show_sort_weight":46,"slug":50},"World Cup","world-cup",{"id":52,"doc_module":4,"doc_module_name":9,"category_name":53,"show_sort_weight":52,"slug":54},10,"Lifestyle","lifestyle",{"id":56,"doc_module":4,"doc_module_name":9,"category_name":57,"show_sort_weight":24,"slug":58},19,"General","general",{"code":4,"msg":60,"data":61},"ok",{"site_id":62,"language":63,"slug":64,"title":65,"keywords":66,"description":67,"schema_data":68,"social_meta":122,"head_meta":124,"extra_data":126,"updated_unix":128},105,"en","technical-drawings-conventional-representation-of-gears-first-edition-1973","Technical drawings - Conventional representation of gears - First edition - 1973","","ISO 2203:1973 establishes conventional technical drawing representation for the toothed portion of gears, including worm gearing and chain wheels. It applies to detail drawings and assembly drawings and sets a fundamental rule: represent gears (except in axial section) as solid parts without teeth, adding the pitch surface as a thin long chain line. Guidance covers pitch surface depiction, contours and edges, teeth and root surface representation, and assembly conventions for gear pairs and specific engagement cases.",{"@graph":69,"@context":121},[70,84,104],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":40,"@type":76,"position":81},"https://docshare.wps.com/document/research-report/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/technical-drawings-conventional-representation-of-gears-first-edition-1973/662766/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":98,"encodingFormat":97,"isAccessibleForFree":99,"interactionStatistic":100},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/technical-drawings-conventional-representation-of-gears-first-edition-1973/662766.png","ImageObject",300,407,{"name":92,"@type":93},"Supernature","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-28",true,{"@type":101,"interactionType":102,"userInteractionCount":4},"InteractionCounter",{"@type":103},"ViewAction",{"@type":105,"mainEntity":106},"FAQPage",[107,113,117],{"name":108,"@type":109,"acceptedAnswer":110},"What does ISO 2203:1973 specify for gear representations?","Question",{"text":111,"@type":112},"It specifies conventional representation rules for the toothed portion of gears, including worm gearing and chain wheels, in technical drawings.","Answer",{"name":114,"@type":109,"acceptedAnswer":115},"How should a gear be represented according to the fundamental principle?",{"text":116,"@type":112},"Except in axial section, a gear is represented as a solid part without teeth, with the pitch surface added using a thin long chain line.",{"name":118,"@type":109,"acceptedAnswer":119},"What drawing conventions apply to assembly drawings of gear pairs?",{"text":120,"@type":112},"The detail drawing rules also apply, with additional guidance such as extending the pitch-surface line for a pair of bevel gears in projection parallel to the axis and handling concealed edges according to clarity needs.","https://schema.org",{"og:url":83,"og:type":123,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":125,"canonical":83},"index,follow",{"doc_id":127,"site_id":62},662766,1793222361,{"code":4,"msg":5,"data":130},{"doc_id":127,"user_id":131,"nickname":92,"user_avatar":132,"doc_module":4,"category_id":39,"category_name":40,"doc_title":65,"doc_description":67,"doc_content":133,"file_id":134,"file_url":135,"file_type":136,"file_size":137,"view_count":4,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":39,"language":138,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":139,"faqs":140,"seo_title":141,"seo_description":67,"update_tm":128,"read_time":46},962093270004,"https://ap-avatar.wpscdn.com/davatar_9964176cb1d06d4a9deccf72a44ae3dc","ISO2203-1973(E)  \nNTERNATIONAL STANDARD  \n# Technical drawings -Conventional representation of gears\n\nFirst edition-1973-03-15  \niTeh STANDARD PREVIEW(standards.iteh.ai)  \nISO2203:1973  \nhttps://standards.iteh.ailcatalogstandards/sist/876bc3a8-6880-4f70-80c1-3b2bc6793ecb/iso-2203-1973  \nFOREWORD  \nISO (the International Organization for Standardization)is a worldwide federationof national standards institutes ISO Member Bodies).The work of developingInternational Standards is carried out through ISO Technical Committees.EveryMember Body interested in a subject for which a Technical Committee has been setup has the right to be represented on that Committee.International organizations,governmental and non-governmental,in liaison with ISO,also take part in the work.  \nDraft International Standards adopted by the Technical Committees are circulatedto the Member Bodies for approval before their acceptance as InternationalStandards by the ISO Council.  \nInternational Standard ISO 2203 wasl drawnAup byfechnical commiftee EWISO/TC 10,Technical drawings,and circulated to the Member Bodies。inJanuary 1971.  \nIt has been approved by the Member Bodies of the following countriesz  \nhttps://standards.iteh.aicatalog/standards/sist/876bc3a8-6880-4f70-80c1-  \nAustraliaHungary3b2bc679Portugal2203-1973AustriaIndiaRomaniaBelgiumIrelandSouth Africa,Rep.ofCanadaIsraelSwedenChileItalySwitzerlandCzechoslovakiaJapanTurkeyDenmarkKorea,Dem.P.Rep.ofUnited KingdomEgypt,Arab Rep.ofKorea,Rep.ofU.S.A.FranceNetherlandsU.S.S.R.GermanyNew ZealandGreeceNorway  \nNo Member Body expressed disapproval of the document.  \n⑤International Organization for Standardization,1973·  \nPrinted in Switzerland.  \nISO2203:1973  \n//standards.itehai/catalogstandards/sist/876bc3a8-6880-4f70-82 DETAIL DRAWINGS(INDIVIDUAL GEARS)bc6793ecb/iso-2203-1973Represent the contours and the edges of each gear (seeFigures 1,2 and 3),as if they were,  \neven in the case of a gear that does not have spur teethor that has an odd number of teeth.  \n## 2.2 Pitch surface\n\nDraw the pitch surface with a thin,long chain line,even inconcealed portions and sectional views,and represent it,  \n-in a projection normal to the axis,by its pitch circle(external pitch circle in the case of a bevel gear and themedian pitch circle in the case of a worm wheel)(seeFigures 1,2 and 3);  \n-in a projection parallel to the axis,by its apparentcontour,extending the line beyond the gear contour oneach side(see Figures 1,2 and 3).  \n1 SCOPE AND FIELD OF APPLICATION  \nThis International Standard establishes the conventionalrepresentation of the toothed portion of gears includingworm gearing and chain wheels.It is applicable to detaildrawings and assembly drawings.  \nAs a fundamental principle a gear is represented (except inaxial section)as a solid part without teeth,but with theaddition of the pitch surface in a thin long chain line.  \nNOTE-For uniformity all figures in this international Standardare in first angle projection(Method E).It should be understoodthat the third angle projection(Method A)could equally wellhavebeen used without prejudice to the princples esfablishedndard  \n## 2.1 Contours and edges\n\n-in an unsectioned view,a solid gear bounded by thetip surface;  \n-in an axial section,a spur gear having twodiametrically opposed teeth,represented unsectioned,  \nTechnical drawings -Conventional representation of gears  \nD PREVIEkFIGURE 1  \n.iteh.ai)  \nFIGURE 2  \nFIGURE 3  \n2.4 Teeth  \n## 2.3 Root surface\n\nAs a general rule,do not represent the root surface exceptSpecify the teeth profile either by reference to a standardin sectional views.or by a drawing to a suitable scale.However,if it seems helpful to show it also on unsectionedIf it is essential to show one or two teeth on the drawingviews,always draw it,in this case,as a thin continuous lineitself (either to define the ends of a toothed portion or(see Figures 4,5 and 6).rack,or in order to specify the position of the teeth inrelation to a given axial plane),draw t","cbCaipZdRQX2nv3O","https://ap.wps.com/l/cbCaipZdRQX2nv3O","pdf",1052687,"English","# 1 Scope and field of application\n# 2.1 Contours and edges\n## 2.2 Pitch surface\n## 2.3 Root surface\n## 2.4 Teeth\n# 3 Assembly drawings (gear pairs)\n## 3.2 Internal engagement of cylindrical gears\n## 3.3 Engagement of pinion with rack\n## 3.4 Engagement of bevel gears","[{\"question\":\"What does ISO 2203:1973 specify for gear representations?\",\"answer\":\"It specifies conventional representation rules for the toothed portion of gears, including worm gearing and chain wheels, in technical drawings.\"},{\"question\":\"How should a gear be represented according to the fundamental principle?\",\"answer\":\"Except in axial section, a gear is represented as a solid part without teeth, with the pitch surface added using a thin long chain line.\"},{\"question\":\"What drawing conventions apply to assembly drawings of gear pairs?\",\"answer\":\"The detail drawing rules also apply, with additional guidance such as extending the pitch-surface line for a pair of bevel gears in projection parallel to the axis and handling concealed edges according to clarity needs.\"}]","Technical drawings - Conventional representation of gears - First edition - 1973 | PDF"]