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Covers dimensional control of gear teeth and mounting relations, angular dimension conventions, grouping and ordering of gear data, diameter definitions, manufacturing depiction rules, and title identification using “pinion” or “gear.”",{"@graph":14,"@context":73},[15,34,56],{"@type":16,"itemListElement":17},"BreadcrumbList",[18,23,27,31],{"item":19,"name":20,"@type":21,"position":22},"https://docshare.wps.com","Home","ListItem",1,{"item":24,"name":25,"@type":21,"position":26},"https://docshare.wps.com/document/","Document",2,{"item":28,"name":29,"@type":21,"position":30},"https://docshare.wps.com/document/technology/","Technology",3,{"item":32,"name":10,"@type":21,"position":33},"https://docshare.wps.com/document/gears-drafting-practice-4-9-1-gears-drafting-practice/662771/",4,{"url":32,"name":10,"@type":35,"image":36,"author":41,"headline":10,"publisher":44,"fileFormat":47,"inLanguage":8,"description":12,"dateModified":48,"datePublished":49,"encodingFormat":47,"isAccessibleForFree":50,"interactionStatistic":51},"DigitalDocument",{"url":37,"@type":38,"width":39,"height":40},"https://docshare.wps.com/thumbnails/gears-drafting-practice-4-9-1-gears-drafting-practice/662771.png","ImageObject",300,407,{"name":42,"@type":43},"DoDO","Person",{"url":19,"name":45,"@type":46},"DocShare","Organization","application/pdf","2026-10-30","2026-10-28",true,{"@type":52,"interactionType":53,"userInteractionCount":55},"InteractionCounter",{"@type":54},"ViewAction",5,{"@type":57,"mainEntity":58},"FAQPage",[59,65,69],{"name":60,"@type":61,"acceptedAnswer":62},"What types of gears are covered by the drafting guidance?","Question",{"text":63,"@type":64},"The document provides uniform gear drawing practices for bevel gears with intersecting axes and hypoid gears with nonparallel, nonintersecting axes.","Answer",{"name":66,"@type":61,"acceptedAnswer":67},"How should angular dimensions be expressed?",{"text":68,"@type":64},"All angular dimensions must be expressed in degrees and decimal portions thereof; degrees, minutes, and seconds may be used where desired.",{"name":70,"@type":61,"acceptedAnswer":71},"What key diameter definitions apply to external and internal gears?",{"text":72,"@type":64},"For external gears, the major diameter is the outside diameter and the minor diameter is the root diameter. For internal gears, the major diameter is the root diameter and the minor diameter is the inside diameter.","https://schema.org",{"og:url":32,"og:type":75,"og:title":10,"og:site_name":45,"og:description":12},"article",{"robots":77,"canonical":32},"index,follow",{"doc_id":79,"site_id":7},662771,1793222370,{"code":4,"msg":82,"data":83},"success",[84,88,92,96,100,104,109,114,119,122,126],{"id":22,"doc_module":4,"doc_module_name":25,"category_name":85,"show_sort_weight":86,"slug":87},"Story & Novel",90,"story-novel",{"id":26,"doc_module":4,"doc_module_name":25,"category_name":89,"show_sort_weight":90,"slug":91},"Literature",80,"literature",{"id":33,"doc_module":4,"doc_module_name":25,"category_name":93,"show_sort_weight":94,"slug":95},"Exam",70,"exam",{"id":55,"doc_module":4,"doc_module_name":25,"category_name":97,"show_sort_weight":98,"slug":99},"Comic",60,"comic",{"id":101,"doc_module":4,"doc_module_name":25,"category_name":29,"show_sort_weight":102,"slug":103},6,50,"technology",{"id":105,"doc_module":4,"doc_module_name":25,"category_name":106,"show_sort_weight":107,"slug":108},7,"Healthcare",40,"healthcare",{"id":110,"doc_module":4,"doc_module_name":25,"category_name":111,"show_sort_weight":112,"slug":113},8,"Research & Report",30,"research-report",{"id":115,"doc_module":4,"doc_module_name":25,"category_name":116,"show_sort_weight":117,"slug":118},9,"Religion & Spirituality",20,"religion-spirituality",{"id":117,"doc_module":4,"doc_module_name":25,"category_name":120,"show_sort_weight":117,"slug":121},"World Cup","world-cup",{"id":123,"doc_module":4,"doc_module_name":25,"category_name":124,"show_sort_weight":123,"slug":125},10,"Lifestyle","lifestyle",{"id":127,"doc_module":4,"doc_module_name":25,"category_name":128,"show_sort_weight":55,"slug":129},19,"General","general",{"code":4,"msg":82,"data":131},{"doc_id":79,"user_id":132,"nickname":42,"user_avatar":133,"doc_module":4,"category_id":101,"category_name":29,"doc_title":10,"doc_description":12,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":55,"is_deleted":4,"is_public":22,"is_downloadable":22,"audit_status":22,"page_count":139,"language":140,"language_code":8,"site_id":7,"html_lang":8,"table_of_contents":141,"faqs":142,"seo_title":143,"seo_description":12,"update_tm":80,"read_time":144},962093270745,"https://ap-avatar.wpscdn.com/davatar_9964176cb1d06d4a9deccf72a44ae3dc","1.0 General  \nThis section provides the basis for uniformity in engineering gears drawings and their technical data for gears with intersecting axes (bevel gears), and nonparallel, nonintersecting axes (hypoid gears) . It also discusses the method of specifying matched sets on a gear drawing.  \n2.0 Purpose  \nIt is the purpose of this section to provide formats, nomenclature, and definitions. The minimum data for the various gear types are defined. Where additional data are required, methods for specifying these data are shown. Slight deviations for critical applications are allowed, provided general formats are maintained.  \n2.1 Examples-Various types of gears are illustrated by sample drawings.  \n2.2 Dimensioning and Notes-Illustrations show only those dimensions which control the gear teeth and their relation to the specified mounting. All other dimensions and specifications shall conform to recommended drafting practice. Dimensional values show the number of decimal places recommended in each instance. Where required to assure calculations, such as for pin measurement or master gears, accurate to the fourth place to the right of the decimal point, it is necessary to specify the base diameter, pitch diameter, helix angle, and nonwhole number diametral pitch to eight or seven significant places.  \n2.2.1 Angular Dimensions-All angular dimensions shall be expressed in degrees and decimal portions thereof.(Where desired, the angle may be given in degrees, minutes and seconds.)  \n3.0 Applicable Documents  \nThe following reference documents contain additional information and should be used when applicable. ASME Y14.38 Abbreviations and Acronyms  \nASME Y14.1 Decimal Inch. Drawing Sheet Sizes and Format ASME Y14.1M Metric Drawing Sheet Sizes and Format ASME Y14.2M Line Conventions and Lettering  \nASME Y14.3M Multiview and Sectional View Drawings ASME Y14.5M Dimensioning and Tolerancing  \nASME Y14.36M Surface Texture Symbols  \nAGMA 112.04 Gear Nomenclature-Terms, Definitions, Symbols, and Abbreviations  \n4.0 Gear Drawing Practices  \n4.1 Arrangement-The gear drawing shall clearly illustrate the general configuration. The method of manufacture, the quantities involved and the desired inspection method may influence the method of dimensioning. Illustrations of various gear configurations are provided for guidance only and are not mandatory.  \n4.1.1 Gear Data-Gear data shall be grouped as illustrated and shall be presented in the order shown. The location of the gear data on the drawing is optional.  \n4.1.2 Specifying a Diameter – For external gears only, the major diameter is specified as the outside diameter and the minor diameter is specified as the root diameter. For internal gears the major diameter is specified as the root diameter and the minor diameter is specified as the inside diameter. This is in keeping with present usage in some segments of the gear industry.  \n4.2 Manufacturing Method-The drawing shall clearly depict the product without reference to a manufacturing or inspection method. This rule may be disregarded only where special situations are involved which do not lend themselves to exact specifications and tool inspection information is necessary for control.  \n4.3 Drawing Title-For identification purposes, the title should include the word pinion or gear as applicable.  \n4.4 Straight Bevel Gear Teeth  \n4.4.1 Straight bevel gear and pinion teeth are drawn as shown in Figure 1. The mounting distance shown on the drawing is an assembly dimension and is specified as a reference dimension.  \n| | .XXX | A |\n| --- | --- | --- |\n|  |  |  |\n\nXX.XX˚  \nXX.XX˚  \nSee note 1  \nFACE APEX  \nAXIS OF MATING MEMBER  \n.XXX  \n.XXX  \n( .XXX) ~~ ~~  \n(X.XXXX)  \n(X.XXX)  \nMounting Distance  \nX.XXX  \nX.XXX See note 1  \nX.XXX  \nX.XXX  \nX.XXXX  \nX.XXXX  \nA  \nXX.XX˚  \nXX.XX˚  \nXX.XX˚  \nXX.XX˚ See note 1  \nNote 1: When face angle distance and back angle distance (See Figure 9) are  \nused for dimensioning the gear blank, the face angle and the b","cbCaisqcuQ9muoog","https://ap.wps.com/l/cbCaisqcuQ9muoog","pdf",749805,23,"English","# General\n# Purpose\n# Examples\n# Dimensioning and Notes\n# Applicable Documents\n# Gear Drawing Practices\n## Arrangement\n## Specifying a Diameter\n## Manufacturing Method\n## Drawing Title\n## Straight Bevel Gear Teeth\n## Spiral Bevel Gear Teeth","[{\"question\":\"What types of gears are covered by the drafting guidance?\",\"answer\":\"The document provides uniform gear drawing practices for bevel gears with intersecting axes and hypoid gears with nonparallel, nonintersecting axes.\"},{\"question\":\"How should angular dimensions be expressed?\",\"answer\":\"All angular dimensions must be expressed in degrees and decimal portions thereof; degrees, minutes, and seconds may be used where desired.\"},{\"question\":\"What key diameter definitions apply to external and internal gears?\",\"answer\":\"For external gears, the major diameter is the outside diameter and the minor diameter is the root diameter. For internal gears, the major diameter is the root diameter and the minor diameter is the inside diameter.\"}]","Gears Drafting Practice - 4-9-1 - Gears Drafting Practice | PDF",58]