[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"doc-seo-664836-105":3,"detail-sidebar-cat-0-en-105":79,"doc-detail-664836-en":129},{"code":4,"msg":5,"data":6},0,"ok",{"site_id":7,"language":8,"slug":9,"title":10,"keywords":11,"description":12,"schema_data":13,"social_meta":72,"head_meta":74,"extra_data":76,"updated_unix":78},105,"en","types-of-engineering-tolerance-dimensional-and-gdt-tolerance-types","Types-of-engineering-tolerance - Dimensional and GD&T Tolerance Types","","Guide to engineering tolerance concepts, focusing on dimensional tolerance and GD&T. Explains dimensional tolerance used to define limits for drawing dimensions and how it differs from general tolerances, including bilateral and unilateral forms with worked examples using hole size 10 mm and ±0.05 mm / +0.05 mm. Introduces GD&T (Geometric Dimensioning and Tolerancing) and summarizes its four categories—form, orientation, location, runout—covering 13 types, with table overview and definitions for linearity and flatness.",{"@graph":14,"@context":71},[15,34,54],{"@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/types-of-engineering-tolerance-dimensional-and-gdt-tolerance-types/664836/",4,{"url":32,"name":10,"@type":35,"image":36,"author":41,"headline":10,"publisher":44,"fileFormat":47,"inLanguage":8,"description":12,"dateModified":48,"datePublished":48,"encodingFormat":47,"isAccessibleForFree":49,"interactionStatistic":50},"DigitalDocument",{"url":37,"@type":38,"width":39,"height":40},"https://docshare.wps.com/thumbnails/types-of-engineering-tolerance-dimensional-and-gdt-tolerance-types/664836.png","ImageObject",300,407,{"name":42,"@type":43},"Damian","Person",{"url":19,"name":45,"@type":46},"DocShare","Organization","application/pdf","2026-10-29",true,{"@type":51,"interactionType":52,"userInteractionCount":26},"InteractionCounter",{"@type":53},"ViewAction",{"@type":55,"mainEntity":56},"FAQPage",[57,63,67],{"name":58,"@type":59,"acceptedAnswer":60},"What is dimensional tolerance and why is it different from general tolerances?","Question",{"text":61,"@type":62},"Dimensional tolerance sets allowable limits for drawing dimensions (such as length, position, angle, and size) and indicates tolerances that differ from general tolerances. It has no clear universal standard and can be specified based on designer intent, within achievable processing limits.","Answer",{"name":64,"@type":59,"acceptedAnswer":65},"How do bilateral tolerance and unilateral tolerance differ?",{"text":66,"@type":62},"Bilateral tolerance allows variation on both sides of the reference dimension, meaning the actual value can shift upward and downward. Unilateral tolerance restricts the acceptable variation to only one side of the basic dimension.",{"name":68,"@type":59,"acceptedAnswer":69},"What does GD&T include, and what are its main categories?",{"text":70,"@type":62},"GD&T (Geometric Dimensioning and Tolerancing) communicates design intent and controls manufacturing variations. It is divided into form, orientation, location, and runout tolerances, totaling 13 types.","https://schema.org",{"og:url":32,"og:type":73,"og:title":10,"og:site_name":45,"og:description":12},"article",{"robots":75,"canonical":32},"index,follow",{"doc_id":77,"site_id":7},664836,1793275148,{"code":4,"msg":80,"data":81},"success",[82,86,90,94,99,103,108,113,118,121,125],{"id":22,"doc_module":4,"doc_module_name":25,"category_name":83,"show_sort_weight":84,"slug":85},"Story & Novel",90,"story-novel",{"id":26,"doc_module":4,"doc_module_name":25,"category_name":87,"show_sort_weight":88,"slug":89},"Literature",80,"literature",{"id":33,"doc_module":4,"doc_module_name":25,"category_name":91,"show_sort_weight":92,"slug":93},"Exam",70,"exam",{"id":95,"doc_module":4,"doc_module_name":25,"category_name":96,"show_sort_weight":97,"slug":98},5,"Comic",60,"comic",{"id":100,"doc_module":4,"doc_module_name":25,"category_name":29,"show_sort_weight":101,"slug":102},6,50,"technology",{"id":104,"doc_module":4,"doc_module_name":25,"category_name":105,"show_sort_weight":106,"slug":107},7,"Healthcare",40,"healthcare",{"id":109,"doc_module":4,"doc_module_name":25,"category_name":110,"show_sort_weight":111,"slug":112},8,"Research & Report",30,"research-report",{"id":114,"doc_module":4,"doc_module_name":25,"category_name":115,"show_sort_weight":116,"slug":117},9,"Religion & Spirituality",20,"religion-spirituality",{"id":116,"doc_module":4,"doc_module_name":25,"category_name":119,"show_sort_weight":116,"slug":120},"World Cup","world-cup",{"id":122,"doc_module":4,"doc_module_name":25,"category_name":123,"show_sort_weight":122,"slug":124},10,"Lifestyle","lifestyle",{"id":126,"doc_module":4,"doc_module_name":25,"category_name":127,"show_sort_weight":95,"slug":128},19,"General","general",{"code":4,"msg":80,"data":130},{"doc_id":77,"user_id":131,"nickname":42,"user_avatar":132,"doc_module":4,"category_id":100,"category_name":29,"doc_title":10,"doc_description":12,"doc_content":133,"file_id":134,"file_url":135,"file_type":136,"file_size":137,"view_count":26,"is_deleted":4,"is_public":22,"is_downloadable":22,"audit_status":22,"page_count":138,"language":139,"language_code":8,"site_id":7,"html_lang":8,"table_of_contents":140,"faqs":141,"seo_title":142,"seo_description":12,"update_tm":78,"read_time":143},137451208677,"https://ap-avatar.wpscdn.com/davatar_155a257f0dc6eb9ab79c44ca47cae57d","Types of Tolerance  \n[www.sogaworks.com](www.sogaworks.com)  \nTolerance  \nDimension Tolerance  \nBilateral Tolerance  \nUnilateral Tolerance  \nGD&T  \nForm Tolerance  \nForm and Location Tolerance Orientation Tolerance Location Tolerance  \nRunout Tolerance  \nDimensional Tolerance  \nDimensional tolerance is the tolerance applied to the dimensions marked in the drawing, dimensional objects such as length, distance, position, angle, size, aperture, fillet and chamfer, etc. It is used to indicate tolerances different from general tolerances. Unlike general tolerances, dimensional toleranceshave no clear standards and can be arbitrarily specified according to the designer’s intention, but the range of achievable tolerances is limited depending on the processing method, etc. Dimensional tolerances include 2 types, bilateral tolerances and unilateral tolerances.  \nBilateral Tolerance  \nBilateral tolerance refers to the allowable variation of a dimension that exists within a specified range on either side of the reference dimension. In other words, the dimension may vary in both the upper and lower directions relative to the reference dimension.  \nExample  \nIf the basic size of the hole is 10mm and the bilateral tolerance is ±0 .05mm, then the actual dimension range of the shaft is 9. 95mm to 10.05mm.  \nUnilateral Tolerance  \nUnilateral tolerance, however, refers to the allowed variation of a dimension to be on only one side of the basic dimension; that is, the acceptable tolerance range is limited to one direction.  \nExample  \nIf the basic size of a hole is 10 mm and the unilateral tolerance is +0 .05mm, then the actual size range of the hole is from 10.00 mm to 10.05mm.  \nGD&T  \nGD&T, short for Geometric Dimensioning and Tolerancing, is a system for defining and communicating design intent and engineering tolerances that helps engineers and manufacturers optimally control variations in manufacturing processes.  \nGeometric Dimensioning and Tolerancing can be divided into four categories: form tolerance, orientation tolerance, location tolerance, and runout tolerance, which in total consists of 13 types.  \nOverview  \n\n| Type | Characteristics | Symbol |\n| --- | --- | --- |\n| Form | Linearity | |\n|  | Flatness | |\n|  | Roundness | |\n|  | Cylindricity | |\n| Form and Location | Profile of Line | |\n|  | Profile of Plane | |\n| Orientation | Parallelism | |\n|  | Perpendicularity | |\n|  | Angularity | |\n| Location | Position | |\n|  | Coaxiality | |\n|  | Symmetry | |\n| Runout | Circular Runout | |\n|  | Total Runout | |\n\nForm Tolerance  \nLinearity  \nExample  \nLinearity is the allowable deviation from a straight line over a specified length or surface. It is used to define how much a feature of a part can vary from being perfectly linear.  \nIn a given plane, the line segments to be inspected shall lie between two parallel lines at a distance of 0. 1mm.  \nFlatness  \nExample  \nFlatness is a geometrical condition that defines the deviation of a surface from an ideal plane. It provides a metric of how much the surface deviates from ideal flatness, and thus it represents the homogeneity of a surface over its whole area.  \nThis surface shall be between two parallel planes separated by only 0.3 mm.","cbCaicxo3ac05mn9","https://ap.wps.com/l/cbCaicxo3ac05mn9","pdf",691547,27,"English","# Tolerance Basics\n## Dimensional Tolerance\n## Bilateral Tolerance\n## Unilateral Tolerance\n# GD&T Overview\n## Categories and 13 Types\n## Form Tolerance: Linearity\n## Form Tolerance: Flatness","[{\"question\":\"What is dimensional tolerance and why is it different from general tolerances?\",\"answer\":\"Dimensional tolerance sets allowable limits for drawing dimensions (such as length, position, angle, and size) and indicates tolerances that differ from general tolerances. It has no clear universal standard and can be specified based on designer intent, within achievable processing limits.\"},{\"question\":\"How do bilateral tolerance and unilateral tolerance differ?\",\"answer\":\"Bilateral tolerance allows variation on both sides of the reference dimension, meaning the actual value can shift upward and downward. Unilateral tolerance restricts the acceptable variation to only one side of the basic dimension.\"},{\"question\":\"What does GD\\u0026T include, and what are its main categories?\",\"answer\":\"GD\\u0026T (Geometric Dimensioning and Tolerancing) communicates design intent and controls manufacturing variations. It is divided into form, orientation, location, and runout tolerances, totaling 13 types.\"}]","Types-of-engineering-tolerance - Dimensional and GD&T Tolerance Types | PDF",68]