{"id":4112,"date":"2013-10-17T10:02:11","date_gmt":"2013-10-17T14:02:11","guid":{"rendered":"http:\/\/74.220.216.78\/?p=4112"},"modified":"2021-04-21T15:56:13","modified_gmt":"2021-04-21T19:56:13","slug":"design-of-the-bore","status":"publish","type":"post","link":"https:\/\/daemar.com\/fr\/design-of-the-bore.html\/","title":{"rendered":"Bore Design"},"content":{"rendered":"<p><a href=\"https:\/\/daemar.com\/fr\">Home<\/a> &gt;&gt; <a href=\"https:\/\/daemar.com\/fr\/shaft_seals_14.html\">Shaft Seals<\/a> &gt;&gt; <a href=\"https:\/\/daemar.com\/fr\/oilseals_36.html\/\">Oil Seals<\/a> &gt;&gt;Bore Design<\/p>\n<div class=\"row-fluid\">\n<div class=\"row-fluid\">\n<div class=\"rhcol span7\">\n<h1>Bore Design<\/h1>\n<\/div>\n<div class=\"rhcol span1\"><\/div>\n<div class=\"rhcol span4\">\n<div class=\"toggle-box\"><h3 class=\"toggle-title sws_toggle1\">Ressources techniques<\/h3><div class=\"toggle-content\"><\/p>\n<ul>\n<li><a href=\"http:\/\/catalog.daemar.com\/category\/oil-seals-2&amp;bc=100%7C1002%7C1025\">Le joints d&#8217;\u00e9tanch\u00e9it\u00e9 Catalogue en ligne<\/a><\/li>\n<li><a title=\"Construction of DMR Seals\" href=\"https:\/\/daemar.com\/fr\/construction-of-dmr-seals.html\/\">Construction de joints d&#8217;\u00e9tanch\u00e9it\u00e9<\/a><\/li>\n<li><a title=\"Sealing Element Material Properties\" href=\"https:\/\/daemar.com\/fr\/sealing-element-material-properties.html\/\">Mat\u00e9riau de l&#8217;\u00e9l\u00e9ment d&#8217;\u00e9tanch\u00e9it\u00e9 de propri\u00e9t\u00e9s<\/a><\/li>\n<li><a title=\"Fluid Compatibility for Elastomers\" href=\"https:\/\/daemar.com\/fr\/fluid_compatibility_113.html\/\">S\u00e9lecteur de compatibilit\u00e9 avec les fluides<\/a><\/li>\n<li><a title=\"Tolerance of DMR Shaft Seals\" href=\"https:\/\/daemar.com\/fr\/tolerance-of-dmr-shaft-seals.html\/\">La tol\u00e9rance de joints d&#8217;\u00e9tanch\u00e9it\u00e9<\/a><\/li>\n<li><a title=\"Design of the Shaft\" href=\"https:\/\/daemar.com\/fr\/design-of-the-shaft.html\/\">Conception de l&#8217;arbre<\/a><\/li>\n<li><a title=\"Design of the Bore\" href=\"https:\/\/daemar.com\/fr\/design-of-the-bore.html\/\">Conception d&#8217;al\u00e9sage<\/a><\/li>\n<li><a title=\"Seal Installation\" href=\"https:\/\/daemar.com\/fr\/seal-installation.html\/\">L&#8217;installation du joints d&#8217;\u00e9tanch\u00e9it\u00e9<\/a><\/li>\n<li><a href=\"https:\/\/daemar.com\/fr\/wp-content\/uploads\/sites\/3\/2021\/04\/DMR_ShaftSealInterchange_BlackBlue_P0A-001_041521-French.pdf\" target=\"_blank\" rel=\"noopener noreferrer\">\u00c9change de joint d&#8217;arbre (national et SKF \/ CR)<\/a><\/li>\n<li><a title=\"Glossary of Shaft Seal Terms\" href=\"https:\/\/daemar.com\/fr\/glossary-of-shaft-seal-terms.html\/\">Glossaire de termes du joints d&#8217;\u00e9tanch\u00e9it\u00e9<\/a><\/li>\n<li><a title=\"Seal Design Sheet\" href=\"https:\/\/daemar.com\/fr\/seal-design-sheet.html\/\">Feuille de conception de joints d&#8217;\u00e9tanch\u00e9it\u00e9<\/a><\/li>\n<\/ul>\n<p><\/div><\/div>\n<\/div>\n<\/div>\n<hr style=\"border: 1px solid #cecece\" \/>\n<div class=\"row-fluid\">\n<div class=\"rhcol span6\">\n<h3>Bore Material<\/h3>\n<p>Steel and cast iron are typically used for bore housings as they provide a good surface for accepting both metal and rubber O.D. seals. For soft metal, such as Aluminum, a rubber O.D. is recommended. There is no recommended Rockwell hardness for the bore. However, the bore should be of sufficient hardness to withstand the seal\u2019s O.D.<\/p>\n<\/div>\n<div class=\"rhcol span6\">\n<h3>Bore Finish<\/h3>\n<p>The bore finish should be 0.8 to 1.6 \u03bcm Ra (32 to 64 \u03bcin Ra) for metal O.D. seals and should be 2.5 to 5.0 \u03bcm Ra (100 to 200 \u03bcin Ra) for rubber O.D. seals.<br \/>\nIf surface roughness exceeds this then paint sealant can be added to the O.D. of the metal seal.<\/p>\n<\/div>\n<\/div>\n<div class=\"row-fluid\">\n<div class=\"span6 rhcol\">\n<h3>Bore Lead-in Chamfer<\/h3>\n<p>The lead corner, or entering edge of the bore should be chamfered and free of burrs (See figure below).<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-4288\" src=\"https:\/\/daemar.com\/fr\/wp-content\/uploads\/sites\/3\/2013\/10\/dmr-shaft-bore-chamfer.jpg\" alt=\"DMR_BoreChamfer_01\" width=\"400\" height=\"400\" srcset=\"https:\/\/daemar.com\/fr\/wp-content\/uploads\/sites\/3\/2013\/10\/dmr-shaft-bore-chamfer.jpg 400w, https:\/\/daemar.com\/fr\/wp-content\/uploads\/sites\/3\/2013\/10\/dmr-shaft-bore-chamfer-150x150.jpg 150w, https:\/\/daemar.com\/fr\/wp-content\/uploads\/sites\/3\/2013\/10\/dmr-shaft-bore-chamfer-300x300.jpg 300w, https:\/\/daemar.com\/fr\/wp-content\/uploads\/sites\/3\/2013\/10\/dmr-shaft-bore-chamfer-200x200.jpg 200w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/><\/p>\n<p>&nbsp;<\/p>\n<\/div>\n<div class=\"span6 rhcol\">\n<h3>Bore Tolerance in Inches<\/h3>\n<div id=\"sws_table2\" class=\"sws_custom_table\" style=\"width:100%\"><\/p>\n<table>\n<thead>\n<tr>\n<th>Bore Diameter<\/th>\n<th>Bore Tolerance<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr class=\"odd\">\n<td>up to 3.000<\/td>\n<td>+\/- 0.001<\/td>\n<\/tr>\n<tr>\n<td>3.001 to 6.000<\/td>\n<td>+\/- 0.0015<\/td>\n<\/tr>\n<tr class=\"odd\">\n<td>6.001 to 10.000<\/td>\n<td>+\/- 0.002<\/td>\n<\/tr>\n<tr>\n<td>10.001 to 20.000<\/td>\n<td>+ 0.002<br \/>\n&#8211; 0.004<\/td>\n<\/tr>\n<tr class=\"odd\">\n<td>20.001 to 40.000<\/td>\n<td>+0.002<br \/>\n&#8211; 0.006<\/td>\n<\/tr>\n<tr>\n<td>40.001 to 60.000<\/td>\n<td>+0.002<br \/>\n&#8211; 0.010<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><\/div><script>jQuery(document).ready(function($){custom_table({'bzebra':'e8edff','bhover':'d0dafd','hbgcolor':'b9c9fe','bbgcolor':'e8edff','bbtype':'solid','bbwidth':'1','bbcolor':'ffffff','tbcolor':'9BAFF1','tbwidth':'2','tbtype':'hidden','bgcolor':'ffffff','bcolor':'666699','hcolor':'003399','hbcolor':'ffffff','hbwidth':'1','hbtype':'solid','sel':'#sws_table2','template':'sws_custom_table','width':'100%'});});<\/script>\n<h3>Bore Tolerances in Metric<\/h3>\n<div id=\"sws_table4\" class=\"sws_custom_table\" style=\"width:100%\"><\/p>\n<table>\n<thead>\n<tr>\n<th>Bore Diameter<\/th>\n<th>Bore Tolerance<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr class=\"odd\">\n<td>up to 6<\/td>\n<td>+ 0.018 \/ &#8211; 0.000<\/td>\n<\/tr>\n<tr>\n<td>6 to 10<\/td>\n<td>+ 0.022 \/ &#8211; 0.000<\/td>\n<\/tr>\n<tr class=\"odd\">\n<td>10 to 18<\/td>\n<td>+ 0.027 \/ &#8211; 0.000<\/td>\n<\/tr>\n<tr>\n<td>18 to 30<\/td>\n<td>+ 0.033 \/ &#8211; 0.000<\/td>\n<\/tr>\n<tr class=\"odd\">\n<td>30 to 50<\/td>\n<td>+ 0.039 \/ &#8211; 0.000<\/td>\n<\/tr>\n<tr>\n<td>50 to 80<\/td>\n<td>+ 0.046 \/ &#8211; 0.000<\/td>\n<\/tr>\n<tr class=\"odd\">\n<td>80 to 120<\/td>\n<td>+ 0.054 \/ &#8211; 0.000<\/td>\n<\/tr>\n<tr>\n<td>120 to 180<\/td>\n<td>+ 0.063 \/ &#8211; 0.000<\/td>\n<\/tr>\n<tr class=\"odd\">\n<td>180 to 250<\/td>\n<td>+ 0.072 \/ &#8211; 0.000<\/td>\n<\/tr>\n<tr>\n<td>250 to 315<\/td>\n<td>+ 0.081 \/ &#8211; 0.000<\/td>\n<\/tr>\n<tr class=\"odd\">\n<td>315 to 400<\/td>\n<td>+ 0.089 \/ &#8211; 0.000<\/td>\n<\/tr>\n<tr>\n<td>400 to 500<\/td>\n<td>+ 0.097 \/ &#8211; 0.000<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><\/div><script>jQuery(document).ready(function($){custom_table({'bzebra':'e8edff','bhover':'d0dafd','hbgcolor':'b9c9fe','bbgcolor':'e8edff','bbtype':'solid','bbwidth':'1','bbcolor':'ffffff','tbcolor':'9BAFF1','tbwidth':'2','tbtype':'hidden','bgcolor':'ffffff','bcolor':'666699','hcolor':'003399','hbcolor':'ffffff','hbwidth':'1','hbtype':'solid','sel':'#sws_table4','template':'sws_custom_table','width':'100%'});});<\/script>\n<\/div>\n<\/div>\n<h3><\/h3>\n<h3><\/h3>\n<h3><\/h3>\n<p>&nbsp;<\/p>\n<\/div>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Home &gt;&gt; Shaft Seals &gt;&gt; Oil Seals &gt;&gt;Bore Design Bore Design Bore Material Steel and cast iron are typically used for bore housings as they [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":10899,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[3,43],"tags":[187,310,196,192],"class_list":["post-4112","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-seal","category-shaft-seals","tag-bore-design","tag-diameter-tolerance","tag-shaft-seals-2","tag-surface-finish"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Bore Design - Daemar Inc \u2014 Joints Toriques - \u00c9tanch\u00e9it\u00e9 - Bagues de retenue - Coussinets - Caplugs - Cales de support - Clefs en barre<\/title>\n<meta name=\"description\" content=\"The correct bore design will improve the lifetime performance of seals. 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