{"id":4110,"date":"2013-10-16T16:29:54","date_gmt":"2013-10-16T20:29:54","guid":{"rendered":"http:\/\/74.220.216.78\/?p=4110"},"modified":"2021-04-21T15:53:14","modified_gmt":"2021-04-21T19:53:14","slug":"design-of-the-shaft","status":"publish","type":"post","link":"https:\/\/daemar.com\/fr\/design-of-the-shaft.html\/","title":{"rendered":"Design of the Shaft"},"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; Design of the Shaft<\/p>\n<div class=\"row-fluid\">\n<div class=\"row-fluid\">\n<div class=\"rhcol span7\">\n<h1>Design of the Shaft<\/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<div class=\"row-fluid\">\n<div class=\"rhcol span6\">\n<h3>The Design of the Shaft<\/h3>\n<p>Proper application design assures proper sealing performance. Using the following guide will ensure the best possible sealing environment.<\/p>\n<\/div>\n<div class=\"rhcol span6\">\n<h3>Shaft Material and Finish<\/h3>\n<p>Seals perform best on medium to high carbon steel (SAE 1035, 1045) or stainless steel. The shaft must be hardened to Rockwell C45 minimum. We recommend the shaft to be machined to a surface roughness of 0.20 to 0.8 \u00b5m Ra (8 to 32 \u00b5in Ra). This shaft finish can be best obtained by plunge grinding.<\/p>\n<\/div>\n<\/div>\n<div class=\"row-fluid\">\n<div class=\"span6 rhcol\">\n<h3>Shaft 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>Nominal Shaft Diameter<\/th>\n<th>Tolerance<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr class=\"odd\">\n<td>up to 4.000<\/td>\n<td>+\/- 0.003<\/td>\n<\/tr>\n<tr>\n<td>4.000 to 6.000<\/td>\n<td>+\/- 0.004<\/td>\n<\/tr>\n<tr class=\"odd\">\n<td>6.000 to 10.000<\/td>\n<td>+\/- 0.005<\/td>\n<\/tr>\n<tr>\n<td>over 10.000<\/td>\n<td>+\/- 0.006<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><\/div><script>jQuery(document).ready(function($){custom_table({'bzebra':'e8edff','bhover':'d0dafd','hbgcolor':'b9c9fe','bbgcolor':'e8edff','bbtype':'solid','bbwidth':'1','bbcolor':'ffffff','tbcolor':'9BAFF1','tbwidth':'2','tbtype':'hidden','bgcolor':'ffffff','bcolor':'666699','hcolor':'003399','hbcolor':'ffffff','hbwidth':'1','hbtype':'solid','sel':'#sws_table2','template':'sws_custom_table','width':'100%'});});<\/script>\n<\/div>\n<div class=\"span6 rhcol\">\n<h3>Shaft Tolerance in Metric<\/h3>\n<div id=\"sws_table4\" class=\"sws_custom_table\" style=\"width:100%\"><\/p>\n<table>\n<thead>\n<tr>\n<th>Nominal Shaft Diameter<\/th>\n<th>Tolerance<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr class=\"odd\">\n<td>0 to 3<\/td>\n<td>+ 0.000 \/ -0.060<\/td>\n<\/tr>\n<tr>\n<td>3 to 6<\/td>\n<td>+ 0.000 \/ -0.075<\/td>\n<\/tr>\n<tr class=\"odd\">\n<td>6 to 10<\/td>\n<td>+ 0.000 \/ -0.090<\/td>\n<\/tr>\n<tr>\n<td>10 to 18<\/td>\n<td>+ 0.000 \/ -0.110<\/td>\n<\/tr>\n<tr class=\"odd\">\n<td>18 to 30<\/td>\n<td>+ 0.000 \/ -0.130<\/td>\n<\/tr>\n<tr>\n<td>30 to 50<\/td>\n<td>+ 0.000 \/ -0.160<\/td>\n<\/tr>\n<tr class=\"odd\">\n<td>50 to 80<\/td>\n<td>+ 0.000 \/ -0.190<\/td>\n<\/tr>\n<tr>\n<td>80 to 120<\/td>\n<td>+ 0.000 \/ -0.220<\/td>\n<\/tr>\n<tr class=\"odd\">\n<td>120 to 180<\/td>\n<td>+ 0.000 \/ -0.250<\/td>\n<\/tr>\n<tr>\n<td>180 to 250<\/td>\n<td>+ 0.000 \/ -0.290<\/td>\n<\/tr>\n<tr class=\"odd\">\n<td>250 to 315<\/td>\n<td>+ 0.000 \/ -0.320<\/td>\n<\/tr>\n<tr>\n<td>315 to 400<\/td>\n<td>+ 0.000 \/ -0.360<\/td>\n<\/tr>\n<tr class=\"odd\">\n<td>400 to 500<\/td>\n<td>+ 0.000 \/ -0.400<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><\/div><script>jQuery(document).ready(function($){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<div class=\"row-fluid\">\n<div class=\"span6 rhcol\">\n<div class=\"row-fluid\">\n<div class=\"span6 rhcol\"><\/div>\n<\/div>\n<div class=\"row-fluid\">\n<div class=\"span6 rhcol\"><\/div>\n<div class=\"span6 rhcol\"><\/div>\n<\/div>\n<h3><\/h3>\n<h3>Shaft Lead-in Chamfer<\/h3>\n<p>The end of the shaft must be chamfered, corners must be rounded, free from burrs and sharp edges to protect seals from damage during assembly.<\/p>\n<\/div>\n<div class=\"span6 rhcol\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-4248\" src=\"https:\/\/daemar.com\/fr\/wp-content\/uploads\/sites\/3\/2013\/10\/dmr-shaft-design-lead-chamfer.jpg\" alt=\"dmr-shaft-design-lead-chamfer\" width=\"300\" height=\"200\" \/><\/div>\n<\/div>\n<div class=\"row-fluid\">\n<div class=\"span6 rhcol\">\n<div id=\"sws_table6\" class=\"sws_custom_table\" style=\"width:100%\"><\/p>\n<table>\n<thead>\n<tr>\n<th>Shaft Diameter (inches)<\/th>\n<th>C (inches)<\/th>\n<th>R (inches)<\/th>\n<th>D<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr class=\"odd\">\n<td>up to 1.182<\/td>\n<td>0.060<\/td>\n<td>0.177<\/td>\n<td>15\u00ba<\/td>\n<\/tr>\n<tr>\n<td>1.183 to 3.151<\/td>\n<td>0.079<\/td>\n<td>0.177<\/td>\n<td>15\u00ba<\/td>\n<\/tr>\n<tr>\n<td>3.152 to 4.726<\/td>\n<td>0.098<\/td>\n<td>0.236<\/td>\n<td>15\u00ba<\/td>\n<\/tr>\n<tr>\n<td>4.727 to 9.846<\/td>\n<td>0.118<\/td>\n<td>0.236<\/td>\n<td>15\u00ba<\/td>\n<\/tr>\n<tr class=\"odd\">\n<td>9.847 to 19.693<\/td>\n<td>0.197<\/td>\n<td>0.374<\/td>\n<td>15\u00ba<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><\/div><script>jQuery(document).ready(function($){custom_table({'bzebra':'e8edff','bhover':'d0dafd','hbgcolor':'b9c9fe','bbgcolor':'e8edff','bbtype':'solid','bbwidth':'1','bbcolor':'ffffff','tbcolor':'9BAFF1','tbwidth':'2','tbtype':'hidden','bgcolor':'ffffff','bcolor':'666699','hcolor':'003399','hbcolor':'ffffff','hbwidth':'1','hbtype':'solid','sel':'#sws_table6','template':'sws_custom_table','width':'100%'});});<\/script>\n<\/div>\n<div class=\"span6 rhcol\">\n<div id=\"sws_table8\" class=\"sws_custom_table\" style=\"width:100%\"><\/p>\n<table>\n<thead>\n<tr>\n<th>Shaft Diameter (mm)<\/th>\n<th>C (mm)<\/th>\n<th>R (mm)<\/th>\n<th>D<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr class=\"odd\">\n<td>up to 30.0<\/td>\n<td>1.5<\/td>\n<td>4.5<\/td>\n<td>15\u00ba<\/td>\n<\/tr>\n<tr>\n<td>30.1 to 80.0<\/td>\n<td>2.0<\/td>\n<td>4.5<\/td>\n<td>15\u00ba<\/td>\n<\/tr>\n<tr>\n<td>80.1 to 120.0<\/td>\n<td>2.5<\/td>\n<td>6.0<\/td>\n<td>15\u00ba<\/td>\n<\/tr>\n<tr>\n<td>120.1 to 250.0<\/td>\n<td>3<\/td>\n<td>6.0<\/td>\n<td>15\u00ba<\/td>\n<\/tr>\n<tr class=\"odd\">\n<td>250.1 to 500.0<\/td>\n<td>5<\/td>\n<td>9.5<\/td>\n<td>15\u00ba<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><\/div><script>jQuery(document).ready(function($){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_table8','template':'sws_custom_table','width':'100%'});});<\/script>\n<\/div>\n<\/div>\n<div class=\"row-fluid\">\n<div class=\"rhcol span11\">\n<h3>Shaft Eccentricity<\/h3>\n<p>There are two types of shaft eccentricities that affect the seal\u2019s performance. They are Shaft to Bore Misalignment and Dynamic Run-Out.<\/p>\n<\/div>\n<\/div>\n<div class=\"row-fluid\">\n<div class=\"span6 rhcol\">\n<h3>Shaft-to-Bore Misalignment<\/h3>\n<p>Shaft-to-bore misalignment is the distance that the centre of shaft rotation is from the centre of the bore. This situation causes excess sealing lip wear, and poor<br \/>\ncontact between the lip and shaft on the opposite side<\/p>\n<\/div>\n<div class=\"span6 rhcol\">\n<h3>Dynamic Run-Out<\/h3>\n<p>Dynamic run-out is twice the distance the centre of shaft is displaced from the actual centre of rotation. Meaning that the shaft is not rotating around its<br \/>\ncentre, causing the lip to flex in and out in order to maintain shaft contact.<br \/>\nIn the extreme the lip will not be able to provide the required seal.<\/p>\n<\/div>\n<\/div>\n<div class=\"row-fluid\">\n<div class=\"span6 rhcol\"><a href=\"https:\/\/daemar.com\/fr\/wp-content\/uploads\/sites\/3\/2013\/10\/dmr-shaft-to-bore-misalignment.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-4264\" src=\"https:\/\/daemar.com\/fr\/wp-content\/uploads\/sites\/3\/2013\/10\/dmr-shaft-to-bore-misalignment.jpg\" alt=\"DMR_ShaftToBoreMisalignment_01\" width=\"310\" height=\"230\" srcset=\"https:\/\/daemar.com\/fr\/wp-content\/uploads\/sites\/3\/2013\/10\/dmr-shaft-to-bore-misalignment.jpg 1591w, https:\/\/daemar.com\/fr\/wp-content\/uploads\/sites\/3\/2013\/10\/dmr-shaft-to-bore-misalignment-300x222.jpg 300w, https:\/\/daemar.com\/fr\/wp-content\/uploads\/sites\/3\/2013\/10\/dmr-shaft-to-bore-misalignment-1024x760.jpg 1024w, https:\/\/daemar.com\/fr\/wp-content\/uploads\/sites\/3\/2013\/10\/dmr-shaft-to-bore-misalignment-400x296.jpg 400w\" sizes=\"auto, (max-width: 310px) 100vw, 310px\" \/><\/a><\/div>\n<div class=\"span6 rhcol\"><a href=\"https:\/\/daemar.com\/fr\/wp-content\/uploads\/sites\/3\/2013\/10\/dmr-shaft-dynamic-runout.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-4263\" src=\"https:\/\/daemar.com\/fr\/wp-content\/uploads\/sites\/3\/2013\/10\/dmr-shaft-dynamic-runout.jpg\" alt=\"DMR_Dynamic_runout01\" width=\"462\" height=\"217\" srcset=\"https:\/\/daemar.com\/fr\/wp-content\/uploads\/sites\/3\/2013\/10\/dmr-shaft-dynamic-runout.jpg 1619w, https:\/\/daemar.com\/fr\/wp-content\/uploads\/sites\/3\/2013\/10\/dmr-shaft-dynamic-runout-300x141.jpg 300w, https:\/\/daemar.com\/fr\/wp-content\/uploads\/sites\/3\/2013\/10\/dmr-shaft-dynamic-runout-1024x481.jpg 1024w, https:\/\/daemar.com\/fr\/wp-content\/uploads\/sites\/3\/2013\/10\/dmr-shaft-dynamic-runout-400x188.jpg 400w\" sizes=\"auto, (max-width: 462px) 100vw, 462px\" \/><\/a><\/div>\n<\/div>\n<div class=\"row-fluid\">\n<div class=\"rhcol span12\">\n<h3>Shaft Eccentricity Limits<\/h3>\n<p><a href=\"https:\/\/daemar.com\/fr\/wp-content\/uploads\/sites\/3\/2013\/10\/dmr-shaft-eccentricity-limits.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-4265\" src=\"https:\/\/daemar.com\/fr\/wp-content\/uploads\/sites\/3\/2013\/10\/dmr-shaft-eccentricity-limits.jpg\" alt=\"DMR_ShaftEccentricityLimits_01\" width=\"469\" height=\"249\" srcset=\"https:\/\/daemar.com\/fr\/wp-content\/uploads\/sites\/3\/2013\/10\/dmr-shaft-eccentricity-limits.jpg 1447w, https:\/\/daemar.com\/fr\/wp-content\/uploads\/sites\/3\/2013\/10\/dmr-shaft-eccentricity-limits-300x159.jpg 300w, https:\/\/daemar.com\/fr\/wp-content\/uploads\/sites\/3\/2013\/10\/dmr-shaft-eccentricity-limits-1024x544.jpg 1024w, https:\/\/daemar.com\/fr\/wp-content\/uploads\/sites\/3\/2013\/10\/dmr-shaft-eccentricity-limits-400x212.jpg 400w\" sizes=\"auto, (max-width: 469px) 100vw, 469px\" \/><\/a><\/p>\n<\/div>\n<\/div>\n<h3><\/h3>\n<\/div>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Home &gt;&gt; Shaft Seals &gt;&gt; Oil Seals &gt;&gt; Design of the Shaft Design of the Shaft The Design of the Shaft Proper application design assures [&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":[194,75,195,199,198,196,197],"class_list":["post-4110","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-seal","category-shaft-seals","tag-design-of-the-shaft","tag-seals","tag-shaft-design-for-seal","tag-shaft-finish","tag-shaft-material","tag-shaft-seals-2","tag-shaft-tolerance"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Design of the Shaft - 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=\"Proper application design of the shaft assures proper sealing performance. 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