{"id":1505,"date":"2025-06-04T10:23:40","date_gmt":"2025-06-04T02:23:40","guid":{"rendered":"https:\/\/hengoseal.com\/?p=1505"},"modified":"2025-06-04T10:23:40","modified_gmt":"2025-06-04T02:23:40","slug":"rear-axle-seal-selection-guide","status":"publish","type":"post","link":"https:\/\/hengoseal.com\/ja\/rear-axle-seal-selection-guide\/","title":{"rendered":"How to Choose the Right Seal for Rear Axle Leaks in 2025?"},"content":{"rendered":"<p>Dealing with a <strong>rear axle leak<\/strong> can be frustrating, especially when you&#8217;re unsure which seal to choose. Pick the wrong one, and you&#8217;ll face another leak in months.<\/p>\n<p>To fix a rear axle leak properly, you must select a seal that matches your axle type, shaft diameter, and operating conditions. Material and lip design also matter for longevity and performance.<\/p>\n<p><img decoding=\"async\" src=\"http:\/\/hengoseal.com\/wp-content\/uploads\/2025\/06\/1748574736549-1.png\" alt=\"placeholder_image\" \/><\/p>\n<p>The right axle seal saves you from recurring leaks, costly downtime, and frustrated customers or drivers. Let\u2019s explore how to make the right choice with confidence.<\/p>\n<h2>What are the symptoms of a rear axle seal leak?<\/h2>\n<p>You might first notice oil on your garage floor, or maybe hear a humming noise from the rear.<\/p>\n<p>Rear axle seal leaks typically show signs like fluid around the wheel hub, burning smells, differential noise, or rear brake contamination\u2014especially in drum brake systems.<\/p>\n<p><img decoding=\"async\" src=\"http:\/\/hengoseal.com\/wp-content\/uploads\/2025\/06\/1748574977774.png\" alt=\"placeholder_image\" \/><\/p>\n<h3>How do I know if my rear axle seal is leaking?<\/h3>\n<table>\n<thead>\n<tr>\n<th>\u75c7\u72b6<\/th>\n<th>\u305d\u308c\u304c\u610f\u5473\u3059\u308b\u3082\u306e<\/th>\n<th>Urgency<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Oil around tire or drum<\/td>\n<td>Seal is leaking<\/td>\n<td>\u9ad8\u3044<\/td>\n<\/tr>\n<tr>\n<td>Grinding noise when driving<\/td>\n<td>Fluid is low or gone<\/td>\n<td>Emergency<\/td>\n<\/tr>\n<tr>\n<td>Stains near rear hub<\/td>\n<td>Initial leak forming<\/td>\n<td>\u4e2d\u304f\u3089\u3044<\/td>\n<\/tr>\n<tr>\n<td>Burning smell near rear axle<\/td>\n<td>Oil hitting hot brake<\/td>\n<td>\u9ad8\u3044<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>One of our Southeast Asian customers reported 3 axle failures in a month\u2014until switching to <a href=\"https:\/\/hengoseal.com\/ja\/product\/high-quality-oil-seal\/\" target=\"_blank\">\u9ad8\u54c1\u8cea\u306e\u30aa\u30a4\u30eb\u30b7\u30fc\u30eb<\/a> with dual-lip protection.<\/p>\n<h2>Why is choosing the right axle seal important?<\/h2>\n<p>Not all axle seals are equal. Wrong fitment, wrong material, or poor lip design = leak again soon.<\/p>\n<p>Axle seals protect your differential oil from escaping and block dust or water from entering. The right seal reduces friction, heat, and long-term failure.<\/p>\n<p><img decoding=\"async\" src=\"http:\/\/hengoseal.com\/wp-content\/uploads\/2025\/06\/1748574845178-1.png\" alt=\"placeholder_image\" \/><\/p>\n<h3>What happens if I choose the wrong rear axle seal?<\/h3>\n<table>\n<thead>\n<tr>\n<th>Problem<\/th>\n<th>\u539f\u56e0<\/th>\n<th>Result<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Wrong shaft size<\/td>\n<td>Loose or tight fit<\/td>\n<td>Immediate leak or wear<\/td>\n<\/tr>\n<tr>\n<td>\u9593\u9055\u3063\u305f\u7d20\u6750<\/td>\n<td>Not heat\/oil resistant<\/td>\n<td>Early failure<\/td>\n<\/tr>\n<tr>\n<td>Incorrect lip design<\/td>\n<td>Lacks dust\/oil seal<\/td>\n<td>\u6c5a\u67d3<\/td>\n<\/tr>\n<tr>\n<td>No OEM match<\/td>\n<td>Tolerance mismatch<\/td>\n<td>\u4e0d\u9069\u5207\u306a\u5ea7\u5e2d<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>We always advise checking the OEM number or using our <a href=\"https:\/\/hengoseal.com\/ja\/oil-seal-cross-reference-chart\/\" target=\"_blank\">oil seal cross-reference chart<\/a> to avoid mismatch.<\/p>\n<h2>What materials are best for rear axle seals?<\/h2>\n<p>Material choice is vital, especially for commercial or off-road vehicles. NBR works fine for daily use, while FKM is ideal for heat, pressure, and longevity.<\/p>\n<p>Silicone is more flexible but less abrasion-resistant, and PTFE offers chemical resistance for specialized environments.<\/p>\n<p><img decoding=\"async\" src=\"http:\/\/hengoseal.com\/wp-content\/uploads\/2025\/06\/1748574876622-1.png\" alt=\"placeholder_image\" \/><\/p>\n<h3>Which seal materials should I consider for rear axle applications?<\/h3>\n<table>\n<thead>\n<tr>\n<th>\u6750\u6599<\/th>\n<th>\u4f7f\u7528\u4e8b\u4f8b<\/th>\n<th>Pros<\/th>\n<th>Cons<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u30ce\u30f3\u30d6\u30eb<\/td>\n<td>Standard vehicles<\/td>\n<td>Low cost, oil-resistant<\/td>\n<td>Not high-temp<\/td>\n<\/tr>\n<tr>\n<td>\u30d5\u30c3\u5316\u6c34\u7d20<\/td>\n<td>Heavy-duty, heat<\/td>\n<td>Long life, high temp<\/td>\n<td>Higher price<\/td>\n<\/tr>\n<tr>\n<td>\u30b7\u30ea\u30b3\u30fc\u30f3<\/td>\n<td>Food grade, soft<\/td>\n<td>Flexible, non-toxic<\/td>\n<td>Weak under abrasion<\/td>\n<\/tr>\n<tr>\n<td>PTFE<\/td>\n<td>Chemicals, pressure<\/td>\n<td>Excellent resistance<\/td>\n<td>Requires special fitment<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u79c1\u305f\u3061\u306f\u63d0\u4f9b\u3059\u308b <a href=\"https:\/\/hengoseal.com\/ja\/product\/fkm-o-ring\/\" target=\"_blank\">FKM O\u30ea\u30f3\u30b0<\/a> and oil seals tailored for rear axle loads, ensuring durability even in mining trucks or long-haul fleets.<\/p>\n<h2>How to select the right seal size and design for your axle?<\/h2>\n<p>Always measure shaft and bore diameters with calipers. Consider lip type: single lip for basic sealing, double lip for dust\/oil protection, and triple lip for rugged terrains.<\/p>\n<p>We recommend using OEM reference numbers or working with a supplier like Hengoseal for matching.<\/p>\n<p><img decoding=\"async\" src=\"http:\/\/hengoseal.com\/wp-content\/uploads\/2025\/06\/1748574671991-1.png\" alt=\"placeholder_image\" \/><\/p>\n<h3>What\u2019s the correct way to choose axle seal size and lip style?<\/h3>\n<table>\n<thead>\n<tr>\n<th>\u30d1\u30e9\u30e1\u30fc\u30bf<\/th>\n<th>\u30d2\u30f3\u30c8<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Shaft diameter<\/td>\n<td>Use vernier caliper<\/td>\n<\/tr>\n<tr>\n<td>Bore\/housing size<\/td>\n<td>Check service manual<\/td>\n<\/tr>\n<tr>\n<td>OEM\u90e8\u54c1\u756a\u53f7<\/td>\n<td>Cross-check databases<\/td>\n<\/tr>\n<tr>\n<td>Lip design<\/td>\n<td>Choose based on contamination level<\/td>\n<\/tr>\n<tr>\n<td>Installation depth<\/td>\n<td>Match original seal specs<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Many clients trust our <a href=\"https:\/\/hengoseal.com\/ja\/custom-size-oil-seals\/\" target=\"_blank\">custom-sized oil seals<\/a> when OEM parts are discontinued or hard to find.<\/p>\n<h2>Can I upgrade my existing rear axle seals?<\/h2>\n<p>Absolutely. You can switch from standard NBR single-lip to FKM double-lip or even PTFE for long-lasting performance.<\/p>\n<p>This is especially useful in regions with dust, high heat, or long-haul operations.<\/p>\n<h3>When should I consider upgrading rear axle seals?<\/h3>\n<table>\n<thead>\n<tr>\n<th>\u30b7\u30ca\u30ea\u30aa<\/th>\n<th>\u304a\u3059\u3059\u3081<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Frequent seal failures<\/td>\n<td>Upgrade to dual-lip<\/td>\n<\/tr>\n<tr>\n<td>Harsh terrain (dust\/mud)<\/td>\n<td>Use triple-lip seals<\/td>\n<\/tr>\n<tr>\n<td>Heat exposure<\/td>\n<td>Choose FKM or PTFE<\/td>\n<\/tr>\n<tr>\n<td>Oil breakdown noticed<\/td>\n<td>Replace fluid &amp; upgrade seal<\/td>\n<\/tr>\n<tr>\n<td>Supply chain issues<\/td>\n<td><a href=\"https:\/\/hengoseal.com\/ja\/custom-solutions\/\" target=\"_blank\">Use custom seals<\/a> \u30d8\u30f3\u30b4\u30b7\u30fc\u30eb\u3088\u308a<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>OEM seal upgrades helped a logistics fleet in Eastern Europe reduce leak-related downtime by 47% in one year.<\/p>\n<h2>\u7d50\u8ad6<\/h2>\n<p>Rear axle leaks are more than just messy\u2014they\u2019re a risk to vehicle safety and operation. The right seal makes all the difference in cost, durability, and peace of mind.<\/p>\n<h2>Seal your axle problems for good\u2014get high-performance seals from Hengoseal<\/h2>\n<p>Our oil seals are built for pressure, precision, and performance. OEM quality, fast shipping, and full customization for B2B needs.<br \/>\n\ud83d\udce7 \u30e1\u30fc\u30eb: info@hengoseal.com<br \/>\n\ud83d\udcf2 WhatsApp: +86 17622979498<\/p>\n<h2>Related topic<\/h2>\n<p><a href=\"https:\/\/hengoseal.com\/ja\/oil-seal-leak-repair\/\" target=\"_blank\">\u30aa\u30a4\u30eb\u30b7\u30fc\u30eb\u306e\u6f0f\u308c\uff1a\u539f\u56e0\u3001\u75c7\u72b6\u3001\u4fee\u5fa9\u65b9\u6cd5<\/a><br \/>\n<a href=\"https:\/\/hengoseal.com\/ja\/product\/tg4-oil-seal-double-lip\/\" target=\"_blank\">TG4 Skeleton Oil Seal | Double Lip Shaft Seal in NBR &amp; FKM<\/a><br \/>\n<a href=\"https:\/\/hengoseal.com\/ja\/product\/high-quality-oil-seal\/\" target=\"_blank\">High-Quality Oil Seal | Precision Hydraulic Shaft Seal<\/a><\/p>\n<style>\n.faq-question {\ncursor: pointer;\nfont-weight: bold;\npadding: 10px;\nbackground-color: #f1f1f1;\nborder: 1px solid #ddd;\nmargin-bottom: 5px;\ncolor: #0073aa;\n}\n.faq-answer {\ndisplay: none;\npadding: 10px;\nborder-left: 3px solid #0073aa;\nbackground-color: #f9f9f9;\nmargin-bottom: 10px;\n}\n<\/style>\n<p><script>\ndocument.addEventListener('DOMContentLoaded', function() {\nconst questions = document.querySelectorAll('.faq-question');\nquestions.forEach(question => {\nquestion.addEventListener('click', function() {\nconst answer = this.nextElementSibling;\nanswer.style.display = answer.style.display === 'block' ? 'none' : 'block';\n});\n});\n});\n<\/script><br \/>\n<!-- JSON-LD FAQ Schema --><br \/>\n<script type=\"application\/ld+json\">\n{\n\"@context\": \"https:\/\/schema.org\",\n\"@type\": \"FAQPage\",\n\"mainEntity\": [\n{\n\"@type\": \"Question\",\n\"name\": \"What size axle seal do I need for my truck?\",\n\"acceptedAnswer\": {\n\"@type\": \"Answer\",\n\"text\": \"Check your OEM part number or measure shaft and bore directly using a caliper.\"\n}\n},\n{\n\"@type\": \"Question\",\n\"name\": \"Can I use silicone grease on the seal during installation?\",\n\"acceptedAnswer\": {\n\"@type\": \"Answer\",\n\"text\": \"Yes. Light silicone grease eases installation and protects the seal lip from initial friction.\"\n}\n},\n{\n\"@type\": \"Question\",\n\"name\": \"Should both axle seals be replaced at the same time?\",\n\"acceptedAnswer\": {\n\"@type\": \"Answer\",\n\"text\": \"Recommended. If one leaks, the other is likely worn too.\"\n}\n},\n{\n\"@type\": \"Question\",\n\"name\": \"How do I avoid damaging the seal during install?\",\n\"acceptedAnswer\": {\n\"@type\": \"Answer\",\n\"text\": \"Use a seal driver tool, never hammer directly. Apply even pressure around the housing.\"\n}\n},\n{\n\"@type\": \"Question\",\n\"name\": \"How long should a rear axle seal last?\",\n\"acceptedAnswer\": {\n\"@type\": \"Answer\",\n\"text\": \"With the right material, expect 50,000 to 100,000 km under normal conditions.\"\n}\n},\n{\n\"@type\": \"Question\",\n\"name\": \"Are rear axle seals reusable?\",\n\"acceptedAnswer\": {\n\"@type\": \"Answer\",\n\"text\": \"No. Once removed, a seal should always be replaced.\"\n}\n},\n{\n\"@type\": \"Question\",\n\"name\": \"Can I find universal seals for multiple axle types?\",\n\"acceptedAnswer\": {\n\"@type\": \"Answer\",\n\"text\": \"Some crossover sizes exist, but precise OEM-matched seals are always best.\"\n}\n},\n{\n\"@type\": \"Question\",\n\"name\": \"Does Hengoseal provide heavy-duty seals for commercial fleets?\",\n\"acceptedAnswer\": {\n\"@type\": \"Answer\",\n\"text\": \"Yes. We offer <a href=\\\"https:\/\/hengoseal.com\/product\/howo-rear-wheel-double-combination-oil-seal-190x220x30\/\\\" target=\\\"_blank\\\">high-load oil seals for trucks, mining vehicles, and agricultural machinery.\"\n}\n}\n]\n}\n<\/script><\/p>\n<h2>\u3088\u304f\u3042\u308b\u8cea\u554f<\/h2>\n<div class=\"faq-container\">\n<div class=\"faq-question\">1. What size axle seal do I need for my truck?<\/div>\n<div class=\"faq-answer\">Check your OEM part number or measure shaft and bore directly using a caliper.<\/div>\n<\/div>\n<div class=\"faq-container\">\n<div class=\"faq-question\">2. Can I use silicone grease on the seal during installation?<\/div>\n<div class=\"faq-answer\">Yes. Light silicone grease eases installation and protects the seal lip from initial friction.<\/div>\n<\/div>\n<div class=\"faq-container\">\n<div class=\"faq-question\">3. Should both axle seals be replaced at the same time?<\/div>\n<div class=\"faq-answer\">Recommended. If one leaks, the other is likely worn too.<\/div>\n<\/div>\n<div class=\"faq-container\">\n<div class=\"faq-question\">4. How do I avoid damaging the seal during install?<\/div>\n<div class=\"faq-answer\">Use a seal driver tool, never hammer directly. Apply even pressure around the housing.<\/div>\n<\/div>\n<div class=\"faq-container\">\n<div class=\"faq-question\">5. How long should a rear axle seal last?<\/div>\n<div class=\"faq-answer\">With the right material, expect 50,000 to 100,000 km under normal conditions.<\/div>\n<\/div>\n<div class=\"faq-container\">\n<div class=\"faq-question\">6. Are rear axle seals reusable?<\/div>\n<div class=\"faq-answer\">No. Once removed, a seal should always be replaced.<\/div>\n<\/div>\n<div class=\"faq-container\">\n<div class=\"faq-question\">7. Can I find universal seals for multiple axle types?<\/div>\n<div class=\"faq-answer\">Some crossover sizes exist, but precise OEM-matched seals are always best.<\/div>\n<\/div>\n<div class=\"faq-container\">\n<div class=\"faq-question\">8. Does Hengoseal provide heavy-duty seals for commercial fleets?<\/div>\n<div class=\"faq-answer\">Yes. We offer <a href=\"https:\/\/hengoseal.com\/ja\/product\/howo-rear-wheel-double-combination-oil-seal-190x220x30\/\" target=\"_blank\">high-load oil seals<\/a> for trucks, mining vehicles, and agricultural machinery.<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Dealing with a rear axle leak can be frustrating, especially when you&#8217;re unsure which seal to choose. Pick the wrong [&hellip;]<\/p>","protected":false},"author":1,"featured_media":1506,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","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":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-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":"","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-4)","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-4)","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-4)","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":[32,54],"tags":[],"class_list":["post-1505","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-oil-seal","category-selection-guide"],"_links":{"self":[{"href":"https:\/\/hengoseal.com\/ja\/wp-json\/wp\/v2\/posts\/1505","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hengoseal.com\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hengoseal.com\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hengoseal.com\/ja\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/hengoseal.com\/ja\/wp-json\/wp\/v2\/comments?post=1505"}],"version-history":[{"count":0,"href":"https:\/\/hengoseal.com\/ja\/wp-json\/wp\/v2\/posts\/1505\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hengoseal.com\/ja\/wp-json\/wp\/v2\/media\/1506"}],"wp:attachment":[{"href":"https:\/\/hengoseal.com\/ja\/wp-json\/wp\/v2\/media?parent=1505"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hengoseal.com\/ja\/wp-json\/wp\/v2\/categories?post=1505"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hengoseal.com\/ja\/wp-json\/wp\/v2\/tags?post=1505"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}