{"id":1892,"date":"2026-02-14T05:08:08","date_gmt":"2026-02-14T05:08:08","guid":{"rendered":"https:\/\/www.wonzh.com\/?p=1892"},"modified":"2026-02-14T05:08:12","modified_gmt":"2026-02-14T05:08:12","slug":"single-lip-vs-double-lip-seals-contamination-protection-and-pressure-handling","status":"publish","type":"post","link":"https:\/\/www.wonzh.com\/ja\/single-lip-vs-double-lip-seals-contamination-protection-and-pressure-handling\/","title":{"rendered":"\u30b7\u30f3\u30b0\u30eb\u30ea\u30c3\u30d7\u3068\u30c0\u30d6\u30eb\u30ea\u30c3\u30d7\u306e\u6bd4\u8f03\uff1a\u6c5a\u67d3\u9632\u6b62\u3068\u5727\u529b\u51e6\u7406"},"content":{"rendered":"<p>\u7523\u696d\u6a5f\u68b0\u3067\u306f\u3001\u6b63\u3057\u3044\u30b7\u30fc\u30ea\u30f3\u30b0\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u3092\u9078\u629e\u3059\u308b\u3053\u3068\u304c\u3001\u6a5f\u5668\u306e\u4fe1\u983c\u6027\u3001\u6f0f\u308c\u306e\u9632\u6b62\u3001\u6c5a\u67d3\u9632\u6b62\u306b\u76f4\u63a5\u5f71\u97ff\u3057\u307e\u3059\u3002\u5e83\u304f\u4f7f\u308f\u308c\u3066\u3044\u308b\u30e9\u30b8\u30a2\u30eb\u30b7\u30fc\u30eb\u306b\u306f\u3001\u6b21\u306e2\u3064\u306e\u8a2d\u8a08\u304c\u3042\u308a\u307e\u3059\u3002 <strong>\u30b7\u30f3\u30b0\u30eb\u30ea\u30c3\u30d7\u30b7\u30fc\u30eb<\/strong> \u305d\u3057\u3066 <strong>\u30c0\u30d6\u30eb\u30ea\u30c3\u30d7 <a href=\"https:\/\/www.wonzh.com\/ja\/product-category\/sealing-parts-sealing-systems\/\"><mark style=\"background-color:rgba(0, 0, 0, 0);color:#fcb900\" class=\"has-inline-color\">\u30b7\u30fc\u30eb<\/mark><\/a><\/strong>. 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src=\"https:\/\/www.wonzh.com\/wp-content\/uploads\/2026\/02\/Single-Lip-vs-Double-Lip-Seals-Contamination-Protection-and-Pressure-Handling-1024x683.png\" alt=\"\" class=\"wp-image-1893\" srcset=\"https:\/\/www.wonzh.com\/wp-content\/uploads\/2026\/02\/Single-Lip-vs-Double-Lip-Seals-Contamination-Protection-and-Pressure-Handling-1024x683.png 1024w, https:\/\/www.wonzh.com\/wp-content\/uploads\/2026\/02\/Single-Lip-vs-Double-Lip-Seals-Contamination-Protection-and-Pressure-Handling-300x200.png 300w, https:\/\/www.wonzh.com\/wp-content\/uploads\/2026\/02\/Single-Lip-vs-Double-Lip-Seals-Contamination-Protection-and-Pressure-Handling-768x512.png 768w, https:\/\/www.wonzh.com\/wp-content\/uploads\/2026\/02\/Single-Lip-vs-Double-Lip-Seals-Contamination-Protection-and-Pressure-Handling-18x12.png 18w, https:\/\/www.wonzh.com\/wp-content\/uploads\/2026\/02\/Single-Lip-vs-Double-Lip-Seals-Contamination-Protection-and-Pressure-Handling-600x400.png 600w, https:\/\/www.wonzh.com\/wp-content\/uploads\/2026\/02\/Single-Lip-vs-Double-Lip-Seals-Contamination-Protection-and-Pressure-Handling.png 1536w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">1.\u69cb\u9020\u306e\u9055\u3044<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u30b7\u30f3\u30b0\u30eb\u30ea\u30c3\u30d7\u30b7\u30fc\u30eb<\/h3>\n\n\n\n<p>\u30b7\u30f3\u30b0\u30eb\u30ea\u30c3\u30d7\u30b7\u30fc\u30eb\u306f\u3001\u30b7\u30e3\u30d5\u30c8\u307e\u305f\u306f\u30ed\u30c3\u30c9\u306e\u8868\u9762\u306b\u63a5\u89e6\u3059\u308b\u4e00\u6b21\u30b7\u30fc\u30eb\u30a8\u30c3\u30b8\u3092\u5099\u3048\u3066\u3044\u307e\u3059\u3002\u4e3b\u306b\u4ee5\u4e0b\u306e\u76ee\u7684\u3067\u8a2d\u8a08\u3055\u308c\u3066\u3044\u307e\u3059\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6f64\u6ed1\u6cb9\u306e\u4fdd\u6301<\/li>\n\n\n\n<li>\u5185\u90e8\u306e\u6db2\u6f0f\u308c\u3092\u9632\u3050<\/li>\n\n\n\n<li>\u4f4e\u6469\u64e6\u3067\u52d5\u4f5c<\/li>\n<\/ul>\n\n\n\n<p>\u30b7\u30f3\u30b0\u30eb\u30ea\u30c3\u30d7\u8a2d\u8a08\u306f\u3088\u308a\u30b7\u30f3\u30d7\u30eb\u3067\u3001\u767a\u71b1\u304c\u5c11\u306a\u304f\u3001\u30af\u30ea\u30fc\u30f3\u306a\u904b\u8ee2\u6761\u4ef6\u306b\u9069\u3057\u3066\u3044\u308b\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u30c0\u30d6\u30eb\u30ea\u30c3\u30d7\u30b7\u30fc\u30eb<\/h3>\n\n\n\n<p>\u30c0\u30d6\u30eb\u30ea\u30c3\u30d7\u30b7\u30fc\u30eb\u304c\u7d44\u307f\u8fbc\u307e\u308c\u3066\u3044\u308b\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4e00\u6b21\u30b7\u30fc\u30eb\u30ea\u30c3\u30d7\uff08\u6db2\u4f53\u4fdd\u6301\u7528\uff091\u500b<\/li>\n\n\n\n<li>2\u6b21\u30ea\u30c3\u30d71\u672c\uff08\u30b3\u30f3\u30bf\u30df\u30cd\u30fc\u30b7\u30e7\u30f3\u9664\u53bb\u7528\uff09<\/li>\n<\/ul>\n\n\n\n<p>\u30ea\u30c3\u30d7\u304c\u8ffd\u52a0\u3055\u308c\u305f\u3053\u3068\u3067\u3001\u7279\u306b\u307b\u3053\u308a\u3084\u6c5a\u308c\u306e\u591a\u3044\u74b0\u5883\u3067\u306e\u74b0\u5883\u4fdd\u8b77\u304c\u5f37\u5316\u3055\u308c\u305f\u3002.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">2.\u6c5a\u67d3\u4fdd\u8b77<\/h2>\n\n\n\n<p>\u6c5a\u67d3\u306f\u30b7\u30fc\u30eb\u3068\u30d9\u30a2\u30ea\u30f3\u30b0\u306e\u6545\u969c\u306e\u4e3b\u306a\u539f\u56e0\u3067\u3042\u308b\u3002\u30b7\u30f3\u30b0\u30eb\u30ea\u30c3\u30d7\u3068\u30c0\u30d6\u30eb\u30ea\u30c3\u30d7\u306e\u3069\u3061\u3089\u3092\u9078\u629e\u3059\u308b\u304b\u306f\u3001\u74b0\u5883\u66b4\u9732\u306b\u5927\u304d\u304f\u5de6\u53f3\u3055\u308c\u307e\u3059\u3002.<\/p>\n\n\n\n<p><strong>\u30b7\u30f3\u30b0\u30eb\u30ea\u30c3\u30d7\u30b7\u30fc\u30eb\uff1a<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30af\u30ea\u30fc\u30f3\u306a\u5ba4\u5185\u74b0\u5883\u306b\u9069\u3057\u3066\u3044\u308b<\/li>\n\n\n\n<li>\u5916\u90e8\u6c5a\u67d3\u3078\u306e\u8010\u6027\u306f\u9650\u5b9a\u7684<\/li>\n\n\n\n<li>\u5358\u4e00\u306e\u63a5\u89e6\u9762\u306b\u3088\u308b\u4f4e\u6469\u64e6<\/li>\n<\/ul>\n\n\n\n<p><strong>\u30c0\u30d6\u30eb\u30ea\u30c3\u30d7\u30b7\u30fc\u30eb\uff1a<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u307b\u3053\u308a\u3001\u6c5a\u308c\u3001\u6e7f\u6c17\u304b\u3089\u306e\u4fdd\u8b77<\/li>\n\n\n\n<li>\u5efa\u8a2d\u6a5f\u68b0\u3001\u9271\u5c71\u6a5f\u68b0\u3001\u8fb2\u696d\u6a5f\u68b0\u306b\u6700\u9069<\/li>\n\n\n\n<li>\u4e8c\u6b21\u30ea\u30c3\u30d7\u304c\u7814\u78e8\u7c92\u5b50\u306b\u5bfe\u3059\u308b\u30d0\u30ea\u30a2\u3068\u3057\u3066\u50cd\u304f<\/li>\n<\/ul>\n\n\n\n<p>\u904e\u9177\u306a\u74b0\u5883\u306b\u304a\u3044\u3066\u3001\u30c0\u30d6\u30eb\u30ea\u30c3\u30d7\u30b7\u30fc\u30eb\u306f\u30b3\u30f3\u30bf\u30df\u30cd\u30fc\u30b7\u30e7\u30f3\u306e\u4fb5\u5165\u3092\u5927\u5e45\u306b\u6e1b\u3089\u3057\u3001\u90e8\u54c1\u306e\u5bff\u547d\u3092\u5ef6\u3070\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">3.\u5727\u529b\u51e6\u7406\u80fd\u529b<\/h2>\n\n\n\n<p>\u5727\u529b\u4e0b\u3067\u306e\u30b7\u30fc\u30eb\u6027\u80fd\u306f\u3001\u8a2d\u8a08\u3084\u7528\u9014\u306b\u3088\u3063\u3066\u7570\u306a\u308b\u3002.<\/p>\n\n\n\n<p><strong>\u30b7\u30f3\u30b0\u30eb\u30fb\u30ea\u30c3\u30d7\u30fb\u30b7\u30fc\u30eb<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u901a\u5e38\u3001\u4f4e\u5727\u7528\u9014\u306b\u8a2d\u8a08\u3055\u308c\u3066\u3044\u308b<\/li>\n\n\n\n<li>\u30b0\u30ea\u30fc\u30b9\u4fdd\u6301\u304a\u3088\u3073\u30e9\u30a4\u30c8\u30c7\u30e5\u30fc\u30c6\u30a3\u30fc\u30b7\u30e3\u30d5\u30c8\u30b7\u30b9\u30c6\u30e0\u306b\u4e00\u822c\u7684<\/li>\n\n\n\n<li>\u30b5\u30dd\u30fc\u30c8\u30ea\u30f3\u30b0\u306e\u306a\u3044\u9ad8\u5727\u6cb9\u5727\u30b7\u30b9\u30c6\u30e0\u306b\u306f\u4e0d\u5411\u304d<\/li>\n<\/ul>\n\n\n\n<p><strong>\u30c0\u30d6\u30eb\u30fb\u30ea\u30c3\u30d7\u30fb\u30b7\u30fc\u30eb\uff1a<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u307e\u305f\u3001\u4e3b\u306b\u4f4e\u5727\u30ed\u30fc\u30bf\u30ea\u30fc\u30fb\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u4f7f\u7528\u3055\u308c\u308b\u3002<\/li>\n\n\n\n<li>\u30bb\u30ab\u30f3\u30c0\u30ea\u30fc\u30fb\u30ea\u30c3\u30d7\u306f\u5727\u529b\u4fdd\u6301\u7528\u3067\u306f\u306a\u3044<\/li>\n\n\n\n<li>\u9ad8\u5727\u74b0\u5883\u3067\u306f\u3001\u7279\u6b8a\u306a\u6cb9\u5727\u30b7\u30fc\u30eb\u307e\u305f\u306f\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u30ea\u30f3\u30b0\u304c\u5fc5\u8981\u3067\u3059\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u6a19\u6e96\u7684\u306a\u30ea\u30c3\u30d7\u30b7\u30fc\u30eb\u306f\u3001\u5c02\u7528\u306e\u9ad8\u5727\u6cb9\u5727\u30b7\u30fc\u30eb\u30b7\u30b9\u30c6\u30e0\u306e\u4ee3\u7528\u54c1\u3067\u306f\u306a\u3044\u3053\u3068\u306b\u6ce8\u610f\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3042\u308b\u3002.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">4.\u6469\u64e6\u3068\u767a\u71b1<\/h2>\n\n\n\n<p>\u6469\u64e6\u306f\u30a8\u30cd\u30eb\u30ae\u30fc\u52b9\u7387\u3068\u6469\u8017\u7387\u306b\u5f71\u97ff\u3059\u308b\u3002.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30b7\u30f3\u30b0\u30eb\u30ea\u30c3\u30d7\u30b7\u30fc\u30eb\u306f\u6469\u64e6\u304c\u5c11\u306a\u304f\u3001\u71b1\u3082\u5c11\u306a\u3044\u3002.<\/li>\n\n\n\n<li>\u30c0\u30d6\u30eb\u30ea\u30c3\u30d7\u30b7\u30fc\u30eb\u306f\u63a5\u89e6\u9762\u7a4d\u3092\u5897\u3084\u3057\u3001\u6469\u64e6\u3092\u308f\u305a\u304b\u306b\u5897\u52a0\u3055\u305b\u308b\u3002.<\/li>\n\n\n\n<li>\u9069\u5207\u306a\u6f64\u6ed1\u304c\u884c\u308f\u308c\u306a\u3044\u3068\u3001\u904e\u5ea6\u306e\u6469\u64e6\u304c\u30b7\u30e3\u30d5\u30c8\u306e\u6469\u8017\u3084\u30b7\u30fc\u30eb\u306e\u65e9\u671f\u52a3\u5316\u306b\u3064\u306a\u304c\u308a\u307e\u3059\u3002.<\/li>\n<\/ul>\n\n\n\n<p>\u9ad8\u901f\u7528\u9014\u3067\u306f\u3001\u6469\u64e6\u3092\u6700\u5c0f\u5316\u3059\u308b\u305f\u3081\u306b\u30b7\u30f3\u30b0\u30eb\u30ea\u30c3\u30d7\u69cb\u6210\u304c\u6709\u5229\u306b\u306a\u308b\u5834\u5408\u304c\u3042\u308b\u3002.<\/p>\n\n\n\n<h2 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industrial machinery, selecting the correct sealing solution directly impacts equipment reliability, leakage control, and contamination protection. Two widely used radial sealing designs are single lip seals and double lip seals. While both are designed to retain lubrication and exclude contaminants, their structural differences significantly affect performance in pressure and dirty environments. Understanding these differences helps engineers optimize sealing systems for hydraulic, pneumatic, and rotating applications. 1. Structural Differences Single Lip Seal A single lip seal features one primary sealing edge that contacts the shaft or rod surface. It is primarily designed to: Single lip designs are simpler, generate less heat, and are suitable for clean operating conditions. Double Lip [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":1893,"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":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","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":"","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":[26],"tags":[1568,1571,1146,1572,1580,1574,1567,1566,1435,1576,1575,1570,1581,1577,1573,1579,1578,1569,1147],"class_list":["post-1892","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-product-knowledge","tag-bearing-protection-seals","tag-contamination-protection-seals","tag-double-lip-seal","tag-dust-resistant-shaft-seal","tag-fkm-shaft-seal","tag-gearbox-oil-seal-design","tag-heavy-duty-equipment-seals","tag-industrial-oil-seals","tag-industrial-sealing-system-design","tag-low-pressure-rotary-seal","tag-moisture-exclusion-seal","tag-nbr-oil-seal","tag-ptfe-lip-seal","tag-radial-shaft-seal","tag-rotary-equipment-sealing-solutions","tag-seal-material-selection-guide","tag-shaft-seal-friction-control","tag-shaft-surface-finish-requirements","tag-single-lip-seal"],"_links":{"self":[{"href":"https:\/\/www.wonzh.com\/ja\/wp-json\/wp\/v2\/posts\/1892","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.wonzh.com\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.wonzh.com\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.wonzh.com\/ja\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.wonzh.com\/ja\/wp-json\/wp\/v2\/comments?post=1892"}],"version-history":[{"count":1,"href":"https:\/\/www.wonzh.com\/ja\/wp-json\/wp\/v2\/posts\/1892\/revisions"}],"predecessor-version":[{"id":1894,"href":"https:\/\/www.wonzh.com\/ja\/wp-json\/wp\/v2\/posts\/1892\/revisions\/1894"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.wonzh.com\/ja\/wp-json\/wp\/v2\/media\/1893"}],"wp:attachment":[{"href":"https:\/\/www.wonzh.com\/ja\/wp-json\/wp\/v2\/media?parent=1892"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.wonzh.com\/ja\/wp-json\/wp\/v2\/categories?post=1892"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.wonzh.com\/ja\/wp-json\/wp\/v2\/tags?post=1892"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}