{"id":3937,"date":"2026-04-13T10:18:41","date_gmt":"2026-04-13T08:18:41","guid":{"rendered":"https:\/\/fey-lamellenringe.de\/fk-7-dsb\/"},"modified":"2026-08-17T13:25:55","modified_gmt":"2026-08-17T11:25:55","slug":"fk-7-dsb","status":"publish","type":"page","link":"https:\/\/fey-lamellenringe.de\/en\/laminar-rings\/retaining-rings\/fk-7-dsb\/","title":{"rendered":"FK 7 DSB"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"3937\" class=\"elementor elementor-3937 elementor-1242\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-27d010c e-con e-atomic-element e-flexbox-base fey-productpage-hero fey-productpage-hero_fk7 \" data-id=\"27d010c\" data-element_type=\"e-flexbox\" data-e-type=\"e-flexbox\" data-interaction-id=\"27d010c\" data-e-type=\"e-flexbox\" data-id=\"27d010c\">\n    <div class=\"elementor-element elementor-element-13acf7c e-con e-atomic-element e-div-block-base e-13acf7c-256260a \" data-id=\"13acf7c\" data-element_type=\"e-div-block\" data-e-type=\"e-div-block\" data-interaction-id=\"13acf7c\" data-e-type=\"e-div-block\" data-id=\"13acf7c\">\n    \t\t\t<h1 data-interaction-id=\"6b0afd0\" class=\"fey-hero-header e-6b0afd0-64b27b4 e-heading-base\" data-e-type=\"widget\" data-id=\"6b0afd0\"><strong>FK 7 DSB<\/strong><br\/><em>ESB \/ ESW \/ <\/em><br\/><em>DSW \/ DMS<\/em><\/h1>\n\t\t\n<\/div>\n\n<\/div>\n<div class=\"elementor-element elementor-element-3a20ecc e-con e-atomic-element e-div-block-base fey-section-wrapper e-3a20ecc-8a0d992 container-no-padding \" data-id=\"3a20ecc\" data-element_type=\"e-div-block\" data-e-type=\"e-div-block\" data-interaction-id=\"3a20ecc\" data-e-type=\"e-div-block\" data-id=\"3a20ecc\">\n    <div class=\"elementor-element elementor-element-93ee464 e-con e-atomic-element e-div-block-base e-93ee464-da1c55d \" data-id=\"93ee464\" data-element_type=\"e-div-block\" data-e-type=\"e-div-block\" data-interaction-id=\"93ee464\" data-e-type=\"e-div-block\" data-id=\"93ee464\">\n    <div class=\"elementor-element elementor-element-8e869b6 e-con e-atomic-element e-flexbox-base e-8e869b6-9f02688 \" data-id=\"8e869b6\" data-element_type=\"e-flexbox\" data-e-type=\"e-flexbox\" data-interaction-id=\"8e869b6\" data-e-type=\"e-flexbox\" data-id=\"8e869b6\">\n    <div class=\"elementor-element elementor-element-8e37f26 e-con e-atomic-element e-flexbox-base e-8e37f26-f994979 \" data-id=\"8e37f26\" data-element_type=\"e-flexbox\" data-e-type=\"e-flexbox\" data-interaction-id=\"8e37f26\" data-e-type=\"e-flexbox\" data-id=\"8e37f26\">\n    <div class=\"elementor-element elementor-element-ad4a6cb e-con e-atomic-element e-div-block-base \" data-id=\"ad4a6cb\" data-element_type=\"e-div-block\" data-e-type=\"e-div-block\" data-interaction-id=\"ad4a6cb\" data-e-type=\"e-div-block\" data-id=\"ad4a6cb\">\n    \t\t\t<h2 data-interaction-id=\"311d4f5\" class=\"fey-h2 e-311d4f5-d67bfc6 e-heading-base\" data-e-type=\"widget\" data-id=\"311d4f5\">fk 7 DSB<\/h2>\n\t\t\t\t\t<p class=\"fey-body-text fey-product-description-text e-paragraph-base\" data-interaction-id=\"2e7108f\" data-e-type=\"widget\" data-id=\"2e7108f\">Double laminar retaining rings for bores<\/p>\n\t\t\n<\/div>\n<div class=\"elementor-element elementor-element-706f1aa e-con e-atomic-element e-flexbox-base e-706f1aa-1dc795c \" data-id=\"706f1aa\" data-element_type=\"e-flexbox\" data-e-type=\"e-flexbox\" data-interaction-id=\"706f1aa\" data-e-type=\"e-flexbox\" data-id=\"706f1aa\">\n    \t\t\t<p class=\"fey-body-text fey-product-description-text e-74341b8-1883d55 e-paragraph-base\" data-interaction-id=\"74341b8\" data-e-type=\"widget\" data-id=\"74341b8\">FK 7 DSB double retaining ring for bore<\/p>\n\t\t\t\t\t<p class=\"fey-body-text fey-product-description-text e-paragraph-base\" data-interaction-id=\"71f42c3\" data-e-type=\"widget\" data-id=\"71f42c3\">The double wound laminar retaining rings \u201cFK&nbsp;7&nbsp;DSB\u201d for bores and \u201cFK&nbsp;7&nbsp;DSW\u201d for shafts are a valuable addition to the \u201cFK&nbsp;7&nbsp;ESB\u201d and \u201cFK&nbsp;7&nbsp;ESW\u201d single wound laminar retaining rings. The range of applications for double wound laminar retaining rings for bores\/shafts includes practically anywhere where components need to be axially limited, fixed and clamped securely, e.g. in gear manufacturing, in construction and agricultural machinery, for fixing elements in automotive and mechanical engineering, in the roller and plain bearing industry, in shipbuilding and aircraft construction, in conveyor belt systems, winches, pulleys, etc. <\/p>\n\t\t\t\t<div class=\"elementor-element elementor-element-82d566f fey-body-text fey-product-description-text elementor-widget elementor-widget-text-editor\" data-id=\"82d566f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"p1\"><strong>Advantages of the double-wound laminar retaining rings:<\/strong><\/p><ul><li><p class=\"p1\">Roundness of the closed helix over 360\u00b0 ensures firm contact with the groove base and full circumferential closure<\/p><\/li><li>Uniform dynamic weight during rotation<\/li><li>Higher axial load capacity compared to the \u201cFK 7 ESB\u201d and \u201cFK 7 ESW\u201d single wound \u00ad laminar retaining rings<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\n<\/div>\n<div class=\"elementor-element elementor-element-abcd1f5 e-con e-atomic-element e-div-block-base e-abcd1f5-0e3aba3 \" data-id=\"abcd1f5\" data-element_type=\"e-div-block\" data-e-type=\"e-div-block\" data-interaction-id=\"abcd1f5\" data-e-type=\"e-div-block\" data-id=\"abcd1f5\">\n    \t\t<div class=\"elementor-element elementor-element-4d30c15 elementor-align-justify elementor-widget elementor-widget-button\" data-id=\"4d30c15\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/fey-lamellenringe.de\/en\/laminar-rings\/fitting\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-icon\">\n\t\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"53\" height=\"45\" viewBox=\"0 0 53 45\" fill=\"none\"><path d=\"M47.1554 25.8814C47.5355 24.8025 47.8047 23.6826 47.9515 22.5312H35.3409C34.2649 25.9633 30.638 28.4897 26.3271 28.4897C22.016 28.4897 18.3883 25.9633 17.3124 22.5312H4.69965C4.8483 23.6826 5.11719 24.8025 5.49737 25.8814L0 28.6248L4.93934 36.0214L10.4422 33.2757C11.6323 34.3728 12.973 35.346 14.4346 36.1714L12.2597 41.3294L21.5476 44.2505L23.7224 39.0927C24.5765 39.1807 25.4459 39.2265 26.3275 39.2265C27.2073 39.2265 28.0769 39.1807 28.931 39.0927L31.1031 44.2504L40.3919 41.3296L38.2194 36.1713C39.6803 35.3457 41.022 34.3726 42.2112 33.2757L47.714 36.0214L52.6543 28.6245L47.1554 25.8814Z\" fill=\"#252525\"><\/path><path d=\"M30.6959 0H21.9522V11.2531H17.1816L26.3245 22.5315L35.4663 11.2528H30.6959V0Z\" fill=\"#252525\"><\/path><\/svg>\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Fitting<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-224a7fa elementor-align-justify elementor-widget elementor-widget-button\" data-id=\"224a7fa\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/fey-lamellenringe.de\/en\/laminar-rings\/greasing\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-icon\">\n\t\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"59\" height=\"50\" viewBox=\"0 0 59 50\" fill=\"none\"><path d=\"M54.4247 4.00918e-06L50.4995 4.35233e-06C48.0524 4.56626e-06 45.7532 0.95256 44.0232 2.68249L41.2871 5.41862L43.6105 7.74198L46.3477 5.00585C47.4568 3.89672 48.9316 3.28577 50.5006 3.28577L54.4258 3.28577C56.6035 3.20475 56.6014 0.0799309 54.4258 4.00908e-06L54.4247 4.00918e-06Z\" fill=\"black\"><\/path><path d=\"M36.3945 5.17115C35.7562 4.53283 34.7161 4.52626 34.0712 5.17115L32.5 6.74232C32.9336 7.07189 33.3485 7.4332 33.7405 7.82517L41.2055 15.2901C41.5996 15.6843 41.9599 16.0993 42.2872 16.5317L43.8595 14.9595C44.5011 14.3179 44.5011 13.2777 43.8595 12.6361L36.3945 5.17115Z\" fill=\"black\"><\/path><path d=\"M18.9761 30.0544C20.0556 31.134 21.8009 31.1274 22.8739 30.0544C24.3027 28.6256 24.7702 25.9957 24.8775 24.1563C23.0337 24.2668 20.3972 24.7355 18.9771 26.1566C17.891 27.2428 17.9107 28.9891 18.9771 30.0544L18.9761 30.0544Z\" fill=\"black\"><\/path><path d=\"M31.4176 10.1483C28.0224 6.75197 22.5304 6.75854 19.1406 10.1483L0.477101 28.8107C-0.159031 29.4228 -0.159031 30.5221 0.477101 31.1341L17.8957 48.5527C18.5373 49.1943 19.5775 49.1943 20.2191 48.5527L38.8815 29.8892C42.2658 26.5049 42.2658 20.9976 38.8815 17.6122L31.4165 10.1472L31.4176 10.1483ZM25.1965 32.379C22.8567 34.7188 19.0311 34.7582 16.6519 32.379C14.2749 30.0031 14.3089 26.1775 16.6519 23.8345C19.9454 20.541 26.0559 20.8312 26.6297 20.8684C27.4519 20.9221 28.1078 21.5779 28.1614 22.4002C28.1997 22.975 28.4899 29.0856 25.1954 32.379L25.1965 32.379Z\" fill=\"black\"><\/path><path d=\"M56.0811 13.7191C57.6961 13.7191 58.9973 12.3945 58.9973 10.7737C58.9973 8.61296 57.379 6.27335 56.0844 4.80176C54.7876 6.27884 53.166 8.62503 53.166 10.7737C53.166 12.4154 54.4867 13.7202 56.0811 13.7202L56.0811 13.7191Z\" fill=\"black\"><\/path><\/svg>\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Greasing<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\n<\/div>\n\n<\/div>\n<div class=\"elementor-element elementor-element-deda547 e-con e-atomic-element e-flexbox-base e-deda547-22420b3 \" data-id=\"deda547\" data-element_type=\"e-flexbox\" data-e-type=\"e-flexbox\" data-interaction-id=\"deda547\" data-e-type=\"e-flexbox\" data-id=\"deda547\">\n    <div class=\"elementor-element elementor-element-473c13b e-con e-atomic-element e-flexbox-base e-473c13b-ae1252c \" data-id=\"473c13b\" data-element_type=\"e-flexbox\" data-e-type=\"e-flexbox\" data-interaction-id=\"473c13b\" data-e-type=\"e-flexbox\" data-id=\"473c13b\">\n    \t\t\t<h2 data-interaction-id=\"acef025\" class=\"fey-h2 e-acef025-5f8c08f e-heading-base\" data-e-type=\"widget\" data-id=\"acef025\">Ring materials<\/h2>\n\t\t\t\t<div class=\"elementor-element elementor-element-007a772 elementor-widget elementor-widget-text-editor\" data-id=\"007a772\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"fey-responsive-table fey-body-text\">\n        <table>\n            <thead>\n                <tr>\n                    <th>Steel Grade<\/th>\n<th>Spring resistant up to<\/th>\n<th>Hardness Value<\/th>\n<th>Surface Protection<\/th>\n<th>Surface Colour<\/th>\n                <\/tr>\n            <\/thead>\n            <tbody>\n                <tr>\n                    <td>C75<\/td>\n                    <td>max. +300\u00b0C <\/td>\n                    <td>On request<sup>1)<\/sup><\/td>\n                    <td>Oiled<\/td>\n                    <td>Varies <sup>2)<\/sup><\/td>\n                <\/tr>\n                <tr>\n                    <td>C60S<\/td>\n                    <td>max. +300\u00b0C <\/td>\n                    <td>On request<sup>1)<\/sup><\/td>\n                    <td>Oiled<\/td>\n                    <td>Varies <sup>2)<\/sup><\/td>\n                <\/tr>\n                <tr>\n                    <td>51CrV4<\/td>\n                    <td>max. +400\u00b0C <\/td>\n                    <td>On request<sup>1)<\/sup><\/td>\n                    <td>Oiled<\/td>\n                    <td>Varies <sup>2)<\/sup><\/td>\n                <\/tr>\n                <tr>\n                    <td>1.4310<\/td>\n                    <td>max. +450\u00b0C <\/td>\n                    <td>On request<sup>1)<\/sup><\/td>\n                    <td>Bright and dry<\/td>\n                    <td>Varies <sup>2)<\/sup><\/td>\n                <\/tr>\n            <\/tbody>\n        <\/table>\n    <\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<p class=\"fey-body-text e-e86eafb-15bbab0 fey-infobox-text fey-product-description-text e-paragraph-base\" data-interaction-id=\"e86eafb\" data-e-type=\"widget\" data-id=\"e86eafb\"><sub id=\"e-mo79lgqa-ipdqx1w\">1)<\/sub> Varies depending on the type of thermal treatment! Hardness values depending on ring cross-section, measured in Rockwell HRA or HRC.<br\/> <br><sup id=\"e-mo79lgqa-95yd75r\"><sub id=\"e-mo79lgqa-50d9606\">2)<\/sub><\/sup> The surface colour can vary depending on the type of thermal treatment from silber\/bluish to brownish\/black.<\/p>\n\t\t\n<\/div>\n<div class=\"elementor-element elementor-element-d98099c e-grid e-con-full e-con e-parent\" data-id=\"d98099c\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-2946983 e-grid e-con-full e-con e-child\" data-id=\"2946983\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<p class=\"fey-body-text e-45ef5d1-ea20a27 fey-product-description-text e-paragraph-base\" data-interaction-id=\"45ef5d1\" data-e-type=\"widget\" data-id=\"45ef5d1\"><strong id=\"e-mny9n31o-7jh1q8g\">Permissible circumferential speed<\/strong><\/p>\n\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" class=\"e-image-base e-72fd157-5665a28 fey-product-render-image\" data-interaction-id=\"72fd157\" data-e-type=\"widget\" data-id=\"72fd157\" id=\"3777\" src=\"https:\/\/fey-lamellenringe.de\/wp-content\/uploads\/2026\/05\/FK-7-DSB.webp\" width=\"874\" height=\"668\" srcset=\"\" alt=\"\"\/>\t\t\t\t\t<p class=\"fey-body-text fey-product-description-text e-paragraph-base\" data-interaction-id=\"778f22a\" data-e-type=\"widget\" data-id=\"778f22a\"><strong id=\"e-mq7tmsma-5d99193\">Running and assembly tests:<\/strong><br\/>Before our laminar rings are used in series production, running and assembly tests must always be carried out under operating conditions to determine whether the retaining rings can withstand the required stress.<\/p>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-382dc4e e-grid e-con-full e-con e-child\" data-id=\"382dc4e\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<p class=\"fey-body-text e-3470f22-6f9f8d5 fey-product-description-text e-paragraph-base\" data-interaction-id=\"3470f22\" data-e-type=\"widget\" data-id=\"3470f22\"><strong id=\"e-mo79lwaq-v65j959\">Axial load <sup id=\"e-mo79lwaq-rvlkkkl\"><sub id=\"e-mo79lwaq-7nlywmd\">3)<\/sub><\/sup><\/strong><\/p>\n\t\t\t\t\t<img decoding=\"async\" class=\"e-image-base e-b5275e7-08b5085 fey-product-render-image\" data-interaction-id=\"b5275e7\" data-e-type=\"widget\" data-id=\"b5275e7\" id=\"3778\" src=\"https:\/\/fey-lamellenringe.de\/wp-content\/uploads\/2026\/04\/FK-7-DSB-Radial-und-Axialspiel.webp\" width=\"872\" height=\"668\" srcset=\"\" alt=\"\"\/>\t\t\t\t\t<p class=\"fey-body-text fey-product-description-text e-paragraph-base\" data-interaction-id=\"fd6942e\" data-e-type=\"widget\" data-id=\"fd6942e\"><strong id=\"e-mq7tntxd-lhr5e8r\">Axial load <sup id=\"e-mq7tntxd-n1fo9lx\"><sub id=\"e-mq7tntxd-ut1n7lm\">3<\/sub><\/sup>):<\/strong><br\/>In order to determine the axial load capacity of the retaining rings, shear tests must be carried out under operating conditions. If there are uncontrollable axial impacts between the surrounding components and the laminar rings during operation (coupling effect) or extreme vibration of the components, the secure position of the retaining rings in the groove cannot be guaranteed. <\/p>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-ff75ca9 e-grid e-con-full e-con e-child\" data-id=\"ff75ca9\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<p class=\"fey-body-text e-522e48d-311554f fey-product-description-text e-paragraph-base\" data-interaction-id=\"522e48d\" data-e-type=\"widget\" data-id=\"522e48d\"><strong>FK 7 DSB ring <sup><sub>4<\/sub><\/sup>)<\/strong><\/p>\n\t\t\t\t\t<img decoding=\"async\" class=\"e-image-base fey-product-render-image\" data-interaction-id=\"48f94bf\" data-e-type=\"widget\" data-id=\"48f94bf\" id=\"3936\" src=\"https:\/\/fey-lamellenringe.de\/wp-content\/uploads\/2026\/04\/FK-7-DSB-Ringe.webp\" width=\"874\" height=\"668\" srcset=\"\" alt=\"\"\/>\t\t\t\t\t<p class=\"fey-body-text fey-product-description-text e-paragraph-base\" data-interaction-id=\"771188f\" data-e-type=\"widget\" data-id=\"771188f\"><strong id=\"e-mo79mhc8-ggt92uc\">Order information <sup id=\"e-mo79mhc8-obuhyln\"><sub id=\"e-mo79mhc8-ik71ntx\">4)<\/sub><\/sup>: <\/strong><br\/>For enquiries and\/or orders, please specify the exact bore diameter <strong id=\"e-mo79mhc8-austcvy\">\u201cD\u2081\u201d<\/strong>, the operating temperature and rotation speed!<\/p>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-fd47028 e-con e-atomic-element e-div-block-base e-fd47028-b5b38c2 \" data-id=\"fd47028\" data-element_type=\"e-div-block\" data-e-type=\"e-div-block\" data-interaction-id=\"fd47028\" data-e-type=\"e-div-block\" data-id=\"fd47028\">\n    <div class=\"elementor-element elementor-element-90e1e96 e-con e-atomic-element e-div-block-base e-90e1e96-5f6527c \" data-id=\"90e1e96\" data-element_type=\"e-div-block\" data-e-type=\"e-div-block\" data-interaction-id=\"90e1e96\" data-e-type=\"e-div-block\" data-id=\"90e1e96\">\n    \t\t\t<img loading=\"lazy\" decoding=\"async\" class=\"e-image-base e-304ef2b-96fe417 arrow-right\" data-interaction-id=\"304ef2b\" data-e-type=\"widget\" data-id=\"304ef2b\" id=\"3617\" src=\"https:\/\/fey-lamellenringe.de\/wp-content\/uploads\/2026\/03\/fey-arrow-right.svg\" width=\"21\" height=\"15\" srcset=\"\" alt=\"\"\/>\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" class=\"e-image-base e-422ade3-1378d6f\" data-interaction-id=\"422ade3\" data-e-type=\"widget\" data-id=\"422ade3\" id=\"3779\" src=\"https:\/\/fey-lamellenringe.de\/wp-content\/uploads\/2026\/05\/FK7DSB_TechnicalDrawing_EN.svg\" width=\"495\" height=\"168\" srcset=\"\" alt=\"\"\/>\t\t\n<\/div>\n<div class=\"elementor-element elementor-element-50ab308 e-con e-atomic-element e-div-block-base e-50ab308-3d53ffa \" data-id=\"50ab308\" data-element_type=\"e-div-block\" data-e-type=\"e-div-block\" data-interaction-id=\"50ab308\" data-e-type=\"e-div-block\" data-id=\"50ab308\">\n    <div class=\"elementor-element elementor-element-94672cf e-con e-atomic-element e-div-block-base e-94672cf-a2fa893 \" data-id=\"94672cf\" data-element_type=\"e-div-block\" data-e-type=\"e-div-block\" data-interaction-id=\"94672cf\" data-e-type=\"e-div-block\" data-id=\"94672cf\">\n    \t\t\t<img loading=\"lazy\" decoding=\"async\" class=\"e-image-base e-f1e69f4-39e01f6\" data-interaction-id=\"f1e69f4\" data-e-type=\"widget\" data-id=\"f1e69f4\" id=\"3780\" src=\"https:\/\/fey-lamellenringe.de\/wp-content\/uploads\/2026\/05\/FK7DSB_Header_EN.svg\" width=\"519\" height=\"56\" srcset=\"\" alt=\"\"\/>\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" class=\"e-image-base e-8ba3f87-728eee4\" data-interaction-id=\"8ba3f87\" data-e-type=\"widget\" data-id=\"8ba3f87\" id=\"3781\" src=\"https:\/\/fey-lamellenringe.de\/wp-content\/uploads\/2026\/05\/FK7DSB_Body_EN.svg\" width=\"519\" height=\"354\" srcset=\"\" alt=\"\"\/>\t\t\n<\/div>\n\n<\/div>\n\n<\/div>\n<div class=\"elementor-element elementor-element-e961065 e-con-full e-flex e-con e-parent\" data-id=\"e961065\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<p class=\"fey-body-text e-e90e6fd-3189c92 fey-infobox-text fey-product-description-text e-paragraph-base\" data-interaction-id=\"e90e6fd\" data-e-type=\"widget\" data-id=\"e90e6fd\"><strong>All dimensions in mm, *reinforced ring design<\/strong><br\/><strong>Note:<\/strong> Please refer to the information on pages 13, 62, 63, 64 and 65 (questionnaire).<br\/>All dimensions in mm, *reinforced ring design<\/p>\n\t\t\t\t<\/div>\n\t\t\n<\/div>\n\n<\/div>\n\n<\/div>\n\n<\/div>\n\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>FK 7 DSBESB \/ ESW \/ DSW \/ DMS fk 7 DSB Double laminar retaining rings for bores FK 7 DSB double retaining ring for bore The double wound laminar retaining rings \u201cFK&nbsp;7&nbsp;DSB\u201d for bores and \u201cFK&nbsp;7&nbsp;DSW\u201d for shafts are a valuable addition to the \u201cFK&nbsp;7&nbsp;ESB\u201d and \u201cFK&nbsp;7&nbsp;ESW\u201d single wound laminar retaining rings. The range [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":4320,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-3937","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Internal Retaining Rings FK 7 DSB | Fey Laminar Rings<\/title>\n<meta name=\"description\" content=\"Double-wound FK 7 DSB internal retaining rings. Provides a secure, heavy-duty axial fit in bores with a lugless design for maximum clearance and balance.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/fey-lamellenringe.de\/en\/laminar-rings\/retaining-rings\/fk-7-dsb\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Internal Retaining Rings FK 7 DSB | Fey Laminar Rings\" \/>\n<meta property=\"og:description\" content=\"Double-wound FK 7 DSB internal retaining rings. 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