{"id":60742,"date":"2026-10-28T15:44:43","date_gmt":"2026-10-28T14:44:43","guid":{"rendered":"https:\/\/www.swissbells.com\/?post_type=glossary&#038;p=60742"},"modified":"2026-10-29T15:25:24","modified_gmt":"2026-10-29T14:25:24","slug":"clapper-kallen","status":"publish","type":"glossary","link":"https:\/\/www.swissbells.com\/en\/glossary\/clapper-kallen\/","title":{"rendered":"Clapper (Kallen)"},"content":{"rendered":"<p><\/p>\n<div class=\"sg-entry\">\n<p class=\"sg-eyebrow\">Bell knowledge \u00b7 Parts &amp; function<\/p>\n<p class=\"sg-lead\">The clapper hangs inside a bell or Treichel. When moved, it strikes the wall and makes the bell body sound.<\/p>\n<h2>What do Kallen, Challen or Knallen mean?<\/h2>\n<p>Various regional names are used for the clapper, including Kallen, Challen, Haller and Knallen. They refer to the moving part that strikes inside.<\/p>\n<h2>The bell and clapper must match<\/h2>\n<p>The clapper\u2019s length, shape, weight and suspension influence where and how it strikes the bell body. A random replacement will therefore not automatically suit every bell.<\/p>\n<p>Suitable replacement clappers are available directly in the online shop. Choose the version for your bell or Treichel model. They are supplied ready to fit. If you are unsure, the model name and photographs of the bell, its inner suspension and existing clapper help us identify the right one.<\/p>\n<p>If the bell body or suspension is damaged, have the bell checked by a specialist workshop, such as a smithy, before further use. They can assess whether and how it can be repaired.<\/p>\n<section id=\"kallen-montage\" style=\"scroll-margin-top:180px;\">\n<h2>Replace a clapper yourself: the video guide<\/h2>\n<p>You can replace a suitable, ready-to-fit clapper yourself. Our video shows how it is fitted.<\/p>\n<div style=\"position:relative;width:100%;max-width:800px;margin:24px auto;aspect-ratio:16\/9;\">\n<div class=\"brlbs-cmpnt-container brlbs-cmpnt-content-blocker brlbs-cmpnt-with-individual-styles\" data-borlabs-cookie-content-blocker-id=\"youtube-content-blocker\" data-borlabs-cookie-content=\"PGlmcmFtZSB0aXRsZT0iRml0dGluZyBhIGJlbGwgY2xhcHBlciDigJMgdmlkZW8gZ3VpZGUiIHNyYz0iaHR0cHM6Ly93d3cueW91dHViZS1ub2Nvb2tpZS5jb20vZW1iZWQvbUN2TkJZRnJONkUiIHdpZHRoPSI4MDAiIGhlaWdodD0iNDUwIiBsb2FkaW5nPSJsYXp5IiBzdHlsZT0icG9zaXRpb246YWJzb2x1dGU7aW5zZXQ6MDt3aWR0aDoxMDAlO2hlaWdodDoxMDAlO2JvcmRlcjowOyIgYWxsb3c9ImVuY3J5cHRlZC1tZWRpYTtwaWN0dXJlLWluLXBpY3R1cmUiIGFsbG93ZnVsbHNjcmVlbj48L2lmcmFtZT4=\">\n<div class=\"brlbs-cmpnt-cb-preset-c brlbs-cmpnt-cb-youtube\">\n<div class=\"brlbs-cmpnt-cb-thumbnail\" style=\"background-image: url('https:\/\/www.swissbells.com\/wp-content\/uploads\/borlabs-cookie\/1\/yt_mCvNBYFrN6E_hqdefault.jpg')\"><\/div>\n<div class=\"brlbs-cmpnt-cb-main\">\n<div class=\"brlbs-cmpnt-cb-play-button\"><\/div>\n<div class=\"brlbs-cmpnt-cb-content\">\n<p class=\"brlbs-cmpnt-cb-description\">You are currently viewing a placeholder content from <strong>YouTube<\/strong>. To access the actual content, click the button below. Please note that doing so will share data with third-party providers.<\/p>\n<p> <a class=\"brlbs-cmpnt-cb-provider-toggle\" href=\"#\" data-borlabs-cookie-show-provider-information role=\"button\">More Information<\/a> <\/div>\n<div class=\"brlbs-cmpnt-cb-buttons\"> <a class=\"brlbs-cmpnt-cb-btn\" href=\"#\" data-borlabs-cookie-unblock role=\"button\">Unblock content<\/a> <a class=\"brlbs-cmpnt-cb-btn\" href=\"#\" data-borlabs-cookie-accept-service role=\"button\" style=\"display: inherit\">Accept required service and unblock content<\/a> <\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/div>\n<\/div>\n<p><a class=\"noLightbox\" href=\"https:\/\/www.youtube.com\/watch?v=mCvNBYFrN6E\" target=\"_blank\" rel=\"noopener noreferrer\">Watch the fitting video on YouTube \u2197<\/a><\/p>\n<\/section>\n<aside class=\"sg-related\">\n<h2>Related guides and terms<\/h2>\n<nav aria-label=\"Related terms\"><a href=\"https:\/\/www.swissbells.com\/en\/glossary\/cow-bells\/\">Cowbells \u2197<\/a><a href=\"https:\/\/www.swissbells.com\/en\/glossary\/bronze\/\">Bronze \u2197<\/a><a href=\"https:\/\/www.swissbells.com\/en\/glossary\/bell-or-treichel\/\">Bell or Treichel? With sound samples \u2197<\/a><a href=\"https:\/\/www.swissbells.com\/en\/glossary\/bell-size-strap-measurements-care\/\">Bell size, strap measurements &amp; care \u2197<\/a><a href=\"https:\/\/www.swissbells.com\/en\/glossary\/bronze-bells\/\">Berger bronze bells: production and selection \u2197<\/a><\/nav>\n<\/aside>\n<div class=\"sg-next\">\n<h2>Find the right clapper.<\/h2>\n<p>Choose the right clapper for your bell or Treichel model directly in the shop. We are happy to help with questions about the version you need.<\/p>\n<div class=\"sg-actions\"><a class=\"sg-button\" href=\"https:\/\/shop.swissbells.com\/en\/category\/clappers\">Clappers and spare parts in the shop \u2197<\/a><a class=\"sg-button sg-secondary\" href=\"https:\/\/www.swissbells.com\/en\/contact\/#sc-anfrage\">Ask about a bell or clapper \u2197<\/a><\/div>\n<\/div>\n<\/div>\n<p><\/p>\n<style id=\"kallen-video-mobile\">@media(max-width:600px){#kallen-montage>div:has(.brlbs-cmpnt-content-blocker){aspect-ratio:auto!important;}#kallen-montage .brlbs-cmpnt-cb-preset-c{height:auto!important;min-height:400px;aspect-ratio:auto!important;}#kallen-montage .brlbs-cmpnt-cb-main{height:auto!important;max-height:none!important;overflow:visible!important;}}<\/style>\n","protected":false},"excerpt":{"rendered":"<p>Bell knowledge &middot; Parts &amp; function The clapper hangs inside a bell or <a class=\"glossaryLink\" aria-describedby=\"tt\" data-cmtooltip=\"&lt;div class=glossaryItemTitle&gt;Treichel&lt;\/div&gt;&lt;div class=glossaryItemBody&gt;A Treichel is a livestock bell made from shaped sheet steel. Both hand-forged and machine-made versions are available.&lt;\/div&gt;\" href=\"https:\/\/www.swissbells.com\/en\/glossary\/treichel\/\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">Treichel<\/a>. When moved, it strikes the wall and makes the bell body sound. What do Kallen, Challen or Knallen mean? Various regional names are used for the clapper, including Kallen, Challen, Haller and Knallen. They refer to the moving part that strikes [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"menu_order":0,"template":"","meta":{"footnotes":""},"class_list":["post-60742","glossary","type-glossary","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Bell clappers: replacement and fitting | SwissBells<\/title>\n<meta name=\"description\" content=\"Find the right clapper for your bell or Treichel, with a video showing how to fit a ready-to-install replacement.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.swissbells.com\/en\/glossary\/clapper-kallen\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Bell clappers: replacement and fitting 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