{"id":1112,"date":"2024-07-08T17:21:26","date_gmt":"2024-07-08T11:51:26","guid":{"rendered":"https:\/\/study.madeeasy.in\/?p=1112"},"modified":"2025-07-16T15:02:26","modified_gmt":"2025-07-16T09:32:26","slug":"transmission-angle","status":"publish","type":"post","link":"https:\/\/www.madeeasy.in\/study\/me\/theory-of-machines\/transmission-angle","title":{"rendered":"Transmission Angle"},"content":{"rendered":"

In Fig. if AB<\/em> is the input link, the force applied to the output, CD<\/em>, is transmitted through the coupler link BC<\/em>.<\/p>\n

Here, pushing on the link CD <\/em>imposes a force on the link AB<\/em>, which is transmitted through the link BC<\/em>. For<\/p>\n

\"Transmission<\/p>\n

sufficiently slow motions (negligible inertia forces), the force in the coupler link is pure tension or compression (negligible bending action) and is directed along BC<\/em>. For a given force in the coupler link, the torque transmitted to the output bar (about point D<\/em>) is maximum when the angle \u03bc between coupler bar BC <\/em>and output bar CD <\/em>is \u03c0\/2.\u00a0Therefore, \u2220BCD <\/em>is called transmission angle.<\/p>\n

\u03b1max<\/sub> = \u23d090\u00b0 \u2013 \u03bc\u23d0min<\/sub> < 50\u00b0<\/p>\n

The angle \u03bc between the output link and the coupler is known as transmission angle as shown in Fig. For toggle position, \u03bc is zero.<\/p>\n

If \u03bc deviates significantly from 90\u00b0, the torque on the output link decreases. Sometimes, \u03bc may not be sufficient to overcome the friction in the system and the mechanism may be<\/p>\n

\"Deviates\"<\/p>\n

locked or jammed. Hence, \u03bc is usually kept more than 45\u00b0. The best mechanisms, therefore, have a transmission angle that does not deviate much from 90\u00b0.<\/p>\n

\"Crank<\/p>\n

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 <\/p>\n","protected":false},"excerpt":{"rendered":"

In Fig. if AB is the input link, the force applied to the output, CD, is transmitted through the coupler<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[287,10],"tags":[354,355],"class_list":["post-1112","post","type-post","status-publish","format-standard","hentry","category-theory-of-machines","category-me","tag-crank-rocker-mechanism","tag-maximum-transmission-angles"],"_links":{"self":[{"href":"https:\/\/www.madeeasy.in\/study\/wp-json\/wp\/v2\/posts\/1112","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.madeeasy.in\/study\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.madeeasy.in\/study\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.madeeasy.in\/study\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.madeeasy.in\/study\/wp-json\/wp\/v2\/comments?post=1112"}],"version-history":[{"count":0,"href":"https:\/\/www.madeeasy.in\/study\/wp-json\/wp\/v2\/posts\/1112\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.madeeasy.in\/study\/wp-json\/wp\/v2\/media?parent=1112"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.madeeasy.in\/study\/wp-json\/wp\/v2\/categories?post=1112"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.madeeasy.in\/study\/wp-json\/wp\/v2\/tags?post=1112"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}