膜片聯軸器在傳遞扭矩的同時通過彈性膜片的的變形來補償軸向和角向的位移，是一種高性能的金屬彈性撓性聯軸器。膜片式聯軸器結構緊湊，傳遞扭矩大(da)，使(shi)用(yong)壽命長，免維護(hu)，耐(nai)高(gao)溫，耐(nai)酸堿防腐蝕，適用(yong)于(yu)高(gao)溫高(gao)速(su)及有腐蝕工況環境(jing)的軸系傳動。

膜(mo)片(pian)型聯(lian)軸器能(neng)補償主動機與(yu)從(cong)動機之間由于(yu)制造誤差(cha)、安(an)裝誤差(cha)、承載變(bian)形以(yi)及溫升變(bian)化的影響等所(suo)引起的軸向(xiang)(xiang)、徑向(xiang)(xiang)和角向(xiang)(xiang)偏(pian)移。膜(mo)片(pian)彈(dan)性聯(lian)軸器屬(shu)金(jin)屬(shu)彈(dan)性元件撓性聯(lian)軸器，其依靠金(jin)屬(shu)聯(lian)軸器膜(mo)片(pian)來聯(lian)接(jie)主、從(cong)動機傳遞扭矩，具(ju)有彈(dan)性減振(zhen)、無噪聲、不需潤滑的優點。

膜(mo)(mo)(mo)(mo)(mo)片(pian)(pian)(pian)(pian)聯(lian)(lian)軸(zhou)器(qi)(qi)(qi)至少由一(yi)(yi)個(ge)(ge)膜(mo)(mo)(mo)(mo)(mo)片(pian)(pian)(pian)(pian)和(he)兩(liang)(liang)個(ge)(ge)軸(zhou)套(tao)組(zu)成。膜(mo)(mo)(mo)(mo)(mo)片(pian)(pian)(pian)(pian)被用銷釘(ding)緊固在軸(zhou)套(tao)上一(yi)(yi)般不(bu)(bu)會松動或引起膜(mo)(mo)(mo)(mo)(mo)片(pian)(pian)(pian)(pian)和(he)軸(zhou)套(tao)之間(jian)的(de)(de)反(fan)沖(chong)。有一(yi)(yi)些生產(chan)商提供(gong)兩(liang)(liang)個(ge)(ge)膜(mo)(mo)(mo)(mo)(mo)片(pian)(pian)(pian)(pian)的(de)(de)，也有提供(gong)三個(ge)(ge)膜(mo)(mo)(mo)(mo)(mo)片(pian)(pian)(pian)(pian)的(de)(de)，中間(jian)有一(yi)(yi)個(ge)(ge)或兩(liang)(liang)個(ge)(ge)剛性元件，兩(liang)(liang)邊(bian) 再連在軸(zhou)套(tao)上。單(dan)膜(mo)(mo)(mo)(mo)(mo)片(pian)(pian)(pian)(pian)聯(lian)(lian)軸(zhou)器(qi)(qi)(qi)和(he)雙膜(mo)(mo)(mo)(mo)(mo)片(pian)(pian)(pian)(pian)聯(lian)(lian)軸(zhou)器(qi)(qi)(qi)的(de)(de)不(bu)(bu)同(tong)(tong)之處是處理各種偏差能力的(de)(de)不(bu)(bu)同(tong)(tong)，鑒于其需要膜(mo)(mo)(mo)(mo)(mo)片(pian)(pian)(pian)(pian)能復雜(za)的(de)(de)彎曲，所以單(dan)膜(mo)(mo)(mo)(mo)(mo)片(pian)(pian)(pian)(pian)聯(lian)(lian)軸(zhou)器(qi)(qi)(qi)不(bu)(bu)太適應偏心(xin)。而雙膜(mo)(mo)(mo)(mo)(mo)片(pian)(pian)(pian)(pian)聯(lian)(lian)軸(zhou)器(qi)(qi)(qi)可以同(tong)(tong)時(shi)曲向不(bu)(bu)同(tong)(tong)的(de)(de)方向，以此來補償偏心(xin)。