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)，使用(yong)壽命(ming)長，免維護，耐高(gao)溫，耐酸(suan)堿防(fang)腐蝕，適(shi)用(yong)于高(gao)溫高(gao)速及有腐蝕工況環(huan)境的(de)軸(zhou)系(xi)傳動。

膜(mo)片(pian)(pian)型聯(lian)軸(zhou)(zhou)器(qi)能補(bu)償主動機與從(cong)動機之間由于制造誤差、安裝誤差、承載變(bian)形(xing)以及溫升變(bian)化(hua)的(de)影響等所引(yin)起的(de)軸(zhou)(zhou)向(xiang)(xiang)、徑向(xiang)(xiang)和角(jiao)向(xiang)(xiang)偏(pian)移。膜(mo)片(pian)(pian)彈性(xing)聯(lian)軸(zhou)(zhou)器(qi)屬(shu)(shu)金屬(shu)(shu)彈性(xing)元件撓性(xing)聯(lian)軸(zhou)(zhou)器(qi)，其依靠金屬(shu)(shu)聯(lian)軸(zhou)(zhou)器(qi)膜(mo)片(pian)(pian)來(lai)聯(lian)接主、從(cong)動機傳遞(di)扭矩，具有彈性(xing)減(jian)振、無噪聲、不(bu)需潤滑(hua)的(de)優點。

膜(mo)(mo)片(pian)(pian)(pian)聯(lian)(lian)(lian)軸(zhou)(zhou)器至少由一個(ge)(ge)膜(mo)(mo)片(pian)(pian)(pian)和兩(liang)(liang)個(ge)(ge)軸(zhou)(zhou)套(tao)組(zu)成。膜(mo)(mo)片(pian)(pian)(pian)被用銷釘緊固在(zai)軸(zhou)(zhou)套(tao)上一般(ban)不(bu)(bu)會(hui)松(song)動或引起膜(mo)(mo)片(pian)(pian)(pian)和軸(zhou)(zhou)套(tao)之間的反沖。有一些生(sheng)產商提供兩(liang)(liang)個(ge)(ge)膜(mo)(mo)片(pian)(pian)(pian)的，也有提供三個(ge)(ge)膜(mo)(mo)片(pian)(pian)(pian)的，中間有一個(ge)(ge)或兩(liang)(liang)個(ge)(ge)剛性元件(jian)，兩(liang)(liang)邊 再連(lian)在(zai)軸(zhou)(zhou)套(tao)上。單膜(mo)(mo)片(pian)(pian)(pian)聯(lian)(lian)(lian)軸(zhou)(zhou)器和雙(shuang)(shuang)膜(mo)(mo)片(pian)(pian)(pian)聯(lian)(lian)(lian)軸(zhou)(zhou)器的不(bu)(bu)同(tong)之處是(shi)處理各種偏差能(neng)力的不(bu)(bu)同(tong)，鑒(jian)于其需要膜(mo)(mo)片(pian)(pian)(pian)能(neng)復雜的彎曲(qu)，所以(yi)(yi)單膜(mo)(mo)片(pian)(pian)(pian)聯(lian)(lian)(lian)軸(zhou)(zhou)器不(bu)(bu)太適應偏心。而雙(shuang)(shuang)膜(mo)(mo)片(pian)(pian)(pian)聯(lian)(lian)(lian)軸(zhou)(zhou)器可以(yi)(yi)同(tong)時(shi)曲(qu)向不(bu)(bu)同(tong)的方向，以(yi)(yi)此來(lai)補償偏心。