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(jin)湊(cou)，傳遞(di)扭(niu)矩大，使用(yong)壽命長(chang)，免維護，耐(nai)高溫(wen)，耐(nai)酸堿防腐蝕，適用(yong)于高溫(wen)高速及有腐蝕工況環境的軸系傳動(dong)。

膜(mo)片型聯軸(zhou)器能補償主(zhu)動(dong)(dong)機(ji)與從動(dong)(dong)機(ji)之間(jian)由(you)于(yu)制造誤差、安裝誤差、承(cheng)載變(bian)形以(yi)及(ji)溫升變(bian)化的(de)影(ying)響(xiang)等(deng)所引起的(de)軸(zhou)向、徑(jing)向和(he)角向偏移。膜(mo)片彈(dan)性(xing)(xing)聯軸(zhou)器屬金(jin)屬彈(dan)性(xing)(xing)元件撓(nao)性(xing)(xing)聯軸(zhou)器，其依靠金(jin)屬聯軸(zhou)器膜(mo)片來聯接主(zhu)、從動(dong)(dong)機(ji)傳遞扭矩，具有彈(dan)性(xing)(xing)減振、無(wu)噪聲、不需潤滑的(de)優點。

膜(mo)(mo)片(pian)(pian)(pian)(pian)(pian)聯(lian)軸(zhou)(zhou)(zhou)(zhou)(zhou)器(qi)(qi)至少由一個(ge)膜(mo)(mo)片(pian)(pian)(pian)(pian)(pian)和(he)兩個(ge)軸(zhou)(zhou)(zhou)(zhou)(zhou)套(tao)組(zu)成。膜(mo)(mo)片(pian)(pian)(pian)(pian)(pian)被用(yong)銷釘緊固在軸(zhou)(zhou)(zhou)(zhou)(zhou)套(tao)上一般(ban)不(bu)會松動或(huo)引(yin)起(qi)膜(mo)(mo)片(pian)(pian)(pian)(pian)(pian)和(he)軸(zhou)(zhou)(zhou)(zhou)(zhou)套(tao)之間的反沖。有一些生產商提(ti)供(gong)兩個(ge)膜(mo)(mo)片(pian)(pian)(pian)(pian)(pian)的，也(ye)有提(ti)供(gong)三個(ge)膜(mo)(mo)片(pian)(pian)(pian)(pian)(pian)的，中間有一個(ge)或(huo)兩個(ge)剛性元件，兩邊 再(zai)連在軸(zhou)(zhou)(zhou)(zhou)(zhou)套(tao)上。單膜(mo)(mo)片(pian)(pian)(pian)(pian)(pian)聯(lian)軸(zhou)(zhou)(zhou)(zhou)(zhou)器(qi)(qi)和(he)雙膜(mo)(mo)片(pian)(pian)(pian)(pian)(pian)聯(lian)軸(zhou)(zhou)(zhou)(zhou)(zhou)器(qi)(qi)的不(bu)同(tong)之處是處理各(ge)種偏(pian)差能力的不(bu)同(tong)，鑒于其需要膜(mo)(mo)片(pian)(pian)(pian)(pian)(pian)能復雜的彎(wan)曲，所(suo)以(yi)單膜(mo)(mo)片(pian)(pian)(pian)(pian)(pian)聯(lian)軸(zhou)(zhou)(zhou)(zhou)(zhou)器(qi)(qi)不(bu)太適應偏(pian)心。而雙膜(mo)(mo)片(pian)(pian)(pian)(pian)(pian)聯(lian)軸(zhou)(zhou)(zhou)(zhou)(zhou)器(qi)(qi)可以(yi)同(tong)時曲向不(bu)同(tong)的方向，以(yi)此來補償偏(pian)心。