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，使用(yong)壽命長，免維護(hu)，耐高溫，耐酸堿(jian)防腐(fu)蝕(shi)，適用(yong)于高溫高速及(ji)有(you)腐(fu)蝕(shi)工(gong)況環境的軸系(xi)傳動。

膜片型聯(lian)軸器能(neng)補償主動機(ji)與從動機(ji)之(zhi)間由(you)于制造誤差、安(an)裝誤差、承載變(bian)形(xing)以(yi)及溫升變(bian)化(hua)的影響等所引起的軸向(xiang)、徑向(xiang)和角向(xiang)偏移。膜片彈(dan)性聯(lian)軸器屬(shu)金屬(shu)彈(dan)性元(yuan)件撓性聯(lian)軸器，其依靠金屬(shu)聯(lian)軸器膜片來聯(lian)接(jie)主、從動機(ji)傳(chuan)遞扭矩，具(ju)有彈(dan)性減振、無噪聲、不需潤(run)滑的優點。

膜(mo)(mo)(mo)片(pian)(pian)(pian)聯軸(zhou)(zhou)(zhou)器(qi)至少由一(yi)(yi)個膜(mo)(mo)(mo)片(pian)(pian)(pian)和(he)兩(liang)(liang)個軸(zhou)(zhou)(zhou)套組成。膜(mo)(mo)(mo)片(pian)(pian)(pian)被用銷(xiao)釘緊固在軸(zhou)(zhou)(zhou)套上一(yi)(yi)般不(bu)會松(song)動或引(yin)起膜(mo)(mo)(mo)片(pian)(pian)(pian)和(he)軸(zhou)(zhou)(zhou)套之間的反沖。有(you)一(yi)(yi)些生產商提供(gong)兩(liang)(liang)個膜(mo)(mo)(mo)片(pian)(pian)(pian)的，也(ye)有(you)提供(gong)三個膜(mo)(mo)(mo)片(pian)(pian)(pian)的，中間有(you)一(yi)(yi)個或兩(liang)(liang)個剛(gang)性元件(jian)，兩(liang)(liang)邊 再(zai)連(lian)在軸(zhou)(zhou)(zhou)套上。單膜(mo)(mo)(mo)片(pian)(pian)(pian)聯軸(zhou)(zhou)(zhou)器(qi)和(he)雙膜(mo)(mo)(mo)片(pian)(pian)(pian)聯軸(zhou)(zhou)(zhou)器(qi)的不(bu)同(tong)(tong)之處是處理各種偏(pian)(pian)差能(neng)力的不(bu)同(tong)(tong)，鑒于其需要膜(mo)(mo)(mo)片(pian)(pian)(pian)能(neng)復雜的彎曲(qu)，所(suo)以單膜(mo)(mo)(mo)片(pian)(pian)(pian)聯軸(zhou)(zhou)(zhou)器(qi)不(bu)太適應(ying)偏(pian)(pian)心。而雙膜(mo)(mo)(mo)片(pian)(pian)(pian)聯軸(zhou)(zhou)(zhou)器(qi)可以同(tong)(tong)時(shi)曲(qu)向(xiang)不(bu)同(tong)(tong)的方向(xiang)，以此來補償偏(pian)(pian)心。