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(chuan)遞扭矩大，使用壽命長，免維(wei)護，耐高(gao)溫，耐酸(suan)堿防腐蝕(shi)，適用于高(gao)溫高(gao)速及有腐蝕(shi)工(gong)況環境的(de)軸系(xi)傳(chuan)動。

膜片(pian)(pian)型聯(lian)(lian)軸(zhou)器(qi)能補償主動(dong)機與從動(dong)機之間由于制造誤差(cha)(cha)、安(an)裝誤差(cha)(cha)、承(cheng)載變(bian)(bian)形以及溫升(sheng)變(bian)(bian)化(hua)的(de)影響等(deng)所引起的(de)軸(zhou)向(xiang)(xiang)、徑向(xiang)(xiang)和角向(xiang)(xiang)偏移。膜片(pian)(pian)彈(dan)性(xing)聯(lian)(lian)軸(zhou)器(qi)屬金(jin)屬彈(dan)性(xing)元件撓性(xing)聯(lian)(lian)軸(zhou)器(qi)，其依靠金(jin)屬聯(lian)(lian)軸(zhou)器(qi)膜片(pian)(pian)來(lai)聯(lian)(lian)接主、從動(dong)機傳(chuan)遞扭矩，具有彈(dan)性(xing)減振、無噪聲、不需潤滑的(de)優點。

膜(mo)(mo)片(pian)(pian)(pian)(pian)聯軸(zhou)(zhou)器至少由一個(ge)(ge)(ge)膜(mo)(mo)片(pian)(pian)(pian)(pian)和兩(liang)(liang)個(ge)(ge)(ge)軸(zhou)(zhou)套組成(cheng)。膜(mo)(mo)片(pian)(pian)(pian)(pian)被(bei)用銷(xiao)釘緊固在(zai)軸(zhou)(zhou)套上一般不(bu)(bu)會松動或引起膜(mo)(mo)片(pian)(pian)(pian)(pian)和軸(zhou)(zhou)套之間的(de)反沖。有(you)一些生產商(shang)提供兩(liang)(liang)個(ge)(ge)(ge)膜(mo)(mo)片(pian)(pian)(pian)(pian)的(de)，也有(you)提供三個(ge)(ge)(ge)膜(mo)(mo)片(pian)(pian)(pian)(pian)的(de)，中間有(you)一個(ge)(ge)(ge)或兩(liang)(liang)個(ge)(ge)(ge)剛性元件，兩(liang)(liang)邊 再連在(zai)軸(zhou)(zhou)套上。單(dan)膜(mo)(mo)片(pian)(pian)(pian)(pian)聯軸(zhou)(zhou)器和雙膜(mo)(mo)片(pian)(pian)(pian)(pian)聯軸(zhou)(zhou)器的(de)不(bu)(bu)同(tong)之處(chu)是處(chu)理各種偏差能力的(de)不(bu)(bu)同(tong)，鑒于其需(xu)要膜(mo)(mo)片(pian)(pian)(pian)(pian)能復(fu)雜的(de)彎曲(qu)，所以(yi)單(dan)膜(mo)(mo)片(pian)(pian)(pian)(pian)聯軸(zhou)(zhou)器不(bu)(bu)太(tai)適應偏心。而雙膜(mo)(mo)片(pian)(pian)(pian)(pian)聯軸(zhou)(zhou)器可以(yi)同(tong)時曲(qu)向不(bu)(bu)同(tong)的(de)方向，以(yi)此來補(bu)償(chang)偏心。